aboutsummaryrefslogtreecommitdiff
path: root/include/clang/Analysis/PathSensitive/ConstraintManager.h
AgeCommit message (Collapse)Author
2010-01-25Split libAnalysis into two libraries: libAnalysis and libChecker.Ted Kremenek
(1) libAnalysis is a generic analysis library that can be used by Sema. It defines the CFG, basic dataflow analysis primitives, and inexpensive flow-sensitive analyses (e.g. LiveVariables). (2) libChecker contains the guts of the static analyzer, incuding the path-sensitive analysis engine and domain-specific checks. Now any clients that want to use the frontend to build their own tools don't need to link in the entire static analyzer. This change exposes various obvious cleanups that can be made to the layout of files and headers in libChecker. More changes pending. :) This change also exposed a layering violation between AnalysisContext and MemRegion. BlockInvocationContext shouldn't explicitly know about BlockDataRegions. For now I've removed the BlockDataRegion* from BlockInvocationContext (removing context-sensitivity; although this wasn't used yet). We need to have a better way to extend BlockInvocationContext (and any LocationContext) to add context-sensitivty. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@94406 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05Remove references to 'Checker' and 'GRTransferFuncs' fromTed Kremenek
GRStateManager. Having these references was an abstraction violation, as they really should only be known about GRExprEngine. This change required adding a new 'ProcessAssume' callback in GRSubEngine. GRExprEngine implements this callback by calling 'EvalAssume' on all registered Checker objects as well as the registered GRTransferFunc object. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@92549 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11Introduce "DefinedOrUnknownSVal" into the SVal class hierarchy, providing a wayTed Kremenek
to statically type various methods in SValuator/GRState as required either a defined value or a defined-but-possibly-unknown value. This leads to various logic cleanups in GRExprEngine, and lets the compiler enforce via type checking our assumptions about what symbolic values are possibly undefined and what are not. Along the way, clean up some of the static analyzer diagnostics regarding the uses of uninitialized values. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81579 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-09Remove tabs, and whitespace cleanups.Mike Stump
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@81346 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24ConstraintManager::AssumeDual now accepts a 'DefinedSVal' instead of 'SVal' forTed Kremenek
the condition. This eliminates a source of bugs where the client doesn't correctly reason about undefined or unknown values. This fixes PR 4759. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@79952 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-22Add AssumeDual method.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@76798 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-24Remove uses of std::ostream from libAnalysis.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@74136 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-18libAnalysis:Ted Kremenek
- Remove the 'isFeasible' flag from all uses of 'Assume'. - Remove the 'Assume' methods from GRStateManager. Now the only way to create a new GRState with an assumption is to use the new 'assume' methods in GRState. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@73731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-26analyzer infrastructure: make a bunch of changes to symbolic expressions thatTed Kremenek
Zhongxing and I discussed by email. Main changes: - Removed SymIntConstraintVal and SymIntConstraint - Added SymExpr as a parent class to SymbolData, SymSymExpr, SymIntExpr - Added nonloc::SymExprVal to wrap SymExpr - SymbolRef is now just a typedef of 'const SymbolData*' - Bunch of minor code cleanups in how some methods were invoked (no functionality change) This changes are part of a long-term plan to have full symbolic expression trees. This will be useful for lazily evaluating complicated expressions. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@67731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-11Added method "canReasonAbout" to ConstraintManager. This method returns true ifTed Kremenek
a ConstraintManager can usefully reason about the given SVal. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@66624 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-14Patch by Ben Laurie:Ted Kremenek
ConstraintManager: - constify getSymVal() BasicConstraintManager: - Pull out logic that would be common to ConstraintManagers of a similar nature and put them in a parent class called 'SimpleConstraintManager'. RangeConstraintManager: - Added a new prototype ConstraintManager to track ranges of variables! This ConstraintManager keeps tracks of ranges of concrete integers that a symbolic integer may have. AnalysisConsumer: - Add driver option to use RangeConstraintManager with GRExprEngine-based analyses. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64558 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-28Remove method 'AddNE' from the public interface of ConstraintManager.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63249 91177308-0d34-0410-b5e6-96231b3b80d8
2009-01-21Static Analyzer: Replace LiveSymbols/DeadSymbols sets with a new object ↵Ted Kremenek
called "SymbolReaper". Right now it just consolidates the two and cleans up some client code, but shortly it will be used to enable "lazy computation" of live symbols for use with RegionStore. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@62722 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-05Rename SymbolID to SymbolRef. This is a precursor to some overhauling of ↵Ted Kremenek
the representation of symbolic values. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60575 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-28Enable the GRStateManager to do something when we finish a path. For example, Zhongxing Xu
the ConstraintManager can print its internal state before its solver instance is destroyed. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@60204 91177308-0d34-0410-b5e6-96231b3b80d8
2008-11-22Initial support for checking out of bound memory access. Only support Zhongxing Xu
ConcreteInt index for now. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@59869 91177308-0d34-0410-b5e6-96231b3b80d8
2008-10-17This patch did the following renaming. There should be no functional changes.Zhongxing Xu
RVal => SVal LVal => Loc NonLVal => NonLoc lval => loc nonlval => nonloc git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@57671 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-29Added LLVM comment header.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55537 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-29Migrate the rest symbolic analysis stuff to BasicConstraintManager.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55536 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27Make the destructor of ConstraintManager virtual.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55448 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-27Refactor Assume logic into a separate class ConstraintManager.Zhongxing Xu
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@55412 91177308-0d34-0410-b5e6-96231b3b80d8
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-04-30 16:34:36 +0000