Mercurial > hg > truffle
annotate 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> |
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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 |
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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 */ |
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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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Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
119 if ((instruction & mask) == pattern) { |
422e60a2f4b9
Implement dynamic instruction counters on assembly level
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
120 return true; |
422e60a2f4b9
Implement dynamic instruction counters on assembly level
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
121 } |
422e60a2f4b9
Implement dynamic instruction counters on assembly level
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
122 } |
422e60a2f4b9
Implement dynamic instruction counters on assembly level
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
123 return false; |
422e60a2f4b9
Implement dynamic instruction counters on assembly level
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
124 } |
422e60a2f4b9
Implement dynamic instruction counters on assembly level
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
125 } |
422e60a2f4b9
Implement dynamic instruction counters on assembly level
Stefan Anzinger <stefan.anzinger@oracle.com>
parents:
diff
changeset
|
126 } |