xref: /llvm-project/llvm/test/Transforms/Coroutines/coro-noop.ll (revision 304838e828f9a0de5594cc203c519cb45867b047)
1; Tests that CoroEarly pass correctly lowers coro.noop
2; RUN: opt < %s -S -passes=coro-early | FileCheck %s
3
4; CHECK: %NoopCoro.Frame = type { ptr, ptr }
5; CHECK: @NoopCoro.Frame.Const = private constant %NoopCoro.Frame { ptr @__NoopCoro_ResumeDestroy, ptr @__NoopCoro_ResumeDestroy }
6
7
8; CHECK-LABEL: @noop(
9define ptr @noop() {
10; CHECK-NEXT: entry
11entry:
12; CHECK-NEXT: ret ptr @NoopCoro.Frame.Const
13  %n = call ptr @llvm.coro.noop()
14  ret ptr %n
15}
16
17declare ptr @llvm.coro.noop()
18
19!llvm.dbg.cu = !{!0}
20!llvm.module.flags = !{!3, !4}
21
22!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "hand-written", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
23!1 = !DIFile(filename: "<stdin>", directory: "")
24!2 = !{}
25!3 = !{i32 2, !"Dwarf Version", i32 4}
26!4 = !{i32 2, !"Debug Info Version", i32 3}
27
28
29; CHECK: define private fastcc void @__NoopCoro_ResumeDestroy(ptr %0) !dbg ![[RESUME:[0-9]+]] {
30; CHECK-NEXT: entry
31; CHECK-NEXT:    ret void
32
33; CHECK: ![[RESUME]] = distinct !DISubprogram(name: "__NoopCoro_ResumeDestroy", linkageName: "__NoopCoro_ResumeDestroy", {{.*}} flags: DIFlagArtificial,
34