llvm/test/Transforms/Coroutines/coro-early.ll

; Tests that CoroEarly pass correctly lowers coro.resume, coro.destroy
; and other intrinsics managed by this pass.
; RUN: opt < %s -S -passes=coro-early | FileCheck %s

; CHECK: %NoopCoro.Frame = type { void (%NoopCoro.Frame*)*, void (%NoopCoro.Frame*)* }
; CHECK: @NoopCoro.Frame.Const = private constant %NoopCoro.Frame { void (%NoopCoro.Frame*)* @NoopCoro.ResumeDestroy, void (%NoopCoro.Frame*)* @NoopCoro.ResumeDestroy }

; CHECK-LABEL: @callResume(
define void @callResume(i8* %hdl) {
; CHECK-NEXT: entry
entry:
; CHECK-NEXT: %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0)
; CHECK-NEXT: %1 = bitcast i8* %0 to void (i8*)*
; CHECK-NEXT: call fastcc void %1(i8* %hdl)
  call void @llvm.coro.resume(i8* %hdl)

; CHECK-NEXT: %2 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 1)
; CHECK-NEXT: %3 = bitcast i8* %2 to void (i8*)*
; CHECK-NEXT: call fastcc void %3(i8* %hdl)
  call void @llvm.coro.destroy(i8* %hdl)

  ret void
; CHECK-NEXT: ret void
}

; CHECK-LABEL: @eh(
define void @eh(i8* %hdl) personality i8* null {
; CHECK-NEXT: entry
entry:
;  CHECK-NEXT: %0 = call i8* @llvm.coro.subfn.addr(i8* %hdl, i8 0)
;  CHECK-NEXT: %1 = bitcast i8* %0 to void (i8*)*
;  CHECK-NEXT: invoke fastcc void %1(i8* %hdl)
  invoke void @llvm.coro.resume(i8* %hdl)
          to label %cont unwind label %ehcleanup
cont:
  ret void

ehcleanup:
  %0 = cleanuppad within none []
  cleanupret from %0 unwind to caller
}


; CHECK-LABEL: @noop(
define i8* @noop() {
; CHECK-NEXT: entry
entry:
; CHECK-NEXT: ret i8* bitcast (%NoopCoro.Frame* @NoopCoro.Frame.Const to i8*)
  %n = call i8* @llvm.coro.noop()
  ret i8* %n
}

; CHECK-LABEL: define private fastcc void @NoopCoro.ResumeDestroy(%NoopCoro.Frame* %0) {
; CHECK-NEXT: entry
; CHECK-NEXT:    ret void


declare void @llvm.coro.resume(i8*)
declare void @llvm.coro.destroy(i8*)
declare i8* @llvm.coro.noop()