This is required by some operations, e.g., *p = 1; p[0] = 1;.
Also set the AllocaRegion's type during the cast.

llvm-svn: 59232

GRExprEngine/CFRefCount/GRSimpleVals: We don't do any special handling (yet) of vector types.  Add explicit checks that when we process integers that they really are scalars.

llvm-svn: 59225

- Don't crash on vector types.
- Handle typedefs.

llvm-svn: 59220

llvm-svn: 59162

Add (preliminary) transfer function support for ObjCForCollectionStmt.  Still need to flesh out some logic.

When processing DeclStmt, use the new interface to StateManager::BindDecl.  Conjuring of symbols is now done in VisitDeclStmt.

llvm-svn: 59155

Introduce a single AST node SizeOfAlignOfExpr for all sizeof and alignof expressions, both of values and types.

llvm-svn: 59057

llvm-svn: 58956

llvm-svn: 58886

available, things get much simplified.

One addition is that CompoundLiteralExpr can appear both in rvalue and lvalue
context.

llvm-svn: 58837

llvm-svn: 58552

Comment out invalid assertion.  I'm leaving it in the code for now as a reminder to produce a test case.

llvm-svn: 58510

llvm-svn: 58495

llvm-svn: 58492

llvm-svn: 58487

llvm-svn: 58468

llvm-svn: 58446

llvm-svn: 58444

llvm-svn: 58440

llvm-svn: 58422

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

llvm-svn: 58421

llvm-svn: 58419

llvm-svn: 58410

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

llvm-svn: 58331

  - 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

llvm-svn: 58292

- 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

  - 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

This fixes PR 2948.

llvm-svn: 58148

for StringLiteral lvalue evaluation, instead of directly returning a
loc::StringLiteralVal by the Environment.

llvm-svn: 58138

llvm-svn: 58135

Implicit conversions from arrays can also be conversions to references (will add a test case shortly).

llvm-svn: 58110

Added method "getSelfRegion" to Store.  This method returns the region associated with the "this" or "self" object (C++ and Objective-C respectively).

llvm-svn: 58107

llvm-svn: 58070

llvm-svn: 58056

llvm-svn: 58030

llvm-svn: 58028

llvm-svn: 57964

llvm-svn: 57963

When conjuring symbols for compound assignments, use the promoted type to determine if the symbolic value as a "loc::" or "nonloc::" value.

llvm-svn: 57917