- Refactor the MemRegion hierarchy to distinguish between different StackSpaceRegions for locals and parameters.
- VarRegions for "captured" variables now have the BlockDataRegion as their super region (except those passed by reference)
- Add transfer function support to GRExprEngine for BlockDeclRefExprs.

This change also supports analyzing blocks as an analysis entry point
(top-of-the-stack), which required pushing more context-sensitivity
around in the MemRegion hierarchy via the use of LocationContext
objects.  Functionally almost everything is the same, except we track
LocationContexts in a few more areas and StackSpaceRegions now refer
to a StackFrameContext object.  In the future we will need to modify
MemRegionManager to allow multiple StackSpaceRegions in flight at once
(for the analysis of multiple stack frames).

llvm-svn: 90809

llvm-svn: 90808

llvm-svn: 90807

llvm-svn: 90805

llvm-svn: 90804

llvm-svn: 90800

llvm-svn: 90799

llvm-svn: 90796

(fixes radar 7447251).

llvm-svn: 90795

llvm-svn: 90794

llvm-svn: 90793

llvm-svn: 90792

llvm-svn: 90791

Use FileCheck and set nounwind on calls.

llvm-svn: 90790

number in order to accomodate targets with more than 1024 registers.

llvm-svn: 90789

The semantics of llvm.dbg.value are that starting from where it is executed, an offset into the specified user source variable is specified to get a new value.

An example:
  call void @llvm.dbg.value(metadata !{ i32 7 }, i64 0, metadata !2)
Here the user source variable associated with metadata #2 gets the value "i32 7" at offset 0.
 

llvm-svn: 90788

llvm-svn: 90786

llvm-svn: 90785

llvm-svn: 90784

llvm-svn: 90782

current form, it is too expensive in compile time.

llvm-svn: 90781

llvm-svn: 90780

anything.

llvm-svn: 90779

llvm-svn: 90778

claim it in Driver.cpp instead of Tools.cpp.

llvm-svn: 90777

llvm-svn: 90776

llvm-svn: 90775

Use 'forward_values' + 'comma_separated' instead.

llvm-svn: 90774

(fixes radar 7442244).

llvm-svn: 90773

llvm-svn: 90772

llvm-svn: 90771

llvm-svn: 90770

llvm-svn: 90769

llvm-svn: 90764

llvm-svn: 90759

llvm-svn: 90758

llvm-svn: 90757

llvm-svn: 90756

handler to this interface.
GRExprEngine::CheckerEvalCall() will return true if one of the checkers has
processed the node. In the future this might return void when we have some 
default checker.

llvm-svn: 90755

llvm-svn: 90754