https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
amker at gcc dot gnu.org changed:
What|Removed |Added
Status|NEW |RESOLVED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #8 from amker at gcc dot gnu.org ---
Author: amker
Date: Thu Jun 29 10:41:28 2017
New Revision: 249778
URL: https://gcc.gnu.org/viewcvs?rev=249778=gcc=rev
Log:
PR tree-optimization/81196
* tree-ssa-loop-niter.c
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #7 from Marc Glisse ---
(In reply to amker from comment #6)
> But below is necessary, right?
>
> /* { dg-require-effective-target vect_perm_short } */
Yes. Cool, I didn't remember we had exactly the right test :-)
Or you could
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #6 from amker at gcc dot gnu.org ---
(In reply to Marc Glisse from comment #5)
> (In reply to amker from comment #4)
> > Hmm, the function can only be vectorized with "-march=skylake"?
>
> Er, it also vectorizes without any -march on
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #5 from Marc Glisse ---
(In reply to amker from comment #4)
> Hmm, the function can only be vectorized with "-march=skylake"?
Er, it also vectorizes without any -march on x86_64 (with shorter vectors).
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #4 from amker at gcc dot gnu.org ---
Hmm, the function can only be vectorized with "-march=skylake"? So what
requirement is needed to add a test case for this?
Thanks.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #3 from amker at gcc dot gnu.org ---
(In reply to Richard Biener from comment #1)
> Probably some more elaborate handling in number_of_iterations_cond is
> required:
>
> /* We can handle the case when neither of the sides of the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
--- Comment #2 from amker at gcc dot gnu.org ---
(In reply to Richard Biener from comment #1)
> Probably some more elaborate handling in number_of_iterations_cond is
> required:
>
> /* We can handle the case when neither of the sides of the
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81196
Richard Biener changed:
What|Removed |Added
Status|UNCONFIRMED |NEW
Last reconfirmed|
