[Ecls-list] Minor optimizations are usually the most relevant

[Juan Jose Garcia-Ripoll]

>From running the ANSI test suite

real time : 189.953 secs
run time  : 99.580 secs

Yesterday the run time was around 109 secs. The change? ecl_eql() now
returns immediately when the types are immediates (i.e. EQL is EQ for them).
In other words, changing

bool
ecl_eql(cl_object x, cl_object y)
{
cl_type t;
if (x == y)
 return TRUE;
        t = type_of(x);
        if (t != type_of(y))
                return FALSE;
switch (t) {

to this

bool
ecl_eql(cl_object x, cl_object y)
{
if (x == y)
return TRUE;
        if (IMMEDIATE(x) || IMMEDIATE(y))
                return FALSE;
        if (x->d.t != y->d.t)
                return FALSE;
switch (x->d.t) {

This kind of things always amaze me.

BTW, before the quest for optimizations began, ECL used around 126 seconds
to run the test suite.

Juanjo

-- 
Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
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