- Add check for returning an undefined value to a caller.

llvm-svn: 59764

llvm-svn: 59762

write-barriers.

llvm-svn: 59748

- Move PTHLexer::GetToken() to be inside PTHLexer.cpp.
- When lexing in raw mode, null out identifiers.

llvm-svn: 59744

llvm-svn: 59743

llvm-svn: 59740

to static function. Added comments.

llvm-svn: 59738

llvm-svn: 59736

llvm-svn: 59735

- Rename 'CurToken' and 'LastToken' to 'CurTokenIdx' and 'LastTokenIdx'
  respectively.
- Add helper methods GetToken(), AdvanceToken(), AtLastToken() to abstract away
  details of the token stream. This also allows us to easily replace their
  implementation later.

llvm-svn: 59733

expression (smart_ptr->mem).

llvm-svn: 59732

llvm-svn: 59731

Output 'ANALYZE' messages to standard error.  This should address the intermixing of 'ANALYZE' and the other diagnostics the clang driver emits to standard error.

llvm-svn: 59730

llvm-svn: 59729

 - This is fairly gross but although the code is conceptually the
   same, introducting the union causes gcc 4.2 on x86 (darwin, if that
   matters) to pessimize LexTokenInternal which is critical to our
   preprocessor performance.

This speeds up -Eonly lexing of Cocoa.h by ~4.7% in my timings and
reduces the code size of LexTokenInternal by 8.6%.

llvm-svn: 59725

Rewrote PTHLexer::Lex by digging through the sources of Lexer again.  Now we can do basic macro expansion using the PTHLexer.

llvm-svn: 59724

(temporary hack) to test the PTHLexer is that whenever we would create a Lexer
object we instead raw lex a memory buffer first and then use the PTHLexer. This
logic exists only to driver the PTHLexer and will be removed/changed in the
future. Note that the regular path using normal Lexer objects is what is used by
default.

llvm-svn: 59723

Added virtual method 'IndirectLex' to PTHLexer.  This will likely get removed in the future when we correctly handle #include processing.

llvm-svn: 59722

Preprocessor::isCurrentLexer() now takes a PreprocessorLexer* argument to match against CurPPLexer instead of CurLexer.

llvm-svn: 59721

llvm-svn: 59716

llvm-svn: 59714

llvm-svn: 59713

llvm-svn: 59712

of doing the lookup_decl, the hash lookup is cheap.  Also,
typeid doesn't happen enough in real world code to worry about
it.

I'd like to eventually get rid of KnownFunctionIDs from Sema
also, but today is not that day.

llvm-svn: 59711

looking up the "std" identifier is trivial.  Just do it, particularly
since this is only done if the namespace hasn't already been looked up.

llvm-svn: 59710

used in one cold place.

llvm-svn: 59709

just check for it when needed.  It doesn't incur real cost
in any hot paths.

llvm-svn: 59708

from Sebastian to enforce that a literal string is passed in,
and use this to avoid having to call strlen on it.

llvm-svn: 59706

llvm-svn: 59695

a Lexer*. This means it will either return the current (normal) file Lexer or a
PTHLexer.

llvm-svn: 59694

information. A diff of the -E output for Cocoa.h shows that there is no change
in output.

llvm-svn: 59693

Assign the result of getCurrentFileLexer() to a PreprocessorLexer* instead of Lexer* (narrower interface).

llvm-svn: 59691

  LexingRawMode in the ctor of PreprocessorLexer.

- PTHLexer: Use "LastToken" instead of "NumToken"

llvm-svn: 59690

Add (untested) implementation of PTHLexer::isNextPPTokenLParen() and PTHLexer::DiscardToEndOfLine().

llvm-svn: 59687

llvm-svn: 59684

llvm-svn: 59683

diagnostics on use of __weak attribute on fields,
Early support for read/write barriers for objc fields.

llvm-svn: 59682

llvm-svn: 59675

being called to be converted to a reference-to-function,
pointer-to-function, or reference-to-pointer-to-function. This is done
through "surrogate" candidate functions that model the conversions
from the object to the function (reference/pointer) and the
conversions in the arguments.

llvm-svn: 59674

llvm-svn: 59673