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
9 ; EH_FRAME-NOT: .cfi_sections
10 ; DEBUG_FRAME: .cfi_sections .debug_frame{{$}}
11 ; BOTH: .cfi_sections .eh_frame, .debug_frame{{$}}
14 ;; No function has uwtable/personality or throws && f needs debug info -> emit .debug_frame
16 define void @f() nounwind !dbg !6 {
21 define void @g() nounwind {
27 !llvm.module.flags = !{!3, !4, !5}
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")
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)
38 !9 = !DILocation(line: 1, column: 15, scope: !6)
41 ;; g has uwtable and thus needs .eh_frame
43 define void @f() nounwind !dbg !6 {
48 define void @g() nounwind uwtable !dbg !10 {
54 !llvm.module.flags = !{!3, !4, !5}
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")
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)
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)
70 ;; g has no nounwind, so it is treated as throwable. Emit .eh_frame.
72 define void @f() nounwind !dbg !6 {
77 define void @g() !dbg !10 {
83 !llvm.module.flags = !{!3, !4, !5}
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")
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)
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)