[llvm] [InstCombine] Fold smin(-a, x - a) + a to smin(x, 0) (PR #167109)

[Yingwei Zheng via llvm-commits]

================
@@ -83,3 +83,18 @@ entry:
   %res = add nuw nsw i32 %min, %max
   ret i32 %res
 }
+
+
+define i32 @sadd_min_neg(i32 %x, i32 %a) {
+; CHECK-LABEL: @sadd_min_neg(
+; CHECK-NEXT:  entry:
+; CHECK-NEXT:  [[RES:%.*]] = call i32 @llvm.smin.i32(i32 [[A:%.*]], i64 5)
----------------
dtcxzyw wrote:

The CI failed: /home/gha/actions-runner/_work/llvm-project/llvm-project/llvm/test/Transforms/InstCombine/add-min-max.ll:91:15: error: CHECK-NEXT: expected string not found in input
Do you use LLM to generate check lines instead of UTC?
Please read https://llvm.org/docs/InstCombineContributorGuide.html#tests

https://github.com/llvm/llvm-project/pull/167109