#include <occurences.hh>

Public Member Functions
	Occurences (int v, int r)
Occurences *	incOccurences (int v, int r, int d)
	inc occurences in context v,r,d
bool	hasMultiOccurences () const
	true if multiple occurences or occ. in higher ctxt
bool	hasOutDelayOccurences () const
	true if has occurences outside a a delay
int	getMaxDelay () const
	return the maximal delay collected
int	getMinDelay () const
	return the minimal delay collected
Private Attributes
const int	fXVariability
	Extended Variability of the expression.
int	fOccurences [4]
	Occurences count according to Contexts.
bool	fMultiOcc
	True when exp has multiple occ. or occ. in higher ctxt.
bool	fOutDelayOcc
	True when exp has at least one occ. outside a delay.
int	fMinDelay
	Minimal fix delay usage.
int	fMaxDelay
	Maximal fix delay usage.

Detailed Description

Definition at line 7 of file occurences.hh.

Constructor & Destructor Documentation

Occurences::Occurences	(	int	v,
		int	r
	)

Definition at line 27 of file occurences.cpp.

References fMaxDelay, fMultiOcc, fOccurences, and fOutDelayOcc.

                                   : fXVariability(xVariability(v,r)) {
    for (int i=0; i<4; i++) fOccurences[i]=0;
    fMultiOcc = false;
    fMaxDelay = 0;
    fOutDelayOcc = false;
}

Member Function Documentation

int Occurences::getMaxDelay ( ) const

return the maximal delay collected

Definition at line 54 of file occurences.cpp.

References fMaxDelay.

Referenced by VectorCompiler::generateCacheCode(), ScalarCompiler::generateCacheCode(), DocCompiler::generateCacheCode(), ScalarCompiler::generateFConst(), DocCompiler::generateFConst(), VectorCompiler::generateFixDelay(), DocCompiler::generateFVar(), ScalarCompiler::generateNumber(), DocCompiler::generateNumber(), DocCompiler::generateRec(), and VectorCompiler::needSeparateLoop().

{
    return fMaxDelay;
}

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int Occurences::getMinDelay ( ) const

return the minimal delay collected

bool Occurences::hasMultiOccurences ( ) const

true if multiple occurences or occ. in higher ctxt

Definition at line 50 of file occurences.cpp.

References fMultiOcc.

{ return fMultiOcc; }

bool Occurences::hasOutDelayOccurences ( ) const

true if has occurences outside a a delay

Definition at line 52 of file occurences.cpp.

References fOutDelayOcc.

{ return fOutDelayOcc; }

Occurences * Occurences::incOccurences	(	int	v,
		int	r,
		int	d
	)

inc occurences in context v,r,d

Definition at line 34 of file occurences.cpp.

References fMaxDelay, fMultiOcc, fOccurences, fOutDelayOcc, fXVariability, and xVariability().

Referenced by OccMarkup::incOcc().

                                                         {
    int ctxt = xVariability(v,r);
    //assert (ctxt >= fXVariability);
    fOccurences[ctxt] += 1;
    fMultiOcc = fMultiOcc | (ctxt > fXVariability) | (fOccurences[ctxt] > 1);
    if (d == 0) {
        //cerr << "Occurence outside a delay " << endl;
        fOutDelayOcc = true;
    }
    if (d > fMaxDelay) {
        //cerr << "Max delay : " << fMaxDelay << " <- " << d << endl;
        fMaxDelay = d;
    }
    return this;
}