output on darwin so is hard coded there.

As a note this will need a little bit of refactoring in the class
hierarchy to separate it out for different verifiers based on input type.

Fixes rdar://8256258.

llvm-svn: 138343

stmt expression, recursively walk down all substatements 
of the stmt expression. // rdar://10001085

llvm-svn: 138334

This matches gcc's behavior.

llvm-svn: 138324

[analyzer] Only allocate retain summaries for interesting functions/messages. This is a minor saving of memory but doesn't seem to cost any performance.

llvm-svn: 138320

For the test case added to function-redecl.cpp, we were previously complaining
about a mismatch in the parameter types, since the definition used the
typedef'd type.

llvm-svn: 138318

is captured by a given statement expression. // rdar://10001085

llvm-svn: 138314

[analyzer] Rename CFRefCount's evalSummary method to evalCallOrMessage, since it no longer, uh, evaluates call summaries.

llvm-svn: 138313

llvm-svn: 138310

[analyzer] Migrate the handling of retain-count-related RetEffects and ArgEffects from CFRefCount to RetainReleaseChecker. No intended functionality change.

llvm-svn: 138309

[analyzer] MacOSKeychainAPIChecker: Users of KeyChain API often use free() to deallocate the password. Catch this error explicitly and generate the error message at the place where free() is called.

llvm-svn: 138296

llvm-svn: 138276

Static Analyzer Diagnostics: Allow checkers to add ExtraDescriptiveText, now renamed into ExtraText, to the diagnostic without subclassing BugReport. 

llvm-svn: 138272

objc's decl context.

llvm-svn: 138267

Do not perform check for missing '[super dealloc]' under ARC as calling -dealloc is illegal in that mode.

llvm-svn: 138261

llvm-svn: 138259

llvm-svn: 138257

llvm-svn: 138253

a context switching object.

llvm-svn: 138248

This matches gcc's logic. Half of PR10661.

llvm-svn: 138240

  const int &x = x;

This crashed by inifinetly recursing within the lvalue evaluation
routine. I've added a (somewhat) braindead way of preventing this
recursion. If folks have better suggestions for how to avoid it I'm all
ears.

That said, we have some work to do. This doesn't trigger a single
warning for uninitialized, self-initialized or otherwise completely
wrong code. In some senses, the crash was almost better.

llvm-svn: 138239

llvm-svn: 138235

failures are resolved.

llvm-svn: 138234

Currently getMacroArgExpandedLocation is very inefficient and for the case
of a location pointing at the main file it will end up checking almost all of
the SLocEntries. Make it faster:

-Use a map of macro argument chunks to their expanded source location. The map
 is for a single source file, it's stored in the file's ContentCache and lazily
 computed, like the source lines cache.
-In SLocEntry's FileInfo add an 'unsigned NumCreatedFIDs' field that keeps track
 of the number of FileIDs (files and macros) that were created during preprocessing
 of that particular file SLocEntry. This is useful when computing the macro argument
 map in skipping included files while scanning for macro arg FileIDs that lexed from
 a specific source file. Due to padding, the new field does not increase the size
 of SLocEntry.

llvm-svn: 138225

[analyzer] Migrate the aliasing effects of CFRetain and CFMakeCollectable from CFRefCount to RetainReleaseChecker. No intended functionality change.

llvm-svn: 138223

[analyzer] Remove FIXME; Ted reminded me that -init is not guaranteed to return its receiver and pretending that it does won't actually buy us anything. (Comment change only.)

llvm-svn: 138221

[analyzer] Migrate return value handling from CFRefCount to ExprEngine. This seems to result in a minor performance hit, but I think that will go away again once we eliminate TransferFuncs from function calls entirely.

llvm-svn: 138220

llvm-svn: 138215

llvm-svn: 138214

[analyzer] RetainReleaseChecker always wants region change updates. There's no need for a flag, at least not right now.

llvm-svn: 138212

llvm-svn: 138211

[analyzer] Move handling of hardcoded noreturn ("panic") methods from CFRefCount to NoReturnFunctionChecker. No functionality change intended.

llvm-svn: 138210

llvm-svn: 138200

[analyzer] Handle reads of ObjCPropertyRefExprs implicitly in Environment.  No need to bind an explicit value and create a new node.

llvm-svn: 138196

[analyzer] Simplify ExprEngine::VisitBinaryOperator() by removing recursive visit to subexpressions (which is no longer needed).

llvm-svn: 138195

of the analysis (e.g., analysis of C expressions, analysis of Objective-C expressions, and so on).

llvm-svn: 138194

llvm-svn: 138193

different modules) more robust. It already handled (simple) merges of
the set of declarations attached to that identifier, so add a test
case that shows us getting two different declarations for the same
identifier (one struct, one function) from different modules, and are
able to use both of them.

llvm-svn: 138189

llvm-svn: 138188

modules (those that no other module depends on) and performs a search
over all of the modules, visiting a new module only when all of the
modules that depend on it have already been visited. The visitor can
abort the search for all modules that a module depends on, which
allows us to minimize the number of lookups necessary when performing
a search.

Switch identifier lookup from a linear walk over the set of modules to
this module visitation operation. The behavior is the same for simple
PCH and chained PCH, but provides the proper search order for
modules. Verified with printf debugging, since we don't have enough in
place to actually test this.

llvm-svn: 138187

Static Analyzer Diagnostics: Move the responsibility for generating the endOfPath diagnostic piece from BugReport to BugReporterVisitor. Switch CFRefCount to use visitors in order to generate the endOfPath piece.

llvm-svn: 138184