BlockEdge Struct Reference

A control-flow edge between blocks (FlowBlock) More...

#include <block.hh>

Public Member Functions
	BlockEdge (void)
	Constructor for use with decode.
	BlockEdge (FlowBlock *pt, uint4 lab, int4 rev)
	Constructor.
void	encode (Encoder &encoder) const
	Encode this edge to a stream. More...
void	decode (Decoder &decoder, BlockMap &resolver)
	Restore this edge from a stream. More...

Public Attributes
uint4	label
	Label of the edge.
FlowBlock *	point
	Other end of the edge.
int4	reverse_index
	Index for edge coming other way.

Detailed Description

A control-flow edge between blocks (FlowBlock)

The edge is owned by the source block and can have FlowBlock::edge_flags labels applied to it. The point indicates the FlowBlock at the other end from the source block. NOTE: The control-flow direction of the edge can only be determined from context, whether the edge is in the incoming or outgoing edge list.

Member Function Documentation

decode()

void BlockEdge::decode	(	Decoder &	decoder,
		BlockMap &	resolver
	)

Restore this edge from a stream.

Parse an <edge> element

Parameters

decoder	is the stream decoder
resolver	is used to cross-reference the edge's FlowBlock endpoints

References ATTRIB_END, ATTRIB_REV, Decoder::closeElement(), ELEM_EDGE, BlockMap::findLevelBlock(), label, Decoder::openElement(), point, Decoder::readSignedInteger(), and reverse_index.

Referenced by FlowBlock::decodeNextInEdge().

encode()

void BlockEdge::encode

(

Encoder &

encoder

)

const

Encode this edge to a stream.

The edge is saved assuming we already know what block we are in.

Parameters

encoder

is the stream encoder

References ATTRIB_END, ATTRIB_REV, Encoder::closeElement(), ELEM_EDGE, FlowBlock::getIndex(), Encoder::openElement(), point, reverse_index, and Encoder::writeSignedInteger().

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

• block.hh
• block.cc