Mercurial > hg > graal-compiler
view graal/GraalCompiler/src/com/sun/c1x/lir/LIRDebugInfo.java @ 2677:0ea5f12e873a
use com.oracle.max.asm project for assembler
author | Christian.Wimmer@Oracle.com |
---|---|
date | Fri, 13 May 2011 17:09:20 -0700 |
parents | 16b9a8b5ad39 |
children | 7ed72769d51a |
line wrap: on
line source
/* * Copyright (c) 2009, 2010, 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 java.util.*; import com.sun.c1x.*; import com.sun.c1x.ir.*; import com.sun.c1x.value.*; import com.sun.cri.ci.*; /** * This class represents debugging and deoptimization information attached to a LIR instruction. * * @author Marcelo Cintra * @author Thomas Wuerthinger * @author Ben L. Titzer */ public class LIRDebugInfo { public abstract static class ValueLocator { public abstract CiValue getLocation(Value value); } public final FrameState state; public final List<ExceptionHandler> exceptionHandlers; public CiDebugInfo debugInfo; public LIRDebugInfo(FrameState state, List<ExceptionHandler> exceptionHandlers) { assert state != null; this.state = state; this.exceptionHandlers = exceptionHandlers; } private LIRDebugInfo(LIRDebugInfo info) { this.state = info.state; // deep copy of exception handlers if (info.exceptionHandlers != null) { this.exceptionHandlers = new ArrayList<ExceptionHandler>(info.exceptionHandlers.size()); for (ExceptionHandler h : info.exceptionHandlers) { this.exceptionHandlers.add(new ExceptionHandler(h)); } } else { this.exceptionHandlers = null; } } public LIRDebugInfo copy() { return new LIRDebugInfo(this); } public void setOop(CiValue location, C1XCompilation compilation, CiBitMap frameRefMap, CiBitMap regRefMap) { CiTarget target = compilation.target; if (location.isAddress()) { CiAddress stackLocation = (CiAddress) location; assert stackLocation.index.isIllegal(); if (stackLocation.base == CiRegister.Frame.asValue()) { int offset = stackLocation.displacement; assert offset % target.wordSize == 0 : "must be aligned"; int stackMapIndex = offset / target.wordSize; setBit(frameRefMap, stackMapIndex); } } else if (location.isStackSlot()) { CiStackSlot stackSlot = (CiStackSlot) location; assert !stackSlot.inCallerFrame(); assert target.spillSlotSize == target.wordSize; setBit(frameRefMap, stackSlot.index()); } else { assert location.isRegister() : "objects can only be in a register"; CiRegisterValue registerLocation = (CiRegisterValue) location; int reg = registerLocation.reg.number; assert reg >= 0 : "object cannot be in non-object register " + registerLocation.reg; assert reg < target.arch.registerReferenceMapBitCount; setBit(regRefMap, reg); } } public CiDebugInfo debugInfo() { assert debugInfo != null : "debug info not allocated yet"; return debugInfo; } public boolean hasDebugInfo() { return debugInfo != null; } public static void setBit(CiBitMap refMap, int bit) { assert !refMap.get(bit) : "Ref map entry " + bit + " is already set."; refMap.set(bit); } @Override public String toString() { return state.toString(); } }