28 Apr
2008
28 Apr
'08
2:13 p.m.
On Monday 28 April 2008, Christian Koch wrote:
you're right. The manpage of gcc says for mtune:
While picking a specific cpu-type will schedule things appropriately
for that particular chip, the compiler will not generate any code
that does not run on the i386 without the -march=cpu-type option
being used.
But as I have a Pentium III, I wouldn't benefit of "mtune=prescott",
although the compiled code will run on my machine, of course. I think
the correct way would be to have a configure script determining the CPU
type and using that type for mtune (I know, that would be a lot of
work....).
When you fixed the Makefile in SVN, just tell me, so I can test it.
Hi Christian,
sure, this would be the best way. But as both gcc 3.X and pentium3 are not
that much in use anymore, i think that 'pentium4' as optimization works for
the most people at the moment.
I just commited the fix for the trunk and 1.3 branch.
Henning