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annotate graal/com.oracle.graal.hotspot.sparc/src/com/oracle/graal/hotspot/sparc/SPARCHotSpotJumpToExceptionHandlerInCallerOp.java @ 19530:863c42893cc4

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[SPARC] Fix SPARCHotSpotJumpToExceptionHandlerInCallerOp and SPARCAllocatorTest
author Stefan Anzinger <stefan.anzinger@oracle.com>
date Sat, 21 Feb 2015 22:26:55 +0100
parents 8fc336a04d77
children 96ab2078eeaf
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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.sparc;
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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 import static com.oracle.graal.sparc.SPARC.*;
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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.sparc.*;
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32 import com.oracle.graal.asm.sparc.SPARCAssembler.CC;
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33 import com.oracle.graal.asm.sparc.SPARCAssembler.ConditionFlag;
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34 import com.oracle.graal.asm.sparc.SPARCAssembler.Jmpl;
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35 import com.oracle.graal.asm.sparc.SPARCAssembler.Lduw;
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36 import com.oracle.graal.asm.sparc.SPARCAssembler.Movcc;
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37 import com.oracle.graal.asm.sparc.SPARCMacroAssembler.Cmp;
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38 import com.oracle.graal.asm.sparc.SPARCMacroAssembler.Nop;
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39 import com.oracle.graal.lir.*;
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40 import com.oracle.graal.lir.asm.*;
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41 import com.oracle.graal.sparc.*;
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42
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43 /**
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44 * Sets up the arguments for an exception handler in the callers frame, removes the current frame
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45 * and jumps to the handler.
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46 */
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47 @Opcode("JUMP_TO_EXCEPTION_HANDLER_IN_CALLER")
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48 final class SPARCHotSpotJumpToExceptionHandlerInCallerOp extends SPARCHotSpotEpilogueOp {
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49
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50 public static final LIRInstructionClass<SPARCHotSpotJumpToExceptionHandlerInCallerOp> TYPE = LIRInstructionClass.create(SPARCHotSpotJumpToExceptionHandlerInCallerOp.class);
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51
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52 @Use(REG) AllocatableValue handlerInCallerPc;
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53 @Use(REG) AllocatableValue exception;
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54 @Use(REG) AllocatableValue exceptionPc;
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55 private final Register thread;
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56 private final int isMethodHandleReturnOffset;
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57
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58 SPARCHotSpotJumpToExceptionHandlerInCallerOp(AllocatableValue handlerInCallerPc, AllocatableValue exception, AllocatableValue exceptionPc, int isMethodHandleReturnOffset, Register thread) {
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59 super(TYPE);
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60 this.handlerInCallerPc = handlerInCallerPc;
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61 this.exception = exception;
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62 this.exceptionPc = exceptionPc;
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63 this.isMethodHandleReturnOffset = isMethodHandleReturnOffset;
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64 this.thread = thread;
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65 }
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66
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67 @Override
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68 public void emitCode(CompilationResultBuilder crb, SPARCMacroAssembler masm) {
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69 // Move the values up one level to be the input for the next call.
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70 new SPARCMacroAssembler.Mov(asRegister(handlerInCallerPc), i2).emit(masm);
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71 new SPARCMacroAssembler.Mov(asRegister(exception), i0).emit(masm);
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72 new SPARCMacroAssembler.Mov(asRegister(exceptionPc), i1).emit(masm);
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73 leaveFrame(crb);
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74
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75 // Restore SP from L7 if the exception PC is a method handle call site.
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76 SPARCAddress dst = new SPARCAddress(thread, isMethodHandleReturnOffset);
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77 try (SPARCScratchRegister scratch = SPARCScratchRegister.get()) {
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78 Register scratchReg = scratch.getRegister();
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79 new Lduw(dst, scratchReg).emit(masm);
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80 new Cmp(scratchReg, scratchReg).emit(masm);
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81 new Movcc(ConditionFlag.NotZero, CC.Icc, l7, sp).emit(masm);
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82 }
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83
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84 new Jmpl(asRegister(handlerInCallerPc), 0, g0).emit(masm);
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85 new Nop().emit(masm);
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86 }
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87 }