clang
6.0.0
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#include "clang/StaticAnalyzer/Core/PathSensitive/ExprEngine.h"
#include "PrettyStackTraceLocationContext.h"
#include "clang/AST/CXXInheritance.h"
#include "clang/AST/DeclCXX.h"
#include "clang/AST/ParentMap.h"
#include "clang/Analysis/Analyses/LiveVariables.h"
#include "clang/StaticAnalyzer/Core/CheckerManager.h"
#include "clang/StaticAnalyzer/Core/PathSensitive/CallEvent.h"
#include "llvm/ADT/SmallSet.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/SaveAndRestore.h"
Go to the source code of this file.
Macros | |
#define | DEBUG_TYPE "ExprEngine" |
Enumerations | |
enum | DynamicDispatchMode |
enum | CallInlinePolicy { CIP_Allowed, CIP_DisallowedOnce, CIP_DisallowedAlways } |
Functions | |
STATISTIC (NumOfDynamicDispatchPathSplits, "The # of times we split the path due to imprecise dynamic dispatch info") | |
STATISTIC (NumInlinedCalls, "The # of times we inlined a call") | |
STATISTIC (NumReachedInlineCountMax, "The # of times we reached inline count maximum") | |
static std::pair< const Stmt *, const CFGBlock * > | getLastStmt (const ExplodedNode *Node) |
static SVal | adjustReturnValue (SVal V, QualType ExpectedTy, QualType ActualTy, StoreManager &StoreMgr) |
Adjusts a return value when the called function's return type does not match the caller's expression type. More... | |
static bool | wasDifferentDeclUsedForInlining (CallEventRef<> Call, const StackFrameContext *calleeCtx) |
static bool | isTemporaryPRValue (const CXXConstructExpr *E, SVal V) |
Returns true if the CXXConstructExpr E was intended to construct a prvalue for the region in V . More... | |
REGISTER_TRAIT_WITH_PROGRAMSTATE (DynamicDispatchBifurcationMap, CLANG_ENTO_PROGRAMSTATE_MAP(const MemRegion *, unsigned)) bool ExprEngine | |
static ProgramStateRef | getInlineFailedState (ProgramStateRef State, const Stmt *CallE) |
static CallInlinePolicy | mayInlineCallKind (const CallEvent &Call, const ExplodedNode *Pred, AnalyzerOptions &Opts) |
static bool | hasMember (const ASTContext &Ctx, const CXXRecordDecl *RD, StringRef Name) |
Returns true if the given C++ class contains a member with the given name. More... | |
static bool | isContainerClass (const ASTContext &Ctx, const CXXRecordDecl *RD) |
Returns true if the given C++ class is a container or iterator. More... | |
static bool | isContainerMethod (const ASTContext &Ctx, const FunctionDecl *FD) |
Returns true if the given function refers to a method of a C++ container or iterator. More... | |
static bool | isCXXSharedPtrDtor (const FunctionDecl *FD) |
Returns true if the given function is the destructor of a class named "shared_ptr". More... | |
static bool | mayInlineDecl (AnalysisDeclContext *CalleeADC, AnalyzerOptions &Opts) |
Returns true if the function in CalleeADC may be inlined in general. More... | |
static bool | isTrivialObjectAssignment (const CallEvent &Call) |
#define DEBUG_TYPE "ExprEngine" |
Definition at line 29 of file ExprEngineCallAndReturn.cpp.
enum CallInlinePolicy |
Enumerator | |
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CIP_Allowed | |
CIP_DisallowedOnce | |
CIP_DisallowedAlways |
Definition at line 573 of file ExprEngineCallAndReturn.cpp.
enum DynamicDispatchMode |
Definition at line 394 of file ExprEngineCallAndReturn.cpp.
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Adjusts a return value when the called function's return type does not match the caller's expression type.
This can happen when a dynamic call is devirtualized, and the overridding method has a covariant (more specific) return type than the parent's method. For C++ objects, this means we need to add base casts.
Definition at line 127 of file ExprEngineCallAndReturn.cpp.
References clang::ento::StoreManager::evalDerivedToBase(), clang::CXXBasePaths::front(), clang::ento::SVal::getAs(), clang::QualType::getCanonicalType(), clang::Type::getCanonicalTypeUnqualified(), clang::Type::getPointeeCXXRecordDecl(), clang::CXXBasePaths::isAmbiguous(), clang::CXXRecordDecl::isDerivedFrom(), and clang::Type::isObjCObjectPointerType().
Referenced by clang::ento::ExprEngine::processCallExit().
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Definition at line 459 of file ExprEngineCallAndReturn.cpp.
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Definition at line 74 of file ExprEngineCallAndReturn.cpp.
Referenced by clang::ento::ExprEngine::processCallExit(), and clang::ento::ExprEngine::removeDeadOnEndOfFunction().
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Returns true if the given C++ class contains a member with the given name.
Definition at line 674 of file ExprEngineCallAndReturn.cpp.
Referenced by isContainerClass().
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Returns true if the given C++ class is a container or iterator.
Our heuristic for this is whether it contains a method named 'begin()' or a nested type named 'iterator' or 'iterator_category'.
Definition at line 696 of file ExprEngineCallAndReturn.cpp.
References hasMember().
Referenced by isContainerMethod().
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Returns true if the given function refers to a method of a C++ container or iterator.
We generally do a poor job modeling most containers right now, and might prefer not to inline their methods.
Definition at line 707 of file ExprEngineCallAndReturn.cpp.
References isContainerClass().
Referenced by mayInlineDecl().
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Returns true if the given function is the destructor of a class named "shared_ptr".
Definition at line 716 of file ExprEngineCallAndReturn.cpp.
References clang::DeclarationName::getAsIdentifierInfo(), clang::NamedDecl::getDeclName(), and clang::CXXMethodDecl::getParent().
Referenced by mayInlineDecl().
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Returns true if the CXXConstructExpr E
was intended to construct a prvalue for the region in V
.
Note that we can't just test for rvalue vs. glvalue because CXXConstructExprs embedded in DeclStmts and initializers are considered rvalues by the AST, and the analyzer would like to treat them as lvalues.
Definition at line 202 of file ExprEngineCallAndReturn.cpp.
Referenced by clang::ento::ExprEngine::processCallExit().
Definition at line 875 of file ExprEngineCallAndReturn.cpp.
References clang::CXXInstanceCall::getDecl(), clang::CXXMethodDecl::isCopyAssignmentOperator(), clang::CXXMethodDecl::isMoveAssignmentOperator(), and clang::FunctionDecl::isTrivial().
Referenced by clang::ento::ExprEngine::defaultEvalCall().
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Definition at line 579 of file ExprEngineCallAndReturn.cpp.
References clang::CFG::BuildOptions::AddImplicitDtors, clang::CFG::BuildOptions::AddInitializers, clang::ento::CE_Block, clang::ento::CE_CXXAllocator, clang::ento::CE_CXXConstructor, clang::ento::CE_CXXDestructor, clang::ento::CE_CXXMember, clang::ento::CE_CXXMemberOperator, clang::ento::CE_Function, clang::ento::CE_ObjCMessage, clang::CIMK_Constructors, clang::CIMK_Destructors, clang::CIMK_MemberFunctions, CIP_Allowed, CIP_DisallowedAlways, CIP_DisallowedOnce, clang::CXXConstructExpr::CK_Complete, clang::LocationContext::getAnalysisDeclContext(), clang::ento::SVal::getAsRegion(), clang::AnalysisDeclContext::getCFGBuildOptions(), clang::CXXConstructExpr::getConstructionKind(), clang::LocationContext::getCurrentStackFrame(), clang::CXXConstructorCall::getCXXThisVal(), clang::CXXConstructorCall::getDecl(), clang::AnalyzerOptions::getIPAMode(), clang::ento::CallEvent::getKind(), clang::ento::ExplodedNode::getLocationContext(), clang::CXXConstructorCall::getOriginExpr(), clang::ParentMap::getParent(), clang::CXXMethodDecl::getParent(), clang::LocationContext::getParentMap(), clang::CXXRecordDecl::hasTrivialDestructor(), clang::IPAK_DynamicDispatch, clang::IPAK_DynamicDispatchBifurcate, clang::AnalyzerOptions::mayInlineCXXAllocator(), clang::AnalyzerOptions::mayInlineCXXMemberFunction(), clang::AnalyzerOptions::mayInlineObjCMethod(), and Parent.
Referenced by mayInlineDecl().
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Returns true if the function in CalleeADC
may be inlined in general.
This checks static properties of the function, such as its signature and CFG, to determine whether the analyzer should ever consider inlining it, in any context.
Definition at line 734 of file ExprEngineCallAndReturn.cpp.
References CIP_Allowed, CIP_DisallowedAlways, clang::AnalyzerOptions::getAlwaysInlineSize(), clang::AnalysisDeclContext::getAnalysis(), clang::ento::AnalysisManager::getAnalysisDeclContextManager(), clang::ento::ExprEngine::getAnalysisManager(), clang::AnalysisDeclContext::getASTContext(), clang::AnalysisDeclContext::getCFG(), clang::AnalysisDeclContextManager::getContext(), clang::AnalysisDeclContext::getDecl(), clang::ASTContext::getLangOpts(), clang::ento::ExplodedNode::getLocationContext(), clang::AnalyzerOptions::getMaxInlinableSize(), clang::AnalyzerOptions::getMaxTimesInlineLarge(), clang::AnalyzerOptions::getMinCFGSizeTreatFunctionsAsLarge(), clang::CFG::getNumBlockIDs(), clang::ASTContext::getSourceManager(), clang::ento::ExprEngine::Inline_Minimal, clang::AnalyzerOptions::InlineMaxStackDepth, clang::AnalysisDeclContext::isBodyAutosynthesized(), isContainerMethod(), isCXXSharedPtrDtor(), clang::SourceManager::isInMainFile(), clang::AnalysisDeclContext::isInStdNamespace(), clang::SourceManager::isInSystemHeader(), clang::ento::CallEvent::isVariadic(), mayInlineCallKind(), clang::AnalyzerOptions::mayInlineCXXContainerMethods(), clang::AnalyzerOptions::mayInlineCXXSharedPtrDtor(), clang::AnalyzerOptions::mayInlineCXXStandardLibrary(), clang::AnalyzerOptions::mayInlineTemplateFunctions(), clang::ento::AnalysisManager::options, clang::ento::AnalysisManager::shouldInlineCall(), and clang::FunctionDecl::TK_NonTemplate.
REGISTER_TRAIT_WITH_PROGRAMSTATE | ( | DynamicDispatchBifurcationMap | , |
CLANG_ENTO_PROGRAMSTATE_MAP(const MemRegion *, unsigned) | |||
) |
Definition at line 400 of file ExprEngineCallAndReturn.cpp.
References clang::ento::CE_Block, clang::AnalysisDeclContext::getBlockInvocationContext(), clang::LocationContext::getCurrentStackFrame(), clang::ento::CallEvent::getKind(), clang::ento::ExplodedNode::getLocationContext(), clang::ento::CallEvent::getOriginExpr(), clang::AnalysisDeclContext::getStackFrame(), and clang::ento::NodeBuilder::takeNodes().
STATISTIC | ( | NumOfDynamicDispatchPathSplits | , |
"The # of times we split the path due to imprecise dynamic dispatch info" | |||
) |
STATISTIC | ( | NumInlinedCalls | , |
"The # of times we inlined a call" | |||
) |
STATISTIC | ( | NumReachedInlineCountMax | , |
"The # of times we reached inline count maximum" | |||
) |
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Definition at line 186 of file ExprEngineCallAndReturn.cpp.
References clang::Decl::getCanonicalDecl(), and clang::LocationContext::getDecl().
Referenced by clang::ento::ExprEngine::processCallExit().