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changeset 10813:3d6bd17da6e1

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fix problem in PEReadEliminationClosure (could lead to unschedulable graph)
author Lukas Stadler <lukas.stadler@jku.at>
date Thu, 18 Jul 2013 17:16:16 +0200
parents dd95ee93c893
children 8b0c8fbbfa1c
files graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/PEReadEliminationClosure.java
diffstat 1 files changed, 3 insertions(+), 2 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/PEReadEliminationClosure.java	Thu Jul 18 17:15:32 2013 +0200
+++ b/graal/com.oracle.graal.virtual/src/com/oracle/graal/virtual/phases/ea/PEReadEliminationClosure.java	Thu Jul 18 17:16:16 2013 +0200
@@ -69,12 +69,13 @@
                 ValueNode object = GraphUtil.unproxify(store.object());
                 ValueNode cachedValue = state.getReadCache(object, store.field());
 
-                if (state.getScalarAlias(store.value()) == cachedValue) {
+                ValueNode value = state.getScalarAlias(store.value());
+                if (value == cachedValue) {
                     effects.deleteFixedNode(store);
                     deleted = true;
                 }
                 state.killReadCache(store.field());
-                state.addReadCache(object, store.field(), store.value());
+                state.addReadCache(object, store.field(), value);
             } else if (node instanceof MemoryCheckpoint.Single) {
                 METRIC_MEMORYCHECKOINT.increment();
                 LocationIdentity identity = ((MemoryCheckpoint.Single) node).getLocationIdentity();