[llvm] [MachinePipeliner] Fix fragile tests (PR #123169)

[Ryotaro Kasuga via llvm-commits]

================
@@ -2,7 +2,7 @@
 ; CHECK: .p2align{{.*}}5
 
 ; Function Attrs: nounwind
-define void @wobble(ptr noalias nocapture readonly %arg, i32 %arg1, i32 %arg2, i32 %arg3, ptr noalias nocapture %arg4, i32 %arg5) #0 {
+define void @wobble(ptr noalias nocapture readonly %arg, i32 %arg1, i32 %arg2, i32 %arg3, ptr noalias nocapture %arg4, i32 %arg5, ptr noalias nocapture %arg6) #0 {
----------------
kasuga-fj wrote:

I see, thanks, I'll check the details.

https://github.com/llvm/llvm-project/pull/123169