diff --git a/llvm/test/DebugInfo/X86/cfi_sections.ll b/llvm/test/DebugInfo/X86/cfi_sections.ll new file mode 100644 --- /dev/null +++ b/llvm/test/DebugInfo/X86/cfi_sections.ll @@ -0,0 +1,96 @@ +; RUN: split-file %s %t +; RUN: llc < %t/1.ll -mtriple=x86_64 | FileCheck %s --check-prefix=DEBUG_FRAME +; RUN: llc < %t/1.ll -mtriple=x86_64 -force-dwarf-frame-section | FileCheck %s --check-prefix=DEBUG_FRAME +; RUN: llc < %t/2.ll -mtriple=x86_64 | FileCheck %s --check-prefix=EH_FRAME +; RUN: llc < %t/2.ll -mtriple=x86_64 -force-dwarf-frame-section | FileCheck %s --check-prefix=BOTH +; RUN: llc < %t/3.ll -mtriple=x86_64 | FileCheck %s --check-prefix=EH_FRAME +; RUN: llc < %t/3.ll -mtriple=x86_64 -force-dwarf-frame-section | FileCheck %s --check-prefix=BOTH + +; EH_FRAME-NOT: .cfi_sections +; DEBUG_FRAME: .cfi_sections .debug_frame{{$}} +; BOTH: .cfi_sections .eh_frame, .debug_frame{{$}} + +;--- 1.ll +;; No function has uwtable/personality or throws && f needs debug info -> emit .debug_frame + +define void @f() nounwind !dbg !6 { +entry: + ret void +} + +define void @g() nounwind { +entry: + ret void +} + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4, !5} + +!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) +!1 = !DIFile(filename: "a.c", directory: "/tmp") +!2 = !{} +!3 = !{i32 7, !"Dwarf Version", i32 5} +!4 = !{i32 2, !"Debug Info Version", i32 3} +!5 = !{i32 1, !"wchar_size", i32 4} +!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) +!7 = !DISubroutineType(types: !8) +!8 = !{null} +!9 = !DILocation(line: 1, column: 15, scope: !6) + +;--- 2.ll +;; g has uwtable and thus needs .eh_frame + +define void @f() nounwind !dbg !6 { +entry: + ret void +} + +define void @g() nounwind uwtable !dbg !10 { +entry: + ret void +} + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4, !5} + +!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) +!1 = !DIFile(filename: "a.c", directory: "/tmp") +!2 = !{} +!3 = !{i32 7, !"Dwarf Version", i32 5} +!4 = !{i32 2, !"Debug Info Version", i32 3} +!5 = !{i32 1, !"wchar_size", i32 4} +!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) +!7 = !DISubroutineType(types: !8) +!8 = !{null} +!9 = !DILocation(line: 1, column: 15, scope: !6) +!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) +!11 = !DILocation(line: 2, column: 15, scope: !10) + +;--- 3.ll +;; g has no nounwind, so it is treated as throwable. Emit .eh_frame. + +define void @f() nounwind !dbg !6 { +entry: + ret void +} + +define void @g() !dbg !10 { +entry: + ret void +} + +!llvm.dbg.cu = !{!0} +!llvm.module.flags = !{!3, !4, !5} + +!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) +!1 = !DIFile(filename: "a.c", directory: "/tmp") +!2 = !{} +!3 = !{i32 7, !"Dwarf Version", i32 5} +!4 = !{i32 2, !"Debug Info Version", i32 3} +!5 = !{i32 1, !"wchar_size", i32 4} +!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) +!7 = !DISubroutineType(types: !8) +!8 = !{null} +!9 = !DILocation(line: 1, column: 15, scope: !6) +!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) +!11 = !DILocation(line: 2, column: 15, scope: !10) diff --git a/llvm/test/DebugInfo/X86/debug_frame.ll b/llvm/test/DebugInfo/X86/debug_frame.ll deleted file mode 100644 --- a/llvm/test/DebugInfo/X86/debug_frame.ll +++ /dev/null @@ -1,22 +0,0 @@ -; RUN: llc %s -mtriple=i686-pc-linux-gnu -o - | FileCheck %s - -; Test that we produce a .debug_frame, not an .eh_frame - -; CHECK: .cfi_sections .debug_frame - -define void @f() nounwind !dbg !0 { -entry: - ret void -} - -!llvm.dbg.cu = !{!2} -!llvm.module.flags = !{!7} -!5 = !{!0} - -!0 = distinct !DISubprogram(name: "f", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: true, unit: !2, scopeLine: 1, file: !6, scope: !1, type: !3) -!1 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/llvm/build") -!2 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: true, emissionKind: FullDebug, file: !6, enums: !{}, retainedTypes: !{}) -!3 = !DISubroutineType(types: !4) -!4 = !{null} -!6 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/llvm/build") -!7 = !{i32 1, !"Debug Info Version", i32 3}