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 i8* @f() presplitcoroutine {
6 %x = alloca i1, align 64
8 %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
9 %size = call i32 @llvm.coro.size.i32()
10 %align = call i32 @llvm.coro.align.i32()
11 %alloc = call i8* @aligned_alloc(i32 %align, i32 %size)
12 %hdl = call i8* @llvm.coro.begin(token %id, i8* %alloc)
13 %sp1 = call i8 @llvm.coro.suspend(token none, i1 false)
14 switch i8 %sp1, label %suspend [i8 0, label %resume
17 %x.alias = bitcast i1* %x to i32*
18 call void @capture_call(i32* %x.alias)
19 %y.alias = bitcast i64* %y to i32*
20 call void @capture_call(i32* %y.alias)
24 %mem = call i8* @llvm.coro.free(token %id, i8* %hdl)
25 call void @free(i8* %mem)
29 call i1 @llvm.coro.end(i8* %hdl, i1 0)
33 ; %x needs to go to the frame since it's escaped; %y will stay as local since it doesn't escape.
34 ; CHECK: %f.Frame = type { void (%f.Frame*)*, void (%f.Frame*)*, i64, i1, [39 x i8], i1 }
35 ; CHECK-LABEL: define i8* @f()
36 ; CHECK: %[[ALLOC:.+]] = call i8* @aligned_alloc(i32 64, i32 72)
37 ; CHECK-NEXT: call noalias nonnull i8* @llvm.coro.begin(token %id, i8* %[[ALLOC]])
39 declare i8* @llvm.coro.free(token, i8*)
40 declare i32 @llvm.coro.size.i32()
41 declare i32 @llvm.coro.align.i32()
42 declare i8 @llvm.coro.suspend(token, i1)
43 declare void @llvm.coro.resume(i8*)
44 declare void @llvm.coro.destroy(i8*)
46 declare token @llvm.coro.id(i32, i8*, i8*, i8*)
47 declare i1 @llvm.coro.alloc(token)
48 declare i8* @llvm.coro.begin(token, i8*)
49 declare i1 @llvm.coro.end(i8*, i1)
51 declare void @capture_call(i32*)
52 declare void @nocapture_call(i32* nocapture)
53 declare noalias i8* @aligned_alloc(i32, i32)
54 declare void @free(i8*)