This checker was created by Jim Goodnow II, and I migrated it to the
new Checker interface (recent changes by Argiris).

llvm-svn: 127525

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

llvm-svn: 126626

llvm-svn: 126624

llvm-svn: 126623

llvm-svn: 126621

llvm-svn: 126620

llvm-svn: 126619

llvm-svn: 126618

llvm-svn: 126617

llvm-svn: 126616

llvm-svn: 126615

llvm-svn: 126614

llvm-svn: 126613

-Now it gets enabled with '-analyzer-checker=DeadStores'.
-The driver passes the above flag by default.

llvm-svn: 126612

llvm-svn: 126611

llvm-svn: 126610

Turns -analyzer-check-buffer-overflows into -analyzer-checker=core.experimental.Overflow

llvm-svn: 126609

llvm-svn: 126608

llvm-svn: 126606

llvm-svn: 126523

llvm-svn: 126522

For example, if 'core.experimental.UnreachableCode' is hidden, it should not be enabled with 'core.experimental'.
Note that this requires llvm commit r126436.

llvm-svn: 126439

llvm-svn: 126438

llvm-svn: 126371

llvm-svn: 126369

The relative checker package is 'debug':

'-dump-live-variables' is replaced by '-analyzer-checker=debug.DumpLiveVars'
'-cfg-view' is replaced by '-analyzer-checker=debug.ViewCFG'
'-cfg-dump' is replaced by '-analyzer-checker=debug.DumpCFG'

llvm-svn: 125780

  DeadStoresChecker
  ObjCMethSigsChecker
  ObjCUnusedIvarsChecker
  SizeofPointerChecker
  ObjCDeallocChecker
  SecuritySyntaxChecker

llvm-svn: 125779

-Introduce CheckerV2, a set of templates for convenient declaration & registration of checkers.
 Currently useful just for checkers working on the AST not the path-sensitive ones.
-Enhance CheckerManager to actually collect the checkers and turn it into the entry point for
 running the checkers.
-Use the new mechanism for the LLVMConventionsChecker.

llvm-svn: 125778

  NilArgChecker
  CFNumberCreateChecker
  NSAutoreleasePoolChecker
  CFRetainReleaseChecker
  ClassReleaseChecker

llvm-svn: 125636

  CastToStructChecker
  FixedAddressChecker
  PointerArithChecker
  PointerSubChecker

llvm-svn: 125612

llvm-svn: 125611

   CStringChecker
   ChrootChecker
   MallocChecker
   PthreadLockChecker
   StreamChecker
   UnreachableCodeChecker

MallocChecker creates implicit dependencies between checkers and needs to be handled differently.

llvm-svn: 125598

-Update tablegen files for checkers, use the tablegen class name for the checker class name.
-Update ClangSACheckersProvider to not look into hidden checker packages.

llvm-svn: 125560

StackAddrLeakChecker
ObjCAtSyncChecker
UnixAPIChecker
MacOSXAPIChecker

The rest have/create implicit dependencies between checkers and need to be handled differently.

llvm-svn: 125559

-Checkers will be defined in the tablegen file 'Checkers.td'.
-Apart from checkers, we can define checker "packages" that will contain a collection of checkers.
-Checkers can be enabled with -analyzer-checker=<name> and disabled with -analyzer-disable-checker=<name> e.g:
	Enable checkers from 'cocoa' and 'corefoundation' packages except the self-initialization checker:
	-analyzer-checker=cocoa -analyzer-checker=corefoundation -analyzer-disable-checker=cocoa.SelfInit
-Introduces CheckerManager and CheckerProvider. CheckerProviders get the set of checker names to enable/disable and
 register them with the CheckerManager which will be the entry point for all checker-related functionality.

Currently only the self-initialization checker takes advantage of the new mechanism.

llvm-svn: 125503