[llvm] [AMDGPU] Add option to preinflate to AVGPR (PR #147413)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,128 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx950 -verify-machineinstrs  %s 2>&1 | FileCheck %s
+; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx950 --amdgpu-avgpr-inflation=1 -verify-machineinstrs %s 2>&1 | FileCheck -check-prefix=INFLATE %s
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arsenm wrote:

```suggestion
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx950 %s 2>&1 | FileCheck %s
; RUN: llc -mtriple=amdgcn-amd-amdhsa -mcpu=gfx950 --amdgpu-avgpr-inflation=1 %s 2>&1 | FileCheck -check-prefix=INFLATE %s
```

https://github.com/llvm/llvm-project/pull/147413