https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67326
--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> --- On Mon, 16 Nov 2015, jakub at gcc dot gnu.org wrote: > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67326 > > Jakub Jelinek <jakub at gcc dot gnu.org> changed: > > What |Removed |Added > ---------------------------------------------------------------------------- > CC| |jakub at gcc dot gnu.org > > --- Comment #3 from Jakub Jelinek <jakub at gcc dot gnu.org> --- > Yeah, we could perhaps look at the other DRs and figure out that because v3[i] > has the same index as v2[i] or v1[i], those are accessed unconditionally and > v3 > has at least as many elements as v1 or v2, v3[i] will not trap if v2[i] will > not. That all to avoid relying on SCEV and niter analysis? Ok, I can see that it might catch some more cases that way.
