They cooperate in that NSErrorChecker listens for ImplicitNullDerefEvent events that
DereferenceChecker can dispatch.
ImplicitNullDerefEvent is when we dereferenced a location that may be null.

llvm-svn: 126659

A checker can register as receiver/listener of "events" (basically it registers a callback
with a function getting called with an argument of the event type) and other checkers can
register as "dispatchers" and can pass an event object to all the listeners.
This allows cooperation amongst checkers but with very loose coupling.

llvm-svn: 126658

llvm-svn: 126657

dependent template names. There is still a lot of redundant code in
TreeTransform to cope with TemplateSpecializationTypes, which I'll
remove in stages.

llvm-svn: 126656

patch to the front-end.  Radar 7662569.

llvm-svn: 126655

Make -fobjc-nonfragile-abi and -fgnu-runtime imply -fblocks (unless -fno-blocks is specified), because this combination of flags defines an Objective-C runtime that includes a blocks runtime.

llvm-svn: 126654

llvm-svn: 126653

actually tested on.

llvm-svn: 126652

The implemented algorithm is overly simplistic (just speculate all branches are
taken)- this is work in progress.

llvm-svn: 126651

llvm-svn: 126650

* Add default implementations (no-op) for ExternalASTSource's pure virtual functions. There are valid use cases that can live with these defaults.
* Move ExternalASTSource's out of line implementations into separate source file.
* Whitespace, forward decl, #include cleanup.

llvm-svn: 126648

Based on a patch by Alistair Lynn.

llvm-svn: 126647

The feature "shell" is implemented in llvm/test.

llvm-svn: 126646

llvm-svn: 126645

also have a zero when numerator = denominator. Reverts parts of r126635 and
r126637.

llvm-svn: 126644

PR9343.

llvm-svn: 126643

llvm-svn: 126642

I've only covered C++'s flags here, we should probably do something
similar for ObjC flags.

llvm-svn: 126641

of -fexceptions to disably C++ exceptions. The correct code was in the
ObjC branch, this just mirrors that logic on the C++ side of things.
Thanks to John Wiegley for pointing this out.

llvm-svn: 126640

compound stmt containing the decl is skipped.

llvm-svn: 126639

llvm-svn: 126638

srem instruction.

llvm-svn: 126637

- Add appropriate TableGen patterns for fadd, fsub, fmul.
- Add .f32 as the PTX type for the LLVM float type.
- Allow parameters, return values, and global variable declarations
  to accept the float type.
- Add appropriate test cases.

Patch by Justin Holewinski

llvm-svn: 126636

argument), regardless of the divisor. Teach instcombine about this and fix
test7 in PR9343!

llvm-svn: 126635

llvm-svn: 126634

llvm-svn: 126633

llvm-svn: 126632

The previous name was inaccurate as this token in fact appears at
the end of every preprocessing directive, not just macro definitions.
No functionality change, except for a diagnostic tweak.

llvm-svn: 126631

C++ exceptions, even when exceptions have been turned off using -fno-exceptions.
Make the -fobjc-exceptions flag do the same thing, but for Objective-C exceptions.

C++ and Objective-C exceptions can also be disabled using -fno-cxx-excptions and
-fno-objc-exceptions.

llvm-svn: 126630

llvm-svn: 126629

they are known to be exact multiples of the width of the char type. Add a
test case to CodeGen/union.c that would have caught the problem with the
previous attempt. No change in functionality intended.

llvm-svn: 126628

llvm-svn: 126627

llvm-svn: 126626

llvm-svn: 126625

llvm-svn: 126624

llvm-svn: 126623

llvm-svn: 126622

llvm-svn: 126621

llvm-svn: 126620

llvm-svn: 126619