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comparison src/share/vm/opto/superword.cpp @ 3850:6987871cfb9b

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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
comparison
equal deleted inserted replaced
3849:f1c12354c3f7 3850:6987871cfb9b
67 67
68 //------------------------------transform_loop--------------------------- 68 //------------------------------transform_loop---------------------------
69 void SuperWord::transform_loop(IdealLoopTree* lpt) { 69 void SuperWord::transform_loop(IdealLoopTree* lpt) {
70 assert(lpt->_head->is_CountedLoop(), "must be"); 70 assert(lpt->_head->is_CountedLoop(), "must be");
71 CountedLoopNode *cl = lpt->_head->as_CountedLoop(); 71 CountedLoopNode *cl = lpt->_head->as_CountedLoop();
72
73 if (!cl->is_valid_counted_loop()) return; // skip malformed counted loop
72 74
73 if (!cl->is_main_loop() ) return; // skip normal, pre, and post loops 75 if (!cl->is_main_loop() ) return; // skip normal, pre, and post loops
74 76
75 // Check for no control flow in body (other than exit) 77 // Check for no control flow in body (other than exit)
76 Node *cl_exit = cl->loopexit(); 78 Node *cl_exit = cl->loopexit();