[llvm] [AMDGPU] S_SET_GPR_IDX_ON can be passed an immediate index (PR #125086)

[Matt Arsenault via llvm-commits]

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@@ -0,0 +1,38 @@
+; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
+; RUN: llc < %s -mtriple=amdgcn -mcpu=gfx90a -verify-machineinstrs | FileCheck %s
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arsenm wrote:

Don't need -verify-machineinstrs 

https://github.com/llvm/llvm-project/pull/125086