Implement load from struct region. Instead of returning an UnknownVal(), we create a CompoundVal by loading from each field of the struct.

llvm-svn: 58494

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

- 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

llvm-svn: 58247

llvm-svn: 58243

llvm-svn: 58236

llvm-svn: 58182

Simplify ArrayToPointer conversion. Actually the only thing we need to do is to get the first element region. It is not necessary to care about the kind of the base array region.

llvm-svn: 58181

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

llvm-svn: 58138

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

The Decl of an array region can be VarDecl or FieldDecl. Handle this in RegionStoreManager::ArrayToPointer().

llvm-svn: 58086

the array initialization code into a function.

llvm-svn: 58083

llvm-svn: 58074

llvm-svn: 58070

llvm-svn: 58061

llvm-svn: 58058

llvm-svn: 58056

llvm-svn: 57977

llvm-svn: 57909

llvm-svn: 57896

initialized to UndefinedVal.

llvm-svn: 57892

- Added new region "SymbolicRegion", which maps symbol values to the region domain.
- Enhanced BasicStore::getFieldLValue() to return a FieldRegion (using SymbolicRegion)
- Added some utility methods to GRState for fetch svals from the store.
- Fixed regression in CheckNSError (we weren't getting the value bound to the parameter)

llvm-svn: 57717

RVal => SVal
LVal => Loc
NonLVal => NonLoc
lval => loc
nonlval => nonloc

llvm-svn: 57671

This is the first step to implement a field-sensitive store model. Other things are simplified: no heap shape assumption, no parameter alias assumption, etc.

llvm-svn: 57285