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annotate graal/com.oracle.jvmci.asm.sparc/src/com/oracle/jvmci/asm/sparc/SPARCInstructionCounter.java @ 21710:26774dc3a5e7

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removed ExcludeFromIdentityComparisonVerification and replaced it with a white list in CheckGraalInvariants
author Doug Simon <doug.simon@oracle.com>
date Wed, 03 Jun 2015 21:34:21 +0200
parents 6df25b1418be
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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20003
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1 /*
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2 * Copyright (c) 2009, 2015, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
21708
6df25b1418be moved com.oracle.asm.** to jvmci-util.jar (JBS:GRAAL-53)
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23 package com.oracle.jvmci.asm.sparc;
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24
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25 import java.util.*;
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26
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27 import com.oracle.jvmci.asm.Assembler.*;
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28
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29 public class SPARCInstructionCounter implements InstructionCounter {
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30 // Use a treemap to keep the order in the output
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31 private static final TreeMap<String, SPARCInstructionMatch> INSTRUCTION_MATCHER = new TreeMap<>();
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32 static {
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33 // @formatter:off
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34 INSTRUCTION_MATCHER.put("nop", new SPARCInstructionMatch(0xFFFF_FFFF, 0x0100_0000));
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35 INSTRUCTION_MATCHER.put("st", new OP3LowBitsMatcher(0b11, 0x4, 0x5, 0x6, 0x7, 0xe, 0xf));
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36 INSTRUCTION_MATCHER.put("ld", new OP3LowBitsMatcher(0b11, 0x0, 0x1, 0x2, 0x3, 0x8, 0x9, 0xa, 0xb, 0xc, 0xd));
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37 INSTRUCTION_MATCHER.put("all", new SPARCInstructionMatch(0x0, 0x0));
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38 // @formatter:on
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39 }
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40 private final SPARCAssembler asm;
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41
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42 public SPARCInstructionCounter(SPARCAssembler asm) {
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43 super();
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44 this.asm = asm;
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45 }
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46
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47 @Override
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48 public int[] countInstructions(String[] instructionTypes, int beginPc, int endPc) {
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49 SPARCInstructionMatch[] matchers = new SPARCInstructionMatch[instructionTypes.length];
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50 for (int i = 0; i < instructionTypes.length; i++) {
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51 String typeName = instructionTypes[i];
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52 matchers[i] = INSTRUCTION_MATCHER.get(typeName);
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53 if (matchers[i] == null) {
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54 throw new IllegalArgumentException(String.format("Unknown instruction class %s, supported types are: %s", typeName, INSTRUCTION_MATCHER.keySet()));
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55 }
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56 }
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57 return countBetween(matchers, beginPc, endPc);
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58 }
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59
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60 private int[] countBetween(SPARCInstructionMatch[] matchers, int startPc, int endPc) {
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61 int[] counts = new int[matchers.length];
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62 for (int p = startPc; p < endPc; p += 4) {
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63 int instr = asm.getInt(p);
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64 for (int i = 0; i < matchers.length; i++) {
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65 SPARCInstructionMatch matcher = matchers[i];
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66 if (matcher.matches(instr)) {
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67 counts[i]++;
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68 }
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69 }
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70 }
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71 return counts;
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72 }
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73
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74 @Override
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75 public String[] getSupportedInstructionTypes() {
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76 return INSTRUCTION_MATCHER.keySet().toArray(new String[0]);
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77 }
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78
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79 /**
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80 * Tests the lower 3 bits of the op3 field.
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81 */
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82 private static class OP3LowBitsMatcher extends SPARCInstructionMatch {
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83 private final int[] op3b03;
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84 private final int op;
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85
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86 public OP3LowBitsMatcher(int op, int... op3b03) {
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87 super(0, 0);
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88 this.op = op;
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89 this.op3b03 = op3b03;
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90 }
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91
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92 @Override
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93 public boolean matches(int instruction) {
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94 if (instruction >>> 30 != op) {
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95 return false;
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96 }
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97 int op3lo = (instruction >> 19) & ((1 << 4) - 1);
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98 for (int op3Part : op3b03) {
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99 if (op3Part == op3lo) {
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100 return true;
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101 }
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102 }
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103 return false;
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104 }
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105 }
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106
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107 private static class SPARCInstructionMatch {
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108 private final int mask;
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109 private final int[] patterns;
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110
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111 public SPARCInstructionMatch(int mask, int... patterns) {
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112 super();
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113 this.mask = mask;
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114 this.patterns = patterns;
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115 }
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116
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117 public boolean matches(int instruction) {
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118 for (int pattern : patterns) {
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119 if ((instruction & mask) == pattern) {
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120 return true;
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121 }
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122 }
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123 return false;
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124 }
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125 }
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126 }