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| author | Argyrios Kyrtzidis <akyrtzi@gmail.com> | 2013-03-13 21:13:51 +0000 |
|---|---|---|
| committer | Argyrios Kyrtzidis <akyrtzi@gmail.com> | 2013-03-13 21:13:51 +0000 |
| commit | 55ea75bf61a5d76f6453513d937944ce68181c6a (patch) | |
| tree | 20a9ea8eb7950bd1e711a9f326e66d2d3ec6c4bc /include/clang/Serialization | |
| parent | c1d22393628a145e54396c0ac66e9625d13a7658 (diff) | |
[Modules] Don't eagerly load and associate all the module header files.
In a module-enabled Cocoa PCH file, we spend a lot of time stat'ing the headers
in order to associate the FileEntries with their modules and support implicit
module import.
Use a more lazy scheme by enhancing HeaderInfoTable to store extra info about
the module that a header belongs to, and associate it with its module only when
there is a request for loading the header info for a particular file.
Part of rdar://13391765
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176976 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Serialization')
| -rw-r--r-- | include/clang/Serialization/ASTWriter.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/clang/Serialization/ASTWriter.h b/include/clang/Serialization/ASTWriter.h index b966ae1228..1bbf74061f 100644 --- a/include/clang/Serialization/ASTWriter.h +++ b/include/clang/Serialization/ASTWriter.h @@ -641,6 +641,10 @@ public: /// source location. serialization::SubmoduleID inferSubmoduleIDFromLocation(SourceLocation Loc); + /// \brief Retrieve a submodule ID for this module. + /// Returns 0 If no ID has been associated with the module. + unsigned getExistingSubmoduleID(Module *Mod) const; + /// \brief Note that the identifier II occurs at the given offset /// within the identifier table. void SetIdentifierOffset(const IdentifierInfo *II, uint32_t Offset); |