[llvm] [VPlan] Use VPInstruction for uniform binops. (PR #141429)

[via llvm-commits]

================
@@ -17,8 +17,7 @@ define void @f1() {
 ; CHECK:       vector.ph:
 ; CHECK-NEXT:    br label [[VECTOR_BODY:%.*]]
 ; CHECK:       vector.body:
-; CHECK-NEXT:    [[TMP0:%.*]] = sext i16 0 to i64
-; CHECK-NEXT:    [[TMP1:%.*]] = getelementptr [2 x ptr], ptr @b, i16 0, i64 [[TMP0]]
----------------
ayalz wrote:

Folding sext-of-zero.

https://github.com/llvm/llvm-project/pull/141429