Mail Archives: djgpp/1992/02/05/13:30:04
From: IN%"kroe AT sbcs DOT sunysb DOT edu" "KiYun Roe" 4-FEB-1992 22:33:17.10
To: DJ Delorie <dj AT ctron DOT com>
CC: djgpp AT sun DOT soe DOT clarkson DOT edu
Subj: RE: Bootstrapping djgpp
> ... and the compiler
> was reconfigured to produce a.out format and recompiled with -O.
That's too bad. :-) My experience is that -O will often generate
slower code. Either the GNU compiler has a hard time dealing with the
386/486 architecture (the small number of registers perhaps) or the
machine-dependent description of the 386/486 hasn't been done carefully
enough.
---
According to some benchmarks I did to djgpp, '-O' is indeed generate
faster code???
Cheers,
Eric
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