truffle: graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/alloc/LinearScan.java annotate

annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/alloc/LinearScan.java @ 4199:aaac4894175c

Renamed cri packages from sun to oracle.

author	Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date	Tue, 03 Jan 2012 16:29:28 +0100
parents	9e0c1b4cfef5
children	430b5db3e6f8

rev	line source
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1 /*
4181 319860ae697a Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4169 diff changeset	2 * Copyright (c) 2009, 2012, Oracle and/or its affiliates. All rights reserved.
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	4 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	7 * published by the Free Software Foundation.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	8 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	13 * accompanied this code).
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	14 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	18 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	21 * questions.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	22 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	23 package com.oracle.max.graal.compiler.alloc;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	24
4199 aaac4894175c Renamed cri packages from sun to oracle. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 4183 diff changeset	25 import static com.oracle.max.cri.ci.CiUtil.*;
aaac4894175c Renamed cri packages from sun to oracle. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 4183 diff changeset	26 import static com.oracle.max.cri.ci.CiValueUtil.*;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	27
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	28 import java.util.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	29
4199 aaac4894175c Renamed cri packages from sun to oracle. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 4183 diff changeset	30 import com.oracle.max.cri.ci.*;
aaac4894175c Renamed cri packages from sun to oracle. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 4183 diff changeset	31 import com.oracle.max.cri.ri.*;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	32 import com.oracle.max.criutils.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	33 import com.oracle.max.graal.compiler.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	34 import com.oracle.max.graal.compiler.alloc.Interval.RegisterBinding;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	35 import com.oracle.max.graal.compiler.alloc.Interval.RegisterPriority;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	36 import com.oracle.max.graal.compiler.alloc.Interval.SpillState;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	37 import com.oracle.max.graal.compiler.gen.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	38 import com.oracle.max.graal.compiler.lir.*;
4181 319860ae697a Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4169 diff changeset	39 import com.oracle.max.graal.compiler.lir.LIRInstruction.OperandMode;
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	40 import com.oracle.max.graal.compiler.lir.LIRInstruction.ValueProcedure;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	41 import com.oracle.max.graal.compiler.util.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	42 import com.oracle.max.graal.graph.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	43 import com.oracle.max.graal.nodes.*;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	44
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	45 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	46 * An implementation of the linear scan register allocator algorithm described
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	47 * in <a href="http://doi.acm.org/10.1145/1064979.1064998">"Optimized Interval Splitting in a Linear Scan Register Allocator"</a>
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	48 * by Christian Wimmer and Hanspeter Moessenboeck.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	49 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	50 public final class LinearScan {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	51
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	52 final GraalContext context;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	53 final GraalCompilation compilation;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	54 final LIR ir;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	55 final LIRGenerator gen;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	56 final FrameMap frameMap;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	57 final RiRegisterAttributes[] registerAttributes;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	58 final CiRegister[] registers;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	59
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	60 private static final int INITIAL_SPLIT_INTERVALS_CAPACITY = 32;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	61
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	62 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	63 * List of blocks in linear-scan order. This is only correct as long as the CFG does not change.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	64 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	65 final LIRBlock[] sortedBlocks;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	66
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	67 final OperandPool operands;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	68
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	69 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	70 * Map from {@linkplain #operandNumber(CiValue) operand numbers} to intervals.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	71 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	72 Interval[] intervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	73
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	74 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	75 * The number of valid entries in {@link #intervals}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	76 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	77 int intervalsSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	78
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	79 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	80 * The index of the first entry in {@link #intervals} for a {@linkplain #createDerivedInterval(Interval) derived interval}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	81 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	82 int firstDerivedIntervalIndex = -1;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	83
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	84 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	85 * Intervals sorted by {@link Interval#from()}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	86 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	87 Interval[] sortedIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	88
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	89 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	90 * Map from an instruction {@linkplain LIRInstruction#id id} to the instruction.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	91 * Entries should be retrieved with {@link #instructionForId(int)} as the id is
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	92 * not simply an index into this array.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	93 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	94 LIRInstruction[] opIdToInstructionMap;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	95
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	96 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	97 * Map from an instruction {@linkplain LIRInstruction#id id} to the {@linkplain
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	98 * LIRBlock block} containing the instruction. Entries should be retrieved with
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	99 * {@link #blockForId(int)} as the id is not simply an index into this array.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	100 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	101 LIRBlock[] opIdToBlockMap;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	102
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	103 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	104 * Bit set for each variable that is contained in each loop.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	105 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	106 BitMap2D intervalInLoop;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	107
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	108 public LinearScan(GraalCompilation compilation, LIR ir, LIRGenerator gen, FrameMap frameMap) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	109 this.context = compilation.compiler.context;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	110 this.compilation = compilation;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	111 this.ir = ir;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	112 this.gen = gen;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	113 this.frameMap = frameMap;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	114 this.sortedBlocks = ir.linearScanOrder().toArray(new LIRBlock[ir.linearScanOrder().size()]);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	115 CiRegister[] allocatableRegisters = compilation.registerConfig.getAllocatableRegisters();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	116 this.registers = new CiRegister[CiRegister.maxRegisterNumber(allocatableRegisters) + 1];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	117 for (CiRegister reg : allocatableRegisters) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	118 registers[reg.number] = reg;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	119 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	120 this.registerAttributes = compilation.registerConfig.getAttributesMap();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	121 this.operands = gen.operands;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	122 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	123
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	124 public static boolean isVariableOrRegister(CiValue value) {
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	125 return isVariable(value) \|\| isRegister(value);
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	126 }
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	127
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	128
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	129 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	130 * Converts an operand (variable or register) to an index in a flat address space covering all the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	131 * {@linkplain CiVariable variables} and {@linkplain CiRegisterValue registers} being processed by this
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	132 * allocator.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	133 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	134 int operandNumber(CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	135 return operands.operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	136 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	137
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	138 static final IntervalPredicate IS_PRECOLORED_INTERVAL = new IntervalPredicate() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	139 @Override
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	140 public boolean apply(Interval i) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	141 return isRegister(i.operand);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	142 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	143 };
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	144
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	145 static final IntervalPredicate IS_VARIABLE_INTERVAL = new IntervalPredicate() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	146 @Override
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	147 public boolean apply(Interval i) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	148 return isVariable(i.operand);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	149 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	150 };
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	151
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	152 static final IntervalPredicate IS_OOP_INTERVAL = new IntervalPredicate() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	153 @Override
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	154 public boolean apply(Interval i) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	155 return !isRegister(i.operand) && i.kind() == CiKind.Object;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	156 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	157 };
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	158
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	159 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	160 * Gets an object describing the attributes of a given register according to this register configuration.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	161 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	162 RiRegisterAttributes attributes(CiRegister reg) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	163 return registerAttributes[reg.number];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	164 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	165
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	166 void assignSpillSlot(Interval interval) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	167 // assign the canonical spill slot of the parent (if a part of the interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	168 // is already spilled) or allocate a new spill slot
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	169 if (interval.spillSlot() != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	170 interval.assignLocation(interval.spillSlot());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	171 } else {
4181 319860ae697a Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4169 diff changeset	172 CiStackSlot slot = frameMap.allocateSpillSlot(interval.kind());
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	173 interval.setSpillSlot(slot);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	174 interval.assignLocation(slot);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	175 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	176 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	177
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	178 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	179 * Creates a new interval.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	180 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	181 * @param operand the operand for the interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	182 * @return the created interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	183 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	184 Interval createInterval(CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	185 assert isProcessed(operand);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	186 assert isLegal(operand);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	187 int operandNumber = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	188 Interval interval = new Interval(context, operand, operandNumber);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	189 assert operandNumber < intervalsSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	190 assert intervals[operandNumber] == null;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	191 intervals[operandNumber] = interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	192 return interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	193 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	194
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	195 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	196 * Creates an interval as a result of splitting or spilling another interval.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	197 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	198 * @param source an interval being split of spilled
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	199 * @return a new interval derived from {@code source}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	200 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	201 Interval createDerivedInterval(Interval source) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	202 if (firstDerivedIntervalIndex == -1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	203 firstDerivedIntervalIndex = intervalsSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	204 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	205 if (intervalsSize == intervals.length) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	206 intervals = Arrays.copyOf(intervals, intervals.length * 2);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	207 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	208 intervalsSize++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	209 Interval interval = createInterval(operands.newVariable(source.kind()));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	210 assert intervals[intervalsSize - 1] == interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	211 return interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	212 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	213
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	214 // copy the variable flags if an interval is split
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	215 void copyRegisterFlags(Interval from, Interval to) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	216 if (operands.mustBeByteRegister(from.operand)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	217 operands.setMustBeByteRegister((CiVariable) to.operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	218 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	219
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	220 // Note: do not copy the mustStartInMemory flag because it is not necessary for child
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	221 // intervals (only the very beginning of the interval must be in memory)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	222 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	223
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	224 // access to block list (sorted in linear scan order)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	225 int blockCount() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	226 assert sortedBlocks.length == ir.linearScanOrder().size() : "invalid cached block list";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	227 return sortedBlocks.length;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	228 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	229
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	230 LIRBlock blockAt(int index) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	231 assert sortedBlocks[index] == ir.linearScanOrder().get(index) : "invalid cached block list";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	232 return sortedBlocks[index];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	233 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	234
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	235 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	236 * Gets the size of the {@link LIRBlock#liveIn} and {@link LIRBlock#liveOut} sets for a basic block. These sets do
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	237 * not include any operands allocated as a result of creating {@linkplain #createDerivedInterval(Interval) derived
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	238 * intervals}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	239 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	240 int liveSetSize() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	241 return firstDerivedIntervalIndex == -1 ? operands.size() : firstDerivedIntervalIndex;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	242 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	243
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	244 int numLoops() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	245 return compilation.stats.loopCount;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	246 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	247
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	248 boolean isIntervalInLoop(int interval, int loop) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	249 return intervalInLoop.at(interval, loop);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	250 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	251
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	252 Interval intervalFor(CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	253 int operandNumber = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	254 assert operandNumber < intervalsSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	255 return intervals[operandNumber];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	256 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	257
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	258 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	259 * Gets the highest instruction id allocated by this object.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	260 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	261 int maxOpId() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	262 assert opIdToInstructionMap.length > 0 : "no operations";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	263 return (opIdToInstructionMap.length - 1) << 1;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	264 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	265
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	266 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	267 * Converts an {@linkplain LIRInstruction#id instruction id} to an instruction index.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	268 * All LIR instructions in a method have an index one greater than their linear-scan order predecesor
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	269 * with the first instruction having an index of 0.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	270 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	271 static int opIdToIndex(int opId) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	272 return opId >> 1;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	273 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	274
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	275 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	276 * Retrieves the {@link LIRInstruction} based on its {@linkplain LIRInstruction#id id}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	277 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	278 * @param opId an instruction {@linkplain LIRInstruction#id id}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	279 * @return the instruction whose {@linkplain LIRInstruction#id} {@code == id}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	280 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	281 LIRInstruction instructionForId(int opId) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	282 assert isEven(opId) : "opId not even";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	283 LIRInstruction instr = opIdToInstructionMap[opIdToIndex(opId)];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	284 assert instr.id() == opId;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	285 return instr;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	286 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	287
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	288 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	289 * Gets the block containing a given instruction.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	290 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	291 * @param opId an instruction {@linkplain LIRInstruction#id id}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	292 * @return the block containing the instruction denoted by {@code opId}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	293 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	294 LIRBlock blockForId(int opId) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	295 assert opIdToBlockMap.length > 0 && opId >= 0 && opId <= maxOpId() + 1 : "opId out of range";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	296 return opIdToBlockMap[opIdToIndex(opId)];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	297 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	298
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	299 boolean isBlockBegin(int opId) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	300 return opId == 0 \|\| blockForId(opId) != blockForId(opId - 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	301 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	302
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	303 boolean coversBlockBegin(int opId1, int opId2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	304 return blockForId(opId1) != blockForId(opId2);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	305 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	306
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	307 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	308 * Determines if an {@link LIRInstruction} destroys all caller saved registers.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	309 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	310 * @param opId an instruction {@linkplain LIRInstruction#id id}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	311 * @return {@code true} if the instruction denoted by {@code id} destroys all caller saved registers.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	312 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	313 boolean hasCall(int opId) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	314 assert isEven(opId) : "opId not even";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	315 return instructionForId(opId).hasCall();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	316 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	317
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	318 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	319 * Eliminates moves from register to stack if the stack slot is known to be correct.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	320 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	321 void changeSpillDefinitionPos(Interval interval, int defPos) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	322 assert interval.isSplitParent() : "can only be called for split parents";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	323
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	324 switch (interval.spillState()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	325 case NoDefinitionFound:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	326 assert interval.spillDefinitionPos() == -1 : "must no be set before";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	327 interval.setSpillDefinitionPos(defPos);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	328 interval.setSpillState(SpillState.NoSpillStore);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	329 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	330
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	331 case NoSpillStore:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	332 assert defPos <= interval.spillDefinitionPos() : "positions are processed in reverse order when intervals are created";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	333 if (defPos < interval.spillDefinitionPos() - 2 \|\| instructionForId(interval.spillDefinitionPos()).code == StandardOpcode.XIR) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	334 // second definition found, so no spill optimization possible for this interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	335 interval.setSpillState(SpillState.NoOptimization);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	336 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	337 // two consecutive definitions (because of two-operand LIR form)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	338 assert blockForId(defPos) == blockForId(interval.spillDefinitionPos()) : "block must be equal";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	339 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	340 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	341
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	342 case NoOptimization:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	343 // nothing to do
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	344 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	345
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	346 default:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	347 throw new CiBailout("other states not allowed at this time");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	348 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	349 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	350
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	351 // called during register allocation
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	352 void changeSpillState(Interval interval, int spillPos) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	353 switch (interval.spillState()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	354 case NoSpillStore: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	355 int defLoopDepth = blockForId(interval.spillDefinitionPos()).loopDepth();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	356 int spillLoopDepth = blockForId(spillPos).loopDepth();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	357
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	358 if (defLoopDepth < spillLoopDepth) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	359 // the loop depth of the spilling position is higher then the loop depth
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	360 // at the definition of the interval . move write to memory out of loop
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	361 // by storing at definitin of the interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	362 interval.setSpillState(SpillState.StoreAtDefinition);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	363 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	364 // the interval is currently spilled only once, so for now there is no
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	365 // reason to store the interval at the definition
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	366 interval.setSpillState(SpillState.OneSpillStore);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	367 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	368 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	369 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	370
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	371 case OneSpillStore: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	372 // the interval is spilled more then once, so it is better to store it to
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	373 // memory at the definition
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	374 interval.setSpillState(SpillState.StoreAtDefinition);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	375 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	376 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	377
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	378 case StoreAtDefinition:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	379 case StartInMemory:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	380 case NoOptimization:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	381 case NoDefinitionFound:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	382 // nothing to do
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	383 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	384
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	385 default:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	386 throw new CiBailout("other states not allowed at this time");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	387 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	388 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	389
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	390 abstract static class IntervalPredicate {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	391 abstract boolean apply(Interval i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	392 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	393
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	394 private static final IntervalPredicate mustStoreAtDefinition = new IntervalPredicate() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	395 @Override
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	396 public boolean apply(Interval i) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	397 return i.isSplitParent() && i.spillState() == SpillState.StoreAtDefinition;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	398 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	399 };
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	400
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	401 // called once before assignment of register numbers
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	402 void eliminateSpillMoves() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	403 if (GraalOptions.TraceLinearScanLevel >= 3) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	404 TTY.println(" Eliminating unnecessary spill moves");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	405 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	406
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	407 // collect all intervals that must be stored after their definition.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	408 // the list is sorted by Interval.spillDefinitionPos
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	409 Interval interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	410 interval = createUnhandledLists(mustStoreAtDefinition, null).first;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	411 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	412 checkIntervals(interval);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	413 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	414
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	415 LIRInsertionBuffer insertionBuffer = new LIRInsertionBuffer();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	416 int numBlocks = blockCount();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	417 for (int i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	418 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	419 List<LIRInstruction> instructions = block.lir();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	420 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	421
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	422 // iterate all instructions of the block. skip the first because it is always a label
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	423 for (int j = 1; j < numInst; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	424 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	425 int opId = op.id();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	426
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	427 if (opId == -1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	428 CiValue resultOperand = op.result();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	429 // remove move from register to stack if the stack slot is guaranteed to be correct.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	430 // only moves that have been inserted by LinearScan can be removed.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	431 assert op.code == StandardOpcode.MOVE : "only moves can have a opId of -1";
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	432 assert isVariable(resultOperand) : "LinearScan inserts only moves to variables";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	433
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	434 Interval curInterval = intervalFor(resultOperand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	435
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	436 if (!isRegister(curInterval.location()) && curInterval.alwaysInMemory()) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	437 // move target is a stack slot that is always correct, so eliminate instruction
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	438 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	439 TTY.println("eliminating move from interval %d to %d", operandNumber(op.input(0)), operandNumber(op.result()));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	440 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	441 instructions.set(j, null); // null-instructions are deleted by assignRegNum
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	442 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	443
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	444 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	445 // insert move from register to stack just after the beginning of the interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	446 assert interval == Interval.EndMarker \|\| interval.spillDefinitionPos() >= opId : "invalid order";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	447 assert interval == Interval.EndMarker \|\| (interval.isSplitParent() && interval.spillState() == SpillState.StoreAtDefinition) : "invalid interval";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	448
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	449 while (interval != Interval.EndMarker && interval.spillDefinitionPos() == opId) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	450 if (!insertionBuffer.initialized()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	451 // prepare insertion buffer (appended when all instructions of the block are processed)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	452 insertionBuffer.init(block.lir());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	453 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	454
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	455 CiValue fromLocation = interval.location();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	456 CiValue toLocation = canonicalSpillOpr(interval);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	457
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	458 assert isRegister(fromLocation) : "from operand must be a register but is: " + fromLocation + " toLocation=" + toLocation + " spillState=" + interval.spillState();
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	459 assert isStackSlot(toLocation) : "to operand must be a stack slot";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	460
4165 a47535c91bf1 Change LIRInsertionBuffer to add instructions _before_ the specified index, instead of _after_. Cleanup the interface and document it. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4142 diff changeset	461 insertionBuffer.append(j + 1, StandardOpcode.MOVE.create(toLocation, fromLocation));
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	462
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	463 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	464 CiStackSlot slot = interval.spillSlot();
4181 319860ae697a Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4169 diff changeset	465 TTY.println("inserting move after definition of interval %d to stack slot %s at opId %d",
319860ae697a Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4169 diff changeset	466 interval.operandNumber, slot, opId);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	467 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	468
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	469 interval = interval.next;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	470 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	471 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	472 } // end of instruction iteration
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	473
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	474 if (insertionBuffer.initialized()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	475 insertionBuffer.finish();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	476 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	477 } // end of block iteration
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	478
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	479 assert interval == Interval.EndMarker : "missed an interval";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	480 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	481
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	482 private static void checkIntervals(Interval interval) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	483 Interval prev = null;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	484 Interval temp = interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	485 while (temp != Interval.EndMarker) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	486 assert temp.spillDefinitionPos() > 0 : "invalid spill definition pos";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	487 if (prev != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	488 assert temp.from() >= prev.from() : "intervals not sorted";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	489 assert temp.spillDefinitionPos() >= prev.spillDefinitionPos() : "when intervals are sorted by from : then they must also be sorted by spillDefinitionPos";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	490 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	491
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	492 assert temp.spillSlot() != null : "interval has no spill slot assigned";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	493 assert temp.spillDefinitionPos() >= temp.from() : "invalid order";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	494 assert temp.spillDefinitionPos() <= temp.from() + 2 : "only intervals defined once at their start-pos can be optimized";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	495
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	496 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	497 TTY.println("interval %d (from %d to %d) must be stored at %d", temp.operandNumber, temp.from(), temp.to(), temp.spillDefinitionPos());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	498 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	499
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	500 prev = temp;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	501 temp = temp.next;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	502 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	503 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	504
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	505 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	506 * Numbers all instructions in all blocks. The numbering follows the {@linkplain ComputeLinearScanOrder linear scan order}.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	507 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	508 void numberInstructions() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	509 // Assign IDs to LIR nodes and build a mapping, lirOps, from ID to LIRInstruction node.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	510 int numBlocks = blockCount();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	511 int numInstructions = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	512 for (int i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	513 numInstructions += blockAt(i).lir().size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	514 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	515
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	516 // initialize with correct length
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	517 opIdToInstructionMap = new LIRInstruction[numInstructions];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	518 opIdToBlockMap = new LIRBlock[numInstructions];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	519
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	520 int opId = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	521 int index = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	522
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	523 for (int i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	524 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	525 block.setFirstLirInstructionId(opId);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	526 List<LIRInstruction> instructions = block.lir();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	527
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	528 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	529 for (int j = 0; j < numInst; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	530 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	531 op.setId(opId);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	532
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	533 opIdToInstructionMap[index] = op;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	534 opIdToBlockMap[index] = block;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	535 assert instructionForId(opId) == op : "must match";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	536
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	537 index++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	538 opId += 2; // numbering of lirOps by two
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	539 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	540 block.setLastLirInstructionId((opId - 2));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	541 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	542 assert index == numInstructions : "must match";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	543 assert (index << 1) == opId : "must match: " + (index << 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	544 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	545
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	546 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	547 * Computes local live sets (i.e. {@link LIRBlock#liveGen} and {@link LIRBlock#liveKill}) separately for each block.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	548 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	549 void computeLocalLiveSets() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	550 int numBlocks = blockCount();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	551 int liveSize = liveSetSize();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	552
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	553 BitMap2D localIntervalInLoop = new BitMap2D(operands.size(), numLoops());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	554
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	555 // iterate all blocks
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	556 for (int i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	557 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	558 final BitMap liveGen = new BitMap(liveSize);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	559 final BitMap liveKill = new BitMap(liveSize);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	560
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	561 List<LIRInstruction> instructions = block.lir();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	562 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	563
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	564 // iterate all instructions of the block. skip the first because it is always a label
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	565 assert !instructions.get(0).hasOperands() : "first operation must always be a label";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	566 for (int j = 1; j < numInst; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	567 final LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	568
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	569 // iterate input operands of instruction
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	570 int n = op.operandCount(LIRInstruction.OperandMode.Input);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	571 for (int k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	572 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Input, k);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	573
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	574 if (isVariable(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	575 int operandNum = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	576 if (!liveKill.get(operandNum)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	577 liveGen.set(operandNum);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	578 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	579 TTY.println(" Setting liveGen for operand %d at instruction %d", operandNum, op.id());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	580 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	581 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	582 if (block.loopIndex() >= 0) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	583 localIntervalInLoop.setBit(operandNum, block.loopIndex());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	584 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	585 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	586
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	587 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	588 verifyInput(block, liveKill, operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	589 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	590 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	591
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	592 n = op.operandCount(LIRInstruction.OperandMode.Alive);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	593 for (int k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	594 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Alive, k);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	595
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	596 if (isVariable(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	597 int operandNum = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	598 if (!liveKill.get(operandNum)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	599 liveGen.set(operandNum);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	600 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	601 TTY.println(" Setting liveGen for operand %d at instruction %d", operandNum, op.id());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	602 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	603 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	604 if (block.loopIndex() >= 0) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	605 localIntervalInLoop.setBit(operandNum, block.loopIndex());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	606 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	607 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	608
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	609 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	610 verifyInput(block, liveKill, operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	611 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	612 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	613
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	614 // Add uses of live locals from interpreter's point of view for proper debug information generation
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	615 LIRDebugInfo info = op.info;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	616 if (info != null) {
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	617 info.forEachState(new ValueProcedure() {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	618 @Override
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	619 public CiValue doValue(CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	620 int operandNum = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	621 if (!liveKill.get(operandNum)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	622 liveGen.set(operandNum);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	623 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	624 TTY.println(" Setting liveGen for LIR opId %d, operand %d because of state for %s", op.id(), operandNum, op);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	625 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	626 }
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	627 return operand;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	628 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	629 });
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	630 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	631
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	632 // iterate temp operands of instruction
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	633 n = op.operandCount(LIRInstruction.OperandMode.Temp);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	634 for (int k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	635 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Temp, k);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	636
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	637 if (isVariable(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	638 int varNum = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	639 liveKill.set(varNum);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	640 if (block.loopIndex() >= 0) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	641 localIntervalInLoop.setBit(varNum, block.loopIndex());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	642 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	643 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	644
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	645 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	646 verifyTemp(liveKill, operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	647 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	648 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	649
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	650 // iterate output operands of instruction
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	651 n = op.operandCount(LIRInstruction.OperandMode.Output);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	652 for (int k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	653 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Output, k);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	654
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	655 if (isVariable(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	656 int varNum = operandNumber(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	657 liveKill.set(varNum);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	658 if (block.loopIndex() >= 0) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	659 localIntervalInLoop.setBit(varNum, block.loopIndex());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	660 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	661 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	662
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	663 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	664 // fixed intervals are never live at block boundaries, so
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	665 // they need not be processed in live sets
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	666 // process them only in debug mode so that this can be checked
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	667 verifyTemp(liveKill, operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	668 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	669 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	670 } // end of instruction iteration
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	671
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	672 block.liveGen = liveGen;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	673 block.liveKill = liveKill;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	674 block.liveIn = new BitMap(liveSize);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	675 block.liveOut = new BitMap(liveSize);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	676
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	677 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	678 TTY.println("liveGen B%d %s", block.blockID(), block.liveGen);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	679 TTY.println("liveKill B%d %s", block.blockID(), block.liveKill);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	680 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	681 } // end of block iteration
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	682
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	683 intervalInLoop = localIntervalInLoop;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	684 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	685
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	686 private void verifyTemp(BitMap liveKill, CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	687 // fixed intervals are never live at block boundaries, so
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	688 // they need not be processed in live sets
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	689 // process them only in debug mode so that this can be checked
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	690 if (isRegister(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	691 if (isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	692 liveKill.set(operandNumber(operand));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	693 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	694 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	695 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	696
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	697 private void verifyInput(LIRBlock block, BitMap liveKill, CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	698 // fixed intervals are never live at block boundaries, so
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	699 // they need not be processed in live sets.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	700 // this is checked by these assertions to be sure about it.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	701 // the entry block may have incoming
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	702 // values in registers, which is ok.
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	703 if (isRegister(operand) && block != ir.startBlock()) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	704 if (isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	705 assert liveKill.get(operandNumber(operand)) : "using fixed register that is not defined in this block";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	706 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	707 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	708 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	709
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	710 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	711 * Performs a backward dataflow analysis to compute global live sets (i.e. {@link LIRBlock#liveIn} and
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	712 * {@link LIRBlock#liveOut}) for each block.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	713 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	714 void computeGlobalLiveSets() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	715 int numBlocks = blockCount();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	716 boolean changeOccurred;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	717 boolean changeOccurredInBlock;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	718 int iterationCount = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	719 BitMap liveOut = new BitMap(liveSetSize()); // scratch set for calculations
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	720
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	721 // Perform a backward dataflow analysis to compute liveOut and liveIn for each block.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	722 // The loop is executed until a fixpoint is reached (no changes in an iteration)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	723 do {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	724 changeOccurred = false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	725
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	726 // iterate all blocks in reverse order
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	727 for (int i = numBlocks - 1; i >= 0; i--) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	728 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	729
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	730 changeOccurredInBlock = false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	731
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	732 // liveOut(block) is the union of liveIn(sux), for successors sux of block
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	733 int n = block.numberOfSux();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	734 if (n > 0) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	735 // block has successors
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	736 if (n > 0) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	737 liveOut.setFrom(block.suxAt(0).liveIn);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	738 for (int j = 1; j < n; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	739 liveOut.setUnion(block.suxAt(j).liveIn);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	740 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	741 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	742 liveOut.clearAll();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	743 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	744
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	745 if (!block.liveOut.isSame(liveOut)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	746 // A change occurred. Swap the old and new live out sets to avoid copying.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	747 BitMap temp = block.liveOut;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	748 block.liveOut = liveOut;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	749 liveOut = temp;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	750
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	751 changeOccurred = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	752 changeOccurredInBlock = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	753 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	754 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	755
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	756 if (iterationCount == 0 \|\| changeOccurredInBlock) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	757 // liveIn(block) is the union of liveGen(block) with (liveOut(block) & !liveKill(block))
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	758 // note: liveIn has to be computed only in first iteration or if liveOut has changed!
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	759 BitMap liveIn = block.liveIn;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	760 liveIn.setFrom(block.liveOut);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	761 liveIn.setDifference(block.liveKill);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	762 liveIn.setUnion(block.liveGen);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	763 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	764
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	765 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	766 traceLiveness(changeOccurredInBlock, iterationCount, block);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	767 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	768 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	769 iterationCount++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	770
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	771 if (changeOccurred && iterationCount > 50) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	772 throw new CiBailout("too many iterations in computeGlobalLiveSets");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	773 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	774 } while (changeOccurred);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	775
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	776 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	777 verifyLiveness(numBlocks);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	778 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	779
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	780 // check that the liveIn set of the first block is empty
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	781 LIRBlock startBlock = ir.startBlock();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	782 BitMap liveInArgs = new BitMap(startBlock.liveIn.size());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	783 if (!startBlock.liveIn.isSame(liveInArgs)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	784 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	785 reportFailure(numBlocks);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	786 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	787
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	788 TTY.println("preds=" + startBlock.getPredecessors().size() + ", succs=" + startBlock.getSuccessors().size());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	789 TTY.println("startBlock-ID: " + startBlock.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	790
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	791 // bailout of if this occurs in product mode.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	792 throw new CiBailout("liveIn set of first block must be empty");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	793 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	794 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	795
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	796 private void reportFailure(int numBlocks) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	797 TTY.println(compilation.method.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	798 TTY.println("Error: liveIn set of first block must be empty (when this fails, variables are used before they are defined)");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	799 TTY.print("affected registers:");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	800 TTY.println(ir.startBlock().liveIn.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	801
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	802 // print some additional information to simplify debugging
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	803 for (int operandNum = 0; operandNum < ir.startBlock().liveIn.size(); operandNum++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	804 if (ir.startBlock().liveIn.get(operandNum)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	805 CiValue operand = operands.operandFor(operandNum);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	806 ValueNode instr = isVariable(operand) ? gen.operands.instructionForResult(((CiVariable) operand)) : null;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	807 TTY.println(" var %d (HIR instruction %s); operand=%s", operandNum, instr == null ? " " : instr.toString(), operand.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	808
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	809 if (instr instanceof PhiNode) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	810 PhiNode phi = (PhiNode) instr;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	811 TTY.println("phi block begin: " + phi.merge());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	812 TTY.println("pred count on blockbegin: " + phi.merge().phiPredecessorCount());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	813 TTY.println("phi values: " + phi.valueCount());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	814 TTY.println("phi block preds:");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	815 for (EndNode n : phi.merge().cfgPredecessors()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	816 TTY.println(n.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	817 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	818 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	819
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	820 for (int j = 0; j < numBlocks; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	821 LIRBlock block = blockAt(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	822 if (block.liveGen.get(operandNum)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	823 TTY.println(" used in block B%d", block.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	824 for (LIRInstruction ins : block.lir()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	825 TTY.println(ins.id() + ": " + ins.result() + " " + ins.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	826 LIRDebugInfo info = ins.info;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	827 if (info != null) {
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	828 info.forEachState(new ValueProcedure() {
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	829 public CiValue doValue(CiValue liveStateOperand) {
bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	830 TTY.println(" operand=" + liveStateOperand);
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	831 return liveStateOperand;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	832 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	833 });
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	834 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	835 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	836 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	837 if (block.liveKill.get(operandNum)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	838 TTY.println(" defined in block B%d", block.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	839 for (LIRInstruction ins : block.lir()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	840 TTY.println(ins.id() + ": " + ins.result() + " " + ins.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	841 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	842 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	843 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	844 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	845 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	846 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	847
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	848 private void verifyLiveness(int numBlocks) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	849 // check that fixed intervals are not live at block boundaries
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	850 // (live set must be empty at fixed intervals)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	851 for (int i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	852 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	853 for (int j = 0; j <= operands.maxRegisterNumber(); j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	854 assert !block.liveIn.get(j) : "liveIn set of fixed register must be empty";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	855 assert !block.liveOut.get(j) : "liveOut set of fixed register must be empty";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	856 assert !block.liveGen.get(j) : "liveGen set of fixed register must be empty";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	857 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	858 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	859 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	860
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	861 private static void traceLiveness(boolean changeOccurredInBlock, int iterationCount, LIRBlock block) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	862 char c = iterationCount == 0 \|\| changeOccurredInBlock ? '*' : ' ';
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	863 TTY.print("(%d) liveIn%c B%d ", iterationCount, c, block.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	864 TTY.println(block.liveIn.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	865 TTY.print("(%d) liveOut%c B%d ", iterationCount, c, block.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	866 TTY.println(block.liveOut.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	867 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	868
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	869 void addUse(CiValue operand, int from, int to, RegisterPriority registerPriority, CiKind kind) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	870 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	871 return;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	872 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	873 if (GraalOptions.TraceLinearScanLevel >= 2 && kind == null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	874 TTY.println(" use %s from %d to %d (%s)", operand, from, to, registerPriority.name());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	875 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	876
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	877 Interval interval = intervalFor(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	878 if (interval == null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	879 interval = createInterval(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	880 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	881
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	882 if (kind != CiKind.Illegal) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	883 interval.setKind(kind);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	884 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	885
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	886 if (isVariable(operand) && gen.operands.mustStayInMemory((CiVariable) operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	887 interval.addRange(from, maxOpId());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	888 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	889 interval.addRange(from, to);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	890 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	891
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	892 // Register use position at even instruction id.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	893 interval.addUsePos(to & ~1, registerPriority);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	894 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	895
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	896 void addTemp(CiValue operand, int tempPos, RegisterPriority registerPriority, CiKind kind) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	897 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	898 return;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	899 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	900 Interval interval = intervalFor(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	901 if (interval == null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	902 interval = createInterval(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	903 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	904
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	905 if (kind != CiKind.Illegal) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	906 interval.setKind(kind);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	907 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	908
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	909 interval.addRange(tempPos, tempPos + 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	910 interval.addUsePos(tempPos, registerPriority);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	911 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	912
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	913 boolean isProcessed(CiValue operand) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	914 return !isRegister(operand) \|\| attributes(asRegister(operand)).isAllocatable;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	915 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	916
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	917 void addDef(CiValue operand, int defPos, RegisterPriority registerPriority, CiKind kind) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	918 if (!isProcessed(operand)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	919 return;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	920 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	921 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	922 TTY.println(" def %s defPos %d (%s)", operand, defPos, registerPriority.name());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	923 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	924 Interval interval = intervalFor(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	925 if (interval != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	926
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	927 if (kind != CiKind.Illegal) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	928 interval.setKind(kind);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	929 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	930
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	931 Range r = interval.first();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	932 if (r.from <= defPos) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	933 // Update the starting point (when a range is first created for a use, its
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	934 // start is the beginning of the current block until a def is encountered.)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	935 r.from = defPos;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	936 interval.addUsePos(defPos, registerPriority);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	937
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	938 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	939 // Dead value - make vacuous interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	940 // also add register priority for dead intervals
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	941 interval.addRange(defPos, defPos + 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	942 interval.addUsePos(defPos, registerPriority);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	943 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	944 TTY.println("Warning: def of operand %s at %d occurs without use", operand, defPos);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	945 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	946 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	947
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	948 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	949 // Dead value - make vacuous interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	950 // also add register priority for dead intervals
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	951 interval = createInterval(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	952 if (kind != CiKind.Illegal) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	953 interval.setKind(kind);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	954 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	955
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	956 interval.addRange(defPos, defPos + 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	957 interval.addUsePos(defPos, registerPriority);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	958 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	959 TTY.println("Warning: dead value %s at %d in live intervals", operand, defPos);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	960 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	961 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	962
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	963 changeSpillDefinitionPos(interval, defPos);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	964 if (registerPriority == RegisterPriority.None && interval.spillState().ordinal() <= SpillState.StartInMemory.ordinal()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	965 // detection of method-parameters and roundfp-results
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	966 // TODO: move this directly to position where use-kind is computed
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	967 interval.setSpillState(SpillState.StartInMemory);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	968 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	969 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	970
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	971 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	972 * Determines the register priority for an instruction's output/result operand.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	973 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	974 RegisterPriority registerPriorityOfOutputOperand(LIRInstruction op, CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	975 if (op.code == StandardOpcode.MOVE) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	976 CiValue res = op.result();
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	977 boolean resultInMemory = isVariable(res) && operands.mustStartInMemory((CiVariable) res);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	978
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	979 if (resultInMemory) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	980 // Begin of an interval with mustStartInMemory set.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	981 // This interval will always get a stack slot first, so return noUse.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	982 return RegisterPriority.None;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	983
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	984 } else if (isStackSlot(op.input(0))) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	985 // method argument (condition must be equal to handleMethodArguments)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	986 return RegisterPriority.None;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	987
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	988 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	989 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	990
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	991 if (isVariable(operand) && operands.mustStartInMemory((CiVariable) operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	992 // result is a stack-slot, so prevent immediate reloading
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	993 return RegisterPriority.None;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	994 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	995
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	996 // all other operands require a register
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	997 return RegisterPriority.MustHaveRegister;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	998 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	999
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1000 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1001 * Determines the priority which with an instruction's input operand will be allocated a register.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1002 */
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1003 RegisterPriority registerPriorityOfInputOperand(LIRInstruction op, int operandIndex) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1004 if (op.code == StandardOpcode.MOVE) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1005 CiValue res = op.result();
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1006 boolean resultInMemory = isVariable(res) && operands.mustStartInMemory((CiVariable) res);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1007
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1008 if (resultInMemory) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1009 // Move to an interval with mustStartInMemory set.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1010 // To avoid moves from stack to stack (not allowed) force the input operand to a register
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1011 return RegisterPriority.MustHaveRegister;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1012
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1013 } else if (isVariableOrRegister(op.input(0)) && isVariableOrRegister(op.result())) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1014 // The input operand is not forced to a register (moves from stack to register are allowed),
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1015 // but it is faster if the input operand is in a register
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1016 return RegisterPriority.ShouldHaveRegister;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1017 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1018 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1019
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1020 if (op.inputCanBeMemory(operandIndex)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1021 return RegisterPriority.ShouldHaveRegister;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1022 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1023 // all other operands require a register
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1024 return RegisterPriority.MustHaveRegister;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1025 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1026
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1027 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1028 * Optimizes moves related to incoming stack based arguments.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1029 * The interval for the destination of such moves is assigned
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1030 * the stack slot (which is in the caller's frame) as its
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1031 * spill slot.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1032 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1033 void handleMethodArguments(LIRInstruction op) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1034 if (op.code == StandardOpcode.MOVE) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1035 if (isStackSlot(op.input(0))) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1036 CiStackSlot slot = (CiStackSlot) op.input(0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1037 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1038 assert op.id() > 0 : "invalid id";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1039 assert blockForId(op.id()).numberOfPreds() == 0 : "move from stack must be in first block";
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1040 assert isVariable(op.result()) : "result of move must be a variable";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1041
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1042 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1043 TTY.println("found move from stack slot %s to %s", slot, op.result());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1044 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1045 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1046
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1047 Interval interval = intervalFor(op.result());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1048 CiStackSlot copySlot = slot;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1049 if (GraalOptions.CopyPointerStackArguments && slot.kind == CiKind.Object) {
4181 319860ae697a Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4169 diff changeset	1050 copySlot = frameMap.allocateSpillSlot(slot.kind);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1051 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1052 interval.setSpillSlot(copySlot);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1053 interval.assignLocation(copySlot);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1054 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1055 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1056 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1057
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1058 void addRegisterHints(LIRInstruction op) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1059 CiValue moveFrom = op.registerHint();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1060 if (moveFrom != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1061 CiValue moveTo = op.result();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1062
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1063 if (isVariableOrRegister(moveTo) && isVariableOrRegister(moveFrom)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1064 Interval from = intervalFor(moveFrom);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1065 Interval to = intervalFor(moveTo);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1066 if (from != null && to != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1067 to.setLocationHint(from);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1068 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1069 TTY.println("operation at opId %d: added hint from interval %d to %d", op.id(), from.operandNumber, to.operandNumber);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1070 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1071 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1072 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1073 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1074 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1075
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1076 void buildIntervals() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1077 intervalsSize = operands.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1078 intervals = new Interval[intervalsSize + INITIAL_SPLIT_INTERVALS_CAPACITY];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1079
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1080 // create a list with all caller-save registers (cpu, fpu, xmm)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1081 RiRegisterConfig registerConfig = compilation.registerConfig;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1082 CiRegister[] callerSaveRegs = registerConfig.getCallerSaveRegisters();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1083
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1084 // iterate all blocks in reverse order
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1085 for (int i = blockCount() - 1; i >= 0; i--) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1086 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1087 List<LIRInstruction> instructions = block.lir();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1088 final int blockFrom = block.firstLirInstructionId();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1089 int blockTo = block.lastLirInstructionId();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1090
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1091 assert blockFrom == instructions.get(0).id();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1092 assert blockTo == instructions.get(instructions.size() - 1).id();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1093
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1094 // Update intervals for operands live at the end of this block;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1095 BitMap live = block.liveOut;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1096 for (int operandNum = live.nextSetBit(0); operandNum >= 0; operandNum = live.nextSetBit(operandNum + 1)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1097 assert live.get(operandNum) : "should not stop here otherwise";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1098 CiValue operand = operands.operandFor(operandNum);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1099 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1100 TTY.println("live in %s to %d", operand, blockTo + 2);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1101 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1102
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1103 addUse(operand, blockFrom, blockTo + 2, RegisterPriority.None, CiKind.Illegal);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1104
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1105 // add special use positions for loop-end blocks when the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1106 // interval is used anywhere inside this loop. It's possible
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1107 // that the block was part of a non-natural loop, so it might
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1108 // have an invalid loop index.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1109 if (block.isLoopEnd() && block.loopIndex() != -1 && isIntervalInLoop(operandNum, block.loopIndex())) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1110 intervalFor(operand).addUsePos(blockTo + 1, RegisterPriority.LiveAtLoopEnd);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1111 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1112 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1113
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1114 // iterate all instructions of the block in reverse order.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1115 // skip the first instruction because it is always a label
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1116 // definitions of intervals are processed before uses
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1117 assert !instructions.get(0).hasOperands() : "first operation must always be a label";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1118 for (int j = instructions.size() - 1; j >= 1; j--) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1119 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1120 final int opId = op.id();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1121
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1122 // add a temp range for each register if operation destroys caller-save registers
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1123 if (op.hasCall()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1124 for (CiRegister r : callerSaveRegs) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1125 if (attributes(r).isAllocatable) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1126 addTemp(r.asValue(), opId, RegisterPriority.None, CiKind.Illegal);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1127 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1128 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1129 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1130 TTY.println("operation destroys all caller-save registers");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1131 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1132 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1133
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1134 // visit definitions (output and temp operands)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1135 int k;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1136 int n;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1137 n = op.operandCount(LIRInstruction.OperandMode.Output);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1138 for (k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1139 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Output, k);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1140 if (isVariableOrRegister(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1141 addDef(operand, opId, registerPriorityOfOutputOperand(op, operand), operand.kind.stackKind());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1142 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1143 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1144
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1145 n = op.operandCount(LIRInstruction.OperandMode.Temp);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1146 for (k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1147 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Temp, k);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1148 if (isVariableOrRegister(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1149 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1150 TTY.println(" temp %s tempPos %d (%s)", operand, opId, RegisterPriority.MustHaveRegister.name());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1151 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1152 addTemp(operand, opId, RegisterPriority.MustHaveRegister, operand.kind.stackKind());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1153 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1154 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1155
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1156 n = op.operandCount(LIRInstruction.OperandMode.Alive);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1157 for (k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1158 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Alive, k);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1159 if (isVariableOrRegister(operand)) {
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1160 addUse(operand, blockFrom, opId + 1, RegisterPriority.MustHaveRegister, operand.kind.stackKind());
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1161 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1162 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1163
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1164 // visit uses (input operands)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1165 n = op.operandCount(LIRInstruction.OperandMode.Input);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1166 for (k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1167 CiValue operand = op.operandAt(LIRInstruction.OperandMode.Input, k);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1168 if (isVariableOrRegister(operand)) {
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1169 RegisterPriority p = registerPriorityOfInputOperand(op, k);
bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1170 addUse(operand, blockFrom, opId, p, operand.kind.stackKind());
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1171 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1172 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1173
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1174 // Add uses of live locals from interpreter's point of view for proper
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1175 // debug information generation
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1176 // Treat these operands as temp values (if the live range is extended
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1177 // to a call site, the value would be in a register at the call otherwise)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1178 LIRDebugInfo info = op.info;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1179 if (info != null) {
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1180 info.forEachState(new ValueProcedure() {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1181 public CiValue doValue(CiValue operand) {
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1182 addUse(operand, blockFrom, (opId + 1), RegisterPriority.None, operand.kind.stackKind());
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1183 return operand;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1184 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1185 });
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1186 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1187
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1188 // special steps for some instructions (especially moves)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1189 handleMethodArguments(op);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1190 addRegisterHints(op);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1191
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1192 } // end of instruction iteration
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1193 } // end of block iteration
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1194
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1195 // add the range [0, 1] to all fixed intervals.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1196 // the register allocator need not handle unhandled fixed intervals
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1197 for (Interval interval : intervals) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1198 if (interval != null && isRegister(interval.operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1199 interval.addRange(0, 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1200 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1201 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1202 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1203
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1204 // * Phase 5: actual register allocation
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1205
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1206 private static boolean isSorted(Interval[] intervals) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1207 int from = -1;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1208 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1209 assert interval != null;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1210 assert from <= interval.from();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1211 from = interval.from();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1212 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1213 return true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1214 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1215
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1216 static Interval addToList(Interval first, Interval prev, Interval interval) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1217 Interval newFirst = first;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1218 if (prev != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1219 prev.next = interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1220 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1221 newFirst = interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1222 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1223 return newFirst;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1224 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1225
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1226 Interval.Pair createUnhandledLists(IntervalPredicate isList1, IntervalPredicate isList2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1227 assert isSorted(sortedIntervals) : "interval list is not sorted";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1228
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1229 Interval list1 = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1230 Interval list2 = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1231
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1232 Interval list1Prev = null;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1233 Interval list2Prev = null;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1234 Interval v;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1235
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1236 int n = sortedIntervals.length;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1237 for (int i = 0; i < n; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1238 v = sortedIntervals[i];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1239 if (v == null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1240 continue;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1241 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1242
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1243 if (isList1.apply(v)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1244 list1 = addToList(list1, list1Prev, v);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1245 list1Prev = v;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1246 } else if (isList2 == null \|\| isList2.apply(v)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1247 list2 = addToList(list2, list2Prev, v);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1248 list2Prev = v;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1249 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1250 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1251
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1252 if (list1Prev != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1253 list1Prev.next = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1254 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1255 if (list2Prev != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1256 list2Prev.next = Interval.EndMarker;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1257 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1258
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1259 assert list1Prev == null \|\| list1Prev.next == Interval.EndMarker : "linear list ends not with sentinel";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1260 assert list2Prev == null \|\| list2Prev.next == Interval.EndMarker : "linear list ends not with sentinel";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1261
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1262 return new Interval.Pair(list1, list2);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1263 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1264
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1265 void sortIntervalsBeforeAllocation() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1266 int sortedLen = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1267 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1268 if (interval != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1269 sortedLen++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1270 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1271 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1272
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1273 Interval[] sortedList = new Interval[sortedLen];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1274 int sortedIdx = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1275 int sortedFromMax = -1;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1276
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1277 // special sorting algorithm: the original interval-list is almost sorted,
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1278 // only some intervals are swapped. So this is much faster than a complete QuickSort
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1279 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1280 if (interval != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1281 int from = interval.from();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1282
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1283 if (sortedFromMax <= from) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1284 sortedList[sortedIdx++] = interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1285 sortedFromMax = interval.from();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1286 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1287 // the assumption that the intervals are already sorted failed,
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1288 // so this interval must be sorted in manually
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1289 int j;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1290 for (j = sortedIdx - 1; j >= 0 && from < sortedList[j].from(); j--) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1291 sortedList[j + 1] = sortedList[j];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1292 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1293 sortedList[j + 1] = interval;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1294 sortedIdx++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1295 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1296 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1297 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1298 sortedIntervals = sortedList;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1299 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1300
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1301 void sortIntervalsAfterAllocation() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1302 if (firstDerivedIntervalIndex == -1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1303 // no intervals have been added during allocation, so sorted list is already up to date
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1304 return;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1305 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1306
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1307 Interval[] oldList = sortedIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1308 Interval[] newList = Arrays.copyOfRange(intervals, firstDerivedIntervalIndex, intervalsSize);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1309 int oldLen = oldList.length;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1310 int newLen = newList.length;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1311
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1312 // conventional sort-algorithm for new intervals
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1313 Arrays.sort(newList, INTERVAL_COMPARATOR);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1314
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1315 // merge old and new list (both already sorted) into one combined list
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1316 Interval[] combinedList = new Interval[oldLen + newLen];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1317 int oldIdx = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1318 int newIdx = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1319
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1320 while (oldIdx + newIdx < combinedList.length) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1321 if (newIdx >= newLen \|\| (oldIdx < oldLen && oldList[oldIdx].from() <= newList[newIdx].from())) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1322 combinedList[oldIdx + newIdx] = oldList[oldIdx];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1323 oldIdx++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1324 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1325 combinedList[oldIdx + newIdx] = newList[newIdx];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1326 newIdx++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1327 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1328 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1329
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1330 sortedIntervals = combinedList;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1331 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1332
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1333 private static final Comparator<Interval> INTERVAL_COMPARATOR = new Comparator<Interval>() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1334
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1335 public int compare(Interval a, Interval b) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1336 if (a != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1337 if (b != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1338 return a.from() - b.from();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1339 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1340 return -1;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1341 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1342 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1343 if (b != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1344 return 1;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1345 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1346 return 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1347 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1348 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1349 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1350 };
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1351
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1352 public void allocateRegisters() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1353 Interval precoloredIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1354 Interval notPrecoloredIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1355
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1356 Interval.Pair result = createUnhandledLists(IS_PRECOLORED_INTERVAL, IS_VARIABLE_INTERVAL);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1357 precoloredIntervals = result.first;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1358 notPrecoloredIntervals = result.second;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1359
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1360 // allocate cpu registers
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1361 LinearScanWalker lsw = new LinearScanWalker(this, precoloredIntervals, notPrecoloredIntervals);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1362 lsw.walk();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1363 lsw.finishAllocation();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1364 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1365
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1366 // * Phase 6: resolve data flow
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1367 // (insert moves at edges between blocks if intervals have been split)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1368
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1369 // wrapper for Interval.splitChildAtOpId that performs a bailout in product mode
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1370 // instead of returning null
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1371 Interval splitChildAtOpId(Interval interval, int opId, LIRInstruction.OperandMode mode) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1372 Interval result = interval.getSplitChildAtOpId(opId, mode, this);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1373
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1374 if (result != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1375 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1376 TTY.println("Split child at pos " + opId + " of interval " + interval.toString() + " is " + result.toString());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1377 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1378 return result;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1379 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1380
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1381 throw new CiBailout("LinearScan: interval is null");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1382 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1383
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1384 Interval intervalAtBlockBegin(LIRBlock block, CiValue operand) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1385 assert isVariable(operand) : "register number out of bounds";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1386 assert intervalFor(operand) != null : "no interval found";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1387
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1388 return splitChildAtOpId(intervalFor(operand), block.firstLirInstructionId(), LIRInstruction.OperandMode.Output);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1389 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1390
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1391 Interval intervalAtBlockEnd(LIRBlock block, CiValue operand) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1392 assert isVariable(operand) : "register number out of bounds";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1393 assert intervalFor(operand) != null : "no interval found";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1394
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1395 return splitChildAtOpId(intervalFor(operand), block.lastLirInstructionId() + 1, LIRInstruction.OperandMode.Output);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1396 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1397
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1398 Interval intervalAtOpId(CiValue operand, int opId) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1399 assert isVariable(operand) : "register number out of bounds";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1400 assert intervalFor(operand) != null : "no interval found";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1401
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1402 return splitChildAtOpId(intervalFor(operand), opId, LIRInstruction.OperandMode.Input);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1403 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1404
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1405 void resolveCollectMappings(LIRBlock fromBlock, LIRBlock toBlock, MoveResolver moveResolver) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1406 assert moveResolver.checkEmpty();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1407
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1408 int numOperands = operands.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1409 BitMap liveAtEdge = toBlock.liveIn;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1410
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1411 // visit all variables for which the liveAtEdge bit is set
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1412 for (int operandNum = liveAtEdge.nextSetBit(0); operandNum >= 0; operandNum = liveAtEdge.nextSetBit(operandNum + 1)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1413 assert operandNum < numOperands : "live information set for not exisiting interval";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1414 assert fromBlock.liveOut.get(operandNum) && toBlock.liveIn.get(operandNum) : "interval not live at this edge";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1415
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1416 CiValue liveOperand = operands.operandFor(operandNum);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1417 Interval fromInterval = intervalAtBlockEnd(fromBlock, liveOperand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1418 Interval toInterval = intervalAtBlockBegin(toBlock, liveOperand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1419
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1420 if (fromInterval != toInterval && (fromInterval.location() != toInterval.location())) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1421 // need to insert move instruction
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1422 moveResolver.addMapping(fromInterval, toInterval);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1423 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1424 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1425 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1426
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1427 static void resolveFindInsertPos(LIRBlock fromBlock, LIRBlock toBlock, MoveResolver moveResolver) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1428 if (fromBlock.numberOfSux() <= 1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1429 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1430 TTY.println("inserting moves at end of fromBlock B%d", fromBlock.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1431 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1432
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1433 List<LIRInstruction> instructions = fromBlock.lir();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1434 LIRInstruction instr = instructions.get(instructions.size() - 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1435 if (instr instanceof LIRBranch) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1436 // insert moves before branch
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1437 assert instr.code == StandardOpcode.JUMP : "block does not end with an unconditional jump";
4165 a47535c91bf1 Change LIRInsertionBuffer to add instructions _before_ the specified index, instead of _after_. Cleanup the interface and document it. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4142 diff changeset	1438 moveResolver.setInsertPosition(fromBlock.lir(), instructions.size() - 1);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1439 } else {
4165 a47535c91bf1 Change LIRInsertionBuffer to add instructions _before_ the specified index, instead of _after_. Cleanup the interface and document it. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4142 diff changeset	1440 moveResolver.setInsertPosition(fromBlock.lir(), instructions.size());
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1441 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1442
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1443 } else {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1444 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1445 TTY.println("inserting moves at beginning of toBlock B%d", toBlock.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1446 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1447
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1448 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1449 assert fromBlock.lir().get(0).code == StandardOpcode.LABEL : "block does not start with a label";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1450
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1451 // because the number of predecessor edges matches the number of
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1452 // successor edges, blocks which are reached by switch statements
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1453 // may have be more than one predecessor but it will be guaranteed
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1454 // that all predecessors will be the same.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1455 for (int i = 0; i < toBlock.numberOfPreds(); i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1456 assert fromBlock == toBlock.predAt(i) : "all critical edges must be broken";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1457 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1458 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1459
4165 a47535c91bf1 Change LIRInsertionBuffer to add instructions _before_ the specified index, instead of _after_. Cleanup the interface and document it. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4142 diff changeset	1460 moveResolver.setInsertPosition(toBlock.lir(), 1);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1461 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1462 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1463
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1464 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1465 * Inserts necessary moves (spilling or reloading) at edges between blocks for intervals that
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1466 * have been split.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1467 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1468 void resolveDataFlow() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1469 int numBlocks = blockCount();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1470 MoveResolver moveResolver = new MoveResolver(this);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1471 BitMap blockCompleted = new BitMap(numBlocks);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1472 BitMap alreadyResolved = new BitMap(numBlocks);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1473
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1474 int i;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1475 for (i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1476 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1477
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1478 // check if block has only one predecessor and only one successor
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1479 if (block.numberOfPreds() == 1 && block.numberOfSux() == 1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1480 List<LIRInstruction> instructions = block.lir();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1481 assert instructions.get(0).code == StandardOpcode.LABEL : "block must start with label";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1482 assert instructions.get(instructions.size() - 1).code == StandardOpcode.JUMP : "block with successor must end with unconditional jump";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1483
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1484 // check if block is empty (only label and branch)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1485 if (instructions.size() == 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1486 LIRBlock pred = block.predAt(0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1487 LIRBlock sux = block.suxAt(0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1488
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1489 // prevent optimization of two consecutive blocks
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1490 if (!blockCompleted.get(pred.linearScanNumber()) && !blockCompleted.get(sux.linearScanNumber())) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1491 if (GraalOptions.TraceLinearScanLevel >= 3) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1492 TTY.println(" optimizing empty block B%d (pred: B%d, sux: B%d)", block.blockID(), pred.blockID(), sux.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1493 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1494 blockCompleted.set(block.linearScanNumber());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1495
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1496 // directly resolve between pred and sux (without looking at the empty block between)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1497 resolveCollectMappings(pred, sux, moveResolver);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1498 if (moveResolver.hasMappings()) {
4165 a47535c91bf1 Change LIRInsertionBuffer to add instructions _before_ the specified index, instead of _after_. Cleanup the interface and document it. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4142 diff changeset	1499 moveResolver.setInsertPosition(block.lir(), 1);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1500 moveResolver.resolveAndAppendMoves();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1501 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1502 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1503 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1504 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1505 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1506
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1507 for (i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1508 if (!blockCompleted.get(i)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1509 LIRBlock fromBlock = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1510 alreadyResolved.setFrom(blockCompleted);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1511
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1512 int numSux = fromBlock.numberOfSux();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1513 for (int s = 0; s < numSux; s++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1514 LIRBlock toBlock = fromBlock.suxAt(s);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1515
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1516 // check for duplicate edges between the same blocks (can happen with switch blocks)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1517 if (!alreadyResolved.get(toBlock.linearScanNumber())) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1518 if (GraalOptions.TraceLinearScanLevel >= 3) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1519 TTY.println(" processing edge between B%d and B%d", fromBlock.blockID(), toBlock.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1520 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1521 alreadyResolved.set(toBlock.linearScanNumber());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1522
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1523 // collect all intervals that have been split between fromBlock and toBlock
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1524 resolveCollectMappings(fromBlock, toBlock, moveResolver);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1525 if (moveResolver.hasMappings()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1526 resolveFindInsertPos(fromBlock, toBlock, moveResolver);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1527 moveResolver.resolveAndAppendMoves();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1528 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1529 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1530 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1531 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1532 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1533 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1534
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1535 // * Phase 7: assign register numbers back to LIR
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1536 // (includes computation of debug information and oop maps)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1537
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1538 boolean verifyAssignedLocation(Interval interval, CiValue location) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1539 CiKind kind = interval.kind();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1540
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1541 assert isRegister(location) \|\| isStackSlot(location);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1542
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1543 if (isRegister(location)) {
9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1544 CiRegister reg = asRegister(location);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1545
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1546 // register
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1547 switch (kind) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1548 case Byte:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1549 case Char:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1550 case Short:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1551 case Jsr:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1552 case Object:
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1553 case Int: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1554 assert reg.isCpu() : "not cpu register";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1555 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1556 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1557
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1558 case Long: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1559 assert reg.isCpu() : "not cpu register";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1560 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1561 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1562
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1563 case Float: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1564 assert !compilation.compiler.target.arch.isX86() \|\| reg.isFpu() : "not xmm register: " + reg;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1565 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1566 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1567
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1568 case Double: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1569 assert !compilation.compiler.target.arch.isX86() \|\| reg.isFpu() : "not xmm register: " + reg;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1570 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1571 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1572
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1573 default: {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1574 throw Util.shouldNotReachHere();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1575 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1576 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1577 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1578 return true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1579 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1580
4142 bc8527f3071c Adjust code base to new level of warnings. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: 3733 diff changeset	1581 static CiStackSlot canonicalSpillOpr(Interval interval) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1582 assert interval.spillSlot() != null : "canonical spill slot not set";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1583 return interval.spillSlot();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1584 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1585
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1586 /**
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1587 * Assigns the allocated location for an LIR instruction operand back into the instruction.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1588 *
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1589 * @param operand an LIR instruction operand
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1590 * @param opId the id of the LIR instruction using {@code operand}
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1591 * @param mode the usage mode for {@code operand} by the instruction
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1592 * @return the location assigned for the operand
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1593 */
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1594 private CiValue colorLirOperand(CiVariable operand, int opId, OperandMode mode) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1595 Interval interval = intervalFor(operand);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1596 assert interval != null : "interval must exist";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1597
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1598 if (opId != -1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1599 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1600 LIRBlock block = blockForId(opId);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1601 if (block.numberOfSux() <= 1 && opId == block.lastLirInstructionId()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1602 // check if spill moves could have been appended at the end of this block, but
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1603 // before the branch instruction. So the split child information for this branch would
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1604 // be incorrect.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1605 LIRInstruction instr = block.lir().get(block.lir().size() - 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1606 if (instr instanceof LIRBranch) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1607 LIRBranch branch = (LIRBranch) instr;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1608 if (block.liveOut.get(operandNumber(operand))) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1609 assert branch.code == StandardOpcode.JUMP : "block does not end with an unconditional jump";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1610 assert false : "can't get split child for the last branch of a block because the information would be incorrect (moves are inserted before the branch in resolveDataFlow)";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1611 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1612 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1613 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1614 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1615
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1616 // operands are not changed when an interval is split during allocation,
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1617 // so search the right interval here
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1618 interval = splitChildAtOpId(interval, opId, mode);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1619 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1620
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1621 return interval.location();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1622 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1623
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1624 IntervalWalker initComputeOopMaps() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1625 // setup lists of potential oops for walking
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1626 Interval oopIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1627 Interval nonOopIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1628
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1629 oopIntervals = createUnhandledLists(IS_OOP_INTERVAL, null).first;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1630
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1631 // intervals that have no oops inside need not to be processed.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1632 // to ensure a walking until the last instruction id, add a dummy interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1633 // with a high operation id
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1634 nonOopIntervals = new Interval(context, CiValue.IllegalValue, -1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1635 nonOopIntervals.addRange(Integer.MAX_VALUE - 2, Integer.MAX_VALUE - 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1636
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1637 return new IntervalWalker(this, oopIntervals, nonOopIntervals);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1638 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1639
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1640 void computeOopMap(IntervalWalker iw, LIRInstruction op, CiBitMap registerRefMap, CiBitMap frameRefMap) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1641 if (GraalOptions.TraceLinearScanLevel >= 3) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1642 TTY.println("creating oop map at opId %d", op.id());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1643 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1644
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1645 // walk before the current operation . intervals that start at
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1646 // the operation (i.e. output operands of the operation) are not
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1647 // included in the oop map
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1648 iw.walkBefore(op.id());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1649
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1650 // Iterate through active intervals
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1651 for (Interval interval = iw.activeLists.get(RegisterBinding.Fixed); interval != Interval.EndMarker; interval = interval.next) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1652 CiValue operand = interval.operand;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1653
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1654 assert interval.currentFrom() <= op.id() && op.id() <= interval.currentTo() : "interval should not be active otherwise";
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1655 assert isVariable(interval.operand) : "fixed interval found";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1656
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1657 // Check if this range covers the instruction. Intervals that
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1658 // start or end at the current operation are not included in the
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1659 // oop map, except in the case of patching moves. For patching
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1660 // moves, any intervals which end at this instruction are included
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1661 // in the oop map since we may safepoint while doing the patch
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1662 // before we've consumed the inputs.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1663 if (op.id() < interval.currentTo()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1664 // caller-save registers must not be included into oop-maps at calls
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1665 assert !op.hasCall() \|\| !isRegister(operand) \|\| !isCallerSave(operand) : "interval is in a caller-save register at a call . register will be overwritten";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1666
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1667 frameMap.setReference(interval.location(), registerRefMap, frameRefMap);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1668
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1669 // Spill optimization: when the stack value is guaranteed to be always correct,
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1670 // then it must be added to the oop map even if the interval is currently in a register
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1671 if (interval.alwaysInMemory() && op.id() > interval.spillDefinitionPos() && !interval.location().equals(interval.spillSlot())) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1672 assert interval.spillDefinitionPos() > 0 : "position not set correctly";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1673 assert interval.spillSlot() != null : "no spill slot assigned";
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1674 assert !isRegister(interval.operand) : "interval is on stack : so stack slot is registered twice";
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1675 frameMap.setReference(interval.spillSlot(), registerRefMap, frameRefMap);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1676 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1677 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1678 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1679 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1680
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1681 private boolean isCallerSave(CiValue operand) {
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1682 return attributes(asRegister(operand)).isCallerSave;
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1683 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1684
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1685
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1686 private void computeDebugInfo(IntervalWalker iw, LIRInstruction op) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1687 assert iw != null : "interval walker needed for debug information";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1688 computeDebugInfo(iw, op, op.info);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1689
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1690 if (op instanceof LIRXirInstruction) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1691 LIRXirInstruction xir = (LIRXirInstruction) op;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1692 if (xir.infoAfter != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1693 computeDebugInfo(iw, op, xir.infoAfter);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1694 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1695 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1696 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1697
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1698
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1699 private void computeDebugInfo(IntervalWalker iw, final LIRInstruction op, LIRDebugInfo info) {
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1700 CiBitMap registerRefMap = op.hasCall() ? null : frameMap.initRegisterRefMap();
f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1701 CiBitMap frameRefMap = frameMap.initFrameRefMap();
f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1702 computeOopMap(iw, op, registerRefMap, frameRefMap);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1703
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1704 info.forEachState(new ValueProcedure() {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1705 @Override
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1706 public CiValue doValue(CiValue operand) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1707 int tempOpId = op.id();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1708 OperandMode mode = OperandMode.Input;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1709 LIRBlock block = blockForId(tempOpId);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1710 if (block.numberOfSux() == 1 && tempOpId == block.lastLirInstructionId()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1711 // generating debug information for the last instruction of a block.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1712 // if this instruction is a branch, spill moves are inserted before this branch
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1713 // and so the wrong operand would be returned (spill moves at block boundaries are not
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1714 // considered in the live ranges of intervals)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1715 // Solution: use the first opId of the branch target block instead.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1716 final LIRInstruction instr = block.lir().get(block.lir().size() - 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1717 if (instr instanceof LIRBranch) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1718 if (block.liveOut.get(operandNumber(operand))) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1719 tempOpId = block.suxAt(0).firstLirInstructionId();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1720 mode = OperandMode.Output;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1721 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1722 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1723 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1724
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1725 // Get current location of operand
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1726 // The operand must be live because debug information is considered when building the intervals
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1727 // if the interval is not live, colorLirOperand will cause an assert on failure
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1728 CiValue result = colorLirOperand((CiVariable) operand, tempOpId, mode);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1729 assert !hasCall(tempOpId) \|\| isStackSlot(result) \|\| !isCallerSave(result) : "cannot have caller-save register operands at calls";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1730 return result;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1731 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1732 });
4169 f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1733
f5328dda9714 Initial commit of SSA-based spill-all register assignment Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4165 diff changeset	1734 info.finish(registerRefMap, frameRefMap, frameMap);
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1735 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1736
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1737 private void assignLocations(List<LIRInstruction> instructions, IntervalWalker iw) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1738 int numInst = instructions.size();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1739 boolean hasDead = false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1740
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1741 for (int j = 0; j < numInst; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1742 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1743 if (op == null) { // this can happen when spill-moves are removed in eliminateSpillMoves
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1744 hasDead = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1745 continue;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1746 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1747
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1748 // iterate all modes of the visitor and process all virtual operands
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1749 for (LIRInstruction.OperandMode mode : LIRInstruction.OPERAND_MODES) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1750 int n = op.operandCount(mode);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1751 for (int k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1752 CiValue operand = op.operandAt(mode, k);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1753 if (isVariable(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1754 op.setOperandAt(mode, k, colorLirOperand((CiVariable) operand, op.id(), mode));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1755 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1756 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1757 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1758
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1759 if (op.info != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1760 // compute reference map and debug information
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1761 computeDebugInfo(iw, op);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1762 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1763
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1764 // remove useless moves
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1765 if (op.code == StandardOpcode.MOVE) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1766 CiValue src = op.input(0);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1767 CiValue dst = op.result();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1768 if (dst == src \|\| src.equals(dst)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1769 // TODO: what about o.f = o.f and exceptions?
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1770 instructions.set(j, null);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1771 hasDead = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1772 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1773 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1774 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1775
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1776 if (hasDead) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1777 // iterate all instructions of the block and remove all null-values.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1778 int insertPoint = 0;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1779 for (int j = 0; j < numInst; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1780 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1781 if (op != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1782 if (insertPoint != j) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1783 instructions.set(insertPoint, op);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1784 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1785 insertPoint++;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1786 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1787 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1788 Util.truncate(instructions, insertPoint);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1789 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1790 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1791
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1792 private void assignLocations() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1793 IntervalWalker iw = initComputeOopMaps();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1794 for (LIRBlock block : sortedBlocks) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1795 assignLocations(block.lir(), iw);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1796 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1797 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1798
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1799 public void allocate() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1800 context.timers.startScope("Lifetime Analysis");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1801 try {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1802 numberInstructions();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1803
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1804 printLir("Before register allocation", true);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1805
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1806 computeLocalLiveSets();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1807 computeGlobalLiveSets();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1808
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1809 buildIntervals();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1810 sortIntervalsBeforeAllocation();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1811 } finally {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1812 context.timers.endScope();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1813 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1814
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1815 context.timers.startScope("Linear Scan");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1816 try {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1817 printIntervals("Before register allocation");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1818
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1819 allocateRegisters();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1820
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1821 } finally {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1822 context.timers.endScope();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1823 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1824
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1825 context.timers.startScope("Resolution");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1826 try {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1827 resolveDataFlow();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1828 } finally {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1829 context.timers.endScope();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1830 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1831
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1832 context.timers.startScope("Create Debug Info");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1833 try {
4181 319860ae697a Simplify FrameMap: make offsets of spill slots and outgoing parameters independent so that they can be allocated at the same time, eliminating the separate phases. This makes the separate StackBlock unnecesary. Change CiStackSlot to use byte offsets instead of spill slot index. This makes CiTarget.spillSlotSize unnecessary. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4169 diff changeset	1834 frameMap.finish();
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1835
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1836 printIntervals("After register allocation");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1837 printLir("After register allocation", true);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1838
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1839 sortIntervalsAfterAllocation();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1840
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1841 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1842 verify();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1843 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1844
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1845 eliminateSpillMoves();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1846 assignLocations();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1847
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1848 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1849 verifyIntervals();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1850 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1851 } finally {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1852 context.timers.endScope();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1853 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1854
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1855 context.timers.startScope("Control Flow Optimizations");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1856 try {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1857 printLir("After register number assignment", true);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1858 EdgeMoveOptimizer.optimize(ir.linearScanOrder());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1859 ControlFlowOptimizer.optimize(ir, context);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1860 printLir("After control flow optimization", false);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1861 } finally {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1862 context.timers.endScope();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1863 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1864 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1865
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1866 void printIntervals(String label) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1867 if (GraalOptions.TraceLinearScanLevel >= 1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1868 int i;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1869 TTY.println();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1870 TTY.println(label);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1871
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1872 for (Interval interval : intervals) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1873 if (interval != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1874 TTY.out().println(interval.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1875 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1876 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1877
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1878 TTY.println();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1879 TTY.println("--- Basic Blocks ---");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1880 for (i = 0; i < blockCount(); i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1881 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1882 TTY.print("B%d [%d, %d, %d, %d] ", block.blockID(), block.firstLirInstructionId(), block.lastLirInstructionId(), block.loopIndex(), block.loopDepth());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1883 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1884 TTY.println();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1885 TTY.println();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1886 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1887
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1888 if (context.isObserved()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1889 context.observable.fireCompilationEvent(label, compilation, this, Arrays.copyOf(intervals, intervalsSize));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1890 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1891 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1892
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1893 void printLir(String label, boolean hirValid) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1894 if (GraalOptions.TraceLinearScanLevel >= 1 && !TTY.isSuppressed()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1895 TTY.println();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1896 TTY.println(label);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1897 LIR.printLIR(ir.linearScanOrder());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1898 TTY.println();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1899 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1900
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1901 if (context.isObserved()) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1902 context.observable.fireCompilationEvent(label, compilation, hirValid ? compilation.graph : null, compilation.lir());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1903 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1904 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1905
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1906 boolean verify() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1907 // (check that all intervals have a correct register and that no registers are overwritten)
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1908 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1909 TTY.println(" verifying intervals *");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1910 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1911 verifyIntervals();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1912
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1913 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1914 TTY.println(" verifying that no oops are in fixed intervals *");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1915 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1916 //verifyNoOopsInFixedIntervals();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1917
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1918 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1919 TTY.println(" verifying that unpinned constants are not alive across block boundaries");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1920 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1921 verifyConstants();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1922
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1923 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1924 TTY.println(" verifying register allocation *");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1925 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1926 verifyRegisters();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1927
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1928 if (GraalOptions.TraceLinearScanLevel >= 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1929 TTY.println(" no errors found *");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1930 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1931
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1932 return true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1933 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1934
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1935 private void verifyRegisters() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1936 RegisterVerifier verifier = new RegisterVerifier(this);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1937 verifier.verify(blockAt(0));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1938 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1939
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1940 void verifyIntervals() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1941 int len = intervalsSize;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1942
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1943 for (int i = 0; i < len; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1944 Interval i1 = intervals[i];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1945 if (i1 == null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1946 continue;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1947 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1948
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1949 i1.checkSplitChildren();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1950
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1951 if (i1.operandNumber != i) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1952 TTY.println("Interval %d is on position %d in list", i1.operandNumber, i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1953 TTY.println(i1.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1954 throw new CiBailout("");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1955 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1956
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	1957 if (isVariable(i1.operand) && i1.kind() == CiKind.Illegal) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1958 TTY.println("Interval %d has no type assigned", i1.operandNumber);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1959 TTY.println(i1.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1960 throw new CiBailout("");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1961 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1962
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1963 if (i1.location() == null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1964 TTY.println("Interval %d has no register assigned", i1.operandNumber);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1965 TTY.println(i1.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1966 throw new CiBailout("");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1967 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1968
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1969 if (!isProcessed(i1.location())) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1970 TTY.println("Can not have an Interval for an ignored register " + i1.location());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1971 TTY.println(i1.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1972 throw new CiBailout("");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1973 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1974
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1975 if (i1.first() == Range.EndMarker) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1976 TTY.println("Interval %d has no Range", i1.operandNumber);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1977 TTY.println(i1.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1978 throw new CiBailout("");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1979 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1980
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1981 for (Range r = i1.first(); r != Range.EndMarker; r = r.next) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1982 if (r.from >= r.to) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1983 TTY.println("Interval %d has zero length range", i1.operandNumber);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1984 TTY.println(i1.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1985 throw new CiBailout("");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1986 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1987 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1988
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1989 for (int j = i + 1; j < len; j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1990 Interval i2 = intervals[j];
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1991 if (i2 == null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1992 continue;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1993 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1994
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1995 // special intervals that are created in MoveResolver
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1996 // . ignore them because the range information has no meaning there
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1997 if (i1.from() == 1 && i1.to() == 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1998 continue;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	1999 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2000 if (i2.from() == 1 && i2.to() == 2) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2001 continue;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2002 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2003 CiValue l1 = i1.location();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2004 CiValue l2 = i2.location();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2005 if (i1.intersects(i2) && (l1.equals(l2))) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2006 if (GraalOptions.DetailedAsserts) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2007 TTY.println("Intervals %d and %d overlap and have the same register assigned", i1.operandNumber, i2.operandNumber);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2008 TTY.println(i1.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2009 TTY.println(i2.logString(this));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2010 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2011 throw new CiBailout("");
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2012 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2013 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2014 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2015 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2016
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2017 void verifyNoOopsInFixedIntervals() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2018 Interval fixedIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2019 Interval otherIntervals;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2020 fixedIntervals = createUnhandledLists(IS_PRECOLORED_INTERVAL, null).first;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2021 // to ensure a walking until the last instruction id, add a dummy interval
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2022 // with a high operation id
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2023 otherIntervals = new Interval(context, CiValue.IllegalValue, -1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2024 otherIntervals.addRange(Integer.MAX_VALUE - 2, Integer.MAX_VALUE - 1);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2025 IntervalWalker iw = new IntervalWalker(this, fixedIntervals, otherIntervals);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2026
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2027 for (int i = 0; i < blockCount(); i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2028 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2029
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2030 List<LIRInstruction> instructions = block.lir();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2031
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2032 for (int j = 0; j < instructions.size(); j++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2033 LIRInstruction op = instructions.get(j);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2034
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2035 if (op.info != null) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2036 iw.walkBefore(op.id());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2037 boolean checkLive = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2038
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2039 // Make sure none of the fixed registers is live across an
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2040 // oopmap since we can't handle that correctly.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2041 if (checkLive) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2042 for (Interval interval = iw.activeLists.get(RegisterBinding.Fixed); interval != Interval.EndMarker; interval = interval.next) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2043 if (interval.currentTo() > op.id() + 1) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2044 // This interval is live out of this op so make sure
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2045 // that this interval represents some value that's
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2046 // referenced by this op either as an input or output.
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2047 boolean ok = false;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2048 for (LIRInstruction.OperandMode mode : LIRInstruction.OPERAND_MODES) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2049 int n = op.operandCount(mode);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2050 for (int k = 0; k < n; k++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2051 CiValue operand = op.operandAt(mode, k);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	2052 if (isRegister(operand)) {
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2053 if (intervalFor(operand) == interval) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2054 ok = true;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2055 break;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2056 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2057 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2058 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2059 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2060 assert ok : "fixed intervals should never be live across an oopmap point";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2061 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2062 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2063 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2064 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2065 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2066 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2067 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2068
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2069 void verifyConstants() {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2070 int numBlocks = blockCount();
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2071
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2072 for (int i = 0; i < numBlocks; i++) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2073 LIRBlock block = blockAt(i);
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2074 BitMap liveAtEdge = block.liveIn;
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2075
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2076 // visit all operands where the liveAtEdge bit is set
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2077 for (int operandNum = liveAtEdge.nextSetBit(0); operandNum >= 0; operandNum = liveAtEdge.nextSetBit(operandNum + 1)) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2078 if (GraalOptions.TraceLinearScanLevel >= 4) {
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2079 TTY.println("checking interval %d of block B%d", operandNum, block.blockID());
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2080 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2081 CiValue operand = operands.operandFor(operandNum);
4183 9e0c1b4cfef5 Move all isXxx and asXxx out of CiValue and into their own util class. Christian Wimmer <Christian.Wimmer@Oracle.com> parents: 4181 diff changeset	2082 assert isVariable(operand) : "value must have variable operand";
3733 e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2083 ValueNode value = gen.operands.instructionForResult(((CiVariable) operand));
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2084 assert value != null : "all intervals live across block boundaries must have Value";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2085 // TKR assert value.asConstant() == null \|\| value.isPinned() :
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2086 // "only pinned constants can be alive accross block boundaries";
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2087 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2088 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2089 }
e233f5660da4 Added Java files from Maxine project. Thomas Wuerthinger <thomas.wuerthinger@oracle.com> parents: diff changeset	2090 }

Mercurial > hg > truffle

annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/alloc/LinearScan.java @ 4199:aaac4894175c