http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57896
--- Comment #31 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Thu Feb 20 20:39:46 2014 New Revision: 207969 URL: http://gcc.gnu.org/viewcvs?rev=207969&root=gcc&view=rev Log: PR target/57896 * config/i386/i386.c (expand_vec_perm_interleave2): Don't call gen_reg_rtx if d->testing_p. (expand_vec_perm_pshufb2, expand_vec_perm_broadcast_1): Return early if d->testing_p and we will certainly return true. (expand_vec_perm_even_odd_1): Likewise. Don't call gen_reg_rtx if d->testing_p. Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c