comp.lang.ada
 help / color / mirror / Atom feed
From: William Paul Berriss <strberis@reading.ac.uk>
Subject: gnat3.10 optimization O2 on win95 - problem
Date: 1997/11/06
Date: 1997-11-06T00:00:00+00:00	[thread overview]
Message-ID: <Pine.SOL.3.96.971106064850.15977A-100000@suma3.reading.ac.uk> (raw)


Hi

Just to sya that I have compiled a program that uses lots and lots
of for loops (nested too) and on gnat 3.07 with optimization
-O2 and-O3 on solaris unix and red hat linux it take about 50 seconds to
run.

BUT, on gnat3.10 on win95 with -O2 optimization it seems to take
forever, it just stops (well looks like it does, heaven knows
what it is doing) near the start.
BUT with no optimization on win95 gnat3.10 it runs just fine,
taking about a minute as per gnat3.07.

So I would suggest that the -O2 optimizer on gnat3.10 for Win95
is a bit faulty.
Have others noticed this? I see no mention on the newsgroup today.

Any advice? knowledge to share on this matter?

Thank in advance

Will Berriss
-----------



W P Berriss                 E-mail: W.P.Berriss@reading.ac.uk
Department of Engineering
The University of Reading
Whiteknights
Reading                     Tel:  0118 987 5123 
Berkshire                     (+44 118 987 5123 outside UK)
RG6 6AY    
England                     Fax:  0118 931 3327    

World Wide Web Home Page: 

http://www.elec.rdg.ac.uk/people/postgrads/will.html








             reply	other threads:[~1997-11-06  0:00 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1997-11-06  0:00 William Paul Berriss [this message]
1997-11-06  0:00 ` gnat3.10 optimization O2 on win95 - problem Robert Dewar
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox