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annotate graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/target/amd64/AMD64CallOpcode.java @ 4142:bc8527f3071c

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Adjust code base to new level of warnings.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Sun, 18 Dec 2011 05:24:06 +0100
parents e233f5660da4
children 9e0c1b4cfef5
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1 /*
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2 * Copyright (c) 2011, 2011, 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.max.graal.compiler.target.amd64;
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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.max.asm.target.amd64.*;
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28 import com.oracle.max.graal.compiler.*;
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29 import com.oracle.max.graal.compiler.asm.*;
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30 import com.oracle.max.graal.compiler.lir.*;
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31 import com.oracle.max.graal.compiler.stub.*;
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32 import com.oracle.max.graal.compiler.util.*;
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33 import com.sun.cri.ci.*;
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34 import com.sun.cri.ci.CiTargetMethod.Mark;
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35 import com.sun.cri.xir.CiXirAssembler.XirMark;
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36
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37 public enum AMD64CallOpcode implements StandardOpcode.CallOpcode {
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38 DIRECT_CALL, INDIRECT_CALL, NATIVE_CALL;
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39
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40 public LIRInstruction create(Object target, CiValue result, List<CiValue> arguments, CiValue targetAddress, LIRDebugInfo info, Map<XirMark, Mark> marks) {
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41 return new LIRCall(this, target, result, arguments, targetAddress, info, marks) {
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42 @Override
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43 public void emitCode(TargetMethodAssembler tasm) {
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44 emit(tasm, (AMD64MacroAssembler) tasm.asm, this);
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45 }
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46
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47 @Override
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48 public boolean hasCall() {
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49 return true;
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50 }
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51 };
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52 }
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53
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54 private void emit(TargetMethodAssembler tasm, AMD64MacroAssembler masm, LIRCall op) {
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55 switch (this) {
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56 case DIRECT_CALL: {
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57 callAlignment(tasm, masm);
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58 if (op.marks != null) {
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59 op.marks.put(XirMark.CALLSITE, tasm.recordMark(null, new Mark[0]));
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60 }
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61 directCall(tasm, masm, op.target, op.info);
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62 break;
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63 }
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64 case INDIRECT_CALL: {
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65 callAlignment(tasm, masm);
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66 if (op.marks != null) {
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67 op.marks.put(XirMark.CALLSITE, tasm.recordMark(null, new Mark[0]));
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68 }
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69 CiRegister reg = tasm.asRegister(op.targetAddress());
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70 indirectCall(tasm, masm, reg, op.target, op.info);
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71 break;
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72 }
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73 case NATIVE_CALL: {
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74 CiRegister reg = tasm.asRegister(op.targetAddress());
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75 indirectCall(tasm, masm, reg, op.target, op.info);
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76 break;
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77 }
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78 default:
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79 throw Util.shouldNotReachHere();
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80 }
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81 }
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82
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83
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84 public static void callAlignment(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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85 if (GraalOptions.AlignCallsForPatching) {
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86 // make sure that the displacement word of the call ends up word aligned
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87 int offset = masm.codeBuffer.position();
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88 offset += tasm.target.arch.machineCodeCallDisplacementOffset;
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89 while (offset++ % tasm.target.wordSize != 0) {
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90 masm.nop();
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91 }
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92 }
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93 }
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94
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95 public static void callStub(TargetMethodAssembler tasm, AMD64MacroAssembler masm, CompilerStub stub, LIRDebugInfo info, CiValue result, CiValue... args) {
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96 assert args.length == stub.inArgs.length;
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97 for (int i = 0; i < args.length; i++) {
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98 assert stub.inArgs[i].inCallerFrame();
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99 AMD64MoveOpcode.move(tasm, masm, stub.inArgs[i].asOutArg(), args[i]);
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100 }
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101
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102 directCall(tasm, masm, stub.stubObject, info);
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103
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104 if (result.isLegal()) {
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105 AMD64MoveOpcode.move(tasm, masm, result, stub.outResult.asOutArg());
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106 }
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107
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108 // Clear out parameters
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109 if (GraalOptions.GenAssertionCode) {
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110 for (int i = 0; i < args.length; i++) {
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111 CiStackSlot inArg = stub.inArgs[i];
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112 CiStackSlot outArg = inArg.asOutArg();
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113 CiAddress dst = tasm.asAddress(outArg);
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114 masm.movptr(dst, 0);
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115 }
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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.compilation.compiler.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.compilation.registerConfig.getScratchRegister();
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127 // TODO(cwi): 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, asCallTarget(tasm, 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, asCallTarget(tasm, 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, asCallTarget(tasm, 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 private static Object asCallTarget(TargetMethodAssembler tasm, Object o) {
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160 return tasm.compilation.compiler.runtime.asCallTarget(o);
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161 }
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162
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163 public static void shouldNotReachHere(TargetMethodAssembler tasm, AMD64MacroAssembler masm) {
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164 if (GraalOptions.GenAssertionCode) {
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165 directCall(tasm, masm, CiRuntimeCall.Debug, null);
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166 masm.hlt();
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167 }
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168 }
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169 }