1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
; RUN: opt < %s -S -passes=coro-early | FileCheck %s
%struct.A = type <{ i64, i64, i32, [4 x i8] }>
define void @f(ptr nocapture readonly noalias align 8 %a) presplitcoroutine {
%id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%size = call i32 @llvm.coro.size.i32()
%alloc = call ptr @malloc(i32 %size)
%hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
call void @print(i32 0)
%s1 = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %s1, label %suspend [i8 0, label %resume
i8 1, label %cleanup]
resume:
call void @print(i32 1)
br label %cleanup
cleanup:
%mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
call void @free(ptr %mem)
br label %suspend
suspend:
call i1 @llvm.coro.end(ptr %hdl, i1 0)
ret void
}
; check that the noalias attribute is removed from the argument
; CHECK: define void @f(ptr nocapture readonly align 8 %a)
declare token @llvm.coro.id(i32, ptr, ptr, ptr)
declare ptr @llvm.coro.begin(token, ptr)
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 i1 @llvm.coro.end(ptr, i1)
declare noalias ptr @malloc(i32)
declare void @print(i32)
declare void @free(ptr)
|
