------- Comment #27 from gdr at integrable-solutions dot net 2010-02-18 04:59
-------
Subject: Re: mixed complex<T> multiplication horribly
inefficient
On Wed, Feb 17, 2010 at 3:24 PM, paolo dot carlini at oracle dot com
<gcc-bugzi...@gcc.gnu.org> wrote:
> ------- Comment #2 from paolo dot carlini at oracle dot com 2010-02-17 21:24
> -------
> I don't see why you want to deal with special cases in the library instead of
> the optimizers: indeed, your *very* analysis shows that the missed
> optimization
> is happening in tree-complex.c and improving it would benefit *many* more uses
> outside the library. Actually, I'm pretty sure we rejected already proposals
> to
> change <complex> to deal more explicitly with special cases...
>
> Anyway, Gaby, can you please comment on this issue?
I agree with your comments. From my point of view, the fix should
be in the compiler.
PS: I was away from mail for a good part of the day. I'm catching up.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43108
