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annotate graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotMove.java @ 11959:23ccaa863eda

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made CodeCacheProvider independent of MetaAccessProvider (GRAAL-511)
author Doug Simon <doug.simon@oracle.com>
date Thu, 10 Oct 2013 16:14:55 +0200
parents df18a4214c7c
children ccb4f2af2319
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11474
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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1 /*
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2 * Copyright (c) 2013, 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
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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6 * under the terms of the GNU General Public License version 2 only, as
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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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
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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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
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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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,
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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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
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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20 * or visit www.oracle.com if you need additional information or have any
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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21 * questions.
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22 */
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23 package com.oracle.graal.hotspot.amd64;
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24
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25 import static com.oracle.graal.api.code.ValueUtil.*;
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26 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
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27
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28 import com.oracle.graal.amd64.*;
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29 import com.oracle.graal.api.code.*;
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30 import com.oracle.graal.api.meta.*;
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31 import com.oracle.graal.asm.*;
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32 import com.oracle.graal.asm.amd64.*;
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33 import com.oracle.graal.asm.amd64.AMD64Assembler.ConditionFlag;
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34 import com.oracle.graal.graph.*;
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35 import com.oracle.graal.hotspot.meta.*;
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36 import com.oracle.graal.lir.*;
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37 import com.oracle.graal.lir.amd64.*;
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38 import com.oracle.graal.lir.amd64.AMD64Move.LoadOp;
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39 import com.oracle.graal.lir.amd64.AMD64Move.StoreConstantOp;
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40 import com.oracle.graal.lir.asm.*;
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41
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42 public class AMD64HotSpotMove {
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43
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44 public static class StoreCompressedConstantOp extends StoreConstantOp {
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45
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46 public StoreCompressedConstantOp(Kind kind, AMD64AddressValue address, Constant input, LIRFrameState state) {
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47 super(kind, address, input, state);
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48 }
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49
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50 @Override
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51 public void emitMemAccess(AMD64MacroAssembler masm) {
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52 if (kind == Kind.Long) {
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53 if (NumUtil.isInt(input.asLong())) {
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54 masm.movl(address.toAddress(), (int) input.asLong());
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55 } else {
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56 throw GraalInternalError.shouldNotReachHere("Cannot store 64-bit constants to memory");
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57 }
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58 } else if (kind == Kind.Object) {
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59 if (input.isNull()) {
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60 masm.movl(address.toAddress(), 0);
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61 } else {
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62 throw GraalInternalError.shouldNotReachHere("Cannot store 64-bit constants to memory");
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63 }
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64 } else {
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65 throw GraalInternalError.shouldNotReachHere("Attempt to store compressed constant of wrong type.");
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66 }
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67 }
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68 }
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69
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70 public static class LoadCompressedPointer extends LoadOp {
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71
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72 private long base;
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73 private int shift;
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74 private int alignment;
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75 @Alive({REG}) protected AllocatableValue heapBaseRegister;
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76
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77 public LoadCompressedPointer(Kind kind, AllocatableValue result, AllocatableValue heapBaseRegister, AMD64AddressValue address, LIRFrameState state, long base, int shift, int alignment) {
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78 super(kind, result, address, state);
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79 this.base = base;
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80 this.shift = shift;
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81 this.alignment = alignment;
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82 this.heapBaseRegister = heapBaseRegister;
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83 assert kind == Kind.Object || kind == Kind.Long;
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84 }
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85
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86 @Override
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87 public void emitMemAccess(AMD64MacroAssembler masm) {
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88 Register resRegister = asRegister(result);
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89 masm.movl(resRegister, address.toAddress());
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90 if (kind == Kind.Object) {
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91 decodePointer(masm, resRegister, asRegister(heapBaseRegister), base, shift, alignment);
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92 } else {
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93 decodeKlassPointer(masm, resRegister, asRegister(heapBaseRegister), base, shift, alignment);
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94 }
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95 }
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96 }
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97
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98 public static class StoreCompressedPointer extends AMD64LIRInstruction {
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99
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100 protected final Kind kind;
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101 private long base;
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102 private int shift;
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103 private int alignment;
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104 @Temp({REG}) private AllocatableValue scratch;
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105 @Alive({REG}) protected AllocatableValue input;
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106 @Alive({COMPOSITE}) protected AMD64AddressValue address;
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107 @State protected LIRFrameState state;
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108
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109 public StoreCompressedPointer(Kind kind, AMD64AddressValue address, AllocatableValue input, AllocatableValue scratch, LIRFrameState state, long base, int shift, int alignment) {
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110 this.base = base;
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111 this.shift = shift;
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112 this.alignment = alignment;
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113 this.scratch = scratch;
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114 this.kind = kind;
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115 this.address = address;
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116 this.state = state;
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117 this.input = input;
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118 assert kind == Kind.Object || kind == Kind.Long;
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119 }
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120
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121 @Override
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122 public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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123 Register heapBase = ((HotSpotRuntime) tasm.codeCache).heapBaseRegister();
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124 masm.movq(asRegister(scratch), asRegister(input));
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125 if (kind == Kind.Object) {
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126 encodePointer(masm, asRegister(scratch), heapBase, base, shift, alignment);
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127 } else {
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diff changeset
128 encodeKlassPointer(masm, asRegister(scratch), heapBase, base, shift, alignment);
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129 }
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diff changeset
130 if (state != null) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
131 tasm.recordImplicitException(masm.codeBuffer.position(), state);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
132 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
133 masm.movl(address.toAddress(), asRegister(scratch));
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
134 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
135 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
136
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
137 @Opcode("CAS")
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
138 public static class CompareAndSwapCompressedOp extends AMD64LIRInstruction {
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parents:
diff changeset
139
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parents:
diff changeset
140 @Def protected AllocatableValue result;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
141 @Alive({COMPOSITE}) protected AMD64AddressValue address;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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142 @Alive protected AllocatableValue cmpValue;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
143 @Alive protected AllocatableValue newValue;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
144 @Temp({REG}) protected AllocatableValue scratch;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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145
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diff changeset
146 private long base;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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147 private int shift;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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148 private int alignment;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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149
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150 public CompareAndSwapCompressedOp(AllocatableValue result, AMD64AddressValue address, AllocatableValue cmpValue, AllocatableValue newValue, AllocatableValue scratch, long base, int shift,
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
151 int alignment) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
152 this.base = base;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
153 this.shift = shift;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
154 this.alignment = alignment;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
155 this.scratch = scratch;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
156 this.result = result;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
157 this.address = address;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
158 this.cmpValue = cmpValue;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
159 this.newValue = newValue;
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
160 assert cmpValue.getKind() == Kind.Object;
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161 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
162
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diff changeset
163 @Override
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diff changeset
164 public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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parents:
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165 compareAndSwapCompressed(tasm, masm, result, address, cmpValue, newValue, scratch, base, shift, alignment);
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166 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
167 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
168
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parents:
diff changeset
169 protected static void compareAndSwapCompressed(TargetMethodAssembler tasm, AMD64MacroAssembler masm, AllocatableValue result, AMD64AddressValue address, AllocatableValue cmpValue,
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170 AllocatableValue newValue, AllocatableValue scratch, long base, int shift, int alignment) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
171 assert AMD64.rax.equals(asRegister(cmpValue)) && AMD64.rax.equals(asRegister(result));
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diff changeset
172 final Register scratchRegister = asRegister(scratch);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
173 final Register cmpRegister = asRegister(cmpValue);
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parents:
diff changeset
174 final Register newRegister = asRegister(newValue);
11959
23ccaa863eda made CodeCacheProvider independent of MetaAccessProvider (GRAAL-511)
Doug Simon <doug.simon@oracle.com>
parents: 11474
diff changeset
175 Register heapBase = ((HotSpotRuntime) tasm.codeCache).heapBaseRegister();
11474
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
176 encodePointer(masm, cmpRegister, heapBase, base, shift, alignment);
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177 masm.movq(scratchRegister, newRegister);
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diff changeset
178 encodePointer(masm, scratchRegister, heapBase, base, shift, alignment);
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diff changeset
179 if (tasm.target.isMP) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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diff changeset
180 masm.lock();
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
181 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
182 masm.cmpxchgl(scratchRegister, address.toAddress());
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parents:
diff changeset
183 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
184
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
185 private static void encodePointer(AMD64MacroAssembler masm, Register scratchRegister, Register heapBaseRegister, long base, int shift, int alignment) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
186 // If the base is zero, the uncompressed address has to be shifted right
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
187 // in order to be compressed.
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
188 if (base == 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
189 if (shift != 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
190 assert alignment == shift : "Encode algorithm is wrong";
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
191 masm.shrq(scratchRegister, alignment);
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parents:
diff changeset
192 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
193 } else {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
194 // Otherwise the heap base, which resides always in register 12, is subtracted
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
195 // followed by right shift.
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
196 masm.testq(scratchRegister, scratchRegister);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
197 // If the stored reference is null, move the heap to scratch
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
198 // register and then calculate the compressed oop value.
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
199 masm.cmovq(ConditionFlag.Equal, scratchRegister, heapBaseRegister);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
200 masm.subq(scratchRegister, heapBaseRegister);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
201 masm.shrq(scratchRegister, alignment);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
202 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
203 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
204
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
205 private static void decodePointer(AMD64MacroAssembler masm, Register resRegister, Register heapBaseRegister, long base, int shift, int alignment) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
206 // If the base is zero, the compressed address has to be shifted left
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
207 // in order to be uncompressed.
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
208 if (base == 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
209 if (shift != 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
210 assert alignment == shift : "Decode algorithm is wrong";
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
211 masm.shlq(resRegister, alignment);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
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parents:
diff changeset
212 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
213 } else {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
214 Label done = new Label();
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
215 masm.shlq(resRegister, alignment);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
216 masm.jccb(ConditionFlag.Equal, done);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
217 // Otherwise the heap base is added to the shifted address.
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
218 masm.addq(resRegister, heapBaseRegister);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
219 masm.bind(done);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
220 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
221 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
222
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
223 private static void encodeKlassPointer(AMD64MacroAssembler masm, Register scratchRegister, Register heapBaseRegister, long base, int shift, int alignment) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
224 if (base != 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
225 masm.subq(scratchRegister, heapBaseRegister);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
226 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
227 if (shift != 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
228 assert alignment == shift : "Encode algorithm is wrong";
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
229 masm.shrq(scratchRegister, alignment);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
230 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
231 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
232
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
233 private static void decodeKlassPointer(AMD64MacroAssembler masm, Register resRegister, Register heapBaseRegister, long base, int shift, int alignment) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
234 if (shift != 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
235 assert alignment == shift : "Decode algorithm is wrong";
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
236 masm.shlq(resRegister, alignment);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
237 if (base != 0) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
238 masm.addq(resRegister, heapBaseRegister);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
239 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
240 } else {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
241 assert base == 0 : "Sanity";
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
242 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
243 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
244
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
245 public static void decodeKlassPointer(AMD64MacroAssembler masm, Register register, Register heapBaseRegister, AMD64Address address, long narrowKlassBase, int narrowKlassShift,
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
246 int logKlassAlignment) {
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
247 masm.movl(register, address);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
248 decodeKlassPointer(masm, register, heapBaseRegister, narrowKlassBase, narrowKlassShift, logKlassAlignment);
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
249 }
df18a4214c7c Move compressed pointers' logic to HotSpot specific move
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
diff changeset
250 }