[all-commits] [llvm/llvm-project] 2399c7: [Clang][DebugInfo] Clang generates an extra spurio...

[Carlos Alberto Enciso via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2399c77c8593b0ed3bd3988a5b72f8bf6b30b0de
      https://github.com/llvm/llvm-project/commit/2399c77c8593b0ed3bd3988a5b72f8bf6b30b0de
  Author: Carlos Alberto Enciso <47597242+CarlosAlbertoEnciso at users.noreply.github.com>
  Date:   2023-10-25 (Wed, 25 Oct 2023)

  Changed paths:
    M clang/lib/CodeGen/CGDebugInfo.cpp
    M clang/test/CodeGenCXX/debug-info-structured-binding-bitfield.cpp
    M clang/test/CodeGenCXX/debug-info-structured-binding.cpp

  Log Message:
  -----------
  [Clang][DebugInfo] Clang generates an extra spurious unnamed 'dbg.declare' (#69681)

Do not emit call to llvm.dbg.declare when the variable declaration
is a DecompositionDecl as its instance class is always unnamed.

The emitted debug declare looks like:

call void @llvm.dbg.declare(metadata ..., metadata !xx, metadata ...)
!xx = !DILocalVariable(scope: !..., file: !..., line: ..., type: !...)