From:	mdruiter AT cs DOT vu DOT nl (Ruiter de M)
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: [??] coaxing gcc into generating better code
Date:	3 Feb 1997 13:16:29 GMT
Organization:	Fac. Wiskunde & Informatica, VU, Amsterdam
Lines:	24
Message-ID:	<5d4ofd$hv8@star.cs.vu.nl>
References:	<5cicci$ljs AT news DOT service DOT uci DOT edu>
NNTP-Posting-Host:	sloep28.cs.vu.nl
To:	djgpp AT delorie DOT com
DJ-Gateway:	from newsgroup comp.os.msdos.djgpp

John Beppu (beppu AT rigel DOT oac DOT uci DOT edu) wrote:

[code + assembly output snipped]

:   /* How horrible the second assembly output is.  It's no good for
:      486 and terrible for P5.  (I don't know how P6 will feel about
:      it.)  The command line parameters I invoked gcc with were:
: 
:      -S			// assembly output
:      -O2		// optimizations
:      -fforce-addr	// put ptrs into registers?
:      -fomit-frame-pointer
: 			// uses esp for stackframe and frees ebp
: 
:   */ 

What you could try is to use the -m486 parameter, which will optimize
for 486's instead of 386's. There is NO way to get Pentium-optimizations
with your standard GCC.
-- 
Groeten, Michel.        http://www.cs.vu.nl/~mdruiter
 \----/==\----/
  \  /    \  /          "Life is cool.", Beavis.
   \/      \/

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