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Date: Sun, 10 Sep 1995 16:29:54 +1000
From: Bruce Evans <bde@zeta.org.au>
Message-Id: <199509100629.QAA24436@godzilla.zeta.org.au>
To: rmallory@wiley.csusb.edu, roberto@keltia.freenix.fr
Subject: Re: sig 11
Cc: davidg@root.com, freebsd-current@freebsd.org
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>pps: I am also running (made world and XFree  with it) an gcc-i2.7.0
>   optimized libmsun.  no problems. I'll make other libraries and
>   post benchmarks later; if anyone is interested. ??are they??

I'm interested in very carefully done benchmarks, ones that can be
repeated...

gcc-2.7.0 -O2 usually produces worse code than gcc-2.6.3 -O2 due to a
worse default for -fforce-mem flag.  Constants get loaded into registers
more.  On the i386, this usually wastes a little time to load the
constant and may waste a lot of time when it starves the register
allocator.

Bruce