diff options
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 866d8b4..48817ab 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()) |
