diff options
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp b/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp index 7bc291784ab..b57b7c276d7 100644 --- a/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp +++ b/llvm/lib/Transforms/Scalar/LoopIdiomRecognize.cpp @@ -611,7 +611,9 @@ bool NclPopcountRecognize::recognize() { bool LoopIdiomRecognize::runOnCountableLoop() { const SCEV *BECount = SE->getBackedgeTakenCount(CurLoop); - if (isa<SCEVCouldNotCompute>(BECount)) return false; + assert(!isa<SCEVCouldNotCompute>(BECount) && + "runOnCountableLoop() called on a loop without a predictable" + "backedge-taken count"); // If this loop executes exactly one time, then it should be peeled, not // optimized by this pass. |
