diff options
| author | Ted Kremenek <kremenek@apple.com> | 2012-09-13 06:41:18 +0000 |
|---|---|---|
| committer | Ted Kremenek <kremenek@apple.com> | 2012-09-13 06:41:18 +0000 |
| commit | 127ff2ea6440c3da4b47f9c8b3b190254a97e7b5 (patch) | |
| tree | d35146c4b5db3a3249711902fce355f32da6e1d0 /lib | |
| parent | dc6cc87ab68091a714526b391e2a1291d84d485e (diff) | |
Conditionally parse documentation comments in system headers by
passing -fretain-comments-from-system-headers. By default, the
compiler no longer parses such documentation comments, as they
can result in a noticeable compile time/PCH slowdown.
Fixes <rdar://problem/11860820>.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@163778 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Driver/Tools.cpp | 3 | ||||
| -rw-r--r-- | lib/Frontend/CompilerInvocation.cpp | 3 | ||||
| -rw-r--r-- | lib/Sema/Sema.cpp | 3 |
3 files changed, 9 insertions, 0 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp index c10df6fc63..f26ed159d1 100644 --- a/lib/Driver/Tools.cpp +++ b/lib/Driver/Tools.cpp @@ -2785,6 +2785,9 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA, CmdArgs.push_back(Args.MakeArgString(A->getValue(Args))); } + if (Args.hasArg(options::OPT_fretain_comments_from_system_headers)) + CmdArgs.push_back("-fretain-comments-from-system-headers"); + // Forward -Xclang arguments to -cc1, and -mllvm arguments to the LLVM option // parser. Args.AddAllArgValues(CmdArgs, options::OPT_Xclang); diff --git a/lib/Frontend/CompilerInvocation.cpp b/lib/Frontend/CompilerInvocation.cpp index 6d6dbfcc28..6d34425e13 100644 --- a/lib/Frontend/CompilerInvocation.cpp +++ b/lib/Frontend/CompilerInvocation.cpp @@ -2151,6 +2151,9 @@ static void ParseLangArgs(LangOptions &Opts, ArgList &Args, InputKind IK, Opts.EmitMicrosoftInlineAsm = Args.hasArg(OPT_fenable_experimental_ms_inline_asm); + Opts.RetainCommentsFromSystemHeaders = + Args.hasArg(OPT_fretain_comments_from_system_headers); + unsigned SSP = Args.getLastArgIntValue(OPT_stack_protector, 0, Diags); switch (SSP) { default: diff --git a/lib/Sema/Sema.cpp b/lib/Sema/Sema.cpp index fd57bbc237..bd7c8515f6 100644 --- a/lib/Sema/Sema.cpp +++ b/lib/Sema/Sema.cpp @@ -1026,6 +1026,9 @@ LambdaScopeInfo *Sema::getCurLambda() { } void Sema::ActOnComment(SourceRange Comment) { + if (!LangOpts.RetainCommentsFromSystemHeaders && + SourceMgr.isInSystemHeader(Comment.getBegin())) + return; RawComment RC(SourceMgr, Comment); if (RC.isAlmostTrailingComment()) { SourceRange MagicMarkerRange(Comment.getBegin(), |