Message-ID:	<00a901bda7b0$31be9c20$ea023ace@alpha>
From:	"Brian Bacon" <kyberteknik AT geocities DOT com>
To:	<djgpp AT delorie DOT com>
Subject:	Optimization Question
Date:	Sat, 4 Jul 1998 17:59:40 -0700
MIME-Version:	1.0

 Hello,
  I have a small problem.  I need to know how to tell gcc NOT to optimize a
certain section of code, it keeps doing it wrong!  I am using -O2, my
application is graphic-intensive, so I want to at least keep the -O2.  Is
there something I can put around my code to tell it to leave it the way it
should be?

The code looks something like this:

b=(a_computed_number);
f=b*c;

f always comes out wrong!  I looked at the .S file gcc produces (with the -S
option) and it looks like it isn't doing anything at all to f.  I just
copies something for one portion of memory to another (there isn't even any
multiplication!).

"All in all you were all just bricks in the wall" Pink Floyd - The Wall
----------------------------------------------------------------------------
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Brian Bacon  -  kyberteknik AT geocities DOT com
ICQ: 3218637
http://trr.home.ml.org/
GCS d- p- c++++ l- u e* m++(+++/---)@ s+/- n---@ h-- f+ g+ w++ t+ r x?

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