[llvm] [AMDGPU] SIFixSgprCopies should not process twice VGPR to SGPR copies inserted by PHI preprocessing. (PR #134153)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,43 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=amdgcn -mcpu=gfx942 -o - %s | FileCheck --check-prefix=GCN %s
+
+target triple = "amdgcn-amd-amdhsa"
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arsenm wrote:

```suggestion
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx942 -o - %s | FileCheck --check-prefix=GCN %s
```

https://github.com/llvm/llvm-project/pull/134153