CompoundVal now uses an ImmutableList<SVal> to store its set of SVals.  This change was motivated by the need to allow state-splitting in GRExprEngine::VisitInitListExpr.  As a side-benefit, we no longer need to perform any copies of SVals when creating a CompoundSVal, and the profiling of CompoundSVal is now constant time.

llvm-svn: 58437

Fix PR 2978 false positive for missing release in -dealloc of an ivar retained via a property and then released by assigning nil to that property:

  http://llvm.org/bugs/show_bug.cgi?id=2978

llvm-svn: 58431

llvm-svn: 58429

llvm-svn: 58422

 - SetSVal(GRState*, Loc, SVal) => BindLoc
 - SetSVal(GRState*, Expr*, SVal) => BindExpr 

llvm-svn: 58421

llvm-svn: 58419

llvm-svn: 58418

llvm-svn: 58417

llvm-svn: 58410

llvm-svn: 58404

 - That is, the metadata for a protocol is only emitted if that
   protocol is actually used in the translation unit. This is
   important because Objective-C headers frequently contain a large
   number of protocol definitions, only a few of which will be used in
   any given file.

llvm-svn: 58400

Fix crash reported in PR2923 where a function declared using typeof(another_function) would have FunctionDecl::getNumParams() return the number of parameters in the original function type and not the number of parameters in the actual FunctionDecl.

llvm-svn: 58392

  - Allows definitions of overloaded functions :)
  - Eliminates extraneous error messages when we have a definition of a 
    function that isn't an overload but doesn't have exactly the same type
    as the original.
  

llvm-svn: 58382

llvm-svn: 58381

Temporary disable the const-object-declaration-without-initializer check, because it depends on linkage-specifier semantics we don't yet have

llvm-svn: 58377

llvm-svn: 58373

va_list, not the value.  Patch fixes an assert on 
x86-64 and a wrong-code bug on x86.  I'm not completely sure, 
but I think it's a regression from r58306.

Does anyone run regression tests regularly on x86-64? The crash should 
have been picked up there.

llvm-svn: 58366

The attached patch adds additional checks to -warn-objc-missing-dealloc. It checks that all ivars which are used in implementation of synthesized properties are either

a) released in dealloc if the property has retain" or "copy" attribute OR
b) not released in dealloc if the property has "assign" attribute

llvm-svn: 58363

llvm-svn: 58362

arguments.
 - More important than it looks, this inhibits trivial inlining
   otherwise.

llvm-svn: 58360

BindDecl better describes what the function does:
  - Bind the VarDecl to its memory region
  - Bind the memory region to some initial value.

llvm-svn: 58359

ImplicitConversionSequence and, when doing so, following the specific
rules of [over.best.ics]. 

The computation of the implicit conversion sequences implements C++
[over.ics.ref], but we do not (yet) have ranking for implicit
conversion sequences that use reference binding.

llvm-svn: 58357

of copy initialization. Other pieces of the puzzle:

  - Try/Perform-ImplicitConversion now handles implicit conversions
    that don't involve references.
  - Try/Perform-CopyInitialization uses
    CheckSingleAssignmentConstraints for C. PerformCopyInitialization
    is now used for all argument passing and returning values from a
    function.
  - Diagnose errors with declaring references and const values without
    an initializer. (Uses a new Action callback, ActOnUninitializedDecl).
  
We do not yet have implicit conversion sequences for reference
binding, which means that we don't have any overloading support for
reference parameters yet.

llvm-svn: 58353

llvm-svn: 58331

llvm-svn: 58330

llvm-svn: 58322

llvm-svn: 58321

in the driver (this means we no longer run the verifier per function, however).

llvm-svn: 58307

  - Do not allow expressions to ever have reference type
  - Extend Expr::isLvalue to handle more cases where having written a
    reference into the source implies that the expression is an lvalue
    (e.g., function calls, C++ casts).
  - Make GRExprEngine::VisitCall treat the call arguments as lvalues when
    they are being bound to a reference parameter.

llvm-svn: 58306

Initialize Suffix and Prefix to 0, even with a bad entry.  Removes an uninitialized value warning from gcc.

llvm-svn: 58305

llvm-svn: 58304

being emitted unless needed and doesn't inhibit inlining.
  - Can be fixed once we implement C99 inline semantics.

llvm-svn: 58303

- Add symbol_iterator support for SymbolicRegions.

llvm-svn: 58300

llvm-svn: 58292

llvm-svn: 58281

- GRExprEngine::VisitCompoundLiteral...
   (1) visits the initializer list (generating ExplodedNodes)
   (2) creates a CompoundMemRegion for the literal
   (3) creates a new state with the bound literal values using
       GRStateManager::BindCompoundLiteral

- GRStateManager::BindCompoundLiteral simply calls 
  StoreManager::BindCompoundLiteral to get a new store and returns a persistent
  GRState with that store.

- BasicStore::BindCompoundLiteral simply returns the same store, as it
  doesn't handle field sensitivity
  
- RegionStore::BindCompoundLiteral currently fires an assert (pending discussion
  of how to best implement mappings for CompoundLiteralRegion).

llvm-svn: 58277

Pull determination of the super region for a VarRegion into a single getVarRegion() method.  This provides a common clean API for clients.

llvm-svn: 58272

llvm-svn: 58270

  - CastExpr is the root of all casts
  - ImplicitCastExpr is (still) used for all explicit casts
  - ExplicitCastExpr is now the root of all *explicit* casts
  - ExplicitCCastExpr (new name needed!?) is a C-style cast in C or C++
  - CXXFunctionalCastExpr inherits from ExplicitCastExpr
  - CXXNamedCastExpr inherits from ExplicitCastExpr and is the root of all
    of the C++ named cast expression types (static_cast, dynamic_cast, etc.)
  - Added classes CXXStaticCastExpr, CXXDynamicCastExpr, 
    CXXReinterpretCastExpr, and CXXConstCastExpr to 

Also, fixed returned-stack-addr.cpp, which broke once when we fixed
reinterpret_cast to diagnose double->int* conversions and again when
we eliminated implicit conversions to reference types. The fix is in
both testcase and SemaChecking.cpp.

Most of this patch is simply support for the renaming. There's very
little actual change in semantics.

llvm-svn: 58264

- Implement child_begin() and child_end() for AsmStmt.  Previously these had stub implementations that did not iterate over the input/output operands of an inline assembly statement.
- Use ExprIterator for performing iteration over input/output operands.

llvm-svn: 58261