[InstCombine] make sure type is integer before calling ComputeNumSignBits

llvm-svn: 344610
2018-10-16 14:44:50 +00:00 · 2018-10-16 14:44:50 +00:00 · f6a7c8b1fc
parent 0c48c977b8
commit f6a7c8b1fc
1 changed files with 2 additions and 1 deletions
--- a/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAndOrXor.cpp
@ -1834,7 +1834,8 @@ static bool areInverseVectorBitmasks(Constant *C1, Constant *C2) {
 Value *InstCombiner::getSelectCondition(Value *A, Value *B) {
  // Step 1: We need 0 or all-1's bitmasks.
  Type *Ty = A->getType();
-  if (ComputeNumSignBits(A) != Ty->getScalarSizeInBits())
+  if (Ty->isIntOrIntVectorTy() &&
+      ComputeNumSignBits(A) != Ty->getScalarSizeInBits())
    return nullptr;

  // Step 2: If B is the 'not' value of A, we have our answer.