[llvm] [AMDGPU] Generate waterfall for calls with SGPR(inreg) argument (PR #146997)

[Juan Manuel Martinez Caamaño via llvm-commits]

================
@@ -124,6 +124,12 @@ class SIFixSGPRCopies {
   SmallVector<MachineInstr*, 4> RegSequences;
   SmallVector<MachineInstr*, 4> PHINodes;
   SmallVector<MachineInstr*, 4> S2VCopies;
+  struct V2PysSCopyInfo {
----------------
jmmartinez wrote:

Ahh sounds good. I forgot about that.

https://github.com/llvm/llvm-project/pull/146997