1; RUN: opt -hotcoldsplit -hotcoldsplit-threshold=0 -S < %s | FileCheck %s
2
3; When an llvm.dbg.label intrinsic is extracted into a new function, make sure
4; that its metadata argument is a DILabel that points to a scope within the new
5; function.
6;
7; In this example, the label "bye" points to the scope for @foo before
8; splitting, and should point to the scope for @foo.cold.1 after splitting.
9
10target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
11target triple = "x86_64-apple-macosx10.14.0"
12
13; CHECK-LABEL: define {{.*}}@foo.cold.1
14; CHECK: llvm.dbg.label(metadata [[LABEL:![0-9]+]]), !dbg [[LINE:![0-9]+]]
15
16; CHECK: [[FILE:![0-9]+]] = !DIFile
17; CHECK: [[SCOPE:![0-9]+]] = distinct !DISubprogram(name: "foo.cold.1"
18; CHECK: [[LINE]] = !DILocation(line: 1, column: 1, scope: [[SCOPE]]
19; CHECK: [[LABEL]] = !DILabel(scope: [[SCOPE]], name: "bye", file: [[FILE]], line: 28
20
21define void @foo(i32 %arg1) !dbg !6 {
22entry:
23  %var = add i32 0, 0, !dbg !11
24  br i1 undef, label %if.then, label %if.end
25
26if.then:                                          ; preds = %entry
27  ret void
28
29if.end:                                           ; preds = %entry
30  call void @llvm.dbg.label(metadata !12), !dbg !11
31  call void @sink()
32  ret void
33}
34
35declare void @llvm.dbg.label(metadata)
36
37declare void @sink() cold
38
39!llvm.dbg.cu = !{!0}
40!llvm.debugify = !{!3, !4}
41!llvm.module.flags = !{!5}
42
43!0 = distinct !DICompileUnit(language: DW_LANG_C, file: !1, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2)
44!1 = !DIFile(filename: "<stdin>", directory: "/")
45!2 = !{}
46!3 = !{i32 7}
47!4 = !{i32 1}
48!5 = !{i32 2, !"Debug Info Version", i32 3}
49!6 = distinct !DISubprogram(name: "foo", linkageName: "foo", scope: null, file: !1, line: 1, type: !7, isLocal: false, isDefinition: true, scopeLine: 1, isOptimized: true, unit: !0, retainedNodes: !8)
50!7 = !DISubroutineType(types: !2)
51!8 = !{!9}
52!9 = !DILocalVariable(name: "1", scope: !6, file: !1, line: 1, type: !10)
53!10 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
54!11 = !DILocation(line: 1, column: 1, scope: !6)
55!12 = !DILabel(scope: !6, name: "bye", file: !1, line: 28)
56