1 ; Verify that we correctly handle suspend when the coro.end block contains phi
2 ; RUN: opt < %s -O2 -enable-coroutines -S | FileCheck %s
4 define i8* @f(i32 %n) {
6 %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
7 %size = call i32 @llvm.coro.size.i32()
8 %alloc = call i8* @malloc(i32 %size)
9 %hdl = call i8* @llvm.coro.begin(token %id, i8* %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 i8* @llvm.coro.free(token %id, i8* %hdl)
15 call void @free(i8* %mem)
19 %r = phi i32 [%n, %entry], [1, %cleanup]
20 call i1 @llvm.coro.end(i8* %hdl, i1 false)
21 call void @print(i32 %r)
28 %hdl = call i8* @f(i32 4)
29 call void @llvm.coro.resume(i8* %hdl)
31 ;CHECK: call void @print(i32 4)
35 declare i8* @llvm.coro.alloc()
36 declare i32 @llvm.coro.size.i32()
37 declare i8* @llvm.coro.free(token, i8*)
38 declare i8 @llvm.coro.suspend(token, i1)
39 declare void @llvm.coro.resume(i8*)
40 declare void @llvm.coro.destroy(i8*)
42 declare token @llvm.coro.id(i32, i8*, i8*, i8*)
43 declare i8* @llvm.coro.begin(token, i8*)
44 declare i1 @llvm.coro.end(i8*, i1)
46 declare noalias i8* @malloc(i32)
47 declare void @print(i32)
48 declare void @free(i8*)