diff options
| author | Roman Divacky <rdivacky@FreeBSD.org> | 2009-11-18 14:58:34 +0000 |
|---|---|---|
| committer | Roman Divacky <rdivacky@FreeBSD.org> | 2009-11-18 14:58:34 +0000 |
| commit | 907da171cc911d701da02a5cab898a9c49dd7724 (patch) | |
| tree | 6a111e552c75afc66228e3d8f19b6731e4013f10 /lib/Transforms/Scalar/LoopDeletion.cpp | |
| parent | 72cc50852bec44580ee7efe1aa2076273008a6ae (diff) | |
Notes
Diffstat (limited to 'lib/Transforms/Scalar/LoopDeletion.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/LoopDeletion.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/lib/Transforms/Scalar/LoopDeletion.cpp b/lib/Transforms/Scalar/LoopDeletion.cpp index 866d8b41d9de..48817ab9d5ad 100644 --- a/lib/Transforms/Scalar/LoopDeletion.cpp +++ b/lib/Transforms/Scalar/LoopDeletion.cpp @@ -115,6 +115,10 @@ bool LoopDeletion::runOnLoop(Loop* L, LPPassManager& LPM) { if (!preheader) return false; + // If LoopSimplify form is not available, stay out of trouble. + if (!L->hasDedicatedExits()) + return false; + // We can't remove loops that contain subloops. If the subloops were dead, // they would already have been removed in earlier executions of this pass. if (L->begin() != L->end()) |