annotate graal/GraalCompiler/src/com/sun/c1x/target/amd64/AMD64LIRGenerator.java @ 2712:a0dd2b907806

Removed implicit safepoints.
author Thomas Wuerthinger <thomas@wuerthinger.net>
date Thu, 19 May 2011 13:09:37 +0200
parents 4272b7af2d17
children c1ce2a53d6c3
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 /*
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2 * Copyright (c) 2009, 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
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24 package com.sun.c1x.target.amd64;
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25
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26 import com.oracle.max.asm.*;
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27 import com.oracle.max.asm.target.amd64.*;
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28 import com.sun.c1x.*;
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29 import com.sun.c1x.gen.*;
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30 import com.sun.c1x.globalstub.*;
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31 import com.sun.c1x.ir.*;
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32 import com.sun.c1x.lir.*;
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33 import com.sun.c1x.util.*;
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34 import com.sun.cri.bytecode.*;
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35 import com.sun.cri.ci.*;
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36 import com.sun.cri.ri.*;
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37 import com.sun.cri.ri.RiType.*;
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38 import com.sun.cri.xir.*;
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39
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40 /**
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41 * This class implements the X86-specific portion of the LIR generator.
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42 */
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43 public class AMD64LIRGenerator extends LIRGenerator {
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44
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45 private static final CiRegisterValue RAX_I = AMD64.rax.asValue(CiKind.Int);
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46 private static final CiRegisterValue RAX_L = AMD64.rax.asValue(CiKind.Long);
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47 private static final CiRegisterValue RAX_W = AMD64.rax.asValue(CiKind.Word);
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48 private static final CiRegisterValue RDX_I = AMD64.rdx.asValue(CiKind.Int);
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49 private static final CiRegisterValue RDX_L = AMD64.rdx.asValue(CiKind.Long);
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50
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51 private static final CiRegisterValue LDIV_TMP = RDX_L;
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52
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53
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54 /**
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55 * The register in which MUL puts the result for 64-bit multiplication.
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56 */
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57 private static final CiRegisterValue LMUL_OUT = RAX_L;
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58
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59 private static final CiRegisterValue SHIFT_COUNT_IN = AMD64.rcx.asValue(CiKind.Int);
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60
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61 protected static final CiValue ILLEGAL = CiValue.IllegalValue;
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62
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63 public AMD64LIRGenerator(C1XCompilation compilation) {
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64 super(compilation);
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65 }
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66
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67 @Override
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68 protected boolean canStoreAsConstant(Value v, CiKind kind) {
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69 if (kind == CiKind.Short || kind == CiKind.Char) {
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70 // there is no immediate move of word values in asemblerI486.?pp
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71 return false;
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72 }
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73 return v instanceof Constant;
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74 }
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75
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76 @Override
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77 protected boolean canInlineAsConstant(Value v) {
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78 if (v.kind == CiKind.Long) {
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79 if (v.isConstant() && NumUtil.isInt(v.asConstant().asLong())) {
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80 return true;
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81 }
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82 return false;
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83 }
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84 return v.kind != CiKind.Object || v.isNullConstant();
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85 }
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86
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87 @Override
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88 protected CiAddress genAddress(CiValue base, CiValue index, int shift, int disp, CiKind kind) {
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89 assert base.isVariableOrRegister();
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90 if (index.isConstant()) {
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91 return new CiAddress(kind, base, (((CiConstant) index).asInt() << shift) + disp);
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92 } else {
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93 assert index.isVariableOrRegister();
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94 return new CiAddress(kind, base, (index), CiAddress.Scale.fromShift(shift), disp);
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95 }
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96 }
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97
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98 @Override
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99 protected void genCmpMemInt(Condition condition, CiValue base, int disp, int c, LIRDebugInfo info) {
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100 lir.cmpMemInt(condition, base, disp, c, info);
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101 }
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102
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103 @Override
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104 protected void genCmpRegMem(Condition condition, CiValue reg, CiValue base, int disp, CiKind kind, LIRDebugInfo info) {
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105 lir.cmpRegMem(condition, reg, new CiAddress(kind, base, disp), info);
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106 }
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107
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108 @Override
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109 protected boolean strengthReduceMultiply(CiValue left, int c, CiValue result, CiValue tmp) {
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110 if (tmp.isLegal()) {
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111 if (CiUtil.isPowerOf2(c + 1)) {
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112 lir.move(left, tmp);
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113 lir.shiftLeft(left, CiUtil.log2(c + 1), left);
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114 lir.sub(left, tmp, result);
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115 return true;
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116 } else if (CiUtil.isPowerOf2(c - 1)) {
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117 lir.move(left, tmp);
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118 lir.shiftLeft(left, CiUtil.log2(c - 1), left);
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119 lir.add(left, tmp, result);
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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 @Override
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127 public void visitNegateOp(NegateOp x) {
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128 LIRItem value = new LIRItem(x.x(), this);
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129 value.setDestroysRegister();
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130 value.loadItem();
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131 CiVariable reg = newVariable(x.kind);
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132 GlobalStub globalStub = null;
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133 if (x.kind == CiKind.Float) {
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134 globalStub = stubFor(GlobalStub.Id.fneg);
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135 } else if (x.kind == CiKind.Double) {
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136 globalStub = stubFor(GlobalStub.Id.dneg);
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137 }
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138 lir.negate(value.result(), reg, globalStub);
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139 setResult(x, reg);
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140 }
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141
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142 public boolean livesLonger(Value x, Value y) {
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143 BlockBegin bx = x.block();
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144 BlockBegin by = y.block();
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145 if (bx == null || by == null) {
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146 return false;
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147 }
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148 return bx.loopDepth() < by.loopDepth();
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149 }
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150
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151 public void visitArithmeticOpFloat(ArithmeticOp x) {
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152 LIRItem left = new LIRItem(x.x(), this);
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153 LIRItem right = new LIRItem(x.y(), this);
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154 assert !left.isStack() || !right.isStack() : "can't both be memory operands";
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155 boolean mustLoadBoth = x.opcode == Bytecodes.FREM || x.opcode == Bytecodes.DREM;
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156
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157 // Both are in register, swap operands such that the short-living one is on the left side.
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158 if (x.isCommutative() && left.isRegisterOrVariable() && right.isRegisterOrVariable()) {
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159 if (livesLonger(x.x(), x.y())) {
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160 LIRItem tmp = left;
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161 left = right;
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162 right = tmp;
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163 }
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164 }
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165
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166 if (left.isRegisterOrVariable() || x.x().isConstant() || mustLoadBoth) {
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167 left.loadItem();
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168 }
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169
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170 if (mustLoadBoth) {
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171 // frem and drem destroy also right operand, so move it to a new register
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172 right.setDestroysRegister();
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173 right.loadItem();
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174 } else if (right.isRegisterOrVariable()) {
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175 right.loadItem();
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176 }
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177
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178 CiVariable reg;
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179
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180 if (x.opcode == Bytecodes.FREM) {
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181 reg = callRuntimeWithResult(CiRuntimeCall.ArithmeticFrem, null, left.result(), right.result());
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182 } else if (x.opcode == Bytecodes.DREM) {
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183 reg = callRuntimeWithResult(CiRuntimeCall.ArithmeticDrem, null, left.result(), right.result());
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184 } else {
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185 reg = newVariable(x.kind);
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186 arithmeticOpFpu(x.opcode, reg, left.result(), right.result(), ILLEGAL);
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187 }
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188
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189 setResult(x, reg);
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190 }
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191
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192 public void visitArithmeticOpLong(ArithmeticOp x) {
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193 int opcode = x.opcode;
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194 if (opcode == Bytecodes.LDIV || opcode == Bytecodes.LREM) {
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195 // emit inline 64-bit code
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196 LIRDebugInfo info = stateFor(x);
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197 CiValue dividend = force(x.x(), RAX_L); // dividend must be in RAX
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198 CiValue divisor = load(x.y()); // divisor can be in any (other) register
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199
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200 CiValue result = createResultVariable(x);
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201 CiValue resultReg;
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202 if (opcode == Bytecodes.LREM) {
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203 resultReg = RDX_L; // remainder result is produced in rdx
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204 lir.lrem(dividend, divisor, resultReg, LDIV_TMP, info);
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205 } else {
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206 resultReg = RAX_L; // division result is produced in rax
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207 lir.ldiv(dividend, divisor, resultReg, LDIV_TMP, info);
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208 }
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209
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210 lir.move(resultReg, result);
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211 } else if (opcode == Bytecodes.LMUL) {
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212 LIRItem right = new LIRItem(x.y(), this);
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213
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214 // right register is destroyed by the long mul, so it must be
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215 // copied to a new register.
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216 right.setDestroysRegister();
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217
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218 CiValue left = load(x.x());
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219 right.loadItem();
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220
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221 arithmeticOpLong(opcode, LMUL_OUT, left, right.result(), null);
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222 CiValue result = createResultVariable(x);
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223 lir.move(LMUL_OUT, result);
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224 } else {
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225 LIRItem right = new LIRItem(x.y(), this);
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226
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227 CiValue left = load(x.x());
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228 // don't load constants to save register
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229 right.loadNonconstant();
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230 createResultVariable(x);
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231 arithmeticOpLong(opcode, x.operand(), left, right.result(), null);
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232 }
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233 }
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234
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235 public void visitArithmeticOpInt(ArithmeticOp x) {
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236 int opcode = x.opcode;
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237 if (opcode == Bytecodes.IDIV || opcode == Bytecodes.IREM) {
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238 // emit code for integer division or modulus
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239
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240 // Call 'stateFor' before 'force()' because 'stateFor()' may
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241 // force the evaluation of other instructions that are needed for
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242 // correct debug info. Otherwise the live range of the fixed
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243 // register might be too long.
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244 LIRDebugInfo info = stateFor(x);
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245
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246 CiValue dividend = force(x.x(), RAX_I); // dividend must be in RAX
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247 CiValue divisor = load(x.y()); // divisor can be in any (other) register
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248
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249 // idiv and irem use rdx in their implementation so the
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250 // register allocator must not assign it to an interval that overlaps
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251 // this division instruction.
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252 CiRegisterValue tmp = RDX_I;
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253
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254 CiValue result = createResultVariable(x);
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255 CiValue resultReg;
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256 if (opcode == Bytecodes.IREM) {
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257 resultReg = tmp; // remainder result is produced in rdx
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258 lir.irem(dividend, divisor, resultReg, tmp, info);
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259 } else {
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260 resultReg = RAX_I; // division result is produced in rax
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261 lir.idiv(dividend, divisor, resultReg, tmp, info);
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262 }
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263
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264 lir.move(resultReg, result);
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265 } else {
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266 // emit code for other integer operations
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267 LIRItem left = new LIRItem(x.x(), this);
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268 LIRItem right = new LIRItem(x.y(), this);
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269 LIRItem leftArg = left;
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270 LIRItem rightArg = right;
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271 if (x.isCommutative() && left.isStack() && right.isRegisterOrVariable()) {
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272 // swap them if left is real stack (or cached) and right is real register(not cached)
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273 leftArg = right;
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274 rightArg = left;
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275 }
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276
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277 leftArg.loadItem();
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278
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279 // do not need to load right, as we can handle stack and constants
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280 if (opcode == Bytecodes.IMUL) {
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281 // check if we can use shift instead
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diff changeset
282 boolean useConstant = false;
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parents:
diff changeset
283 boolean useTmp = false;
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parents:
diff changeset
284 if (rightArg.result().isConstant()) {
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parents:
diff changeset
285 int iconst = rightArg.instruction.asConstant().asInt();
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diff changeset
286 if (iconst > 0) {
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parents:
diff changeset
287 if (CiUtil.isPowerOf2(iconst)) {
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parents:
diff changeset
288 useConstant = true;
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parents:
diff changeset
289 } else if (CiUtil.isPowerOf2(iconst - 1) || CiUtil.isPowerOf2(iconst + 1)) {
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290 useConstant = true;
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291 useTmp = true;
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292 }
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293 }
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294 }
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diff changeset
295 if (!useConstant) {
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diff changeset
296 rightArg.loadItem();
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297 }
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298 CiValue tmp = ILLEGAL;
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diff changeset
299 if (useTmp) {
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300 tmp = newVariable(CiKind.Int);
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301 }
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diff changeset
302 createResultVariable(x);
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303
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304 arithmeticOpInt(opcode, x.operand(), leftArg.result(), rightArg.result(), tmp);
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diff changeset
305 } else {
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306 createResultVariable(x);
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307 CiValue tmp = ILLEGAL;
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diff changeset
308 arithmeticOpInt(opcode, x.operand(), leftArg.result(), rightArg.result(), tmp);
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309 }
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310 }
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311 }
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312
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313 public void visitArithmeticOpWord(ArithmeticOp x) {
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314 int opcode = x.opcode;
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315 if (opcode == Bytecodes.WDIV || opcode == Bytecodes.WREM || opcode == Bytecodes.WDIVI || opcode == Bytecodes.WREMI) {
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316 // emit code for long division or modulus
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317 // emit inline 64-bit code
2541
0f9eeb15e636 More Value.Flag clean up.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2521
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318 LIRDebugInfo info = stateFor(x);
2507
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319 CiValue dividend = force(x.x(), RAX_L); // dividend must be in RAX
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320 CiValue divisor = load(x.y()); // divisor can be in any (other) register
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321
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322 CiValue result = createResultVariable(x);
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diff changeset
323 CiValue resultReg;
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diff changeset
324 if (opcode == Bytecodes.WREM) {
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325 resultReg = RDX_L; // remainder result is produced in rdx
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parents:
diff changeset
326 lir.wrem(dividend, divisor, resultReg, LDIV_TMP, info);
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diff changeset
327 } else if (opcode == Bytecodes.WREMI) {
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diff changeset
328 resultReg = RDX_L; // remainder result is produced in rdx
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parents:
diff changeset
329 lir.wremi(dividend, divisor, resultReg, LDIV_TMP, info);
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330 } else if (opcode == Bytecodes.WDIV) {
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diff changeset
331 resultReg = RAX_L; // division result is produced in rax
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parents:
diff changeset
332 lir.wdiv(dividend, divisor, resultReg, LDIV_TMP, info);
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parents:
diff changeset
333 } else {
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diff changeset
334 assert opcode == Bytecodes.WDIVI;
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diff changeset
335 resultReg = RAX_L; // division result is produced in rax
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Thomas Wuerthinger <thomas@wuerthinger.net>
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diff changeset
336 lir.wdivi(dividend, divisor, resultReg, LDIV_TMP, info);
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parents:
diff changeset
337 }
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parents:
diff changeset
338
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
339 lir.move(resultReg, result);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
340 } else if (opcode == Bytecodes.LMUL) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
341 LIRItem right = new LIRItem(x.y(), this);
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diff changeset
342
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diff changeset
343 // right register is destroyed by the long mul, so it must be
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diff changeset
344 // copied to a new register.
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diff changeset
345 right.setDestroysRegister();
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diff changeset
346
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diff changeset
347 CiValue left = load(x.x());
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diff changeset
348 right.loadItem();
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diff changeset
349
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diff changeset
350 CiValue reg = LMUL_OUT;
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parents:
diff changeset
351 arithmeticOpLong(opcode, reg, left, right.result(), null);
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parents:
diff changeset
352 CiValue result = createResultVariable(x);
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parents:
diff changeset
353 lir.move(reg, result);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
354 } else {
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parents:
diff changeset
355 LIRItem right = new LIRItem(x.y(), this);
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diff changeset
356
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diff changeset
357 CiValue left = load(x.x());
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
358 // don't load constants to save register
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
359 right.loadNonconstant();
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
360 createResultVariable(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
361 arithmeticOpLong(opcode, x.operand(), left, right.result(), null);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
362 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
363 }
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
364
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
365 @Override
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
366 public void visitArithmeticOp(ArithmeticOp x) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
367 trySwap(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
368
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
369 if (x.kind.isWord() || x.opcode == Bytecodes.WREMI) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
370 visitArithmeticOpWord(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
371 return;
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
372 }
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
373
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
374 assert Util.archKindsEqual(x.x().kind, x.kind) && Util.archKindsEqual(x.y().kind, x.kind) : "wrong parameter types: " + Bytecodes.nameOf(x.opcode);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
375 switch (x.kind) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
376 case Float:
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
377 case Double:
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
378 visitArithmeticOpFloat(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
379 return;
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
380 case Long:
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
381 visitArithmeticOpLong(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
382 return;
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
383 case Int:
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
384 visitArithmeticOpInt(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
385 return;
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
386 }
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
387 throw Util.shouldNotReachHere();
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
388 }
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
389
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
390 @Override
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
391 public void visitShiftOp(ShiftOp x) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
392 // count must always be in rcx
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
393 CiValue count = makeOperand(x.y());
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
394 boolean mustLoadCount = !count.isConstant() || x.kind == CiKind.Long;
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
395 if (mustLoadCount) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
396 // count for long must be in register
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
397 count = force(x.y(), SHIFT_COUNT_IN);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
398 }
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
399
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
400 CiValue value = load(x.x());
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
401 CiValue reg = createResultVariable(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
402
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
403 shiftOp(x.opcode, reg, value, count, ILLEGAL);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
404 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
405
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
406 @Override
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
407 public void visitLogicOp(LogicOp x) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
408 trySwap(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
409
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
410 LIRItem right = new LIRItem(x.y(), this);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
411
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
412 CiValue left = load(x.x());
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
413 right.loadNonconstant();
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
414 CiValue reg = createResultVariable(x);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
415
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
416 logicOp(x.opcode, reg, left, right.result());
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
417 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
418
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
419 private void trySwap(Op2 x) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
420 // (tw) TODO: Check what this is for?
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
421 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
422
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
423 @Override
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
424 public void visitCompareOp(CompareOp x) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
425 LIRItem left = new LIRItem(x.x(), this);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
426 LIRItem right = new LIRItem(x.y(), this);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
427 if (!x.kind.isVoid() && x.x().kind.isLong()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
428 left.setDestroysRegister();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
429 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
430 left.loadItem();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
431 right.loadItem();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
432
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
433 if (x.kind.isVoid()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
434 lir.cmp(Condition.TRUE, left.result(), right.result());
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
435 } else if (x.x().kind.isFloat() || x.x().kind.isDouble()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
436 CiValue reg = createResultVariable(x);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
437 int code = x.opcode;
2677
0ea5f12e873a use com.oracle.max.asm project for assembler
Christian.Wimmer@Oracle.com
parents: 2661
diff changeset
438 lir.fcmp2int(left.result(), right.result(), reg, code == Bytecodes.FCMPL || code == Bytecodes.DCMPL);
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
439 } else if (x.x().kind.isLong() || x.x().kind.isWord()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
440 CiValue reg = createResultVariable(x);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
441 lir.lcmp2int(left.result(), right.result(), reg);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
442 } else {
2697
bd4c3be86fb7 Backend clean up.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents: 2677
diff changeset
443 assert false;
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
444 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
445 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
446
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
447 @Override
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
448 public void visitConvert(Convert x) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
449 CiValue input = load(x.value());
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
450 CiVariable result = newVariable(x.kind);
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
451 // arguments of lirConvert
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
452 GlobalStub globalStub = null;
2677
0ea5f12e873a use com.oracle.max.asm project for assembler
Christian.Wimmer@Oracle.com
parents: 2661
diff changeset
453 // Checkstyle: off
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
454 switch (x.opcode) {
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Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
455 case Bytecodes.F2I: globalStub = stubFor(GlobalStub.Id.f2i); break;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
456 case Bytecodes.F2L: globalStub = stubFor(GlobalStub.Id.f2l); break;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
457 case Bytecodes.D2I: globalStub = stubFor(GlobalStub.Id.d2i); break;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
458 case Bytecodes.D2L: globalStub = stubFor(GlobalStub.Id.d2l); break;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
459 }
2677
0ea5f12e873a use com.oracle.max.asm project for assembler
Christian.Wimmer@Oracle.com
parents: 2661
diff changeset
460 // Checkstyle: on
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
461 if (globalStub != null) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
462 // Force result to be rax to match global stubs expectation.
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
463 CiValue stubResult = x.kind == CiKind.Int ? RAX_I : RAX_L;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
464 lir.convert(x.opcode, input, stubResult, globalStub);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
465 lir.move(stubResult, result);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
466 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
467 lir.convert(x.opcode, input, result, globalStub);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
468 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
469 setResult(x, result);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
470 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
471
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
472 @Override
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
473 public void visitBlockBegin(BlockBegin x) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
474 // nothing to do for now
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
475 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
476
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
477 @Override
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
478 public void visitIf(If x) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
479 CiKind kind = x.x().kind;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
480
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
481 Condition cond = x.condition();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
482
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
483 LIRItem xitem = new LIRItem(x.x(), this);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
484 LIRItem yitem = new LIRItem(x.y(), this);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
485 LIRItem xin = xitem;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
486 LIRItem yin = yitem;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
487
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
488 if (kind.isLong()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
489 // for longs, only conditions "eql", "neq", "lss", "geq" are valid;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
490 // mirror for other conditions
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
491 if (cond == Condition.GT || cond == Condition.LE) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
492 cond = cond.mirror();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
493 xin = yitem;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
494 yin = xitem;
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
495 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
496 xin.setDestroysRegister();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
497 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
498 xin.loadItem();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
499 if (kind.isLong() && yin.result().isConstant() && yin.instruction.asConstant().asLong() == 0 && (cond == Condition.EQ || cond == Condition.NE)) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
500 // dont load item
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
501 } else if (kind.isLong() || kind.isFloat() || kind.isDouble()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
502 // longs cannot handle constants at right side
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
503 yin.loadItem();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
504 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
505
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
506 setNoResult(x);
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
508 CiValue left = xin.result();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
509 CiValue right = yin.result();
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
510 lir.cmp(cond, left, right);
2622
91d3952f7eb7 Framestate work : using stateAFter and reducting the number of nodes with framestates. Intermediate state (does not pass tests)
Gilles Duboscq <gilles.duboscq@oracle.com>
parents: 2616
diff changeset
511 moveToPhi();
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
512 if (x.x().kind.isFloat() || x.x().kind.isDouble()) {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
513 lir.branch(cond, right.kind, x.trueSuccessor(), x.unorderedSuccessor());
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
514 } else {
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
515 lir.branch(cond, right.kind, x.trueSuccessor());
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
516 }
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
517 assert x.defaultSuccessor() == x.falseSuccessor() : "wrong destination above";
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
518 lir.jump(x.defaultSuccessor());
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
519 }
2707
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
520
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
521 @Override
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
522 public void visitExceptionDispatch(ExceptionDispatch x) {
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
523 // TODO ls: this needs some more work...
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
524
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
525 RiType riType = x.handler().handler.catchType();
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
526 assert riType.isResolved();
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
527
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
528 XirArgument obj = toXirArgument(x.exception());
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
529 XirArgument clazz = toXirArgument(riType.getEncoding(Representation.ObjectHub));
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
530 XirSnippet snippet = xir.genInstanceOf(site(x), obj, clazz, riType);
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
531 CiValue result = emitXir(snippet, x, stateFor(x), null, true);
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
532
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
533 lir.cmp(Condition.EQ, result, CiConstant.TRUE);
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
534 lir.branch(Condition.EQ, CiKind.Boolean, x.catchSuccessor());
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
535
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
536 lir.jump(x.otherSuccessor());
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
537 }
7ed72769d51a exception handling related changes:
Lukas Stadler <lukas.stadler@jku.at>
parents: 2677
diff changeset
538
2507
9ec15d6914ca Pull over of compiler from maxine repository.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
diff changeset
539 }