llvm/test/Transforms/OpenMP/get_hardware_num_threads_in_block_fold_optnone.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --function-signature --check-globals
; RUN: opt -S -passes=openmp-opt < %s | FileCheck %s
target triple = "nvptx64"

%struct.ident_t = type { i32, i32, i32, i32, i8* }

@kernel0_exec_mode = weak constant i8 1

@G = external global i32
;.
; CHECK: @[[KERNEL0_EXEC_MODE:[a-zA-Z0-9_$"\\.-]+]] = weak constant i8 1
; CHECK: @[[G:[a-zA-Z0-9_$"\\.-]+]] = external global i32
; CHECK: @[[KERNEL1_EXEC_MODE:[a-zA-Z0-9_$"\\.-]+]] = weak constant i8 1
; CHECK: @[[KERNEL2_EXEC_MODE:[a-zA-Z0-9_$"\\.-]+]] = weak constant i8 1
;.
define weak void @kernel0() #0 {
; CHECK-LABEL: define {{[^@]+}}@kernel0
; CHECK-SAME: () #[[ATTR0:[0-9]+]] {
; CHECK-NEXT:    [[I:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* null, i1 true, i1 false, i1 false)
; CHECK-NEXT:    call void @helper0()
; CHECK-NEXT:    call void @helper1()
; CHECK-NEXT:    call void @helper2()
; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* null, i1 true, i1 false)
; CHECK-NEXT:    ret void
;
  %i = call i32 @__kmpc_target_init(%struct.ident_t* null, i1 true, i1 false, i1 false)
  call void @helper0()
  call void @helper1()
  call void @helper2()
  call void @__kmpc_target_deinit(%struct.ident_t* null, i1 true, i1 false)
  ret void
}

@kernel1_exec_mode = weak constant i8 1

define weak void @kernel1() #0 {
; CHECK-LABEL: define {{[^@]+}}@kernel1
; CHECK-SAME: () #[[ATTR0]] {
; CHECK-NEXT:    [[I:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* null, i1 true, i1 false, i1 false)
; CHECK-NEXT:    call void @helper1()
; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* null, i1 false, i1 false)
; CHECK-NEXT:    ret void
;
  %i = call i32 @__kmpc_target_init(%struct.ident_t* null, i1 true, i1 false, i1 false)
  call void @helper1()
  call void @__kmpc_target_deinit(%struct.ident_t* null, i1 false, i1 false)
  ret void
}

@kernel2_exec_mode = weak constant i8 1

define weak void @kernel2() #0 {
; CHECK-LABEL: define {{[^@]+}}@kernel2
; CHECK-SAME: () #[[ATTR0]] {
; CHECK-NEXT:    [[I:%.*]] = call i32 @__kmpc_target_init(%struct.ident_t* null, i1 false, i1 false, i1 false)
; CHECK-NEXT:    call void @helper0()
; CHECK-NEXT:    call void @helper1()
; CHECK-NEXT:    call void @helper2()
; CHECK-NEXT:    call void @__kmpc_target_deinit(%struct.ident_t* null, i1 false, i1 false)
; CHECK-NEXT:    ret void
;
  %i = call i32 @__kmpc_target_init(%struct.ident_t* null, i1 false, i1 false, i1 false)
  call void @helper0()
  call void @helper1()
  call void @helper2()
  call void @__kmpc_target_deinit(%struct.ident_t* null, i1 false, i1 false)
  ret void
}

define internal void @helper0() {
; CHECK-LABEL: define {{[^@]+}}@helper0
; CHECK-SAME: () #[[ATTR1:[0-9]+]] {
; CHECK-NEXT:    [[THREADLIMIT:%.*]] = call i32 @__kmpc_get_hardware_num_threads_in_block() #[[ATTR1]]
; CHECK-NEXT:    store i32 [[THREADLIMIT]], i32* @G, align 4
; CHECK-NEXT:    ret void
;
  %threadLimit = call i32 @__kmpc_get_hardware_num_threads_in_block()
  store i32 %threadLimit, i32* @G
  ret void
}

define internal void @helper1() {
; CHECK-LABEL: define {{[^@]+}}@helper1() {
; CHECK-NEXT:    [[THREADLIMIT:%.*]] = call i32 @__kmpc_get_hardware_num_threads_in_block() #[[ATTR1]]
; CHECK-NEXT:    [[C:%.*]] = icmp eq i32 [[THREADLIMIT]], 666
; CHECK-NEXT:    br i1 [[C]], label [[F:%.*]], label [[T:%.*]]
; CHECK:       t:
; CHECK-NEXT:    call void @helper0() #[[ATTR1]]
; CHECK-NEXT:    ret void
; CHECK:       f:
; CHECK-NEXT:    ret void
;
  %threadLimit = call i32 @__kmpc_get_hardware_num_threads_in_block()
  %c = icmp eq i32 %threadLimit, 666
  br i1 %c, label %f, label %t
t:
  call void @helper0()
  ret void
f:
  ret void
}

define internal void @helper2() {
; CHECK-LABEL: define {{[^@]+}}@helper2() {
; CHECK-NEXT:    [[THREADLIMIT:%.*]] = call i32 @__kmpc_get_hardware_num_threads_in_block() #[[ATTR1]]
; CHECK-NEXT:    store i32 [[THREADLIMIT]], i32* @G, align 4
; CHECK-NEXT:    ret void
;
  %threadLimit = call i32 @__kmpc_get_hardware_num_threads_in_block()
  store i32 %threadLimit, i32* @G
  ret void
}

declare i32 @__kmpc_get_hardware_num_threads_in_block()
declare i32 @__kmpc_target_init(%struct.ident_t*, i1 zeroext, i1 zeroext, i1 zeroext) #1
declare void @__kmpc_target_deinit(%struct.ident_t* nocapture readnone, i1 zeroext, i1 zeroext) #1


!llvm.module.flags = !{!0, !1}
!nvvm.annotations = !{!2, !3, !4}

attributes #0 = { optnone noinline "omp_target_thread_limit"="666" "omp_target_num_teams"="777"}

!0 = !{i32 7, !"openmp", i32 50}
!1 = !{i32 7, !"openmp-device", i32 50}
!2 = !{void ()* @kernel0, !"kernel", i32 1}
!3 = !{void ()* @kernel1, !"kernel", i32 1}
!4 = !{void ()* @kernel2, !"kernel", i32 1}
;
;.
; CHECK: attributes #[[ATTR0]] = { noinline optnone "omp_target_num_teams"="777" "omp_target_thread_limit"="666" }
; CHECK: attributes #[[ATTR1]] = { nounwind }
;.
; CHECK: [[META0:![0-9]+]] = !{i32 7, !"openmp", i32 50}
; CHECK: [[META1:![0-9]+]] = !{i32 7, !"openmp-device", i32 50}
; CHECK: [[META2:![0-9]+]] = !{void ()* @kernel0, !"kernel", i32 1}
; CHECK: [[META3:![0-9]+]] = !{void ()* @kernel1, !"kernel", i32 1}
; CHECK: [[META4:![0-9]+]] = !{void ()* @kernel2, !"kernel", i32 1}
;.