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path: root/include/clang/Analysis/PathSensitive/GRTransferFuncs.h
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2008-04-25Do a better job at computing dead symbols.Ted Kremenek
Implemented support for better localized leaks in the CF reference count checker. Now leaks should be flagged close to where they occur. This should implement the desired functionality in <rdar://problem/5879592>, although the diagnostics still need to be improved. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50241 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-24More boilerplate for handling specialized-transfer function logic for dead ↵Ted Kremenek
symbols. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50233 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-23Fixed: <rdar://problem/5881148>Ted Kremenek
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50176 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18Added "GetErrorNodes()" to BugType so that -trim-egraph can recognize errorsTed Kremenek
from registered BugTypes. This helps with debugging. Add detection of NULL values in ref count checker; this suppresses false positives. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49912 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-18Added "EvalAssume" virtual method to GRTransferFuncs; this is for evaluatingTed Kremenek
the checker-specific logic of symbolic assumptions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49910 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16Handle ReturnStmts by dispatching to "EvalReturn" in the transfer function ↵Ted Kremenek
object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49826 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16Small tweaks to EvalStore: pass an "RVal" instead of "LVal" for the TargetLV toTed Kremenek
represent possible stores to "Unknown." git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49811 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-16Hook up "EvalStore" from GRTransferFuncs to GRExprEngine.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49804 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-15Added some comments to GRExprEngine. Reorder some of the method definitionsTed Kremenek
to start logically organizing them. Added initial plug-in transfer function support for Objective-C message expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49752 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-11Added "EvalEndPath" to GRTransferFuncs: the default implementation does notTed Kremenek
change the state (and thus the GREndPathNodeBuilder automatically contructs a node). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49563 91177308-0d34-0410-b5e6-96231b3b80d8
2008-04-09Major refactoring/cleanup of GRExprEngine, ExplodedGraph, and BugReporter.Ted Kremenek
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@49453 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-12Prototype (pre-alpha) implementation of CFRef checker.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48272 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Expanded graph-visualization to include optional pretty-printing of ↵Ted Kremenek
checker-specific state. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48238 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-11Expanded ValueState pretty-printing to use an optional "CheckerStatePrinter"Ted Kremenek
object to pretty-print the component of a state that is specific to a checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48237 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-07Renamed ValueManager to BasicValueFactory.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@48025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-06fix typosGabor Greif
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47995 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-05Plug-in transfer function "EvalCall" now takes as an argument the currentTed Kremenek
GRStmtNodeBuilder and is now responsible for adding its own nodes to the graph. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47923 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-04Make GRStmtNodeBuilder only depend on StateTy, and not the type definitionTed Kremenek
of the entire checker. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47920 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-28Merged ValueState and ValueStateImpl into just ValueState, with ↵Ted Kremenek
GRExprEngine::StateTy just becoming ValueState*. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47714 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-26Added boilerplate for plug-in transfer function support for CallExprs.Ted Kremenek
GRSimpleVals performs the following action: invalidate all values passed-by-reference. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47638 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Simplified and generalized transfer function logic for casts, allowingTed Kremenek
the transfer function to be invoked without an Expr* for the Cast operation. Added implicit promotions to the transfer function logic for compound assignments. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47444 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-21Major cleanup of path-sensitive analysis engine and the current analysisTed Kremenek
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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47441 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-20Implemented transfer function logic for unary '+'Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47357 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Refactored code for transfer functions for binary operators involving two ↵Ted Kremenek
LValues. 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. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47190 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Simplified transfer function logic for ++/-- operators.Ted Kremenek
Added more boilerplate transfer function support for pointer arithmetic. Added more pretty-printing support for symbolic constraints. Added transfer function support for handling enum values. Minor pointer types cleanup in ExplodedGraphImpl. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47183 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-15Added boilerplate transfer function support for pointer arithmetic operations.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47147 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Migrated transfer functions for binary operators for simple value trackingTed Kremenek
from RValues to GRTransferFuncs/GRSimpleVals. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47131 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Migrated transfer functions for unary "~" and "-" to ↵Ted Kremenek
GRTransferFuncs/GRSimpleVals. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47126 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-14Started partitioning of transfer function logic (and thus the policy behind Ted Kremenek
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" git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@47125 91177308-0d34-0410-b5e6-96231b3b80d8
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