1 ; Tests that the coro.align intrinsic could be lowered to correct alignment
2 ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
4 define ptr @f() 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 %align = call i32 @llvm.coro.align.i32()
9 %alloc = call ptr @aligned_alloc(i32 %align, i32 %size)
10 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
11 %sp1 = call i8 @llvm.coro.suspend(token none, i1 false)
12 switch i8 %sp1, label %suspend [i8 0, label %resume
18 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
19 call void @free(ptr %mem)
23 call i1 @llvm.coro.end(ptr %hdl, i1 0, token none)
27 ; %x needs to go to the frame since it's escaped; %y will stay as local since it doesn't escape.
28 ; CHECK: %f.Frame = type { ptr, ptr, i1 }
29 ; CHECK-LABEL: define ptr @f()
30 ; CHECK: %[[ALLOC:.+]] = call ptr @aligned_alloc(i32 8, i32 24)
31 ; CHECK-NEXT: call noalias nonnull ptr @llvm.coro.begin(token %id, ptr %[[ALLOC]])
33 declare ptr @llvm.coro.free(token, ptr)
34 declare i32 @llvm.coro.size.i32()
35 declare i32 @llvm.coro.align.i32()
36 declare i8 @llvm.coro.suspend(token, i1)
37 declare void @llvm.coro.resume(ptr)
38 declare void @llvm.coro.destroy(ptr)
40 declare token @llvm.coro.id(i32, ptr, ptr, ptr)
41 declare i1 @llvm.coro.alloc(token)
42 declare ptr @llvm.coro.begin(token, ptr)
43 declare i1 @llvm.coro.end(ptr, i1, token)
45 declare noalias ptr @aligned_alloc(i32, i32)
46 declare void @free(ptr)