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annotate graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotPatchReturnAddressOp.java @ 21720:d915361cc3a1

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moved asm, bytecode and asm.test code back to com.oracle.graal name space (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Thu, 04 Jun 2015 13:35:47 +0200
parents 6df25b1418be
children 0e095e2c24e2
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1 /*
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2 * Copyright (c) 2012, 2015, 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.hotspot.amd64;
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24
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25 import com.oracle.jvmci.meta.AllocatableValue;
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27 import static com.oracle.jvmci.amd64.AMD64.*;
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28 import static com.oracle.jvmci.code.ValueUtil.*;
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29 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
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31 import com.oracle.graal.asm.amd64.*;
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32 import com.oracle.graal.lir.*;
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33 import com.oracle.graal.lir.amd64.*;
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34 import com.oracle.graal.lir.asm.*;
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35
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36 /**
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37 * Patch the return address of the current frame.
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38 */
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39 @Opcode("PATCH_RETURN")
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40 final class AMD64HotSpotPatchReturnAddressOp extends AMD64LIRInstruction {
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41 public static final LIRInstructionClass<AMD64HotSpotPatchReturnAddressOp> TYPE = LIRInstructionClass.create(AMD64HotSpotPatchReturnAddressOp.class);
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43 @Use(REG) AllocatableValue address;
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45 AMD64HotSpotPatchReturnAddressOp(AllocatableValue address) {
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46 super(TYPE);
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47 this.address = address;
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48 }
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49
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50 @Override
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51 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
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52 int frameSize = crb.frameMap.frameSize();
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53 masm.movq(new AMD64Address(rsp, frameSize), asRegister(address));
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54 }
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55 }