Mercurial > hg > truffle
diff src/share/vm/opto/superword.cpp @ 3850:6987871cfb9b
7077439: Possible reference through NULL in loopPredicate.cpp:726
Summary: Use cl->is_valid_counted_loop() check.
Reviewed-by: never
author | kvn |
---|---|
date | Wed, 10 Aug 2011 14:06:57 -0700 |
parents | c7b60b601eb4 |
children | dc682d9431f3 |
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--- a/src/share/vm/opto/superword.cpp Tue Aug 02 18:36:40 2011 +0200 +++ b/src/share/vm/opto/superword.cpp Wed Aug 10 14:06:57 2011 -0700 @@ -70,6 +70,8 @@ assert(lpt->_head->is_CountedLoop(), "must be"); CountedLoopNode *cl = lpt->_head->as_CountedLoop(); + if (!cl->is_valid_counted_loop()) return; // skip malformed counted loop + if (!cl->is_main_loop() ) return; // skip normal, pre, and post loops // Check for no control flow in body (other than exit)