diff options
| author | Douglas Gregor <dgregor@apple.com> | 2009-07-07 16:35:42 +0000 |
|---|---|---|
| committer | Douglas Gregor <dgregor@apple.com> | 2009-07-07 16:35:42 +0000 |
| commit | c29f77b769bcc5b6dc85e72c8e3cc2e348e5cf25 (patch) | |
| tree | 7d74f6f2933d40483d1d762e4f634c3e153f090e /include/clang/Frontend/PCHBitCodes.h | |
| parent | 0d3c26c76997688eaf7e51764a66815652e09642 (diff) | |
Make ASTContext explicitly keep track of the declaration for the C
FILE type, rather than using name lookup to find FILE within the
translation unit. Within precompiled headers, FILE is treated as yet
another "special type" (like __builtin_va_list).
This change should provide a performance improvement (not verified),
since the lookup into the translation unit declaration
forces the (otherwise unneeded) construction of a large hash table.
More importantly, with precompiled headers, the construction
of that table requires deserializing most of the top-level
declarations from the precompiled header, which are then unused.
Fixes PR 4509.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74911 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'include/clang/Frontend/PCHBitCodes.h')
| -rw-r--r-- | include/clang/Frontend/PCHBitCodes.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/clang/Frontend/PCHBitCodes.h b/include/clang/Frontend/PCHBitCodes.h index 8efaf26cc8..0de6b69432 100644 --- a/include/clang/Frontend/PCHBitCodes.h +++ b/include/clang/Frontend/PCHBitCodes.h @@ -419,7 +419,9 @@ namespace clang { /// \brief CFConstantString type SPECIAL_TYPE_CF_CONSTANT_STRING = 5, /// \brief Objective-C fast enumeration state type - SPECIAL_TYPE_OBJC_FAST_ENUMERATION_STATE = 6 + SPECIAL_TYPE_OBJC_FAST_ENUMERATION_STATE = 6, + /// \brief C FILE typedef type + SPECIAL_TYPE_FILE = 7 }; /// \brief Record codes for each kind of declaration. |