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annotate graal/com.oracle.max.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64Call.java @ 5060:4ed4295ce15f

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Update import statements.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Thu, 08 Mar 2012 19:11:12 +0100
parents ed559a528128
children
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1 /*
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2 * Copyright (c) 2011, 2012, 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.graal.lir.amd64;
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24
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25 import static com.oracle.max.cri.ci.CiValueUtil.*;
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26
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27 import java.util.*;
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28
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29 import com.oracle.max.asm.target.amd64.*;
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30 import com.oracle.max.cri.ci.*;
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31 import com.oracle.max.cri.ci.CiTargetMethod.Mark;
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32 import com.oracle.max.cri.xir.CiXirAssembler.XirMark;
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33 import com.oracle.graal.graph.*;
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34 import com.oracle.graal.lir.*;
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35 import com.oracle.graal.lir.asm.*;
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36
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37 public class AMD64Call {
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38
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39 public static class DirectCallOp extends AMD64LIRInstruction implements StandardOp.CallOp {
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40 private final Object targetMethod;
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41 private final Map<XirMark, Mark> marks;
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42
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43 public DirectCallOp(Object targetMethod, CiValue result, CiValue[] parameters, LIRDebugInfo info, Map<XirMark, Mark> marks) {
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44 super("CALL_DIRECT", new CiValue[] {result}, info, parameters, LIRInstruction.NO_OPERANDS, LIRInstruction.NO_OPERANDS);
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45 this.targetMethod = targetMethod;
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46 this.marks = marks;
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47 }
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48
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49 @Override
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50 public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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51 callAlignment(tasm, masm);
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52 if (marks != null) {
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53 marks.put(XirMark.CALLSITE, tasm.recordMark(null, new Mark[0]));
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54 }
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55 directCall(tasm, masm, targetMethod, info);
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56 }
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57
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58 @Override
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59 protected EnumSet<OperandFlag> flagsFor(OperandMode mode, int index) {
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60 if (mode == OperandMode.Input) {
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61 return EnumSet.of(OperandFlag.Register, OperandFlag.Stack);
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62 } else if (mode == OperandMode.Output) {
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63 return EnumSet.of(OperandFlag.Register, OperandFlag.Illegal);
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64 }
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65 throw GraalInternalError.shouldNotReachHere();
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66 }
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67 }
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68
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69 public static class IndirectCallOp extends AMD64LIRInstruction implements StandardOp.CallOp {
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70 private final Object targetMethod;
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71 private final Map<XirMark, Mark> marks;
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72
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73 private static CiValue[] concat(CiValue[] parameters, CiValue targetAddress) {
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74 CiValue[] result = Arrays.copyOf(parameters, parameters.length + 1);
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75 result[result.length - 1] = targetAddress;
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76 return result;
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77 }
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78
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79 public IndirectCallOp(Object targetMethod, CiValue result, CiValue[] parameters, CiValue targetAddress, LIRDebugInfo info, Map<XirMark, Mark> marks) {
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80 super("CALL_INDIRECT", new CiValue[] {result}, info, concat(parameters, targetAddress), LIRInstruction.NO_OPERANDS, LIRInstruction.NO_OPERANDS);
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81 this.targetMethod = targetMethod;
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82 this.marks = marks;
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83 }
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84
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85 private CiValue targetAddress() {
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86 return input(inputs.length - 1);
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87 }
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88
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89 @Override
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90 public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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91 callAlignment(tasm, masm);
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92 if (marks != null) {
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93 marks.put(XirMark.CALLSITE, tasm.recordMark(null, new Mark[0]));
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94 }
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95 indirectCall(tasm, masm, asRegister(targetAddress()), targetMethod, info);
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96 }
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97
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98 @Override
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99 protected EnumSet<OperandFlag> flagsFor(OperandMode mode, int index) {
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100 if (mode == OperandMode.Input) {
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101 return EnumSet.of(OperandFlag.Register, OperandFlag.Stack);
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102 } else if (mode == OperandMode.Output) {
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103 return EnumSet.of(OperandFlag.Register, OperandFlag.Illegal);
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104 }
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105 throw GraalInternalError.shouldNotReachHere();
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106 }
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107 }
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108
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109
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110 public static void callAlignment(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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111 // make sure that the displacement word of the call ends up word aligned
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112 int offset = masm.codeBuffer.position();
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113 offset += tasm.target.arch.machineCodeCallDisplacementOffset;
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114 while (offset++ % tasm.target.wordSize != 0) {
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115 masm.nop();
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116 }
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117 }
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118
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119 public static void directCall(TargetMethodAssembler tasm, AMD64MacroAssembler masm, Object target, LIRDebugInfo info) {
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120 int before = masm.codeBuffer.position();
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121 if (target instanceof CiRuntimeCall) {
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122 long maxOffset = tasm.runtime.getMaxCallTargetOffset((CiRuntimeCall) target);
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123 if (maxOffset != (int) maxOffset) {
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124 // offset might not fit a 32-bit immediate, generate an
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125 // indirect call with a 64-bit immediate
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126 CiRegister scratch = tasm.frameMap.registerConfig.getScratchRegister();
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127 // TODO (cwimmer): we want to get rid of a generally reserved scratch register.
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128 masm.movq(scratch, 0L);
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129 masm.call(scratch);
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130 } else {
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131 masm.call();
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132 }
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133 } else {
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134 masm.call();
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135 }
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136 int after = masm.codeBuffer.position();
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137 tasm.recordDirectCall(before, after, tasm.runtime.asCallTarget(target), info);
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138 tasm.recordExceptionHandlers(after, info);
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139 masm.ensureUniquePC();
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140 }
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141
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142 public static void directJmp(TargetMethodAssembler tasm, AMD64MacroAssembler masm, Object target) {
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143 int before = masm.codeBuffer.position();
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144 masm.jmp(0, true);
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145 int after = masm.codeBuffer.position();
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146 tasm.recordDirectCall(before, after, tasm.runtime.asCallTarget(target), null);
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147 masm.ensureUniquePC();
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148 }
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149
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150 public static void indirectCall(TargetMethodAssembler tasm, AMD64MacroAssembler masm, CiRegister dst, Object target, LIRDebugInfo info) {
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151 int before = masm.codeBuffer.position();
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152 masm.call(dst);
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153 int after = masm.codeBuffer.position();
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154 tasm.recordIndirectCall(before, after, tasm.runtime.asCallTarget(target), info);
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155 tasm.recordExceptionHandlers(after, info);
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156 masm.ensureUniquePC();
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157 }
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158
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159 public static void shouldNotReachHere(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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160 boolean assertions = false;
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161 assert (assertions = true) == true;
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162
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163 if (assertions) {
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164 directCall(tasm, masm, CiRuntimeCall.Debug, null);
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165 masm.hlt();
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166 }
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167 }
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168 }