Mercurial > hg > graal-jvmci-8
view graal/com.oracle.jvmci.asm.sparc/src/com/oracle/jvmci/asm/sparc/SPARCInstructionCounter.java @ 21711:1c41d00e6b2f
moved com.oracle.graal.bytecode to JVMCI namespace (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 03 Jun 2015 21:42:01 +0200 |
parents | 6df25b1418be |
children |
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/* * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.jvmci.asm.sparc; import java.util.*; import com.oracle.jvmci.asm.Assembler.*; public class SPARCInstructionCounter implements InstructionCounter { // Use a treemap to keep the order in the output private static final TreeMap<String, SPARCInstructionMatch> INSTRUCTION_MATCHER = new TreeMap<>(); static { // @formatter:off INSTRUCTION_MATCHER.put("nop", new SPARCInstructionMatch(0xFFFF_FFFF, 0x0100_0000)); INSTRUCTION_MATCHER.put("st", new OP3LowBitsMatcher(0b11, 0x4, 0x5, 0x6, 0x7, 0xe, 0xf)); INSTRUCTION_MATCHER.put("ld", new OP3LowBitsMatcher(0b11, 0x0, 0x1, 0x2, 0x3, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd)); INSTRUCTION_MATCHER.put("all", new SPARCInstructionMatch(0x0, 0x0)); // @formatter:on } private final SPARCAssembler asm; public SPARCInstructionCounter(SPARCAssembler asm) { super(); this.asm = asm; } @Override public int[] countInstructions(String[] instructionTypes, int beginPc, int endPc) { SPARCInstructionMatch[] matchers = new SPARCInstructionMatch[instructionTypes.length]; for (int i = 0; i < instructionTypes.length; i++) { String typeName = instructionTypes[i]; matchers[i] = INSTRUCTION_MATCHER.get(typeName); if (matchers[i] == null) { throw new IllegalArgumentException(String.format("Unknown instruction class %s, supported types are: %s", typeName, INSTRUCTION_MATCHER.keySet())); } } return countBetween(matchers, beginPc, endPc); } private int[] countBetween(SPARCInstructionMatch[] matchers, int startPc, int endPc) { int[] counts = new int[matchers.length]; for (int p = startPc; p < endPc; p += 4) { int instr = asm.getInt(p); for (int i = 0; i < matchers.length; i++) { SPARCInstructionMatch matcher = matchers[i]; if (matcher.matches(instr)) { counts[i]++; } } } return counts; } @Override public String[] getSupportedInstructionTypes() { return INSTRUCTION_MATCHER.keySet().toArray(new String[0]); } /** * Tests the lower 3 bits of the op3 field. */ private static class OP3LowBitsMatcher extends SPARCInstructionMatch { private final int[] op3b03; private final int op; public OP3LowBitsMatcher(int op, int... op3b03) { super(0, 0); this.op = op; this.op3b03 = op3b03; } @Override public boolean matches(int instruction) { if (instruction >>> 30 != op) { return false; } int op3lo = (instruction >> 19) & ((1 << 4) - 1); for (int op3Part : op3b03) { if (op3Part == op3lo) { return true; } } return false; } } private static class SPARCInstructionMatch { private final int mask; private final int[] patterns; public SPARCInstructionMatch(int mask, int... patterns) { super(); this.mask = mask; this.patterns = patterns; } public boolean matches(int instruction) { for (int pattern : patterns) { if ((instruction & mask) == pattern) { return true; } } return false; } } }