diff options
| author | rasbold <none@none> | 2008-04-09 09:25:45 -0700 |
|---|---|---|
| committer | rasbold <none@none> | 2008-04-09 09:25:45 -0700 |
| commit | 56c828b704cf049c95962d39e715c68907f6a305 (patch) | |
| tree | cf2100a98acc23b63214e292d18aca4334d0ada0 /src/share/vm/opto/loopopts.cpp | |
| parent | 99011bbade477f730d28cc9dff63e4b8f514a601 (diff) | |
6684385: Loop unswitching crashes without LoopNode
Summary: Without LoopNode, exit early from loop unswitching and partial peeling
Reviewed-by: kvn, never, sgoldman
Diffstat (limited to 'src/share/vm/opto/loopopts.cpp')
| -rw-r--r-- | src/share/vm/opto/loopopts.cpp | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/share/vm/opto/loopopts.cpp b/src/share/vm/opto/loopopts.cpp index 6535c5529..52dc89266 100644 --- a/src/share/vm/opto/loopopts.cpp +++ b/src/share/vm/opto/loopopts.cpp @@ -2257,6 +2257,9 @@ bool PhaseIdealLoop::is_valid_clone_loop_form( IdealLoopTree *loop, Node_List& p // bool PhaseIdealLoop::partial_peel( IdealLoopTree *loop, Node_List &old_new ) { + if (!loop->_head->is_Loop()) { + return false; } + LoopNode *head = loop->_head->as_Loop(); if (head->is_partial_peel_loop() || head->partial_peel_has_failed()) { |