http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49411
--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-06-15 15:57:29 UTC --- FYI, a newer patch has been posted: http://gcc.gnu.org/ml/gcc-patches/2011-06/msg01139.html I don't think it is necessary to test the op of vpermil again if it is CONST_INT, we know it is not 0..3 because otherwise insn_data[icode].operand[i + 1].predicate (op, mode) would be true. _mm_com* don't seem to have an constant argument, just two vector arguments, so there is nothing to check. The immediate comes directly from the table and so is known to be ok.
