llvm/test/Transforms/Coroutines/coro-alloc-with-param-O2.ll

; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs --version 6
; Check that we can handle the case when both alloc function and
; the user body consume the same argument.
; Verify that %this is added to the frame, spilled into the frame, and loaded from the frame.
; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s

; using this directly (as it would happen under -O2)
define ptr @f_direct(i64 %this) presplitcoroutine {
entry:
  %id = call token @llvm.coro.id(i32 0, ptr null, ptr @f_direct, ptr null)
  %size = call i32 @llvm.coro.size.i32()
  %alloc = call ptr @myAlloc(i64 %this, i32 %size)
  %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
  %0 = call i8 @llvm.coro.suspend(token none, i1 false)
  switch i8 %0, label %suspend [i8 0, label %resume
  i8 1, label %cleanup]
resume:
  call void @print2(i64 %this)
  br label %cleanup

cleanup:
  %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
  call void @free(ptr %mem)
  br label %suspend
suspend:
  call void @llvm.coro.end(ptr %hdl, i1 0, token none)
  ret ptr %hdl
}

declare ptr @llvm.coro.free(token, ptr)
declare i32 @llvm.coro.size.i32()
declare i8  @llvm.coro.suspend(token, i1)
declare void @llvm.coro.resume(ptr)
declare void @llvm.coro.destroy(ptr)

declare token @llvm.coro.id(i32, ptr, ptr, ptr)
declare i1 @llvm.coro.alloc(token)
declare ptr @llvm.coro.begin(token, ptr)
declare void @llvm.coro.end(ptr, i1, token)

declare noalias ptr @myAlloc(i64, i32)
declare double @print(double)
declare void @print2(i64)
declare void @free(ptr)
; CHECK-LABEL: define ptr @f_direct(
; CHECK-SAME: i64 [[THIS:%.*]]) {
; CHECK-NEXT:  [[ENTRY:.*:]]
; CHECK-NEXT:    [[ID:%.*]] = call token @llvm.coro.id(i32 0, ptr null, ptr @f_direct, ptr @f_direct.resumers)
; CHECK-NEXT:    [[ALLOC:%.*]] = call ptr @myAlloc(i64 [[THIS]], i32 32)
; CHECK-NEXT:    [[HDL:%.*]] = call noalias nonnull ptr @llvm.coro.begin(token [[ID]], ptr [[ALLOC]])
; CHECK-NEXT:    store ptr @f_direct.resume, ptr [[HDL]], align 8
; CHECK-NEXT:    [[DESTROY_ADDR:%.*]] = getelementptr inbounds i8, ptr [[HDL]], i64 8
; CHECK-NEXT:    store ptr @f_direct.destroy, ptr [[DESTROY_ADDR]], align 8
; CHECK-NEXT:    [[THIS_SPILL_ADDR:%.*]] = getelementptr inbounds i8, ptr [[HDL]], i64 16
; CHECK-NEXT:    store i64 [[THIS]], ptr [[THIS_SPILL_ADDR]], align 4
; CHECK-NEXT:    [[INDEX_ADDR1:%.*]] = getelementptr inbounds i8, ptr [[HDL]], i64 24
; CHECK-NEXT:    store i1 false, ptr [[INDEX_ADDR1]], align 1
; CHECK-NEXT:    ret ptr [[HDL]]
;
;
; CHECK-LABEL: define internal fastcc void @f_direct.resume(
; CHECK-SAME: ptr noundef nonnull align 8 dereferenceable(32) [[HDL:%.*]]) {
; CHECK-NEXT:  [[ENTRY_RESUME:.*:]]
; CHECK-NEXT:    [[THIS_RELOAD_ADDR:%.*]] = getelementptr inbounds i8, ptr [[HDL]], i64 16
; CHECK-NEXT:    [[THIS_RELOAD:%.*]] = load i64, ptr [[THIS_RELOAD_ADDR]], align 4
; CHECK-NEXT:    call void @print2(i64 [[THIS_RELOAD]])
; CHECK-NEXT:    [[MEM:%.*]] = call ptr @llvm.coro.free(token poison, ptr [[HDL]])
; CHECK-NEXT:    call void @free(ptr [[MEM]])
; CHECK-NEXT:    ret void
;
;
; CHECK-LABEL: define internal fastcc void @f_direct.destroy(
; CHECK-SAME: ptr noundef nonnull align 8 dereferenceable(32) [[HDL:%.*]]) {
; CHECK-NEXT:  [[ENTRY_DESTROY:.*:]]
; CHECK-NEXT:    [[MEM:%.*]] = call ptr @llvm.coro.free(token poison, ptr [[HDL]])
; CHECK-NEXT:    call void @free(ptr [[MEM]])
; CHECK-NEXT:    ret void
;
;
; CHECK-LABEL: define internal fastcc void @f_direct.cleanup(
; CHECK-SAME: ptr noundef nonnull align 8 dereferenceable(32) [[HDL:%.*]]) {
; CHECK-NEXT:  [[ENTRY_CLEANUP:.*:]]
; CHECK-NEXT:    call void @free(ptr null)
; CHECK-NEXT:    ret void
;