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changeset 19451:c5d5bbf7ec6c

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Cut off loop exit probability at 1D.
author Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
date Tue, 17 Feb 2015 17:31:48 +0100
parents 67337afcb69e
children 3e5c4e59c586
files graal/com.oracle.graal.java/src/com/oracle/graal/java/ComputeLoopFrequenciesClosure.java
diffstat 1 files changed, 2 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/graal/com.oracle.graal.java/src/com/oracle/graal/java/ComputeLoopFrequenciesClosure.java	Tue Feb 17 17:05:04 2015 +0100
+++ b/graal/com.oracle.graal.java/src/com/oracle/graal/java/ComputeLoopFrequenciesClosure.java	Tue Feb 17 17:31:48 2015 +0100
@@ -62,10 +62,11 @@
         Map<LoopExitNode, Double> exitStates = ReentrantNodeIterator.processLoop(this, loop, 1D).exitStates;
 
         double exitProbability = exitStates.values().stream().mapToDouble(d -> d).sum();
-        assert exitProbability <= 1D && exitProbability >= 0D;
+        exitProbability = Math.min(1D, exitProbability);
         if (exitProbability < MIN_PROBABILITY) {
             exitProbability = MIN_PROBABILITY;
         }
+        assert exitProbability <= 1D && exitProbability >= 0D;
         double loopFrequency = 1D / exitProbability;
         loop.setLoopFrequency(loopFrequency);