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changeset 5703:05c5f68e23d5

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Fix some If probabilities in graph builder
author Gilles Duboscq <duboscq@ssw.jku.at>
date Wed, 27 Jun 2012 14:15:16 +0200
parents 62f1b4b8de5c
children 0a249ed5566a
files graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPhase.java
diffstat 1 files changed, 3 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPhase.java	Tue Jun 26 16:54:58 2012 +0200
+++ b/graal/com.oracle.graal.java/src/com/oracle/graal/java/GraphBuilderPhase.java	Wed Jun 27 14:15:16 2012 +0200
@@ -653,7 +653,7 @@
         } else {
             BlockPlaceholderNode successor = currentGraph.add(new BlockPlaceholderNode());
             DeoptimizeNode deopt = currentGraph.add(new DeoptimizeNode(DeoptimizationAction.InvalidateRecompile, DeoptimizationReason.Unresolved, graphId));
-            IfNode ifNode = currentGraph.add(new IfNode(currentGraph.unique(new IsNullNode(object)), successor, deopt, 0, graphId));
+            IfNode ifNode = currentGraph.add(new IfNode(currentGraph.unique(new IsNullNode(object)), successor, deopt, 1, graphId));
             append(ifNode);
             lastInstr = successor;
             frameState.ipush(appendConstant(Constant.INT_0));
@@ -757,7 +757,7 @@
     private void emitNullCheck(ValueNode receiver) {
         BlockPlaceholderNode trueSucc = currentGraph.add(new BlockPlaceholderNode());
         BlockPlaceholderNode falseSucc = currentGraph.add(new BlockPlaceholderNode());
-        IfNode ifNode = currentGraph.add(new IfNode(currentGraph.unique(new IsNullNode(receiver)), trueSucc, falseSucc, 1, graphId));
+        IfNode ifNode = currentGraph.add(new IfNode(currentGraph.unique(new IsNullNode(receiver)), trueSucc, falseSucc, 0.5, graphId));
 
         append(ifNode);
         lastInstr = falseSucc;
@@ -776,7 +776,7 @@
     private void emitBoundsCheck(ValueNode index, ValueNode length) {
         BlockPlaceholderNode trueSucc = currentGraph.add(new BlockPlaceholderNode());
         BlockPlaceholderNode falseSucc = currentGraph.add(new BlockPlaceholderNode());
-        IfNode ifNode = currentGraph.add(new IfNode(currentGraph.unique(new IntegerBelowThanNode(index, length)), trueSucc, falseSucc, 1, graphId));
+        IfNode ifNode = currentGraph.add(new IfNode(currentGraph.unique(new IntegerBelowThanNode(index, length)), trueSucc, falseSucc, 0.5, graphId));
 
         append(ifNode);
         lastInstr = trueSucc;