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

[Jun Wang via llvm-commits]

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@@ -852,12 +852,22 @@ void SIInstrInfo::copyPhysReg(MachineBasicBlock &MBB,
     }
 
     if (!AMDGPU::SReg_32RegClass.contains(SrcReg)) {
+      // When calling convention allocates SGPR for i1 argument, we may
+      // have a SRPR_64 to SReg_32 copy for an outgoing i1 argument. Adjust
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jwanggit86 wrote:

This change has been reverted in the latest solution.

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