xref: /llvm-project/llvm/test/Transforms/Coroutines/coro-frame-arrayalloca.ll (revision 51d5d7bbae92493a5bfa7cc6b519de8a5bb32fdb) 
1; Check that we can handle spills of array allocas
2; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
3
4declare void @consume.double.ptr(ptr)
5declare void @consume.i32.ptr(ptr)
6
7define ptr @f() presplitcoroutine {
8entry:
9  %prefix = alloca double
10  %data = alloca i32, i32 4
11  %suffix = alloca double
12  %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
13  %size = call i32 @llvm.coro.size.i32()
14  %alloc = call ptr @malloc(i32 %size)
15  %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
16  call void @consume.double.ptr(ptr %prefix)
17  call void @consume.i32.ptr(ptr %data)
18  call void @consume.double.ptr(ptr %suffix)
19  %0 = call i8 @llvm.coro.suspend(token none, i1 false)
20  switch i8 %0, label %suspend [i8 0, label %resume
21                                i8 1, label %cleanup]
22resume:
23  call void @consume.double.ptr(ptr %prefix)
24  call void @consume.i32.ptr(ptr %data)
25  call void @consume.double.ptr(ptr %suffix)
26  br label %cleanup
27
28cleanup:
29  %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
30  call void @free(ptr %mem)
31  br label %suspend
32suspend:
33  call i1 @llvm.coro.end(ptr %hdl, i1 0, token none)
34  ret ptr %hdl
35}
36
37; See if the array alloca was stored as an array field.
38; CHECK-LABEL: %f.Frame = type { ptr, ptr, double, double, [4 x i32], i1 }
39
40; See if we used correct index to access prefix, data, suffix (@f)
41; CHECK-LABEL: @f(
42; CHECK:       %[[PREFIX:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 2
43; CHECK-NEXT:  %[[DATA:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 4
44; CHECK-NEXT:  %[[SUFFIX:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 3
45; CHECK-NEXT:  call void @consume.double.ptr(ptr %[[PREFIX:.+]])
46; CHECK-NEXT:  call void @consume.i32.ptr(ptr %[[DATA:.+]])
47; CHECK-NEXT:  call void @consume.double.ptr(ptr %[[SUFFIX:.+]])
48; CHECK: ret ptr
49
50; See if we used correct index to access prefix, data, suffix (@f.resume)
51; CHECK-LABEL: @f.resume(
52; CHECK:       %[[PREFIX:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 2
53; CHECK:       %[[DATA:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 4
54; CHECK:       %[[SUFFIX:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 3
55; CHECK:       call void @consume.double.ptr(ptr %[[PREFIX]])
56; CHECK-NEXT:  call void @consume.i32.ptr(ptr %[[DATA]])
57; CHECK-NEXT:  call void @consume.double.ptr(ptr %[[SUFFIX]])
58
59declare ptr @llvm.coro.free(token, ptr)
60declare i32 @llvm.coro.size.i32()
61declare i8  @llvm.coro.suspend(token, i1)
62declare void @llvm.coro.resume(ptr)
63declare void @llvm.coro.destroy(ptr)
64
65declare token @llvm.coro.id(i32, ptr, ptr, ptr)
66declare i1 @llvm.coro.alloc(token)
67declare ptr @llvm.coro.begin(token, ptr)
68declare i1 @llvm.coro.end(ptr, i1, token)
69
70declare noalias ptr @malloc(i32)
71declare double @print(double)
72declare void @free(ptr)
73