On Fri, 16 Mar 2018, Tom de Vries wrote:
> On 02/27/2018 01:42 PM, Richard Biener wrote:
> > Index: gcc/testsuite/gcc.dg/tree-ssa/pr84512.c
> > ===================================================================
> > --- gcc/testsuite/gcc.dg/tree-ssa/pr84512.c (nonexistent)
> > +++ gcc/testsuite/gcc.dg/tree-ssa/pr84512.c (working copy)
> > @@ -0,0 +1,15 @@
> > +/* { dg-do compile } */
> > +/* { dg-options "-O3 -fdump-tree-optimized" } */
> > +
> > +int foo()
> > +{
> > + int a[10];
> > + for(int i = 0; i < 10; ++i)
> > + a[i] = i*i;
> > + int res = 0;
> > + for(int i = 0; i < 10; ++i)
> > + res += a[i];
> > + return res;
> > +}
> > +
> > +/* { dg-final { scan-tree-dump "return 285;" "optimized" } } */
>
> This fails for nvptx, because it doesn't have the required vector operations.
> To fix the fail, I've added requiring effective target vect_int_mult.
On targets that do not vectorize you should see the scalar loops unrolled
instead. Or do you have only one loop vectorized? That's precisely
what the PR was about... which means it isn't fixed for nvptx :/
Richard.
> Thanks,
> - Tom
>
--
Richard Biener <rguent...@suse.de>
SUSE LINUX GmbH, GF: Felix Imendoerffer, Jane Smithard, Graham Norton, HRB
21284 (AG Nuernberg)
