xref: /llvm-project/llvm/test/DebugInfo/X86/cfi_sections.ll (revision b7c6697813af21fc2bf1a87e1d66d79caea3d790)
1; RUN: split-file %s %t
2; RUN: llc < %t/1.ll -mtriple=x86_64 | FileCheck %s --check-prefix=DEBUG_FRAME
3; RUN: llc < %t/1.ll -mtriple=x86_64 -force-dwarf-frame-section | FileCheck %s --check-prefix=DEBUG_FRAME
4; RUN: llc < %t/2.ll -mtriple=x86_64 | FileCheck %s --check-prefix=EH_FRAME
5; RUN: llc < %t/2.ll -mtriple=x86_64 -force-dwarf-frame-section | FileCheck %s --check-prefix=BOTH
6; RUN: llc < %t/3.ll -mtriple=x86_64 | FileCheck %s --check-prefix=EH_FRAME
7; RUN: llc < %t/3.ll -mtriple=x86_64 -force-dwarf-frame-section | FileCheck %s --check-prefix=BOTH
8
9; EH_FRAME-NOT: .cfi_sections
10; DEBUG_FRAME: .cfi_sections .debug_frame{{$}}
11; BOTH: .cfi_sections .eh_frame, .debug_frame{{$}}
12
13;--- 1.ll
14;; No function has uwtable/personality or throws && f needs debug info -> emit .debug_frame
15
16define void @f() nounwind !dbg !6 {
17entry:
18  ret void
19}
20
21define void @g() nounwind {
22entry:
23  ret void
24}
25
26!llvm.dbg.cu = !{!0}
27!llvm.module.flags = !{!3, !4, !5}
28
29!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
30!1 = !DIFile(filename: "a.c", directory: "/tmp")
31!2 = !{}
32!3 = !{i32 7, !"Dwarf Version", i32 5}
33!4 = !{i32 2, !"Debug Info Version", i32 3}
34!5 = !{i32 1, !"wchar_size", i32 4}
35!6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !7, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
36!7 = !DISubroutineType(types: !8)
37!8 = !{null}
38!9 = !DILocation(line: 1, column: 15, scope: !6)
39
40;--- 2.ll
41;; g has uwtable and thus needs .eh_frame
42
43define void @f() nounwind !dbg !6 {
44entry:
45  ret void
46}
47
48define void @g() nounwind uwtable !dbg !10 {
49entry:
50  ret void
51}
52
53!llvm.dbg.cu = !{!0}
54!llvm.module.flags = !{!3, !4, !5}
55
56!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
57!1 = !DIFile(filename: "a.c", directory: "/tmp")
58!2 = !{}
59!3 = !{i32 7, !"Dwarf Version", i32 5}
60!4 = !{i32 2, !"Debug Info Version", i32 3}
61!5 = !{i32 1, !"wchar_size", i32 4}
62!6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !7, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
63!7 = !DISubroutineType(types: !8)
64!8 = !{null}
65!9 = !DILocation(line: 1, column: 15, scope: !6)
66!10 = distinct !DISubprogram(name: "g", scope: !1, file: !1, line: 2, type: !7, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
67!11 = !DILocation(line: 2, column: 15, scope: !10)
68
69;--- 3.ll
70;; g has no nounwind, so it is treated as throwable. Emit .eh_frame.
71
72define void @f() nounwind !dbg !6 {
73entry:
74  ret void
75}
76
77define void @g() !dbg !10 {
78entry:
79  ret void
80}
81
82!llvm.dbg.cu = !{!0}
83!llvm.module.flags = !{!3, !4, !5}
84
85!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 13.0.0", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
86!1 = !DIFile(filename: "a.c", directory: "/tmp")
87!2 = !{}
88!3 = !{i32 7, !"Dwarf Version", i32 5}
89!4 = !{i32 2, !"Debug Info Version", i32 3}
90!5 = !{i32 1, !"wchar_size", i32 4}
91!6 = distinct !DISubprogram(name: "f", scope: !1, file: !1, line: 1, type: !7, scopeLine: 1, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
92!7 = !DISubroutineType(types: !8)
93!8 = !{null}
94!9 = !DILocation(line: 1, column: 15, scope: !6)
95!10 = distinct !DISubprogram(name: "g", scope: !1, file: !1, line: 2, type: !7, scopeLine: 2, flags: DIFlagPrototyped | DIFlagAllCallsDescribed, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !0, retainedNodes: !2)
96!11 = !DILocation(line: 2, column: 15, scope: !10)
97