[llvm] [CodeGen] Combine two loops in SloIndexes.cpp file (PR #127631)

[Matt Arsenault via llvm-commits]

================
@@ -1822,4 +1888,4 @@ entry:
 
 ;; NOTE: These prefixes are unused and the list is autogenerated. Do not add tests below this line:
 ; CHECK-LIS: {{.*}}
-; CHECK-LV: {{.*}}
+; CHECK-LV: {{.*}}
----------------
arsenm wrote:

```suggestion
; CHECK-LV: {{.*}}

```

https://github.com/llvm/llvm-project/pull/127631