On 12/15/2011 10:22 AM, Michael Zolotukhin wrote: >> This is vect_perm. Why are you inventing a new one? > As far as I understand, vect_perm is true if target supports at least > some vector-permutation, while vect_any_perm is intended to be true if > arbitrary permutation is supported (like in avx). It was introduced > because vectorization began to occur on a previously unvectorizable > loop in slp-perm-9.c when -mavx2 is specified. I think that's because > broader range of permutations is available in this case, and that's > why I introduced this checker.
Well, ppc and spe support arbitrary permutation, which are the only other two listed with vec_perm. As for i386, we support arbitrary permutation beginning with ssse3. So, don't add vect_any_perm. Use vec_perm and figure out what's really wrong with slp-perm-9. r~
