Mercurial > hg > truffle
view graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotDebugInfoBuilder.java @ 21082:266eef1c29e0
Mark locks without MonitorIdNode as eliminated
author | Tom Rodriguez <tom.rodriguez@oracle.com> |
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date | Wed, 22 Apr 2015 11:38:25 -0700 |
parents | ae5710f20011 |
children | 4d25c6f34a7d |
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/* * Copyright (c) 2013, 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; import static com.oracle.graal.api.code.BytecodeFrame.*; import com.oracle.graal.api.code.*; import com.oracle.graal.api.meta.*; import com.oracle.graal.compiler.gen.*; import com.oracle.graal.graph.*; import com.oracle.graal.nodes.*; /** * Extends {@link DebugInfoBuilder} to allocate the extra debug information required for locks. */ public class HotSpotDebugInfoBuilder extends DebugInfoBuilder { private final HotSpotLockStack lockStack; public HotSpotDebugInfoBuilder(NodeMap<Value> nodeOperands, HotSpotLockStack lockStack) { super(nodeOperands); this.lockStack = lockStack; } public HotSpotLockStack lockStack() { return lockStack; } @Override protected Value computeLockValue(FrameState state, int lockIndex) { int lockDepth = lockIndex; if (state.outerFrameState() != null) { lockDepth += state.outerFrameState().nestedLockDepth(); } StackSlotValue slot = lockStack.makeLockSlot(lockDepth); ValueNode lock = state.lockAt(lockIndex); Value object = toValue(lock); boolean eliminated = object instanceof VirtualObject || state.monitorIdAt(lockIndex) == null; assert state.monitorIdAt(lockIndex) == null || state.monitorIdAt(lockIndex).getLockDepth() == lockDepth; return new StackLockValue(object, slot, eliminated); } @Override protected BytecodeFrame computeFrameForState(FrameState state) { assert !isPlaceholderBci(state.bci) || state.bci == BytecodeFrame.BEFORE_BCI : state.bci; return super.computeFrameForState(state); } }