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| author | Alexandre Ganea <aganea@havenstudios.com> | 2024-06-15 11:33:44 -0400 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2024-06-15 11:33:44 -0400 |
| commit | 7cb5faf6da5a6f6335aca8a2532e5320ec434458 (patch) | |
| tree | f68f6aef3523b3d6f3418f583f7f8a8b15055757 /clang/docs | |
| parent | 961dd1ae5ea216024af3aa7d43a57c6b45a023ec (diff) | |
| download | llvm-7cb5faf6da5a6f6335aca8a2532e5320ec434458.zip llvm-7cb5faf6da5a6f6335aca8a2532e5320ec434458.tar.gz llvm-7cb5faf6da5a6f6335aca8a2532e5320ec434458.tar.bz2 | |
[Clang][Driver] Expose `-fno-eliminate-unused-debug-types` to clang-cl (#95259)
This is used to set DebugInfoKind to "UnusedTypeInfo". This helps in the
context of Unreal Engine and NATVIS files that reference unused
otherwise `static constexpr` class members. See
https://udn.unrealengine.com/s/question/0D5QP00000N012h0AB/fname-debug-visualizer-fails-to-work-with-the-clang-compiler
This partially fixes https://github.com/llvm/llvm-project/issues/46924
Diffstat (limited to 'clang/docs')
| -rw-r--r-- | clang/docs/UsersManual.rst | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst index 8e01ea1..d273102 100644 --- a/clang/docs/UsersManual.rst +++ b/clang/docs/UsersManual.rst @@ -3347,6 +3347,9 @@ below. If multiple flags are present, the last one is used. By default, Clang does not emit type information for types that are defined but not used in a program. To retain the debug info for these unused types, the negation **-fno-eliminate-unused-debug-types** can be used. + This can be particulary useful on Windows, when using NATVIS files that + can reference const symbols that would otherwise be stripped, even in full + debug or standalone debug modes. Controlling Macro Debug Info Generation ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ |