[all-commits] [llvm/llvm-project] 1143a0: [DebugInfo][DWARF] Emit DW_AT_abstract_origin for ...

[Vladislav Dzhidzhoev via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1143a04f349c4081a1a2d2503046f6ca422aa338
      https://github.com/llvm/llvm-project/commit/1143a04f349c4081a1a2d2503046f6ca422aa338
  Author: Vladislav Dzhidzhoev <vdzhidzhoev at accesssoftek.com>
  Date:   2025-04-24 (Thu, 24 Apr 2025)

  Changed paths:
    M llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
    M llvm/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
    M llvm/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
    M llvm/test/DebugInfo/Generic/inline-scopes.ll
    A llvm/test/DebugInfo/Generic/lexical-block-abstract-origin.ll
    M llvm/test/DebugInfo/X86/lexical-block-file-inline.ll
    M llvm/test/DebugInfo/X86/missing-abstract-variable.ll

  Log Message:
  -----------
  [DebugInfo][DWARF] Emit DW_AT_abstract_origin for concrete/inlined DW_TAG_lexical_blocks (#136205)

During the discussion under
https://github.com/llvm/llvm-project/pull/119001, it was noticed that
concrete DW_TAG_lexical_blocks should refer to corresponding abstract
DW_TAG_lexical_blocks by having DW_AT_abstract_origin, to avoid
ambiguity. This behavior is implemented in GCC
(https://godbolt.org/z/Khrzdq1Wx), but not in LLVM.

Fixes https://github.com/llvm/llvm-project/issues/49297.



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