Mercurial > hg > graal-compiler
view graal/com.oracle.graal.hotspot.amd64/src/com/oracle/graal/hotspot/amd64/AMD64HotSpotJumpToExceptionHandlerInCallerOp.java @ 9838:d59af238b0e9
ResolvedJavaType.isAssignableFrom must not be called with null argument
author | Christian Wimmer <christian.wimmer@oracle.com> |
---|---|
date | Tue, 28 May 2013 16:44:25 -0700 |
parents | 7207028ce060 |
children | fbeda9df497d |
line wrap: on
line source
/* * Copyright (c) 2012, 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 static com.oracle.graal.amd64.AMD64.*; import static com.oracle.graal.api.code.ValueUtil.*; import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*; import static com.oracle.graal.lir.LIRInstruction.OperandFlag.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.asm.amd64.*; import com.oracle.graal.asm.amd64.AMD64Assembler.ConditionFlag; import com.oracle.graal.lir.LIRInstruction.Opcode; 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 { @Use(REG) AllocatableValue handlerInCallerPc; @Use(REG) AllocatableValue exception; @Use(REG) AllocatableValue exceptionPc; AMD64HotSpotJumpToExceptionHandlerInCallerOp(AllocatableValue handlerInCallerPc, AllocatableValue exception, AllocatableValue exceptionPc) { this.handlerInCallerPc = handlerInCallerPc; this.exception = exception; this.exceptionPc = exceptionPc; } @Override public void emitCode(TargetMethodAssembler tasm, AMD64MacroAssembler masm) { leaveFrameAndRestoreRbp(tasm, 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. Register thread = graalRuntime().getRuntime().threadRegister(); int isMethodHandleReturnOffset = graalRuntime().getConfig().threadIsMethodHandleReturnOffset; AMD64Address dst = new AMD64Address(thread, isMethodHandleReturnOffset); masm.cmpl(dst, 0); masm.cmovq(ConditionFlag.NotEqual, rsp, rbp); masm.jmp(asRegister(handlerInCallerPc)); } }