[llvm] [AArch64][GlobalISel] Fix creation of incorrect COPY gpr32, grp32.sub_32 (PR #171100)

[Matt Arsenault via llvm-commits]

================
@@ -1,73 +1,130 @@
 ; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
-; RUN: llc -mtriple=aarch64_be -o - %s | FileCheck %s --check-prefix CHECK-BE
-; RUN: llc -mtriple=aarch64 -o - %s | FileCheck %s --check-prefix CHECK-LE
+; RUN: llc -mtriple=aarch64 -o - %s | FileCheck %s --check-prefixes CHECK-LE,CHECK-SD
+; RUN: llc -mtriple=aarch64_be -o - %s | FileCheck %s --check-prefixes CHECK-BE
----------------
arsenm wrote:

```suggestion
; RUN: llc -global-isel=0 -mtriple=aarch64 -o - %s | FileCheck %s --check-prefixes CHECK-LE,CHECK-SD
; RUN: llc -global-isel=0 -mtriple=aarch64_be -o - %s | FileCheck %s --check-prefixes CHECK-BE
```

https://github.com/llvm/llvm-project/pull/171100