Mercurial > hg > graal-jvmci-8
view graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotJumpToExceptionHandlerInCallerOp.java @ 22272:b6d504612b3f
fix HotSpotConstantPool#lookupConstant for pseudo-string entries
author | Andreas Woess <andreas.woess@oracle.com> |
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date | Tue, 21 Jul 2015 14:55:47 +0200 |
parents | 0e095e2c24e2 |
children | 24db9b5a9f04 |
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/* * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.oracle.graal.hotspot.amd64; import jdk.internal.jvmci.code.*; import jdk.internal.jvmci.meta.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import static jdk.internal.jvmci.amd64.AMD64.*; import static jdk.internal.jvmci.code.ValueUtil.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.asm.amd64.AMD64Assembler.*; import com.oracle.graal.lir.*; import com.oracle.graal.lir.StandardOp.BlockEndOp; import com.oracle.graal.lir.asm.*; /** * Sets up the arguments for an exception handler in the callers frame, removes the current frame * and jumps to the handler. */ @Opcode("JUMP_TO_EXCEPTION_HANDLER_IN_CALLER") final class AMD64HotSpotJumpToExceptionHandlerInCallerOp extends AMD64HotSpotEpilogueOp implements BlockEndOp { public static final LIRInstructionClass<AMD64HotSpotJumpToExceptionHandlerInCallerOp> TYPE = LIRInstructionClass.create(AMD64HotSpotJumpToExceptionHandlerInCallerOp.class); @Use(REG) AllocatableValue handlerInCallerPc; @Use(REG) AllocatableValue exception; @Use(REG) AllocatableValue exceptionPc; private final Register thread; private final int isMethodHandleReturnOffset; AMD64HotSpotJumpToExceptionHandlerInCallerOp(AllocatableValue handlerInCallerPc, AllocatableValue exception, AllocatableValue exceptionPc, int isMethodHandleReturnOffset, Register thread, AllocatableValue savedRbp) { super(TYPE, savedRbp); this.handlerInCallerPc = handlerInCallerPc; this.exception = exception; this.exceptionPc = exceptionPc; this.isMethodHandleReturnOffset = isMethodHandleReturnOffset; this.thread = thread; } @Override public void emitCode(CompilationResultBuilder crb, AMD64MacroAssembler masm) { leaveFrameAndRestoreRbp(crb, masm); // Discard the return address, thus completing restoration of caller frame masm.incrementq(rsp, 8); // Restore rsp from rbp if the exception PC is a method handle call site. AMD64Address dst = new AMD64Address(thread, isMethodHandleReturnOffset); masm.cmpl(dst, 0); masm.cmovq(ConditionFlag.NotEqual, rsp, rbp); masm.jmp(asRegister(handlerInCallerPc)); } }