1 ; Verify that we correctly handle suspend when the coro.end block contains phi
2 ; RUN: opt < %s -aa-pipeline=basic-aa -passes='default<O2>' -S | FileCheck %s
4 define ptr @f(i32 %n) presplitcoroutine {
6 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
7 %size = call i32 @llvm.coro.size.i32()
8 %alloc = call ptr @malloc(i32 %size)
9 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
10 %0 = call i8 @llvm.coro.suspend(token none, i1 false)
11 switch i8 %0, label %suspend [i8 0, label %cleanup i8 1, label %cleanup]
14 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
15 call void @free(ptr %mem)
19 %r = phi i32 [%n, %entry], [1, %cleanup]
20 call i1 @llvm.coro.end(ptr %hdl, i1 false, token none)
21 call void @print(i32 %r)
28 %hdl = call ptr @f(i32 4)
29 call void @llvm.coro.resume(ptr %hdl)
31 ;CHECK: call void @print(i32 4)
35 declare ptr @llvm.coro.alloc()
36 declare i32 @llvm.coro.size.i32()
37 declare ptr @llvm.coro.free(token, ptr)
38 declare i8 @llvm.coro.suspend(token, i1)
39 declare void @llvm.coro.resume(ptr)
40 declare void @llvm.coro.destroy(ptr)
42 declare token @llvm.coro.id(i32, ptr, ptr, ptr)
43 declare ptr @llvm.coro.begin(token, ptr)
44 declare i1 @llvm.coro.end(ptr, i1, token)
46 declare noalias ptr @malloc(i32)
47 declare void @print(i32)
48 declare void @free(ptr)