X-POP3-Rcpt: mlehmann AT universe DOT sgh-net DOT de
Message-ID: <34A72B10.115C4620@mpegtv.com>
28 Dec 1997 20:46:08 -0800
From: Tristan Savatier <tristan AT mpegtv DOT com>
Organization: MpegTV, http://www.mpegtv.com
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To: beastium-list AT Desk DOT nl
Subject: new pgcc is slower, why ?
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Until now I was using an old pgcc snapshot (970117), and today
I got the latest pgcc [pgcc-2.91.02 971216 (gcc-2.8.0)].

For some reason, when I compile my code with the new pgcc,
it is slower (about 3%) than what I get with my old snapshot.

I use the following options in both cases:

-mpentium -O6 -g -frisc -fopt-reg-use -floop-after-global -fall-mem-givs
-fpeep-spills -fdo-offload -frecombine -frisc-mem-dest -fswap-for-agi
-fschedule-stack-reg-insns -fsoftware-pipe -freg-reg-copy-opt

And I did the tests with a Pentium 133.

Is there any reason for the new pgcc to be slower with those
options ?

Any suggestion ?

-- 
Regards, -- Tristan Savatier (President, MpegTV LLC)

MpegTV:   http://www.mpegtv.com