29-06-2010 22:03, Bill Longman yazmış:
On 06/29/2010 05:54 PM, Hasan SAHIN wrote:
Hello all,
I am using Athlon64 X2 processor with the
CFLAGS="-march=k8 -O2 -pipe -fomit-frame-pointer" option.
Can I use the -march=native option instead of that?
Sorry, Hasan, I dropped my "3"s.
-msse3 and -march=k8-sse3
Hi Bill,
I have read the safe flags document and it says that :
/GCC 4.2 introduces a new -march option, -march=*native*, which
automatically detects the features your CPU supports and sets the
options appropriately. If you have an Intel or AMD CPU and are using
>=sys-devel/gcc-4.2.3, using -march=native is recommended. Do *not* use
-march=native if you use distcc on nodes with different architectures as
this may produce unusable code. /
which I understood, I can use the -march=native option instead of
CFLAGS="-march=k8-msse3 -O2 -pipe -fomit-frame-pointer"
is it true?
Regards,
Hasan.
