Le Lundi 13 Février 2006 22:40, Dan Ingalls a écrit :
> I take issue with the "of course" here.  I defy anyone to demonstrate a
> significant (even detectable) speedup of == over = between SmallIntegers on
> any meaningful benchmark.

Just to confirm Dan says, i did this in VW 7.3 and squeak 3.8

| t1 t2 t3 |
t1 := Time millisecondsToRun: [10000000 timesRepeat: [#(1 2 3 4) isEmpty]].
t2 := Time millisecondsToRun: [10000000 timesRepeat: [#(1 2 3 4) size = 0]].
t3 := Time millisecondsToRun: [10000000 timesRepeat: [#(1 2 3 4) size == 0]].
^Array with: t1 with: t2 with: t3

VW:
 #(627 311 291)
 #(693 302 292)

Squeak:
 #(6619 3959 4146)
#(6558 3976 4126)

If such optimization matter, should be at the VM level...
need a guru for JIT, method cache or something we have not yet...
but don't bother too much at upper level.