ReachableCode.cpp File Reference (original) (raw)

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Namespaces
namespace	clang
	The JSON file list parser is used to communicate input to InstallAPI.

namespace	clang::reachable_code

Functions
static bool	isEnumConstant (const Expr *Ex)

static bool	isTrivialExpression (const Expr *Ex)

static bool	isTrivialDoWhile (const CFGBlock B, const Stmt S)

static bool	isBuiltinUnreachable (const Stmt *S)

static bool	isBuiltinAssumeFalse (const CFGBlock B, const Stmt S, ASTContext &C)

static bool	isDeadReturn (const CFGBlock B, const Stmt S)

static SourceLocation	getTopMostMacro (SourceLocation Loc, SourceManager &SM)

static bool	isExpandedFromConfigurationMacro (const Stmt *S, Preprocessor &PP, bool IgnoreYES_NO=false)
	Returns true if the statement is expanded from a configuration macro.

static bool	isConfigurationValue (const ValueDecl *D, Preprocessor &PP)

static bool	isConfigurationValue (const Stmt S, Preprocessor &PP, SourceRange SilenceableCondVal=nullptr, bool IncludeIntegers=true, bool WrappedInParens=false)
	Returns true if the statement represents a configuration value.

static bool	shouldTreatSuccessorsAsReachable (const CFGBlock *B, Preprocessor &PP)
	Returns true if we should always explore all successors of a block.

static unsigned	scanFromBlock (const CFGBlock Start, llvm::BitVector &Reachable, Preprocessor PP, bool IncludeSometimesUnreachableEdges)

static unsigned	scanMaybeReachableFromBlock (const CFGBlock *Start, Preprocessor &PP, llvm::BitVector &Reachable)

static bool	isInCoroutineStmt (const Stmt DeadStmt, const CFGBlock Block)

static bool	isValidDeadStmt (const Stmt S, const clang::CFGBlock Block)

static int	SrcCmp (const std::pair< const CFGBlock , const Stmt > p1, const std::pair< const CFGBlock , const Stmt * > *p2)

static SourceLocation	GetUnreachableLoc (const Stmt *S, SourceRange &R1, SourceRange &R2)

unsigned	clang::reachable_code::ScanReachableFromBlock (const CFGBlock *Start, llvm::BitVector &Reachable)
	ScanReachableFromBlock - Mark all blocks reachable from Start.

void	clang::reachable_code::FindUnreachableCode (AnalysisDeclContext &AC, Preprocessor &PP, Callback &CB)

◆ getTopMostMacro()

◆ GetUnreachableLoc()

Definition at line 597 of file ReachableCode.cpp.

References clang::CXXFunctionalCastExpr::getBeginLoc(), clang::ArraySubscriptExpr::getLHS(), clang::BinaryOperator::getLHS(), clang::CStyleCastExpr::getLParenLoc(), clang::ObjCBridgedCastExpr::getLParenLoc(), clang::MemberExpr::getMemberLoc(), clang::UnaryOperator::getOperatorLoc(), clang::BinaryOperator::getOperatorLoc(), clang::AbstractConditionalOperator::getQuestionLoc(), clang::ArraySubscriptExpr::getRBracketLoc(), clang::ArraySubscriptExpr::getRHS(), clang::BinaryOperator::getRHS(), clang::Stmt::getSourceRange(), clang::CastExpr::getSubExpr(), and clang::UnaryOperator::getSubExpr().

◆ isBuiltinAssumeFalse()

◆ isBuiltinUnreachable()

static bool isBuiltinUnreachable ( const Stmt * S)	static

◆ isConfigurationValue() [1/2]

Returns true if the statement represents a configuration value.

A configuration value is something usually determined at compile-time to conditionally always execute some branch. Such guards are for "sometimes unreachable" code. Such code is usually not interesting to report as unreachable, and may mask truly unreachable code within those blocks.

Definition at line 189 of file ReachableCode.cpp.

References E, clang::BinaryOperator::getLHS(), clang::UnaryOperator::getOpcode(), clang::BinaryOperator::getRHS(), clang::Stmt::getSourceRange(), clang::UnaryOperator::getSubExpr(), clang::Expr::IgnoreCasts(), clang::BinaryOperator::isComparisonOp(), isConfigurationValue(), isExpandedFromConfigurationMacro(), and clang::BinaryOperator::isLogicalOp().

◆ isConfigurationValue() [2/2]

◆ isDeadReturn()

◆ isEnumConstant()

static bool isEnumConstant ( const Expr * Ex)	static

◆ isExpandedFromConfigurationMacro()

◆ isInCoroutineStmt()

static bool isInCoroutineStmt ( const Stmt * DeadStmt, const CFGBlock * Block )	static

◆ isTrivialDoWhile()

◆ isTrivialExpression()

static bool isTrivialExpression ( const Expr * Ex)	static

◆ isValidDeadStmt()

◆ scanFromBlock()

◆ scanMaybeReachableFromBlock()

◆ shouldTreatSuccessorsAsReachable()

◆ SrcCmp()

static int SrcCmp ( const std::pair< const CFGBlock , const Stmt > * p1, const std::pair< const CFGBlock , const Stmt > * p2 )	static