# HG changeset patch
# User Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
# Date 1358007941 -3600
# Node ID 8db89ad239652248d557a39c20c8ed1248d9967c
# Parent  5ce0743ba6d87b922dfbf218060cea45aec44b9b
Put 1 as lower bound for loop frequency.

diff -r 5ce0743ba6d8 -r 8db89ad23965 graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/ComputeProbabilityPhase.java
--- a/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/ComputeProbabilityPhase.java	Sat Jan 12 14:50:48 2013 +0100
+++ b/graal/com.oracle.graal.phases.common/src/com/oracle/graal/phases/common/ComputeProbabilityPhase.java	Sat Jan 12 17:25:41 2013 +0100
@@ -70,6 +70,9 @@
     private void correctLoopFrequencies(Loop loop, double parentFrequency, BitSet visitedBlocks) {
         LoopBeginNode loopBegin = ((LoopBeginNode) loop.header.getBeginNode());
         double frequency = parentFrequency * loopBegin.loopFrequency();
+        if (frequency < 1) {
+            frequency = 1;
+        }
         for (Loop child : loop.children) {
             correctLoopFrequencies(child, frequency, visitedBlocks);
         }