Fix a recently added optimization to not crash on vectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51471 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Transforms/Scalar/InstructionCombining.cpp b/lib/Transforms/Scalar/InstructionCombining.cpp
index 13dbc11..a398884 100644
--- a/lib/Transforms/Scalar/InstructionCombining.cpp
+++ b/lib/Transforms/Scalar/InstructionCombining.cpp
@@ -3276,8 +3276,16 @@
Value *Op0 = I.getOperand(0), *Op1 = I.getOperand(1);
// (sdiv X, X) --> 1 (udiv X, X) --> 1
- if (Op0 == Op1)
- return ReplaceInstUsesWith(I, ConstantInt::get(I.getType(), 1));
+ if (Op0 == Op1) {
+ if (const VectorType *Ty = dyn_cast<VectorType>(I.getType())) {
+ ConstantInt *CI = ConstantInt::get(Ty->getElementType(), 1);
+ std::vector<Constant*> Elts(Ty->getNumElements(), CI);
+ return ReplaceInstUsesWith(I, ConstantVector::get(Elts));
+ }
+
+ ConstantInt *CI = ConstantInt::get(I.getType(), 1);
+ return ReplaceInstUsesWith(I, CI);
+ }
if (Instruction *Common = commonDivTransforms(I))
return Common;