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 %x = alloca i64, align 16
8 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
9 %size = call i32 @llvm.coro.size.i32()
10 %align = call i32 @llvm.coro.align.i32()
11 %alloc = call ptr @aligned_alloc(i32 %align, i32 %size)
12 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
13 %sp1 = call i8 @llvm.coro.suspend(token none, i1 false)
14 switch i8 %sp1, label %suspend [i8 0, label %resume
17 call void @capture_call(ptr %x)
18 call void @capture_call(ptr %y)
22 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
23 call void @free(ptr %mem)
27 call i1 @llvm.coro.end(ptr %hdl, i1 0, token none)
31 ; %x needs to go to the frame since it's escaped; %y will stay as local since it doesn't escape.
32 ; CHECK: %f.Frame = type { ptr, ptr, i64, i64, i1 }
33 ; CHECK-LABEL: define ptr @f()
34 ; CHECK: %[[ALLOC:.+]] = call ptr @aligned_alloc(i32 16, i32 40)
35 ; CHECK-NEXT: call noalias nonnull ptr @llvm.coro.begin(token %id, ptr %[[ALLOC]])
37 declare ptr @llvm.coro.free(token, ptr)
38 declare i32 @llvm.coro.size.i32()
39 declare i32 @llvm.coro.align.i32()
40 declare i8 @llvm.coro.suspend(token, i1)
41 declare void @llvm.coro.resume(ptr)
42 declare void @llvm.coro.destroy(ptr)
44 declare token @llvm.coro.id(i32, ptr, ptr, ptr)
45 declare i1 @llvm.coro.alloc(token)
46 declare ptr @llvm.coro.begin(token, ptr)
47 declare i1 @llvm.coro.end(ptr, i1, token)
49 declare void @capture_call(ptr)
50 declare void @nocapture_call(ptr nocapture)
51 declare noalias ptr @aligned_alloc(i32, i32)
52 declare void @free(ptr)