llvm-svn: 63031

which I think is rdar://6527005, and make getDecomposedSpellingLocSlowCase
handle nested spelling locations.

llvm-svn: 63030

llvm-svn: 63029

Token now has a class of kinds for "literals", which include 
numeric constants, strings, etc.  These tokens can optionally have
a pointer to the start of the token in the lexer buffer.  This 
makes it faster to get spelling and do other gymnastics, because we
don't have to go through source locations.

This change is performance neutral, but will make other changes
more feasible down the road.

llvm-svn: 63028

llvm-svn: 63024

llvm-svn: 63020

llvm-svn: 63019

llvm-svn: 63018

llvm-svn: 63016

llvm-svn: 63015

 - Unlike llvm-gcc, this doesn't yet treat -emit-llvm output as a
   linker input.

llvm-svn: 63014

unique the Filenames in #line directives, assigning them UIDs.

llvm-svn: 63010

testing code.

llvm-svn: 63006

the content cache pointer.  This saves 105876 bytes on
cocoa.h because it shrinks the SLocEntry union, which
we have a big array of.  It would be nice to use 
PointerIntPair here, but we can't because it is in a 
union.

llvm-svn: 63004

llvm-svn: 63003

Use tag classes instead of typedefs for GDM entries 'ConstNotEq' and 'ConstEq'.  This avoids collisions in the GDM.

llvm-svn: 63002

llvm-svn: 63001

llvm-svn: 63000

we just discard them.

llvm-svn: 62999

llvm-svn: 62997

llvm-svn: 62996

This reduces fsyntax-only time on c99-intconst-1.c from 2.43s down to 
2.01s (20%), reducing the number of fileid lookups from 2529040 linear 
and 64771121 binary to 5625902 linear and 4151182 binary.

This knocks getFileID down to only 4.6% of compile time on this testcase.
At this point, malloc/free is over 35% of compile time, primarily allocating
MacroArgs objects and their argument preexpansion vectors.

I don't feel like malloc avoiding right now, so I'm just going to call
this good.

llvm-svn: 62994

of a macro.  Since these tokens may themselves be from macro 
expansions, we need to resolve down to the spelling loc when the
macro ends up being instantiated.  Instead of resolving this for
each token expanded from the macro definition, just do it once when
the macro is defined.  This speeds up clang on c99-intconst-1.c from
2.66s to 2.43s (9.5%), reducing the FileID lookups from 407244 linear and
114175649 binary to 2529040 linear and 64771121 binary.

llvm-svn: 62993

per token lexed from it.  This speeds up clang on c99-intconst-1.c from
the GCC testsuite from 3.64s to 2.66s (36%).  This reduces the number of
binary search FileID lookups from 251570522 to 114175649 on this testcase.

llvm-svn: 62992

CompoundLiteralExpr so that there aren't any null pointers in the AST.

llvm-svn: 62981

ground work for implementing #line, and fixes the "out of macro ID's" 
problem.

There is nothing particularly tricky about the code, other than the
very performance sensitive SourceManager::getFileID() method.

llvm-svn: 62978

llvm-svn: 62977

llvm-svn: 62975

llvm-svn: 62974

llvm-svn: 62971

llvm-svn: 62960

llvm-svn: 62959

everything that we aren't intending to implement in Expr::Evaluate.

llvm-svn: 62953

cases it couldn't deal with before.

llvm-svn: 62952

accurately states what the function is trying to do and how it is 
different from Expr::isEvaluatable.  Also get rid of a parameter that is both 
unused and inaccurate.

llvm-svn: 62951

llvm-svn: 62950

__builtin___CFStringMakeConstantString.  (We get into trouble in 
GenerateStaticBlockVarDecl if the constant folder isn't accurate.)

llvm-svn: 62949

constant.

llvm-svn: 62948

llvm-svn: 62947

llvm-svn: 62946