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| author | Ilya Biryukov <ibiryukov@google.com> | 2018-07-09 11:33:23 +0000 |
|---|---|---|
| committer | Ilya Biryukov <ibiryukov@google.com> | 2018-07-09 11:33:23 +0000 |
| commit | b5784f85be57b6010e656f881e64ac3d2ad25f6a (patch) | |
| tree | 8a33586103e9be07497a554309b231ff3ba6281f /include/clang/Lex | |
| parent | 9ac30449eb6ff992f22e86c42ea7d626e4ef6973 (diff) | |
[PCH] Add an option to not write comments into PCH
Summary:
Will be used in clangd, see the follow-up change.
Clangd does not use comments read from PCH to avoid crashes due to
changed contents of the file. However, reading them considerably slows
down code completion on files with large preambles.
Reviewers: sammccall
Reviewed By: sammccall
Subscribers: ioeric, cfe-commits
Differential Revision: https://reviews.llvm.org/D48942
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@336539 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Lex')
| -rw-r--r-- | include/clang/Lex/PreprocessorOptions.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/clang/Lex/PreprocessorOptions.h b/include/clang/Lex/PreprocessorOptions.h index f4ec2f27c4..3d7e5ab4a8 100644 --- a/include/clang/Lex/PreprocessorOptions.h +++ b/include/clang/Lex/PreprocessorOptions.h @@ -95,6 +95,11 @@ public: /// processing the rest of the file. bool GeneratePreamble = false; + /// Whether to write comment locations into the PCH when building it. + /// Reading the comments from the PCH can be a performance hit even if the + /// clients don't use them. + bool WriteCommentListToPCH = true; + /// The implicit PTH input included at the start of the translation unit, or /// empty. std::string ImplicitPTHInclude; |