Base compiler and amdfam10 - anybody/anything?

[Vladimir Kushnir]

Hi,
Are there any attempts to bring to -CURRENT newer AMD chips support? 
Personally, I've just tried to apply the patches from openSUSE's gcc-4.2.1 
SRPM. With slight adaptation they've applied and gave rather significant 
boost in resulting code speed. At least, testfcpy by Alexander Konovalenko 
(http://daemon.safety.sci.kth.se/~kono/testfcpu) gave me ~20% (!) speedup 
with -march=amdfam10 compared to our -march=athlon64-sse3 on Phenom II 
970.
Unfortunately, the patched compiler with -march=amdfam10 fails in 
buildworld ("internal compiler error"'s while compiling clang). The 
buildworld was successful with patched compiler and -march=athlon64-sse3 
but since this is my main working system... Well, I had to come back to 
our unpatched compiler :-(
If anyone is interested, the patches were taken from 
gcc42-4.2.1_20070724-17.src.rpm (actually, I applied all the patches 
marked as AMD stuff), the resulting patches towards our src/contrib/gcc 
and share/mk/bsd.cpu.mk are attached (or I can send them by email), and I 
am quite ready to test what comes out of it.

WBR,
Vladimir
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