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path: root/lib/StaticAnalyzer/Checkers/ExprEngine.cpp
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2011-03-01[analyzer] Move lib/StaticAnalyzer/Checkers/ExprEngine.cpp -> ↵Argyrios Kyrtzidis
lib/StaticAnalyzer/Core and hope the wrath of the buildbots will not descend upon me. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126728 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01[analyzer] Remove Checker V1.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126725 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01[analyzer] Remove checker V1 registration and running from ExprEngine.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126724 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Remove unused checker stuff from AnalysisConsumer and some unused ↵Argyrios Kyrtzidis
headers. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126690 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate NSErrorChecker and DereferenceChecker to CheckerV2.Argyrios Kyrtzidis
They cooperate in that NSErrorChecker listens for ImplicitNullDerefEvent events that DereferenceChecker can dispatch. ImplicitNullDerefEvent is when we dereferenced a location that may be null. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126659 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analzyer] Migrate CallAndMessageChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126626 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] ExprEngine should not depend on checkers for not crashing.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126625 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate AdjustedReturnValueChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126624 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate AttrNonNullChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126623 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] ExprEngine should not depend on checkers for not crashing.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126622 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate VLASizeChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126621 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate DivZeroChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126620 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate ReturnUndefChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126619 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate UndefinedArraySubscriptChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126618 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate UndefinedAssignmentChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126617 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate UndefBranchChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126616 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate UndefCapturedBlockVarChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126615 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate UndefResultChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126614 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate NoReturnFunctionChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126613 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28[analyzer] Migrate BuiltinFunctionChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126611 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
2011-02-28[analyzer] Migrate MallocChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126606 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24[analyzer] Don't pass a GRState to CheckerManager::runCheckersForLocation, ↵Argyrios Kyrtzidis
terrible mistake. If the state is new, make sure an ExplodedNode is associated with it. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126370 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24[analyzer] Remove unused functions from CheckerManager.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126352 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24[analyzer] Migrate CStringChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126350 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23[analyzer] Migrate StackAddrLeakChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126333 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23[analyzer] Refactor EndOfFunctionNodeBuilder.Argyrios Kyrtzidis
-Introduce EndOfFunctionNodeBuilder::withCheckerTag to allow it be "specialized" with a checker tag and not require the checkers to pass a tag. -For EndOfFunctionNodeBuilder::generateNode, reverse the order of tag/P parameters since there are actual calls that assume the second parameter is ExplodedNode. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126332 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23[analyzer] Migrate ChrootChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126324 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23[analyzer] Migrate UnreachableCodeChecker to CheckerV2.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126308 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23[analyzer] Refactor BugTypes and their ownership model.Argyrios Kyrtzidis
-In general, don't have the BugReporter deleting BugTypes, BugTypes will eventually become owned by checkers and outlive the BugReporter. In the meantime, there will be some leaks since some checkers assume that the BugTypes they create will be destroyed by the BugReporter. -Have BugReporter::EmitBasicReport create BugTypes that are reused if the same name & category strings are passed to EmitBasicReport. These BugTypes are owned and destroyed by the BugReporter. This allows bugs reported through EmitBasicReport to be coalesced. -Remove the llvm::FoldingSet<BugReportEquivClass> from BugType and move it into the BugReporter. For uniquing BugReportEquivClass also use the BugType* so that we can iterate over all of them using only one set. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126272 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22[analyzer] Start moving the path-sensitive checkers to CheckerV2.Argyrios Kyrtzidis
-Migrate ObjCSelfInitChecker to CheckerV2. In the process remove the 'preCallSelfFlags' field from the checker class and use GRState for storing that info. -Get ExprEngine to start delegating checker running to CheckerManager. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126229 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Change the representation of GNU ?: expressions to use a different expressionJohn McCall
class and to bind the shared value using OpaqueValueExpr. This fixes an unnoticed problem with deserialization of these expressions where the deserialized form would lose the vital pointer-equality trait; or rather, it fixes it because this patch also does the right thing for deserializing OVEs. Change OVEs to not be a "temporary object" in the sense that copy elision is permitted. This new representation is not totally unawkward to work with, but I think that's really part and parcel with the semantics we're modelling here. In particular, it's much easier to fix things like the copy elision bug and to make the CFG look right. I've tried to update the analyzer to deal with this in at least some obvious cases, and I think we get a much better CFG out, but the printing of OpaqueValueExprs probably needs some work. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125744 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-17Step #1/N of implementing support for __label__: split labels intoChris Lattner
LabelDecl and LabelStmt. There is a 1-1 correspondence between the two, but this simplifies a bunch of code by itself. This is because labels are the only place where we previously had references to random other statements, causing grief for AST serialization and other stuff. This does cause one regression (attr(unused) doesn't silence unused label warnings) which I'll address next. This does fix some minor bugs: 1. "The only valid attribute " diagnostic was capitalized. 2. Various diagnostics printed as ''labelname'' instead of 'labelname' 3. This reduces duplication of label checking between functions and blocks. Review appreciated, particularly for the cindex and template bits. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125733 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-16Makes most methods in SVals.h conform to the naming guide. ReviewedZhanyong Wan
by kremenek. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125687 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-15[analyzer] Use the new registration mechanism on some of the internal ↵Argyrios Kyrtzidis
checks. These are: StackAddrLeakChecker ObjCAtSyncChecker UnixAPIChecker MacOSXAPIChecker The rest have/create implicit dependencies between checkers and need to be handled differently. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125559 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-14[analyzer] Overhauling of the checker registration mechanism.Argyrios Kyrtzidis
-Checkers will be defined in the tablegen file 'Checkers.td'. -Apart from checkers, we can define checker "packages" that will contain a collection of checkers. -Checkers can be enabled with -analyzer-checker=<name> and disabled with -analyzer-disable-checker=<name> e.g: Enable checkers from 'cocoa' and 'corefoundation' packages except the self-initialization checker: -analyzer-checker=cocoa -analyzer-checker=corefoundation -analyzer-disable-checker=cocoa.SelfInit -Introduces CheckerManager and CheckerProvider. CheckerProviders get the set of checker names to enable/disable and register them with the CheckerManager which will be the entry point for all checker-related functionality. Currently only the self-initialization checker takes advantage of the new mechanism. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125503 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
2011-02-09AST, Sema, Serialization: add CUDAKernelCallExpr and related semantic actionsPeter Collingbourne
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125217 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09Remove vtables from the Stmt hierarchy; this was pretty easy asJohn McCall
there were only three virtual methods of any significance. The primary way to grab child iterators now is with Stmt::child_range children(); Stmt::const_child_range children() const; where a child_range is just a std::pair of iterators suitable for being llvm::tie'd to some locals. I've left the old child_begin() and child_end() accessors in place, but it's probably a substantial penalty to grab the iterators individually now, since the switch-based dispatch is kindof inherently slower than vtable dispatch. Grabbing them together is probably a slight win over the status quo, although of course we could've achieved that with vtables, too. I also reclassified SwitchCase (correctly) as an abstract Stmt class, which (as the first such class that wasn't an Expr subclass) required some fiddling in a few places. There are somewhat gross metaprogramming hooks in place to ensure that new statements/expressions continue to implement getSourceRange() and children(). I had to work around a recent clang bug; dgregor actually fixed it already, but I didn't want to introduce a selfhosting dependency on ToT. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125183 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-09static analyzer: Further reduce the analyzer's memory usage when analyzing ↵Ted Kremenek
sqlite3 by 7-10% by recylcing "uninteresting" ExplodedNodes. The optimization involves eagerly pruning ExplodedNodes from the ExplodedGraph that contain practically no difference between the predecessor and successor nodes. For example, if the state is different between a predecessor and a node, the node is left in. Only for the 'environment' component of the state do we not care if the ExplodedNodes are different. This paves the way for future optimizations where we can reclaim the environment objects. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@125154 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
2011-02-03[analyzer] Fix a crash until we can handle temporary struct objects properly.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124822 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-27[analyzer] Fix crash when handling dot syntax on 'super'.Argyrios Kyrtzidis
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124376 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-26[analyzer] Enable the self-init checker under command-line option ↵Argyrios Kyrtzidis
'-analyzer-check-objc-self-init' which by default is enabled by the driver for '--analyze'. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124266 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25Recycle memory for GRStates that are never referencedTed Kremenek
by ExplodedNodes. This leads to about a 4-8% reduction in memory footprint when analyzing functions in sqlite3. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124214 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Handle the dot syntax for properties in the ExprEngine.Argyrios Kyrtzidis
We translate property accesses to obj-c messages by simulating "loads" or "stores" to properties using a pseudo-location SVal kind (ObjCPropRef). Checkers can now reason about obj-c messages for both explicit message expressions and implicit messages due to property accesses. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124161 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Introduce ExprEngine::VisitObjCMessage for handling general ↵Argyrios Kyrtzidis
ObjCMessages (both message expressions and property access) and use it in ExprEngine::VisitObjCMessageExpr. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124160 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-25[analyzer] Introduce ObjCMessage which represents both explicit ObjC message ↵Argyrios Kyrtzidis
expressions and implicit messages that are sent for handling properties in dot syntax. Replace all direct uses of ObjCMessageExpr in the checkers and checker interface with ObjCMessage. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124159 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-18Fix warnings found by gcc-4.6, from -Wunused-but-set-variable andJeffrey Yasskin
-Wint-to-pointer-cast. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123719 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-15Introduce a new expression kind, SubstNonTypeTemplateParmPackExpr,Douglas Gregor
that captures the substitution of a non-type template argument pack for a non-type template parameter pack within a pack expansion that cannot be fully expanded. This follows the approach taken by SubstTemplateTypeParmPackType. git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@123506 91177308-0d34-0410-b5e6-96231b3b80d8
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