c8d8e5e210
Extend `DebugInfoFinder` to collect and expose macro debug information (`DIMacro` and `DIMacroFile` nodes). Also update `ModuleDebugInfoPrinter` to display macro information including the macro type, name, value, and source location. ----- The motivation behind this PR is that `DebugInfoFinder` is key for the [SPIRV-LLVM-Translator](https://github.com/KhronosGroup/SPIRV-LLVM-Translator) and also for future support of debug info in the SPIRV backend in LLVM. This new lookup of `DIMacro` with their `DIMacroFile` when available simplifies the logic around the translation for this debug information.
32 lines
1.3 KiB
LLVM
32 lines
1.3 KiB
LLVM
; RUN: opt -passes='print<module-debuginfo>' -disable-output 2>&1 < %s \
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; RUN: | FileCheck %s
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; Macro hierarchy graph:
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; CompileUnit
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; ├── MacroFile: ./def.c (!2)
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; │ ├── Define Macro: 'SIZE' = '5' (!6)
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; │ ├── Undef Macro: 'SIZE' (!7)
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; │ └── MacroFile: ./def.nested.c (!4)
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; │ └── Undef Macro: 'BAZ' (!9)
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; └── Define Macro: 'BAZ' (!8)
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; CHECK: Macro: DW_MACINFO_define 'SIZE' = '5' from ./def.c
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; CHECK: Macro: DW_MACINFO_undef 'SIZE' from ./def.c
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; CHECK: Macro: DW_MACINFO_undef 'BAZ' from ./def.nested.c
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; CHECK: Macro: DW_MACINFO_define 'BAZ' at line 1
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!llvm.module.flags = !{!0, !10}
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!llvm.dbg.cu = !{!1}
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!0 = !{i32 7, !"Dwarf Version", i32 0}
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!1 = distinct !DICompileUnit(language: DW_LANG_OpenCL, file: !3, isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, macros: !{!2, !8})
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!2 = !DIMacroFile(file: !3, nodes: !{!6, !7, !4})
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!3 = !DIFile(filename: "def.c", directory: ".")
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!4 = !DIMacroFile(file: !5, nodes: !{!9})
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!5 = !DIFile(filename: "def.nested.c", directory: ".")
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!6 = !DIMacro(type: DW_MACINFO_define, line: 1, name: "SIZE", value: "5")
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!7 = !DIMacro(type: DW_MACINFO_undef, line: 1, name: "SIZE")
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!8 = !DIMacro(type: DW_MACINFO_define, line: 1, name: "BAZ")
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!9 = !DIMacro(type: DW_MACINFO_undef, line: 1, name: "BAZ")
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!10 = !{i32 2, !"Debug Info Version", i32 3}
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