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annotate graal/com.oracle.graal.lir.amd64/src/com/oracle/graal/lir/amd64/AMD64TestMemoryOp.java @ 19575:b017118b412b

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Ensure a canonical ordering of inputs for commutative binary operations
author Tom Rodriguez <tom.rodriguez@oracle.com>
date Wed, 18 Feb 2015 10:36:31 -0800
parents 35ae3e916582
children 8fc336a04d77
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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.compiler.common.*;
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31 import com.oracle.graal.lir.*;
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32 import com.oracle.graal.lir.amd64.AMD64Move.MemOp;
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33 import com.oracle.graal.lir.asm.*;
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34
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35 public class AMD64TestMemoryOp extends MemOp {
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36
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37 @Use({REG, CONST}) protected Value y;
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38
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39 public AMD64TestMemoryOp(Kind kind, AMD64AddressValue x, Value y, LIRFrameState state) {
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40 super(kind, x, state);
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41 this.y = y;
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42 this.state = state;
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43 }
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44
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45 @Override
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46 public void emitMemAccess(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
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47 if (isRegister(y)) {
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48 switch (kind) {
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49 case Int:
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50 masm.testl(asIntReg(y), address.toAddress());
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51 break;
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52 case Long:
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53 masm.testq(asLongReg(y), address.toAddress());
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54 break;
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55 default:
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56 throw GraalInternalError.shouldNotReachHere();
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57 }
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58 } else if (isConstant(y)) {
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59 switch (kind) {
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60 case Int:
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61 masm.testl(address.toAddress(), crb.asIntConst(y));
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62 break;
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63 case Long:
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64 masm.testq(address.toAddress(), crb.asIntConst(y));
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65 break;
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66 default:
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67 throw GraalInternalError.shouldNotReachHere();
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68 }
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69 } else {
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70 throw GraalInternalError.shouldNotReachHere();
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71 }
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72 }
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73
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74 @Override
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75 public void verify() {
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76 super.verify();
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77 assert (kind == Kind.Int || kind == Kind.Long) && kind == y.getKind() : address + " " + y;
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78 }
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79 }