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path: root/lib/StaticAnalyzer/Checkers/OSAtomicChecker.cpp
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2012-04-06Rework ExprEngine::evalLoad and clients (e.g. VisitBinaryOperator) so that ↵Ted Kremenek
when we generate a new ExplodedNode we use the same Expr* as the one being currently visited. This is preparation for transitioning to having ProgramPoints refer to CFGStmts. This required a bit of trickery. We wish to keep the old Expr* bindings in the Environment intact, as plenty of logic relies on it and there is no reason to change it, but we sometimes want the Stmt* for the ProgramPoint to be different than the Expr* being used for bindings. This requires adding an extra argument for some functions (e.g., evalLocation). This looks a bit strange for some clients, but it will look a lot cleaner when were start using CFGStmt* in the appropriate places. As some fallout, the diagnostics arrows are a bit difference, since some of the node locations have changed. I have audited these, and they look reasonable. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@154214 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-26Change references to 'const ProgramState *' to typedef 'ProgramStateRef'.Ted Kremenek
At this point this is largely cosmetic, but it opens the door to replace ProgramStateRef with a smart pointer that more eagerly acts in the role of reclaiming unused ProgramState objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@149081 91177308-0d34-0410-b5e6-96231b3b80d8
2012-01-06[analyzer] Make the entries in 'Environment' context-sensitive by making ↵Ted Kremenek
entries map from (Stmt*,LocationContext*) pairs to SVals instead of Stmt* to SVals. This is needed to support basic IPA via inlining. Without this, we cannot tell if a Stmt* binding is part of the current analysis scope (StackFrameContext) or part of a parent context. This change introduces an uglification of the use of getSVal(), and thus takes two steps forward and one step back. There are also potential performance implications of enlarging the Environment. Both can be addressed going forward by refactoring the APIs and optimizing the internal representation of Environment. This patch mainly introduces the functionality upon when we want to build upon (and clean up). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@147688 91177308-0d34-0410-b5e6-96231b3b80d8
2011-12-01[analyzer] Refactor checkers to use helper function for getting callee Decl ↵Anna Zaks
and name. We are getting name of the called function or it's declaration in a few checkers. Refactor them to use the helper function in the CheckerContext. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@145576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Node builders cleanup + commentsAnna Zaks
Renamed PureNodeBuilder->StmtNodeBuilder. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-24[analyzer] Remove more dependencies from global BuilderAnna Zaks
- OSAtomicChecker - ExprEngine::processStmt git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@142846 91177308-0d34-0410-b5e6-96231b3b80d8
2011-10-05[analyzer] OSAtomicChecker implements evalCall in a very invasive way - it ↵Anna Zaks
essentially simulates inlining of compareAndSwap() by means of setting the NodeBuilder flags and calling ExprEngine directly. This commit introduces a new callback just for this checker to unblock checker API cleanup. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141246 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-15Rename GRState to ProgramState, and cleanup some code formatting along the way.Ted Kremenek
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137665 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12Cleanup various declarations of 'Stmt*' to be 'Stmt *', etc. in libAnalyzer ↵Ted Kremenek
and libStaticAnalyzer[*]. It was highly inconsistent, and very ugly to look at. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12[analyzer] change "tag" in ProgramPoint from "void*" to a ProgramPointTag*.Ted Kremenek
Having a notion of an actual ProgramPointTag will aid in introspection of the analyzer's behavior. For example, the GraphViz output of the analyzer will pretty-print the tags in a useful manner. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137529 91177308-0d34-0410-b5e6-96231b3b80d8
2011-08-12[analyzer] Introduce new MemRegion, "TypedValueRegion", so that we can ↵Ted Kremenek
separate TypedRegions that implement getValueType() from those that don't. Patch by Olaf Krzikalla! git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@137498 91177308-0d34-0410-b5e6-96231b3b80d8
2011-07-23remove unneeded llvm:: namespace qualifiers on some core types now that ↵Chris Lattner
LLVM.h imports them into the clang namespace. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@135852 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-27Allow 'Environment::getSVal()' to allow an optional way for checkers to do a ↵Ted Kremenek
direct lookup to values bound to expressions, without resulting to lazy logic. This is critical for the OSAtomicChecker that does a simulated load on any arbitrary expression. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@130292 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01[analyzer] Rename CheckerV2 -> Checker.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126726 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate OSAtomicChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126610 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-10Split 'include/clang/StaticAnalyzer' into ↵Ted Kremenek
'include/clang/StaticAnalyzer/Core' and 'include/clang/StaticAnalyzer/Checkers'. This layout matches lib/StaticAnalyzer, which corresponds to two StaticAnalyzer libraries. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125251 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-08[analyzer] lib/StaticAnalyzer/Checkers/ExprEngineInternalChecks.h -> ↵Argyrios Kyrtzidis
lib/StaticAnalyzer/Checkers/InternalChecks.h git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125121 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-23Chris Lattner has strong opinions about directoryTed Kremenek
layout. :) Rename the 'EntoSA' directories to 'StaticAnalyzer'. Internally we will still use the 'ento' namespace for the analyzer engine (unless there are further sabre rattlings...). git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@122514 91177308-0d34-0410-b5e6-96231b3b80d8
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