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 %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
7 %size = call i32 @llvm.coro.size.i32()
8 %align = call i32 @llvm.coro.align.i32()
9 %alloc = call i8* @aligned_alloc(i32 %align, i32 %size)
10 %hdl = call i8* @llvm.coro.begin(token %id, i8* %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 i8* @llvm.coro.free(token %id, i8* %hdl)
19 call void @free(i8* %mem)
23 call i1 @llvm.coro.end(i8* %hdl, i1 0)
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 { void (%f.Frame*)*, void (%f.Frame*)*, i1 }
29 ; CHECK-LABEL: define i8* @f()
30 ; CHECK: %[[ALLOC:.+]] = call i8* @aligned_alloc(i32 8, i32 24)
31 ; CHECK-NEXT: call noalias nonnull i8* @llvm.coro.begin(token %id, i8* %[[ALLOC]])
33 declare i8* @llvm.coro.free(token, i8*)
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(i8*)
38 declare void @llvm.coro.destroy(i8*)
40 declare token @llvm.coro.id(i32, i8*, i8*, i8*)
41 declare i1 @llvm.coro.alloc(token)
42 declare i8* @llvm.coro.begin(token, i8*)
43 declare i1 @llvm.coro.end(i8*, i1)
45 declare noalias i8* @aligned_alloc(i32, i32)
46 declare void @free(i8*)