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 i64, align 16
7 %y = alloca i32, align 32
8 %z = alloca i32, align 16
9 %alpha = alloca i1, align 8
10 %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
11 %size = call i32 @llvm.coro.size.i32()
12 %align = call i32 @llvm.coro.align.i32()
13 %alloc = call i8* @aligned_alloc(i32 %align, i32 %size)
14 %hdl = call i8* @llvm.coro.begin(token %id, i8* %alloc)
15 %sp1 = call i8 @llvm.coro.suspend(token none, i1 false)
16 switch i8 %sp1, label %suspend [i8 0, label %resume
19 %x.alias = bitcast i64* %x to i32*
20 call void @capture_call(i32* %x.alias)
21 %y.alias = bitcast i32* %y to i32*
22 call void @capture_call(i32* %y.alias)
23 %z.alias = bitcast i32* %z to i32*
24 call void @capture_call(i32* %z.alias)
25 %alpha.alias = bitcast i1* %alpha to i32*
26 call void @capture_call(i32* %alpha.alias)
30 %mem = call i8* @llvm.coro.free(token %id, i8* %hdl)
31 call void @free(i8* %mem)
35 call i1 @llvm.coro.end(i8* %hdl, i1 0)
39 ; %x needs to go to the frame since it's escaped; %y will stay as local since it doesn't escape.
40 ; CHECK: %f.Frame = type { void (%f.Frame*)*, void (%f.Frame*)*, i64, i1, i1, [6 x i8], i32, [12 x i8], i32 }
41 ; CHECK-LABEL: define i8* @f()
42 ; CHECK: %[[ALLOC:.+]] = call i8* @aligned_alloc(i32 32, i32 56)
43 ; CHECK-NEXT: call noalias nonnull i8* @llvm.coro.begin(token %id, i8* %[[ALLOC]])
45 declare i8* @llvm.coro.free(token, i8*)
46 declare i32 @llvm.coro.size.i32()
47 declare i32 @llvm.coro.align.i32()
48 declare i8 @llvm.coro.suspend(token, i1)
49 declare void @llvm.coro.resume(i8*)
50 declare void @llvm.coro.destroy(i8*)
52 declare token @llvm.coro.id(i32, i8*, i8*, i8*)
53 declare i1 @llvm.coro.alloc(token)
54 declare i8* @llvm.coro.begin(token, i8*)
55 declare i1 @llvm.coro.end(i8*, i1)
57 declare void @capture_call(i32*)
58 declare void @nocapture_call(i32* nocapture)
59 declare noalias i8* @aligned_alloc(i32, i32)
60 declare void @free(i8*)