diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/Lex/PPMacroExpansion.cpp | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/Lex/PPMacroExpansion.cpp b/lib/Lex/PPMacroExpansion.cpp index 20ebb40f53..5cd656527b 100644 --- a/lib/Lex/PPMacroExpansion.cpp +++ b/lib/Lex/PPMacroExpansion.cpp @@ -116,6 +116,11 @@ static bool isTrivialSingleTokenExpansion(const MacroInfo *MI, // If the token isn't an identifier, it's always literally expanded. if (II == 0) return true; + // If the information about this identifier is out of date, update it from + // the external source. + if (II->isOutOfDate()) + PP.getExternalSource()->updateOutOfDateIdentifier(*II); + // If the identifier is a macro, and if that macro is enabled, it may be // expanded so it's not a trivial expansion. if (II->hasMacroDefinition() && PP.getMacroInfo(II)->isEnabled() && |