16 Jun
2004
16 Jun
'04
10:06 a.m.
Has anyone tested gcc's -mfpmath=sse2 option in regards to denormals?
i was usually using -mfpmath=sse -mmmx -msse -msse2 -march=pentium4 as CFLAGS, and still got cpu spikes... the instruction set that is important for us is sse, since that's working on floats (mmx on integer, sse2 on double)
my experience is that using different compilers / CFLAGS has little influence on denormals... it's much better to improve the denormal detection / removal algorithms...
cheers...
--
Tim mailto:TimBlechmann@gmx.de
ICQ: 96771783
--
The only people for me are the mad ones, the ones who are mad to live,
mad to talk, mad to be saved, desirous of everything at the same time,
the ones who never yawn or say a commonplace thing, but burn, burn,
burn, like fabulous yellow roman candles exploding like spiders across
the stars and in the middle you see the blue centerlight pop and
everybody goes "Awww!"
Jack Kerouac