Re: [PATCH, i386]: Implement ldexp{,f,l} functions as built-in x87 intrinsics

[Uros Bizjak <ubizjak at gmail dot com>]

Hello Kaveh!
> On Fri, 11 Feb 2005, Richard Henderson wrote:
>
> > On Fri, Feb 11, 2005 at 04:57:23PM +0100, Uros Bizjak wrote:
> > > BTW: It looks that scalbn{,f,l} functions are the same as ldexp{,f,l}.
> > > Could these builtins be implemented with the same patterns as
> > > corresponding ldexp{,f,l} patterns?
> >
> > For -ffast-math, yes.
> > r~
>
> Hi Uros,
>
> By coincidence your ldexp patch was from exactly two years ago. :-)
>
> I don't think you ever did the scalbn* refinement, and I think you could
> do scalbln* as well.  Was there a technical reason you didn't proceed or
> you just forgot?  I have a patch to do it, which I'm queuing until after
> Sandra's jumbo patch is installed.  Please let me know.
>   
The only reason is that I have totally forgot on this...

BTW: Looking at ChangeLog-2004, I see that you are the author of 
(long)round -> lround transformation in convert.c, convert_to_integer() 
function. Following your lead, I have added other conversions, but my 
last patch to convert (int)logb -> ilogb was rejected by middle-end 
maintainers on the ground that these transformations belong to 
fold-const.c. I was trying to move these transformations to their better 
place but failed miserably... do you have any ideas on how to move this 
thing?

Thanks,
Uros.