Mercurial > hg > truffle

annotate graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/FrameStateAssignmentPhase.java @ 15468:43b3dbfa367d

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
small cosmetic fix in GraphUtil
author Lukas Stadler <lukas.stadler@oracle.com>
date Fri, 02 May 2014 12:02:27 +0200
parents 4e3c2247daf4
children 9129a2237dd8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
1 /*
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
2 * Copyright (c) 2013, 2013, Oracle and/or its affiliates. All rights reserved.
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
4 *
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
5 * This code is free software; you can redistribute it and/or modify it
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
6 * under the terms of the GNU General Public License version 2 only, as
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
7 * published by the Free Software Foundation.
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
8 *
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
9 * This code is distributed in the hope that it will be useful, but WITHOUT
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
12 * version 2 for more details (a copy is included in the LICENSE file that
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
13 * accompanied this code).
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
14 *
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
15 * You should have received a copy of the GNU General Public License version
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
16 * 2 along with this work; if not, write to the Free Software Foundation,
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
18 *
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
20 * or visit www.oracle.com if you need additional information or have any
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
21 * questions.
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
22 */
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
23 package com.oracle.graal.phases.common;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
24
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
25 import java.util.*;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
26
15193
96bb07a5d667 Spit up and move GraalInternalError.
Josef Eisl <josef.eisl@jku.at>
parents: 15145
diff changeset
27 import com.oracle.graal.compiler.common.*;
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
28 import com.oracle.graal.graph.*;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
29 import com.oracle.graal.graph.iterators.*;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
30 import com.oracle.graal.nodes.*;
11626
340e67bf1758 Rename GuardsPhase to GuardsStage to avoid confusion with existing Phases
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11579
diff changeset
31 import com.oracle.graal.nodes.StructuredGraph.GuardsStage;
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
32 import com.oracle.graal.nodes.util.*;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
33 import com.oracle.graal.phases.*;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
34 import com.oracle.graal.phases.graph.*;
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
35 import com.oracle.graal.phases.graph.ReentrantNodeIterator.NodeIteratorClosure;
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
36
11627
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
37 /**
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
38 * This phase transfers {@link FrameState} nodes from {@link StateSplit} nodes to
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
39 * {@link DeoptimizingNode DeoptimizingNodes}.
14941
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
40 *
11627
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
41 * This allow to enter the {@link GuardsStage#AFTER_FSA AFTER_FSA} stage of the graph where no new
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
42 * node that may cause deoptimization can be introduced anymore.
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
43 * <p>
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
44 * This Phase processes the graph in post order, assigning the {@link FrameState} from the last
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
45 * {@link StateSplit} node to {@link DeoptimizingNode DeoptimizingNodes}.
1ca5e39d0433 Add javadoc to GuardsStage and FrameStateAssignmentPhase
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11626
diff changeset
46 */
8983
6c4ac1a8cd20 Run dead code elimination after framestate assignment
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 8957
diff changeset
47 public class FrameStateAssignmentPhase extends Phase {
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
48
9730
d58ebf85443e spelling fix
Doug Simon <doug.simon@oracle.com>
parents: 9633
diff changeset
49 private static class FrameStateAssignmentClosure extends NodeIteratorClosure<FrameState> {
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
50
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
51 @Override
14941
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
52 protected FrameState processNode(FixedNode node, FrameState previousState) {
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
53 FrameState currentState = previousState;
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
54 if (node instanceof DeoptimizingNode.DeoptBefore) {
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
55 DeoptimizingNode.DeoptBefore deopt = (DeoptimizingNode.DeoptBefore) node;
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
56 if (deopt.canDeoptimize() && deopt.stateBefore() == null) {
9878
d0a007fb65af simplify FrameStateAssignmentPhase, add guarantee that every DeoptimizingNode has a FrameState
Lukas Stadler <lukas.stadler@jku.at>
parents: 9730
diff changeset
57 GraalInternalError.guarantee(currentState != null, "no FrameState at DeoptimizingNode %s", deopt);
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
58 deopt.setStateBefore(currentState);
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
59 }
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
60 }
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
61
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
62 if (node instanceof StateSplit) {
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
63 StateSplit stateSplit = (StateSplit) node;
14536
b3937b8b9ae1 tiny change in FrameStateAssignmentPhase
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13283
diff changeset
64 FrameState stateAfter = stateSplit.stateAfter();
b3937b8b9ae1 tiny change in FrameStateAssignmentPhase
Lukas Stadler <lukas.stadler@oracle.com>
parents: 13283
diff changeset
65 if (stateAfter != null) {
14941
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
66 currentState = stateAfter;
9633
5207bb46598e simplify "clever" code in FrameStateAssignmentPhase
Lukas Stadler <lukas.stadler@jku.at>
parents: 9624
diff changeset
67 stateSplit.setStateAfter(null);
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
68 }
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
69 }
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
70
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
71 if (node instanceof DeoptimizingNode.DeoptDuring) {
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
72 DeoptimizingNode.DeoptDuring deopt = (DeoptimizingNode.DeoptDuring) node;
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
73 if (deopt.canDeoptimize()) {
14941
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
74 GraalInternalError.guarantee(currentState != null, "no FrameState at DeoptimizingNode %s", deopt);
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
75 deopt.computeStateDuring(currentState);
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
76 }
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
77 }
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
78
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
79 if (node instanceof DeoptimizingNode.DeoptAfter) {
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
80 DeoptimizingNode.DeoptAfter deopt = (DeoptimizingNode.DeoptAfter) node;
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
81 if (deopt.canDeoptimize() && deopt.stateAfter() == null) {
14941
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
82 GraalInternalError.guarantee(currentState != null, "no FrameState at DeoptimizingNode %s", deopt);
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
83 deopt.setStateAfter(currentState);
14734
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
84 }
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
85 }
6ae9af961b7c Introduce separate interfaces for deoptimizing nodes that deopt to a state before, during or after their execution.
Roland Schatz <roland.schatz@oracle.com>
parents: 14536
diff changeset
86
14941
8c3d77087894 Code cleanup in FrameStateAssignmentPhase.
Roland Schatz <roland.schatz@oracle.com>
parents: 14734
diff changeset
87 return currentState;
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
88 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
89
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
90 @Override
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
91 protected FrameState merge(MergeNode merge, List<FrameState> states) {
9878
d0a007fb65af simplify FrameStateAssignmentPhase, add guarantee that every DeoptimizingNode has a FrameState
Lukas Stadler <lukas.stadler@jku.at>
parents: 9730
diff changeset
92 return merge.stateAfter() != null ? merge.stateAfter() : singleFrameState(merge, states);
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
93 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
94
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
95 @Override
15145
df2ef5204f2b Remove AbstractBeginNode, move the framestate from AbstractBeginNode to BeginStateSplitNode.
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 14941
diff changeset
96 protected FrameState afterSplit(BeginNode node, FrameState oldState) {
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
97 return oldState;
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
98 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
99
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
100 @Override
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
101 protected Map<LoopExitNode, FrameState> processLoop(LoopBeginNode loop, FrameState initialState) {
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
102 return ReentrantNodeIterator.processLoop(this, loop, initialState).exitStates;
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
103 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
104 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
105
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
106 @Override
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
107 protected void run(StructuredGraph graph) {
13283
17c9afa0bfcb Allow GuardLoweringPhase, FrameStateAssignementPhase and the different lowerings to work with graph at any valid guards stage
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11705
diff changeset
108 assert graph.getGuardsStage().ordinal() >= GuardsStage.FIXED_DEOPTS.ordinal() && checkFixedDeopts(graph);
17c9afa0bfcb Allow GuardLoweringPhase, FrameStateAssignementPhase and the different lowerings to work with graph at any valid guards stage
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11705
diff changeset
109 if (graph.getGuardsStage().ordinal() < GuardsStage.AFTER_FSA.ordinal()) {
15467
4e3c2247daf4 simplify ReentrantNodeIterator
Lukas Stadler <lukas.stadler@oracle.com>
parents: 15193
diff changeset
110 ReentrantNodeIterator.apply(new FrameStateAssignmentClosure(), graph.start(), null);
13283
17c9afa0bfcb Allow GuardLoweringPhase, FrameStateAssignementPhase and the different lowerings to work with graph at any valid guards stage
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11705
diff changeset
111 graph.setGuardsStage(GuardsStage.AFTER_FSA);
17c9afa0bfcb Allow GuardLoweringPhase, FrameStateAssignementPhase and the different lowerings to work with graph at any valid guards stage
Gilles Duboscq <duboscq@ssw.jku.at>
parents: 11705
diff changeset
112 }
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
113 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
114
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
115 private static boolean checkFixedDeopts(StructuredGraph graph) {
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
116 NodePredicate isFloatingNode = GraphUtil.isFloatingNode();
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
117 for (Node n : graph.getNodes().filterInterface(DeoptimizingNode.class)) {
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
118 if (((DeoptimizingNode) n).canDeoptimize() && isFloatingNode.apply(n)) {
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
119 return false;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
120 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
121 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
122 return true;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
123 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
124
9624
87eafaddf9d9 let ReentrantBlockIterator.processBlock return the next state
Lukas Stadler <lukas.stadler@jku.at>
parents: 9387
diff changeset
125 private static FrameState singleFrameState(@SuppressWarnings("unused") MergeNode merge, List<FrameState> states) {
9878
d0a007fb65af simplify FrameStateAssignmentPhase, add guarantee that every DeoptimizingNode has a FrameState
Lukas Stadler <lukas.stadler@jku.at>
parents: 9730
diff changeset
126 FrameState singleState = states.get(0);
9381
addc2a25d727 Implement merging of frame states if they differ at a merge that does not have its own frame state.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 8983
diff changeset
127 for (int i = 1; i < states.size(); ++i) {
9878
d0a007fb65af simplify FrameStateAssignmentPhase, add guarantee that every DeoptimizingNode has a FrameState
Lukas Stadler <lukas.stadler@jku.at>
parents: 9730
diff changeset
128 if (states.get(i) != singleState) {
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
129 return null;
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
130 }
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
131 }
9878
d0a007fb65af simplify FrameStateAssignmentPhase, add guarantee that every DeoptimizingNode has a FrameState
Lukas Stadler <lukas.stadler@jku.at>
parents: 9730
diff changeset
132 return singleState;
9381
addc2a25d727 Implement merging of frame states if they differ at a merge that does not have its own frame state.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents: 8983
diff changeset
133 }
8957
1af9b5d75139 Move framestate assignement to the hir
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
diff changeset
134 }