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changeset 21585:453284d62d64

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Fix a bug in the dominator based conditional elimination.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Fri, 29 May 2015 10:52:21 +0200
parents a004616f72e5
children 6da76343d830
files graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/DominatorConditionalEliminationPhase.java
diffstat 1 files changed, 6 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/DominatorConditionalEliminationPhase.java	Fri May 29 09:08:21 2015 +0200
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/DominatorConditionalEliminationPhase.java	Fri May 29 10:52:21 2015 +0200
@@ -243,8 +243,12 @@
                 survivingSuccessor.replaceAtPredecessor(null);
                 node.replaceAtPredecessor(survivingSuccessor);
                 GraphUtil.killCFG(node);
-                if (survivingSuccessor.isAlive() && survivingSuccessor instanceof BeginNode) {
-                    undoOperations.add(() -> ((BeginNode) survivingSuccessor).trySimplify());
+                if (survivingSuccessor instanceof BeginNode) {
+                    undoOperations.add(() -> {
+                        if (survivingSuccessor.isAlive()) {
+                            ((BeginNode) survivingSuccessor).trySimplify();
+                        }
+                    });
                 }
                 return true;
             });