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comparison graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/HotSpotDebugInfoBuilder.java @ 8586:82f6a25321b8

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modeling of lock state removed from LIR and runtime specific debug info for locks moved into runtime specific classes
author Doug Simon <doug.simon@oracle.com>
date Fri, 29 Mar 2013 12:31:42 +0100
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children b5eff8bd82da
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8585:aaf3988bd1b4 8586:82f6a25321b8
1 /*
2 * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23 package com.oracle.graal.hotspot;
24
25 import com.oracle.graal.api.code.*;
26 import com.oracle.graal.api.meta.*;
27 import com.oracle.graal.compiler.gen.*;
28 import com.oracle.graal.graph.*;
29 import com.oracle.graal.nodes.*;
30 import com.oracle.graal.nodes.virtual.*;
31
32 /**
33 * Extends {@link DebugInfoBuilder} to allocate the extra debug information required for locks.
34 */
35 public class HotSpotDebugInfoBuilder extends DebugInfoBuilder {
36
37 private final HotSpotLockStack lockStack;
38
39 public HotSpotDebugInfoBuilder(NodeMap<Value> nodeOperands, HotSpotLockStack lockStack) {
40 super(nodeOperands);
41 this.lockStack = lockStack;
42 }
43
44 public HotSpotLockStack lockStack() {
45 return lockStack;
46 }
47
48 @Override
49 protected Value computeLockValue(FrameState state, int i) {
50 int lockDepth = i;
51 for (FrameState outer = state.outerFrameState(); outer != null; outer = outer.outerFrameState()) {
52 lockDepth += outer.locksSize();
53 }
54 StackSlot slot = lockStack.makeLockSlot(lockDepth);
55 ValueNode lock = state.lockAt(i);
56 Value object = toValue(lock);
57 boolean eliminated = lock instanceof VirtualObjectNode;
58 return new MonitorValue(object, slot, eliminated);
59 }
60 }