llvm/llvm/test/CodeGen/SPIRV/structurizer/cf.return.void.ll

; RUN: llc -mtriple=spirv-unknown-vulkan-compute -O0 %s -o - | FileCheck %s
; RUN: %if spirv-tools %{ llc -O0 -mtriple=spirv-unknown-vulkan-compute %s -o - -filetype=obj | spirv-val %}

;
; void A() {
; }
;
; [numthreads(1, 1, 1)]
; void main() {
;   return A();
; }

; CHECK: %[[#func_3:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK:    %[[#bb8:]] = OpLabel
; CHECK:                 OpReturn
; CHECK:                 OpFunctionEnd
; CHECK: %[[#func_4:]] = OpFunction %[[#void:]] DontInline %[[#]]
; CHECK:    %[[#bb9:]] = OpLabel
; CHECK:                 OpReturn
; CHECK:                 OpFunctionEnd
; CHECK: %[[#func_6:]] = OpFunction %[[#void:]] None %[[#]]
; CHECK:   %[[#bb10:]] = OpLabel
; CHECK:                 OpReturn
; CHECK:                 OpFunctionEnd



target datalayout = "e-i64:64-v16:16-v24:32-v32:32-v48:64-v96:128-v192:256-v256:256-v512:512-v1024:1024-G1"
target triple = "spirv-unknown-vulkan1.3-compute"

; Function Attrs: convergent noinline norecurse nounwind optnone
define spir_func void @_Z1Av() #0 {
entry:
  %0 = call token @llvm.experimental.convergence.entry()
  ret void
}

; Function Attrs: convergent nocallback nofree nosync nounwind willreturn memory(none)
declare token @llvm.experimental.convergence.entry() #1

; Function Attrs: convergent noinline norecurse nounwind optnone
define internal spir_func void @main() #0 {
entry:
  %0 = call token @llvm.experimental.convergence.entry()
  call spir_func void @_Z1Av() #3 [ "convergencectrl"(token %0) ]
  ret void
}

; Function Attrs: convergent norecurse
define void @main.1() #2 {
entry:
  call void @main()
  ret void
}

attributes #0 = { convergent noinline norecurse nounwind optnone "frame-pointer"="all" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #1 = { convergent nocallback nofree nosync nounwind willreturn memory(none) }
attributes #2 = { convergent norecurse "frame-pointer"="all" "hlsl.numthreads"="1,1,1" "hlsl.shader"="compute" "no-trapping-math"="true" "stack-protector-buffer-size"="8" }
attributes #3 = { convergent }

!llvm.module.flags = !{!0, !1, !2}


!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{i32 4, !"dx.disable_optimizations", i32 1}
!2 = !{i32 7, !"frame-pointer", i32 2}