https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69868
--- Comment #4 from Bill Schmidt <wschmidt at gcc dot gnu.org> --- Author: wschmidt Date: Fri Mar 4 03:13:30 2016 New Revision: 233957 URL: https://gcc.gnu.org/viewcvs?rev=233957&root=gcc&view=rev Log: 2016-03-03 Bill Schmidt <wschm...@linux.vnet.ibm.com> PR target/69868 + swap optimization backports * config/rs6000/rs6000.c (class swap_web_entry): Enlarge special-handling field. (enum special_handling_values): Add four new values. (const_load_sequence_p): New function. (load_comp_mask_p): Likewise. (v2df_reduction_p): Likewise. (rtx_is_swappable_p): Add handling for XXPERMDI and reductions. (insn_is_swappable_p): Add handling for CONCAT, reductions, and VPERM. (adjust_xxpermdi): New function. (adjust_concat): Likewise. (find_swapped_load_and_const_vector): Likewise. (replace_const_vector_in_load): Likewise. (adjust_vperm): Likewise. (adjust_vperm_comp): Likewise. (handle_special_swappables): Add support for XXPERMDI, CONCAT, and VPERM. (replace_swap_with_copy): Permit replacements of VNOR by copies as well. (dump_swap_insn_table): Add handling for XXPERMDI, CONCAT, and VPERM. Modified: branches/ibm/gcc-5-branch/gcc/ChangeLog.ibm branches/ibm/gcc-5-branch/gcc/config/rs6000/rs6000.c
