[InstCombine] Turn subtract of vectors of i1 into xor like we do for scalar i1. Matches what we already do for add.

llvm-svn: 299472

1 files changed, 1 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
index 4cd7cbc4e00..cb76902321a 100644
--- a/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
+++ b/llvm/lib/Transforms/InstCombine/InstCombineAddSub.cpp
@@ -1563,7 +1563,7 @@ Instruction *InstCombiner::visitSub(BinaryOperator &I) {
     return Res;
   }
 
-  if (I.getType()->isIntegerTy(1))
+  if (I.getType()->getScalarType()->isIntegerTy(1))
     return BinaryOperator::CreateXor(Op0, Op1);
 
   // Replace (-1 - A) with (~A).