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

[Matt Arsenault via llvm-commits]

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@@ -233,6 +241,13 @@ struct AMDGPUOutgoingArgHandler : public AMDGPUOutgoingValueHandler {
   void assignValueToReg(Register ValVReg, Register PhysReg,
                         const CCValAssign &VA) override {
     MIB.addUse(PhysReg, RegState::Implicit);
+
+    if (VA.getLocVT() == MVT::i1 &&
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arsenm wrote:

For the i1 inreg case, do you get getLocVT == MVT::i32? that should still hit the extendRegisterMin32 path 

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