Author: Sam McCall Date: 2022-05-09T15:55:32+02:00 New Revision: 0195163dbae962ebb48bcba32b6db85919f07370
URL: https://github.com/llvm/llvm-project/commit/0195163dbae962ebb48bcba32b6db85919f07370 DIFF: https://github.com/llvm/llvm-project/commit/0195163dbae962ebb48bcba32b6db85919f07370.diff LOG: [Frontend] when attaching a preamble, don't generate the long predefines buffer. We know we're going to overwrite it anyway. It'd be a bit of work to coordinate not generating it at all, but setting this flag avoids generating ~10k of the 13k string. Differential Revision: https://reviews.llvm.org/D125180 Added: Modified: clang/lib/Frontend/PrecompiledPreamble.cpp Removed: ################################################################################ diff --git a/clang/lib/Frontend/PrecompiledPreamble.cpp b/clang/lib/Frontend/PrecompiledPreamble.cpp index d5aab4aedadd6..e3c3466550492 100644 --- a/clang/lib/Frontend/PrecompiledPreamble.cpp +++ b/clang/lib/Frontend/PrecompiledPreamble.cpp @@ -765,6 +765,10 @@ void PrecompiledPreamble::configurePreamble( PreprocessorOpts.DisablePCHOrModuleValidation = DisableValidationForModuleKind::PCH; + // Don't bother generating the long version of the predefines buffer. + // The preamble is going to overwrite it anyway. + PreprocessorOpts.UsePredefines = false; + setupPreambleStorage(*Storage, PreprocessorOpts, VFS); } _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
