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60 lines
2.4 KiB
60 lines
2.4 KiB
4 months ago
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; This checks cases when the 64-bit DWARF debug info should not be generated
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; even if '-dwarf64' is specified.
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; The 64-bit DWARF format was introduced in DWARFv3, so the '-dwarf64' switch
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; should be ignored for earlier versions.
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; RUN: llc -mtriple=x86_64 -dwarf-version=2 -dwarf64 -filetype=obj %s -o - | \
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; RUN: llvm-dwarfdump -debug-line - | \
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; RUN: FileCheck %s --check-prefixes=ELF64,CHECK
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; DWARF64 requires 64-bit relocations, so it is not produced for 32-bit targets.
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; RUN: llc -mtriple=i386 -dwarf-version=5 -dwarf64 -filetype=obj %s -o - | \
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; RUN: llvm-dwarfdump -debug-line - | \
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; RUN: FileCheck %s --check-prefixes=ELF32,CHECK
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; DWARF64 is enabled only for ELF targets. The switch should be ignored for COFF.
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; RUN: llc -mtriple=x86_64-windows-gnu -dwarf-version=5 -dwarf64 -filetype=obj %s -o - | \
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; RUN: llvm-dwarfdump -debug-line - | \
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; RUN: FileCheck %s --check-prefixes=COFF,CHECK
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; DWARF64 is enabled only for ELF targets. The switch should be ignored for Mach-O.
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; RUN: llc -mtriple=x86_64-apple-darwin -dwarf-version=5 -dwarf64 -filetype=obj %s -o - | \
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; RUN: llvm-dwarfdump -debug-line - | \
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; RUN: FileCheck %s --check-prefixes=MACHO,CHECK
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; ELF64: file format elf64-x86-64
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; ELF32: file format elf32-i386
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; COFF: file format COFF-x86-64
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; MACHO: file format Mach-O 64-bit x86-64
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; CHECK: .debug_line contents:
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; CHECK-NEXT: debug_line[0x00000000]
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; CHECK-NEXT: Line table prologue:
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; CHECK-NEXT: total_length:
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; CHECK-NEXT: format: DWARF32
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; IR generated and reduced from:
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; $ cat foo.c
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; int 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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@foo = dso_local global i32 0, align 4, !dbg !0
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!llvm.dbg.cu = !{!2}
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!llvm.module.flags = !{!7, !8, !9}
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!llvm.ident = !{!10}
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!0 = !DIGlobalVariableExpression(var: !1, expr: !DIExpression())
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!1 = distinct !DIGlobalVariable(name: "foo", scope: !2, file: !3, line: 1, type: !6, isLocal: false, isDefinition: true)
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!2 = distinct !DICompileUnit(language: DW_LANG_C99, file: !3, producer: "clang version 12.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !4, globals: !5, splitDebugInlining: false, nameTableKind: None)
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!3 = !DIFile(filename: "foo.c", directory: "/tmp")
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!4 = !{}
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!5 = !{!0}
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!6 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
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!7 = !{i32 7, !"Dwarf Version", i32 4}
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!8 = !{i32 2, !"Debug Info Version", i32 3}
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!9 = !{i32 1, !"wchar_size", i32 4}
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!10 = !{!"clang version 12.0.0"}
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