diff --git a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp index 1382826c838e..a4cbcd4cffef 100644 --- a/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp +++ b/llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp @@ -3919,6 +3919,7 @@ void LSRInstance::GenerateICmpZeroScales(LSRUse &LU, unsigned LUIdx, if (Base.BaseOffset == std::numeric_limits<int64_t>::min() && Factor == -1) continue; int64_t NewBaseOffset = (uint64_t)Base.BaseOffset * Factor; + assert(Factor != 0 && "Zero factor not expected!"); if (NewBaseOffset / Factor != Base.BaseOffset) continue; // If the offset will be truncated at this use, check that it is in bounds.