Add a bit to IdentifierInfo that acts as a simple predicate which

tells us whether Preprocessor::HandleIdentifier needs to be called.
Because this method is only rarely needed, this saves a call and a
bunch of random checks.  This drops the time in HandleIdentifier 
from 3.52ms to .98ms on cocoa.h on my machine.

llvm-svn: 62675

1 files changed, 1 insertions, 0 deletions

diff --git a/clang/lib/Basic/IdentifierTable.cpp b/clang/lib/Basic/IdentifierTable.cpp
index d7ef915dab7..304c7a9b42f 100644
--- a/clang/lib/Basic/IdentifierTable.cpp
+++ b/clang/lib/Basic/IdentifierTable.cpp
@@ -32,6 +32,7 @@ IdentifierInfo::IdentifierInfo() {
   IsExtension = false;
   IsPoisoned = false;
   IsCPPOperatorKeyword = false;
+  NeedsHandleIdentifier = false;
   FETokenInfo = 0;
   Entry = 0;
 }