GotoStmt Class Reference

#include <stmt.h>

Inheritance diagram for GotoStmt:

Collaboration diagram for GotoStmt:

Public Member Functions
	GotoStmt (const char *label, SourcePos gotoPos, SourcePos idPos)
void	EmitCode (FunctionEmitContext *ctx) const
void	Print (int indent) const
Stmt *	Optimize ()
Stmt *	TypeCheck ()
int	EstimateCost () const
Public Member Functions inherited from Stmt
	Stmt (SourcePos p, unsigned scid)
Public Member Functions inherited from ASTNode
	ASTNode (SourcePos p, unsigned scid)
virtual	~ASTNode ()
unsigned	getValueID () const

Static Public Member Functions
static bool	classof (GotoStmt const *)
static bool	classof (ASTNode const *N)
Static Public Member Functions inherited from Stmt
static bool	classof (Stmt const *)
static bool	classof (ASTNode const *N)
Static Public Member Functions inherited from ASTNode
static bool	classof (ASTNode const *)

Public Attributes
std::string	label
SourcePos	identifierPos
Public Attributes inherited from ASTNode
SourcePos	pos

Additional Inherited Members
Public Types inherited from ASTNode
enum	ASTNodeTy {   AddressOfExprID, AssignExprID, BinaryExprID, ConstExprID,   DerefExprID, PtrDerefExprID, RefDerefExprID, ExprListID,   FunctionCallExprID, FunctionSymbolExprID, IndexExprID, StructMemberExprID,   VectorMemberExprID, NewExprID, NullPointerExprID, ReferenceExprID,   SelectExprID, SizeOfExprID, SymbolExprID, SyncExprID,   TypeCastExprID, UnaryExprID, MaxExprID, AssertStmtID,   BreakStmtID, CaseStmtID, ContinueStmtID, DeclStmtID,   DefaultStmtID, DeleteStmtID, DoStmtID, ExprStmtID,   ForeachActiveStmtID, ForeachStmtID, ForeachUniqueStmtID, ForStmtID,   GotoStmtID, IfStmtID, LabeledStmtID, PrintStmtID,   ReturnStmtID, StmtListID, SwitchStmtID, UnmaskedStmtID }

Detailed Description

A "goto" in an ispc program.

Definition at line 397 of file stmt.h.

Constructor & Destructor Documentation

GotoStmt()

GotoStmt::GotoStmt	(	const char *	label,
		SourcePos	gotoPos,
		SourcePos	idPos
	)

Definition at line 2471 of file stmt.cpp.

References identifierPos, and label.

Member Function Documentation

classof() [1/2]

static bool GotoStmt::classof ( GotoStmt const *  )

inlinestatic

Definition at line 401 of file stmt.h.

classof() [2/2]

static bool GotoStmt::classof ( ASTNode const *  N )

inlinestatic

Definition at line 402 of file stmt.h.

References Stmt::EmitCode(), ASTNode::EstimateCost(), ASTNode::getValueID(), ASTNode::GotoStmtID, Stmt::Optimize(), Stmt::Print(), and Stmt::TypeCheck().

EmitCode()

void GotoStmt::EmitCode ( FunctionEmitContext *  ctx ) const

virtual

Emit LLVM IR for the statement, using the FunctionEmitContext to create the necessary instructions.

Implements Stmt.

Definition at line 2476 of file stmt.cpp.

References FunctionEmitContext::BranchInst(), Error(), FunctionEmitContext::GetCurrentBasicBlock(), FunctionEmitContext::GetLabeledBasicBlock(), FunctionEmitContext::GetLabels(), identifierPos, FunctionEmitContext::InForeachLoop(), label, MatchStrings(), ASTNode::pos, FunctionEmitContext::SetCurrentBasicBlock(), and FunctionEmitContext::VaryingCFDepth().

EstimateCost()

int GotoStmt::EstimateCost ( ) const

virtual

Estimate the execution cost of the node (not including the cost of the children. The value returned should be based on the COST_* enumerant values defined in ispc.h.

Implements ASTNode.

Definition at line 2520 of file stmt.cpp.

References COST_GOTO.

Optimize()

Stmt * GotoStmt::Optimize ( )

virtual

The Optimize() method should perform any appropriate early-stage optimizations on the node (e.g. constant folding). This method will be called after the node's children have already been optimized, and the caller will store the returned ASTNode * in place of the original node. This method should return NULL if an error is encountered during optimization.

Reimplemented from Stmt.

Definition at line 2516 of file stmt.cpp.

Print()

void GotoStmt::Print ( int  indent ) const

virtual

Print a representation of the statement (and any children AST nodes) to standard output. This method is used for debuggins.

Implements Stmt.

Definition at line 2514 of file stmt.cpp.

References label.

TypeCheck()

Stmt * GotoStmt::TypeCheck ( )

virtual

Type checking should be performed by the node when this method is called. In the event of an error, a NULL value may be returned. As with ASTNode::Optimize(), the caller should store the returned pointer in place of the original ASTNode *.

Implements Stmt.

Definition at line 2518 of file stmt.cpp.

Member Data Documentation

identifierPos

SourcePos GotoStmt::identifierPos

Definition at line 413 of file stmt.h.

Referenced by EmitCode(), and GotoStmt().

label

std::string GotoStmt::label

Name of the label to jump to when the goto is executed.

Definition at line 412 of file stmt.h.

Referenced by EmitCode(), GotoStmt(), and Print().

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The documentation for this class was generated from the following files:

• stmt.h
• stmt.cpp