http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39280
Thomas Koenig changed:
What|Removed |Added
Status|NEW |RESOLVED
Resolution|---
--- Comment #6 from rguenther at suse dot de 2010-05-10 08:41 ---
Subject: Re: Optimizing integer power
On Sun, 9 May 2010, dfranke at gcc dot gnu dot org wrote:
> --- Comment #4 from dfranke at gcc dot gnu dot org 2010-05-09 21:08
> ---
> Situation still the same with gcc v
--- Comment #5 from dominiq at lps dot ens dot fr 2010-05-09 21:29 ---
I am not sure to understand the requested optimization. Is it only for the
special value j=-1 in j**i?
Note that for this situation I hate to rely on the compiler and I use a
"flipper", i.e., I replace
do i=1,10
--- Comment #4 from dfranke at gcc dot gnu dot org 2010-05-09 21:08 ---
Situation still the same with gcc version 4.6.0 20100509 (experimental) (GCC).
(In reply to comment #1)
> ... this asks for a POW_EXPR middle-end tree I guess. Or you can use
> builtins.c:expand_powi* do generate a
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fxcoudert at gcc dot gnu dot org changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Last recon
--- Comment #3 from rguenther at suse dot de 2009-02-24 12:14 ---
Subject: Re: Optimizing integer power
On Tue, 24 Feb 2009, burnus at gcc dot gnu dot org wrote:
> --- Comment #2 from burnus at gcc dot gnu dot org 2009-02-24 12:00
> ---
> > ... this asks for a POW_EXPR middl
--- Comment #2 from burnus at gcc dot gnu dot org 2009-02-24 12:00 ---
> ... this asks for a POW_EXPR middle-end tree I guess.
I think that would be useful. See also middle-end PR 32503.
> Or you can use builtins.c:expand_powi* do generate an expanded power series.
That won't work for (
--- Comment #1 from rguenth at gcc dot gnu dot org 2009-02-24 10:10 ---
... this asks for a POW_EXPR middle-end tree I guess. Or you can use
builtins.c:expand_powi* do generate an expanded power series.
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rguenth at gcc dot gnu dot org changed:
What|Removed
