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diff src/share/vm/opto/ifnode.cpp @ 1153:bea7a22a6f79

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6915110: IfNode::up_one_dom moves beyond RootNode bug in src/share/vm/opto/ifnode.cpp Summary: Check RootNode before check Loop in IfNode::up_one_dom(). Reviewed-by: never Contributed-by: kevin.brown@sun.com
author kvn
date Fri, 08 Jan 2010 09:42:31 -0800
parents e715b51789d8
children c18cbe5936b8
line wrap: on
line diff
--- a/src/share/vm/opto/ifnode.cpp	Fri Jan 08 11:09:46 2010 +0100
+++ b/src/share/vm/opto/ifnode.cpp	Fri Jan 08 09:42:31 2010 -0800
@@ -531,6 +531,9 @@
   if (linear_only)
     return NULL;
 
+  if( dom->is_Root() )
+    return NULL;
+
   // Else hit a Region.  Check for a loop header
   if( dom->is_Loop() )
     return dom->in(1);          // Skip up thru loops