[llvm] [AMDGPU][Attributor] Infer `inreg` attribute in `AMDGPUAttributor` (PR #101609)

[Shilei Tian via llvm-commits]

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@@ -1014,6 +1015,100 @@ struct AAAMDGPUNoAGPR
 
 const char AAAMDGPUNoAGPR::ID = 0;
 
+struct AAAMDGPUInreg
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shiltian wrote:

Okay. I'm sold.

https://github.com/llvm/llvm-project/pull/101609