------- Comment #2 from ubizjak at gmail dot com 2010-05-09 07:25 -------
>From config/driver-i386.c
[...]
case PROCESSOR_PENTIUMPRO:
if (model == 28)
cpu = "atom";
else if (model >= 28 && l2sizekb < 2048)
/* Assume it's a small core if there's less than 2MB cache */
cpu = "atom";
else if (has_longmode)
cpu = "core2";
And from cpuid:
cpu family : 6
model : 37
cache size : 3072 KB
driver detects --param l2-cache-size=3072 and -march=atom ... WTF ?
Can you please step through the driver with debugger and determine _exact_
values of model and l2sizekb in the above source? It is around line 540 in
gcc/config/i386/driver-i386.c.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44046
