Description:
------------
I compiled PHP 5.2.2 with CFLAGS="-O2 -march=pentium4
-mcpu=pentium4", as usual (I've done so with all the 5.x.x series, and the
proc is a Pentium 4, of course) and a customer complained about weird
results in one of his scripts. I isolated the problem to be related to the
floor function. The problem was that it returned weird results. Sample
script:

<?php

$nt = 100;
$promrow2['uni_gifts'] = 1;
$promrow2['unidades'] = 10;
$calc_cnt=floor(($nt*$promrow2['uni_gifts'])/$promrow2['unidades']);

print $calc_cnt;

?>

printed :.0000000001

I needed to cast (int)floor to get the right result. I recompiled with CFLAGS="-O2 -march=i686 -mcpu=i686" and the problem was solved. I've compiled 5.2.2 with nocona optimizations without problems in other machines.

Software:

PHP 5.2.2
GCC 3.2.2


Reproduce code:
---------------
<?php

$nt = 100;
$promrow2['uni_gifts'] = 1;
$promrow2['unidades'] = 10;
$calc_cnt=floor(($nt*$promrow2['uni_gifts'])/$promrow2['unidades']);

print $calc_cnt;

?>


Expected result:
----------------
10

Actual result:
--------------
:.0000000001