Mercurial > hg > graal-compiler
diff graal/com.oracle.jvmci.asm.sparc/src/com/oracle/jvmci/asm/sparc/SPARCInstructionCounter.java @ 21708:6df25b1418be
moved com.oracle.asm.** to jvmci-util.jar (JBS:GRAAL-53)
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 03 Jun 2015 18:06:44 +0200 |
parents | graal/com.oracle.graal.asm.sparc/src/com/oracle/graal/asm/sparc/SPARCInstructionCounter.java@422e60a2f4b9 |
children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.jvmci.asm.sparc/src/com/oracle/jvmci/asm/sparc/SPARCInstructionCounter.java Wed Jun 03 18:06:44 2015 +0200 @@ -0,0 +1,126 @@ +/* + * 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; + } + } +}