Re: GIV optimizations

[Canqun Yang <canqun at nudt dot edu dot cn>]

Zdenek Dvorak <rakdver@atrey.karlin.mff.cuni.cz>:

> Hello,
>
> > Giv optimizations are just features which not
> > implemented yet in the new loop unroller, so I 
think
> > put it in bugzilla is not appropriate.
>
> it most definitely is appropriate.  This is a 
performance
> regression.  Even if it would not be, feature 
requests
> can be put to Bugzilla.
>
Ok, thanks.

> The best of course would be if you could create a 
small testcase
> demonstrating what you would like the compiler to 
achieve.
>
> Zdenek
> 

I attached a testcase with the two assembly code 
versions, one for which has address giv splitting in 
the loop unroller, the 
other not.


Canqun Yang
Creative Compiler Research Group.
National University of Defense Technology, China.

Attachment: giv.f90
Description: Binary data

Attachment: giv_no_opt.s
Description: Binary data

Attachment: giv_opt.s
Description: Binary data