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changeset 4997:0c9196f57172

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use profiling information whenever possible
author Christian Haeubl <christian.haeubl@oracle.com>
date Wed, 29 Feb 2012 19:20:15 -0800
parents 11ce128f8d28
children 71bcf0a9e875
files graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/GraalOptions.java graal/com.oracle.max.graal.java/src/com/oracle/max/graal/java/GraphBuilderPhase.java
diffstat 2 files changed, 4 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/GraalOptions.java	Wed Feb 29 14:49:54 2012 +0100
+++ b/graal/com.oracle.max.graal.compiler/src/com/oracle/max/graal/compiler/GraalOptions.java	Wed Feb 29 19:20:15 2012 -0800
@@ -78,9 +78,9 @@
     public static int     LoopFrequencyPropagationPolicy     = -1;
 
     // profiling information
-    public static int     MatureExecutionsBranch             = 50;
-    public static int     MatureExecutionsPerSwitchCase      = 15;
-    public static int     MatureExecutionsTypeProfile        = 100;
+    public static int     MatureExecutionsBranch             = 1;
+    public static int     MatureExecutionsPerSwitchCase      = 1;
+    public static int     MatureExecutionsTypeProfile        = 1;
 
     //rematerialize settings
     public static float   MinimumUsageProbability            = 0.95f;
--- a/graal/com.oracle.max.graal.java/src/com/oracle/max/graal/java/GraphBuilderPhase.java	Wed Feb 29 14:49:54 2012 +0100
+++ b/graal/com.oracle.max.graal.java/src/com/oracle/max/graal/java/GraphBuilderPhase.java	Wed Feb 29 19:20:15 2012 -0800
@@ -610,6 +610,7 @@
         assert !x.isDeleted() && !y.isDeleted();
         double probability = profilingInfo.getBranchTakenProbability(bci());
         if (probability < 0) {
+            assert probability == -1 : "invalid probability";
             Debug.log("missing probability in %s at bci %d", method, bci());
             probability = 0.5;
         }