stat a file but where mmaping it fails.  In this case, we emit an
error like:
t.c:1:10: fatal error: error opening file '../../foo.h'

instead of "cannot find file".

llvm-svn: 90110

are updated.

llvm-svn: 84447

 - strcmp -> ==
 - OS.write(II->getName() ...) -> OS << II->getNameStr()
 - Avoid std::string concatenation
 - Use getNameStr().str() when an std::string is really needed.

llvm-svn: 84437

llvm-svn: 81346

llvm-svn: 79916

llvm-svn: 79854

 - Please accept my sincere apologies for the gratuitous elimination of code
   duplication, manual string length counting, unnecessary strlen calls, etc.

llvm-svn: 79448

files to lib/Frontend.

llvm-svn: 72099

filename (or unconditionally using stdout).

llvm-svn: 72085

This allows it to accurately measure tokens, so that we get:

t.cpp:8:13: error: unknown type name 'X'
static foo::X  P;
       ~~~~~^

instead of the woefully inferior:

t.cpp:8:13: error: unknown type name 'X'
static foo::X  P;
       ~~~~ ^

Most of this is just plumbing to push the reference around.

llvm-svn: 69099

low-level frontend driver.

llvm-svn: 68131

Again, I tried to update cmake but it is untested.

llvm-svn: 67605

llvm-svn: 63097

llvm-svn: 62416

"FileID" a concept that is now enforced by the compiler's type checker
instead of yet-another-random-unsigned floating around.

This is an important distinction from the "FileID" currently tracked by
SourceLocation.  *That* FileID may refer to the start of a file or to a
chunk within it.  The new FileID *only* refers to the file (and its 
#include stack and eventually #line data), it cannot refer to a chunk.

FileID is a completely opaque datatype to all clients, only SourceManager
is allowed to poke and prod it.

llvm-svn: 62407

"logical" location, refer to the "instantiation" location.

llvm-svn: 62316

the Backend output should be done in binary mode.
 - I'd appreciate it if someone who has a Windows build could verify
   this.

llvm-svn: 59221

using LexRawToken, create one and use LexFromRawLexer.  This avoids
twiddling the RawLexer flag around and simplifies some code (even 
speeding raw lexing up a tiny bit).

This change also improves the token paster to use a Lexer on the stack
instead of new/deleting it. 

llvm-svn: 57393

"Here is a patch what replaces std::ostream with llvm::raw_ostream. This patch
covers the AST library, but ignores Analysis lib."

llvm-svn: 56185

llvm-svn: 54774

llvm-svn: 54020

everything up front into a vector.  This makes it easier to scan around
the stream when needed.

llvm-svn: 54019

lead with a space.

llvm-svn: 51896

llvm-svn: 51827

macros but doesn't expand #includes, remove comments, remove #defines
etc.

For example:

----
#include <stdio.h>

#define bbaa
#define funclike(x) x "a" x "b" x

bbaa  bbaa

#if 1 
funclike("gar")
foo /*blah*/  bar
bar
#endif

#if 0
funclike()
#endif
----


rewrites to:

----
#include <stdio.h>

#define bbaa
#define funclike(x) x "a" x "b" x 

/*bbaa  bbaa*/

#if 1
 "gar" "a" "gar" "b" "gar"/*funclike*//*("gar")*/
foo /*blah*/  bar
bar
#endif

#if 0
/*funclike()*/
#endif
----

llvm-svn: 50925

llvm-svn: 50920

llvm-svn: 50845