[llvm] [AMDGPU] Allocate i1 argument to SGPRs (PR #72461)

[Matt Arsenault via llvm-commits]

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@@ -407,6 +407,12 @@ class CallLowering {
       CallingConv::ID CallConv, bool IsVarArg,
       ArrayRef<Register> ThisReturnRegs = std::nullopt) const;
 
+  bool determineAndHandleAssignments(
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arsenm wrote:

Still should undo this and just use the 2 separate pieces 

https://github.com/llvm/llvm-project/pull/72461