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annotate graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64Compare.java @ 13227:1a66453f73db

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renamed TargetMethodAssembler to CompilationResultBuilder
author Doug Simon <doug.simon@oracle.com>
date Tue, 03 Dec 2013 10:51:16 +0100
parents fbeda9df497d
children ce73694346b2
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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.graal.api.code.ValueUtil.*;
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26 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
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27
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28 import com.oracle.graal.api.meta.*;
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29 import com.oracle.graal.asm.amd64.*;
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30 import com.oracle.graal.graph.*;
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31 import com.oracle.graal.lir.*;
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32 import com.oracle.graal.lir.asm.*;
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33
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34 // @formatter:off
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35 public enum AMD64Compare {
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36 ICMP, LCMP, ACMP, FCMP, DCMP;
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37
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38 public static class CompareOp extends AMD64LIRInstruction {
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39 @Opcode private final AMD64Compare opcode;
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40 @Use({REG}) protected Value x;
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41 @Use({REG, STACK, CONST}) protected Value y;
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42
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43 public CompareOp(AMD64Compare opcode, Value x, Value y) {
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44 this.opcode = opcode;
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45 this.x = x;
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46 this.y = y;
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47 }
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48
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49 @Override
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50 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
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51 emit(crb, masm, opcode, x, y);
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52 }
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53
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54 @Override
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55 protected void verify() {
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56 super.verify();
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57 assert (name().startsWith("I") && x.getKind() == Kind.Int && y.getKind().getStackKind() == Kind.Int)
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58 || (name().startsWith("L") && x.getKind() == Kind.Long && y.getKind() == Kind.Long)
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59 || (name().startsWith("A") && x.getKind() == Kind.Object && y.getKind() == Kind.Object)
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60 || (name().startsWith("F") && x.getKind() == Kind.Float && y.getKind() == Kind.Float)
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61 || (name().startsWith("D") && x.getKind() == Kind.Double && y.getKind() == Kind.Double);
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62 }
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63 }
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64
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65 public static void emit(CompilationResultBuilder crb, AMD64MacroAssembler masm, AMD64Compare opcode, Value x, Value y) {
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66 if (isRegister(y)) {
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67 switch (opcode) {
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68 case ICMP: masm.cmpl(asIntReg(x), asIntReg(y)); break;
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69 case LCMP: masm.cmpq(asLongReg(x), asLongReg(y)); break;
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70 case ACMP: masm.cmpptr(asObjectReg(x), asObjectReg(y)); break;
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71 case FCMP: masm.ucomiss(asFloatReg(x), asFloatReg(y)); break;
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72 case DCMP: masm.ucomisd(asDoubleReg(x), asDoubleReg(y)); break;
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73 default: throw GraalInternalError.shouldNotReachHere();
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74 }
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75 } else if (isConstant(y)) {
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76 switch (opcode) {
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77 case ICMP: masm.cmpl(asIntReg(x), crb.asIntConst(y)); break;
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78 case LCMP: masm.cmpq(asLongReg(x), crb.asIntConst(y)); break;
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79 case ACMP:
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80 if (((Constant) y).isNull()) {
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81 masm.cmpq(asObjectReg(x), 0); break;
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82 } else {
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83 throw GraalInternalError.shouldNotReachHere("Only null object constants are allowed in comparisons");
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84 }
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85 case FCMP: masm.ucomiss(asFloatReg(x), (AMD64Address) crb.asFloatConstRef(y)); break;
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86 case DCMP: masm.ucomisd(asDoubleReg(x), (AMD64Address) crb.asDoubleConstRef(y)); break;
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87 default: throw GraalInternalError.shouldNotReachHere();
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88 }
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89 } else {
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90 switch (opcode) {
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91 case ICMP: masm.cmpl(asIntReg(x), (AMD64Address) crb.asIntAddr(y)); break;
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92 case LCMP: masm.cmpq(asLongReg(x), (AMD64Address) crb.asLongAddr(y)); break;
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93 case ACMP: masm.cmpptr(asObjectReg(x), (AMD64Address) crb.asObjectAddr(y)); break;
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94 case FCMP: masm.ucomiss(asFloatReg(x), (AMD64Address) crb.asFloatAddr(y)); break;
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95 case DCMP: masm.ucomisd(asDoubleReg(x), (AMD64Address) crb.asDoubleAddr(y)); break;
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96 default: throw GraalInternalError.shouldNotReachHere();
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97 }
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98 }
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99 }
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100 }