g++ optimization issue??

[ColinLaney]

I am aware of fp issues. I just don't understand why the compiler
generates code that is not.

On Fri, 2004-12-17 at 12:27 +0000, Dave Korn wrote:
> > -----Original Message-----
> > From: gcc-owner On Behalf Of ColinLaney
> > Sent: 17 December 2004 12:13
> 
> > I'm sorry if this has come up before and/or is well known or 
> > obvious. If so I would appreciated to be pointed in the right 
> > direction.
> > 
> > When compiled with "-O6" 
> 
>   You do understand that there aren't any optimisation levels > 3, don't you?
> 
> > the program below produces the following output:
> > 203744051  0.440158
> > 203744051  0.633306
> > 203744051  0.633306
> > 203744051  0.440158
> > 
> > 
> > I've added some comments on what I think went wrong. 
> 
>   Have you read 'What every computer scientist should know about floating
> point'?
> 
> http://tinyurl.com/4sw7n
> 
> 
>     cheers, 
>       DaveK