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15104
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1 /*
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2 * Copyright (c) 2013, 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 static com.oracle.graal.amd64.AMD64.*;
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26 import static com.oracle.graal.api.code.ValueUtil.*;
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27 import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*;
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28
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29 import com.oracle.graal.api.code.*;
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30 import com.oracle.graal.api.meta.*;
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31 import com.oracle.graal.asm.amd64.*;
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32 import com.oracle.graal.hotspot.*;
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33 import com.oracle.graal.lir.*;
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34 import com.oracle.graal.lir.amd64.*;
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35 import com.oracle.graal.lir.asm.*;
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36
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37 /**
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38 * Pushes an interpreter frame to the stack.
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39 */
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40 @Opcode("PUSH_INTERPRETER_FRAME")
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41 final class AMD64HotSpotPushInterpreterFrameOp extends AMD64LIRInstruction {
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42
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43 @Alive(REG) AllocatableValue frameSize;
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44 @Alive(REG) AllocatableValue framePc;
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45 @Alive(REG) AllocatableValue senderSp;
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46 @Alive(REG) AllocatableValue initialInfo;
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47
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48 AMD64HotSpotPushInterpreterFrameOp(AllocatableValue frameSize, AllocatableValue framePc, AllocatableValue senderSp, AllocatableValue initialInfo) {
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49 this.frameSize = frameSize;
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50 this.framePc = framePc;
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51 this.senderSp = senderSp;
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52 this.initialInfo = initialInfo;
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53 }
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54
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55 @Override
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56 public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) {
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57 final Register frameSizeRegister = asRegister(frameSize);
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58 final Register framePcRegister = asRegister(framePc);
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59 final Register senderSpRegister = asRegister(senderSp);
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60 final Register initialInfoRegister = asRegister(initialInfo);
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61 final HotSpotVMConfig config = HotSpotGraalRuntime.runtime().getConfig();
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62 final int wordSize = HotSpotGraalRuntime.runtime().getTarget().wordSize;
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63
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64 // We'll push PC and BP by hand.
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65 masm.subq(frameSizeRegister, 2 * wordSize);
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66
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67 // Push return address.
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68 masm.push(framePcRegister);
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69
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70 // Prolog
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71 masm.push(initialInfoRegister);
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72 masm.movq(initialInfoRegister, rsp);
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73 masm.subq(rsp, frameSizeRegister);
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74
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75 // This value is corrected by layout_activation_impl.
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76 masm.movptr(new AMD64Address(initialInfoRegister, config.frameInterpreterFrameLastSpOffset * wordSize), 0);
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77
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78 // Make the frame walkable.
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79 masm.movq(new AMD64Address(initialInfoRegister, config.frameInterpreterFrameSenderSpOffset * wordSize), senderSpRegister);
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80 }
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81 }
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