https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68483
--- Comment #7 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Author: jakub Date: Tue Nov 24 10:45:52 2015 New Revision: 230797 URL: https://gcc.gnu.org/viewcvs?rev=230797&root=gcc&view=rev Log: PR target/68483 * tree-vect-generic.c (lower_vec_perm): If VEC_PERM_EXPR is valid vec_shr pattern, don't lower it even if can_vec_perm_p returns false. * optabs.c (shift_amt_for_vec_perm_mask): Return NULL_RTX whenever first is nelt or above. Don't mask expected with 2 * nelt - 1. * gcc.target/i386/pr68483-1.c: New test. * gcc.target/i386/pr68483-2.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/pr68483-1.c trunk/gcc/testsuite/gcc.target/i386/pr68483-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/optabs.c trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vect-generic.c
