gcc/ChangeLog:
2019-10-29 Andre Vieira <andre.simoesdiasvieira@arm.com>
PR 88915
* tree-ssa-loop-niter.h (simplify_replace_tree): Change declaration.
* tree-ssa-loop-niter.c (simplify_replace_tree): Add context parameter
and make the valueize function pointer also take a void pointer.
* gcc/tree-ssa-sccvn.c (vn_valueize_wrapper): New function to wrap
around vn_valueize, to call it without a context.
(process_bb): Use vn_valueize_wrapper instead of vn_valueize.
* tree-vect-loop.c (_loop_vec_info): Initialize epilogue_vinfos.
(~_loop_vec_info): Release epilogue_vinfos.
(vect_analyze_loop_costing): Use knowledge of main VF to estimate
number of iterations of epilogue.
(vect_analyze_loop_2): Adapt to analyse main loop for all supported
vector sizes when vect-epilogues-nomask=1. Also keep track of lowest
versioning threshold needed for main loop.
(vect_analyze_loop): Likewise.
(find_in_mapping): New helper function.
(update_epilogue_loop_vinfo): New function.
(vect_transform_loop): When vectorizing epilogues re-use analysis done
on main loop and call update_epilogue_loop_vinfo to update it.
* tree-vect-loop-manip.c (vect_update_inits_of_drs): No longer insert
stmts on loop preheader edge.
(vect_do_peeling): Enable skip-vectors when doing loop versioning if
we decided to vectorize epilogues. Update epilogues NITERS and
construct ADVANCE to update epilogues data references where needed.
* tree-vectorizer.h (_loop_vec_info): Add epilogue_vinfos.
(vect_do_peeling, vect_update_inits_of_drs,
determine_peel_for_niter, vect_analyze_loop): Add or update
declarations.
* tree-vectorizer.c (try_vectorize_loop_1): Make sure to use already
created loop_vec_info's for epilogues when available. Otherwise analyse
epilogue separately.
From-SVN: r277569
