On Sat, Sep 24, 2005 at 11:10:35PM +0100, Jonathan Wright wrote
> however since that version -mcpu has been depreciated in favor for -mtune.
I use -march, so that point is moot.
> As for the mmx information, that's valid across all gcc versions. If
> you specify -march=pentium4 and -mcpu=penti
Walter Dnes wrote:
I'm running gcc 3.3.6. I just ran "emerge --sync" a few minutes ago.
Running "emerge --ask --deep --update --world" doesn't mention gcc. Are
you unmasking a test version?
I think gcc-3.4* is still marked ~x86; however since that version -mcpu
has been depreciated in favo
On Sat, Sep 24, 2005 at 09:45:30PM +0100, Jonathan Wright wrote
> In theory, yes it is sort of obsolete - sse and sse2 are the preferred
> method. However, so long as you have specified -march=pentium4 (and
> -mcpu=pentium4 or -mtune=pentium4 with >=gcc-3.4) mmx/sse/sse2 will be
> implied as part
Robert Persson wrote:
> Should I enable the mmx use flag when I am compiling stuff (e.g. mplayer) for
> a pentium 4? I'm confused because I've kind of got the idea that mmx is
> obsolete, but I'm not clear exactly how obsolete.
In theory, yes it is sort of obsolete - sse and sse2 are the prefer
Should I enable the mmx use flag when I am compiling stuff (e.g. mplayer) for
a pentium 4? I'm confused because I've kind of got the idea that mmx is
obsolete, but I'm not clear exactly how obsolete.
Many thanks
Robert
--
Robert Persson
"Don't use nuclear weapons to troubleshoot faults."
(US
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