llvm-svn: 76380

llvm-svn: 76294

Fix crash in StoreManager::NewCastRegion() when handling casts from 'id' (or whatever) to a BlockPointerType.

llvm-svn: 76288

llvm-svn: 76287

Fix some fallout from CFGBuilder restructuring: all expressions that we explicitly handle have the possibility to be block-level expressions.

llvm-svn: 76277

llvm-svn: 76262

llvm-svn: 76261

is an algorithm that is much easier to understand and slightly more efficient.
Thanks to Mike Stump for our discussions on the CFGBuilder and his comments that
helped prompt this long needed cleanup.

llvm-svn: 76250

llvm-svn: 76205

llvm-svn: 76202

llvm-svn: 76196

until Doug Gregor's Type smart pointer code lands (or more discussion occurs).
These methods just call the new Type::getAs<XXX> methods, so we still have
reduced implementation redundancy. Having explicit getAsXXXType() methods makes
it easier to set breakpoints in the debugger.

llvm-svn: 76193

llvm-svn: 76180

more obvious.

llvm-svn: 76167

a public static method of ASTLocation.

llvm-svn: 76166

code with the new method.

llvm-svn: 76164

llvm-svn: 76161

 - add IfStmt visitor.
 - print information only when a function has callee. Otherwise its ASTContext
   map is NULL.

llvm-svn: 76156

conventions.  Also reflowed comments and removed spaces at end of
lines and fixed up 80 col violations.

llvm-svn: 76140

Replaced Type::getAsLValueReferenceType(), Type::getAsRValueReferenceType(), Type::getAsMemberPointerType(), Type::getAsTagType(), and Type::getAsRecordType() with their Type::getAs<XXX> equivalents.

llvm-svn: 76139

llvm-svn: 76133

This method is intended to eventually replace the individual
Type::getAsXXXType<> methods.

The motivation behind this change is twofold:

1) Reduce redundant implementations of Type::getAsXXXType() methods. Most of
them are basically copy-and-paste.

2) By centralizing the implementation of the getAs<Type> logic we can more
smoothly move over to Doug Gregor's proposed canonical type smart pointer
scheme.

Along with this patch:

a) Removed 'Type::getAsPointerType()'; now clients use getAs<PointerType>.
b) Removed 'Type::getAsBlockPointerTypE()'; now clients use getAs<BlockPointerType>.

llvm-svn: 76098

llvm-svn: 76092

Convert all clients to use the new predicate on Type.

llvm-svn: 76076

llvm-svn: 75885

ValueManager::makeArrayIndex()/convertArrayIndex() methods.  This
handles yet another crash case when reasoning about array indices of
different bitwidth and signedness.

llvm-svn: 75884

(1) Moved the SValuator object from GRExprEngine to ValueManager.  This
   allows ValueManager to use the SValuator when creating SVals.

(2) Added ValueManager::makeArrayIndex() and
    ValueManager::convertToArrayIndex(), two SVal creation methods
    that will help RegionStoreManager always have a consistent set of
    SVals with the same integer size and type when reasoning about
    array indices.

llvm-svn: 75882

llvm-svn: 75873

llvm-svn: 75865

Fix <rdar://problem/7062158> by having BasicStoreManager model values for 'static' global variables.

llvm-svn: 75844

llvm-svn: 75832

llvm-svn: 75761

llvm-svn: 75750

llvm-svn: 75748

llvm-svn: 75745

llvm-svn: 75738

More test cases revealed that the logic in StoreManager::InvalidateRegion() needs more finesse when handling the invalidation of pointers.  Pointers that were invalidated as integers could later cause problems for clients using them as pointers.  It is easier for us to model a symbolic value as a pointer rather than modeling a non-symbolic value as a pointer.

This patch causes:
- StoreManager::InvalidateRegion() to not used the casted type of a region if
  it would cause a pointer type to be invalidated as a non-pointer type.
- Pushes RegionStore::RetrieveElement() further by handling retrievals from
  symbolic arrays that have been invalidated.  This uses the new SymbolDerived
  construct that was recently introduced.
  
The result is that the failing test in misc-ps-region-store-x86_64.m now passes.
Both misc-ps-region-store-x86_64.m and misc-ps-region-store-i386.m contain a
test case that motivated this change.

llvm-svn: 75730

SymbolDerived allows us to model symbolic values that are related to other
symbols via a region hierarchy. For example, SymbolDerived can be used to model
individual values of a symbolic array.

llvm-svn: 75728

llvm-svn: 75713

Enhance RegionStoreManager to handle 'Retrieve's from SymbolicRegions.  We do this by silently wrapping the region with an ElementRegion.  This fixes the failures in misc-ps-region-store.m.

llvm-svn: 75679