Implement FIXME in GRExprEngine::VisitUnaryOperator() to handle implicit conversions caused by the '!' operator.  This required adding some logic to GRSimpleVals to reason about nonloc::LocAsInteger SVals.  This code appears to work fine, but it should eventually be cleaned up.

llvm-svn: 59335

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

llvm-svn: 57671

Rename ValueStateManager -> GRStateManager.

llvm-svn: 54721

Moved registration of basic path-sensitive checks from GRSimpleVals.cpp to GRExprEngineInternalChecks.cpp.

llvm-svn: 53909

Renamed deterministic EvalBinOp to DetermEvalBinOpNN.  This name mangling is unfortunately needed because virtual methods with the same name can be hidden by subclasses.

llvm-svn: 53751

Modified the new EvalBinOpNN to generate states instead of nodes.  This is a much simpler interface and is what clients will want to do.

llvm-svn: 53750

Problem:

In the recently refactored VisitDeref (which processes dereferences), we
were incorrectly skipping the node just generated for the subexpression
of the dereference.  This was a horrible regression.

llvm-svn: 50176

to start logically organizing them.

Added initial plug-in transfer function support for Objective-C message expressions.

llvm-svn: 49752

Bugs are now reported using a combination of "BugType" (previously
BugDescription) and Bug "BugReport" objects, which are fed to BugReporter (which
generates PathDiagnostics). This provides a far more modular way of registering
bug types and plugging in diagnostics.

GRExprEngine now owns its copy of GRCoreEngine, and is not owned by the
ExplodedGraph.

ExplodedGraph is no longer templated on the "checker", but instead on the state
contained in the nodes.

llvm-svn: 49453

the new BugReporter interface.

llvm-svn: 49180

lib dir and move all the libraries into it.  This follows the main
llvm tree, and allows the libraries to be built in parallel.  The
top level now enforces that all the libs are built before Driver,
but we don't care what order the libs are built in.  This speeds
up parallel builds, particularly incremental ones.

llvm-svn: 48402

llvm-svn: 48272

llvm-svn: 48025

llvm-svn: 47995

GRStmtNodeBuilder and is now responsible for adding its own nodes to the graph.

llvm-svn: 47923

Merged ValueState and ValueStateImpl into just ValueState, with GRExprEngine::StateTy just becoming ValueState*.

llvm-svn: 47714

GRSimpleVals performs the following action: invalidate all values passed-by-reference.

llvm-svn: 47638

the transfer function to be invoked without an Expr* for the Cast operation.

Added implicit promotions to the transfer function logic for compound
assignments.

llvm-svn: 47444

based on constant. prop. and limited symbolics.

- Renamed class: RValue -> RVal, LValue -> LVal, etc.
- Minor method renamings and interface cleanups.
- Tightened the RVal "type system" so that UninitializedVal and UnknownVal
  cannot be cast to LVal or NonLVal.  This forces these corner cases values
  to be explicitly handled early before being dispatched to plug-in transfer
  function logic.
- Major cleanup in the transfer function logic for binary and unary operators.
  Still fixing some regressions, but we now explicitly handle Uninitialized
  and Unknown values in a more rigorous way.

llvm-svn: 47441

llvm-svn: 47357

Fixed bug in transfer functions for sizeof(*); we were incorrectly evaluating to
a value of the wrong type.

Fixed bug in transfer functions for compound assignments where we did not properly
handle assignments involving dereferences of symbolic values.

llvm-svn: 47190

llvm-svn: 47147

Moved driver logic for --grsimple to GRSimpleVals.cpp.

llvm-svn: 47137

from RValues to GRTransferFuncs/GRSimpleVals.

llvm-svn: 47131

llvm-svn: 47126

these operations) into GRTransferFuncs and its subclasses.  Originally all
of this logic was handled by the class RValue, but in reality different
analyses will want more flexibility on how they evaluate different values.

Transfer functions migrated so far: "Cast"

llvm-svn: 47125