Date: Wed, 5 Feb 1992 12:34 EDT
From: Eric Ho <9041477 AT SSCvax DOT CIS DOT McMaster DOT CA>
Subject: Re: Bootstrapping djgpp
To: kroe AT sbcs DOT sunysb DOT edu
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu
Status: O

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