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bac464f625
The patch adds a switch to enable emitting debug info in the 64-bit DWARF format. Most emitter for sections will be updated in the subsequent patches, whereas for .debug_line and .debug_frame the emitters are in the MC library, which is already updated. For now, the switch is enabled only for 64-bit ELF targets. Differential Revision: https://reviews.llvm.org/D87011
38 lines
1.4 KiB
LLVM
38 lines
1.4 KiB
LLVM
; This checks that .debug_frame can be generated in the DWARF64 format.
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; RUN: llc -mtriple=x86_64 -dwarf64 -force-dwarf-frame-section -filetype=obj %s -o %t
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; RUN: llvm-dwarfdump -debug-frame %t | FileCheck %s
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; CHECK: .debug_frame contents:
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; CHECK: 00000000 {{.+}} ffffffffffffffff CIE
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; CHECK-NEXT: Format: DWARF64
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; CHECK: {{.+}} 0000000000000000 FDE cie=00000000 pc=
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; CHECK-NEXT: Format: DWARF64
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; IR generated and reduced from:
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; $ cat foo.c
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; void foo() { }
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; $ clang -g -S -emit-llvm foo.c -o foo.ll
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target triple = "x86_64-unknown-linux-gnu"
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define dso_local void @foo() #0 !dbg !7 {
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ret void, !dbg !10
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}
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!llvm.dbg.cu = !{!0}
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!llvm.module.flags = !{!3, !4, !5}
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!llvm.ident = !{!6}
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!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None)
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!1 = !DIFile(filename: "foo.c", directory: "/tmp")
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!2 = !{}
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!3 = !{i32 7, !"Dwarf Version", i32 4}
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!4 = !{i32 2, !"Debug Info Version", i32 3}
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!5 = !{i32 1, !"wchar_size", i32 4}
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!6 = !{!"clang version 12.0.0"}
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!7 = distinct !DISubprogram(name: "foo", scope: !1, file: !1, line: 1, type: !8, scopeLine: 1, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2)
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!8 = !DISubroutineType(types: !9)
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!9 = !{null}
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!10 = !DILocation(line: 1, column: 14, scope: !7)
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