llvm/test/CodeGen/AMDGPU/call-alias-register-usage2.ll

; RUN: llc -O0 -mtriple=amdgcn-amd-amdhsa -mcpu=gfx900 < %s | FileCheck %s

; CallGraphAnalysis, which CodeGenSCC order depends on, does not look
; through aliases. If GlobalOpt is never run, we do not see direct
; calls,

@alias2 = hidden alias void (), ptr @aliasee_vgpr64_sgpr102

; CHECK-LABEL: {{^}}kernel2:
; CHECK:      .amdhsa_next_free_vgpr max(totalnumvgprs(kernel2.num_agpr, kernel2.num_vgpr), 1, 0)
; CHECK-NEXT: .amdhsa_next_free_sgpr (max(kernel2.numbered_sgpr+(extrasgprs(kernel2.uses_vcc, kernel2.uses_flat_scratch, 1)), 1, 0))-(extrasgprs(kernel2.uses_vcc, kernel2.uses_flat_scratch, 1))

; CHECK:      .set kernel2.num_vgpr, max(32, aliasee_vgpr64_sgpr102.num_vgpr)
; CHECK-NEXT: .set kernel2.num_agpr, max(0, aliasee_vgpr64_sgpr102.num_agpr)
; CHECK-NEXT: .set kernel2.numbered_sgpr, max(33, aliasee_vgpr64_sgpr102.numbered_sgpr)
define amdgpu_kernel void @kernel2() #0 {
bb:
  call void @alias2() #2
  ret void
}

; CHECK:      .set aliasee_vgpr64_sgpr102.num_vgpr, 53
; CHECK-NEXT: .set aliasee_vgpr64_sgpr102.num_agpr, 0
; CHECK-NEXT: .set aliasee_vgpr64_sgpr102.numbered_sgpr, 32
define internal void @aliasee_vgpr64_sgpr102() #1 {
bb:
  call void asm sideeffect "; clobber v52 ", "~{v52}"()
  ret void
}

attributes #0 = { noinline norecurse nounwind optnone }
attributes #1 = { noinline norecurse nounwind readnone willreturn "amdgpu-waves-per-eu"="4,10" }
attributes #2 = { nounwind readnone willreturn }

!llvm.module.flags = !{!0}
!0 = !{i32 1, !"amdhsa_code_object_version", i32 500}