llvm-svn: 40385

Since that point is now long gone, we should rename LexerToken to
Token, as it is the only kind of token we have.

llvm-svn: 40105

fileid/offset pair, it now contains a bit discriminating between
mapped locations and file locations.  This separates the tables for
macros and files in SourceManager, and allows better separation of
concepts in the rest of the compiler.  This allows us to have *many*
macro instantiations before running out of 'addressing space'.

This is also more efficient, because testing whether something is a
macro expansion is now a bit test instead of a table lookup (which
also used to require having a srcmgr around, now it doesn't).

This is fully functional, but there are several refinements and
optimizations left.

llvm-svn: 40103

out of the llvm namespace.  This makes the clang namespace be a sibling of
llvm instead of being a child.

The good thing about this is that it makes many things unambiguous.  The
bad things is that many things in the llvm namespace (notably data structures
like smallvector) now require an llvm:: qualifier.  IMO, libsystem and libsupport
should be split out of llvm into their own namespace in the future, which will fix
this issue.

llvm-svn: 39659

llvm-svn: 39210

state, not aspects of the language standard being parsed.

llvm-svn: 39209

at once.

llvm-svn: 39207

llvm-svn: 39205

of having a loose collection of function pointers.  This also allows clients to
maintain state, and reduces the size of the Preprocessor.h interface.

llvm-svn: 39203

from gcc mainline.

llvm-svn: 39067

llvm-svn: 39013

llvm-svn: 39009

llvm-svn: 38796

llvm-svn: 38784

llvm-svn: 38783

llvm-svn: 38767

llvm-svn: 38708

llvm-svn: 38673

the common case.

llvm-svn: 38671

-E -P mode by 10% (i.e. takes away almost all i/o time).

llvm-svn: 38669

llvm-svn: 38668

llvm-svn: 38667

llvm-svn: 38666

This allows the SourceManager to not compute line number information for each buffer.

llvm-svn: 38665

llvm-svn: 38663

up clang -E iostream by 30%.

llvm-svn: 38660

llvm-svn: 38659

llvm-svn: 38658