https://gcc.gnu.org/bugzilla/show_bug.cgi?id=52252
--- Comment #6 from Kirill Yukhin <kyukhin at gcc dot gnu.org> --- Author: kyukhin Date: Wed Jun 11 08:37:53 2014 New Revision: 211439 URL: http://gcc.gnu.org/viewcvs?rev=211439&root=gcc&view=rev Log: gcc/ * tree-vect-data-refs.c (vect_grouped_store_supported): New check for stores group of length 3. (vect_permute_store_chain): New permutations for stores group of length 3. * tree-vect-stmts.c (vect_model_store_cost): Change cost of vec_perm_shuffle for the new permutations. gcc/testsuite/ PR tree-optimization/52252 * gcc.dg/vect/pr52252-st.c: Test on stores group of size 3. Added: trunk/gcc/testsuite/gcc.dg/vect/pr52252-st.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vect-data-refs.c trunk/gcc/tree-vect-stmts.c