Move the various analyses used by GVN into static variables so we don't have to keep passing them around or refetching them.

llvm-svn: 50963

llvm-svn: 50962

SCCP like sparse lattice analysis with relative ease.  Just pick your
lattice function and implement the transfer function and you're good.
Just make sure you don't break monotonicity ;-)

llvm-svn: 50961

include backslashes on Windows. This should fix llvm-ld problems on win32.

llvm-svn: 50960

llvm-svn: 50959

method.  DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated.  Just call getNameSTart,
which is close enough and doesn't cause heap traffic.

llvm-svn: 50958

llvm-svn: 50957

llvm-svn: 50952

llvm-svn: 50951

llvm-svn: 50950

llvm-svn: 50947

llvm-svn: 50946

llvm-svn: 50945

llvm-svn: 50944

llvm-svn: 50943

llvm-svn: 50941

llvm-svn: 50940

llvm-svn: 50935

llvm-svn: 50931

than silently generate invalid code.

llvm-gcc does not currently use VAArgInst; it lowers va_arg in the
front-end.

llvm-svn: 50930

llvm-svn: 50929

llvm-svn: 50928

If all sources of a PHI node are defined by an implicit_def, just emit an implicit_def instead of a copy.

llvm-svn: 50927

 - Comment fixes.
 - Moar whitespace.
 - Made ivars "private" by default.
No functionality change.

llvm-svn: 50926

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

Rename IsPointerType to LVal::IsLValType, and update CFRefCount::EvalSummary to use IsLValType when conjuring symbols for return values (this fixes a bug with an assertion firing in the analyzer when two qualified objective-c types were compared).

llvm-svn: 50924

-identifierResolver exposes an iterator interface to get all decls through the scope chain.
-The semantic staff (checking IdentifierNamespace and Doug's checking for shadowed tags were moved out of IdentifierResolver and back into Sema. IdentifierResolver just gives an iterator for all reachable decls of an identifier.

llvm-svn: 50923

llvm-svn: 50922

no functional change.

llvm-svn: 50921

llvm-svn: 50920

llvm-svn: 50919

Note, some of the code will be moved into target independent part of DAG combiner in a subsequent patch.

llvm-svn: 50918

llvm-svn: 50917

case where there are multiple blocks with a large
number of common tail instructions more efficiently
(compile time optimization).

llvm-svn: 50916

Fix <rdar://problem/5924225> clang ObjC rewriter: objc_exception_throw declaration in preamble does not match objc/objc-exception.h.

llvm-svn: 50915

DO NOT pre-defined __OBJC2__. The __OBJC2__ macro should only be defined when targeting the new, Apple 2.0 *runtime ABI*. It is not intended to be used to #ifdef ObjC 2.0 langauge features. This is unfortunate (given it's name). In a perfect world, this defined would be named __OBJC2_RUNTIME_ABI__. Oh well.

llvm-svn: 50913

clashes on ::X

llvm-svn: 50912

llvm-svn: 50911

llvm-svn: 50910

llvm-svn: 50909