Mercurial > hg > graal-compiler
view graal/GraalCompiler/src/com/sun/c1x/lir/LIRCompareAndSwap.java @ 2707:7ed72769d51a
exception handling related changes:
* changed blockPredecessors to list of Instructions, instead of Blocks
* removed explicit predecessor management in BlockBegin, now using predecessors from Graph structure
* replaced generated LIR exception entries with exception dispatch chains in IR
* added Unwind and ExceptionDispatch instructions
* removed ExceptionEntry flag in BlockBegin and all code depending on it
* removed exceptionHandler list from Instruction, replaced by exception Edge on Invoke and Throw
* replaced list of ExceptionHandlers with single exception edge in debug info
misc:
* changed GraphvizPrinter layout (smaller ports on large nodes)
* removed defunct run config
author | Lukas Stadler <lukas.stadler@jku.at> |
---|---|
date | Wed, 18 May 2011 18:09:20 +0200 |
parents | 16b9a8b5ad39 |
children |
line wrap: on
line source
/* * Copyright (c) 2009, 2011, 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.sun.c1x.lir; import com.sun.cri.ci.*; /** * The {@code LIRCompareAndSwap} class definition. * * @author Marcelo Cintra * */ public class LIRCompareAndSwap extends LIRInstruction { /** * Constructs a new LIRCompareAndSwap instruction. * @param addr * @param expectedValue * @param newValue */ public LIRCompareAndSwap(LIROpcode opcode, CiValue addr, CiValue expectedValue, CiValue newValue) { super(opcode, CiValue.IllegalValue, null, false, 0, 0, addr, expectedValue, newValue); } /** * Gets the address of compare and swap. * * @return the address */ public CiValue address() { return operand(0); } /** * Gets the cmpValue of this class. * * @return the cmpValue */ public CiValue expectedValue() { return operand(1); } /** * Gets the newValue of this class. * * @return the newValue */ public CiValue newValue() { return operand(2); } /** * Emits target assembly code for this instruction. * * @param masm the target assembler */ @Override public void emitCode(LIRAssembler masm) { masm.emitCompareAndSwap(this); } }