diff options
Diffstat (limited to 'llvm/lib/IR/ConstantFold.cpp')
| -rw-r--r-- | llvm/lib/IR/ConstantFold.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/IR/ConstantFold.cpp b/llvm/lib/IR/ConstantFold.cpp index f6dbe9b5ea9..bf01f9f2ae6 100644 --- a/llvm/lib/IR/ConstantFold.cpp +++ b/llvm/lib/IR/ConstantFold.cpp @@ -833,6 +833,12 @@ Constant *llvm::ConstantFoldInsertElementInstruction(Constant *Val, ConstantInt *CIdx = dyn_cast<ConstantInt>(Idx); if (!CIdx) return nullptr; + // Do not iterate on scalable vector. The num of elements is unknown at + // compile-time. + VectorType *ValTy = cast<VectorType>(Val->getType()); + if (ValTy->isScalable()) + return nullptr; + unsigned NumElts = Val->getType()->getVectorNumElements(); if (CIdx->uge(NumElts)) return UndefValue::get(Val->getType()); |
