[llvm] [AMDGPU] GCNRewritePartialRegUses - missing superreg (PR #208718)

[via llvm-commits]

================
@@ -0,0 +1,35 @@
+; RUN: llc -mtriple=amdgpu -mcpu=gfx1201 -debug-only=rewrite-partial-reg-uses -filetype=null %s 2>&1 | FileCheck %s
----------------
gretay-amd wrote:

```suggestion
; RUN: llc -mtriple=amdgpu -mcpu=gfx1201 -debug-only=rewrite-partial-reg-uses -filetype=null %s 2>&1 | FileCheck %s
; REQUIRES: asserts
```

https://github.com/llvm/llvm-project/pull/208718