ac91af71c9
This patch makes the entry point to loop invariant motion public, so that it can be called after loop interchange when that pass has swapped loops. This avoids the non-LTO -Ofast run-time regressions of 410.bwaves and 503.bwaves_r (which are 19% and 15% faster than current master on an AMD zen2 machine) while not introducing a full LIM pass into the pass pipeline. The patch also adds a parameter which allows not to perform any store motion so that it is not done after an interchange. gcc/ChangeLog: 2020-11-12 Martin Jambor <mjambor@suse.cz> PR tree-optimization/94406 * tree-ssa-loop-im.c (tree_ssa_lim): Renamed to loop_invariant_motion_in_fun, added a parameter to control store motion. (pass_lim::execute): Adjust call to tree_ssa_lim, now loop_invariant_motion_in_fun. * tree-ssa-loop-manip.h (loop_invariant_motion_in_fun): Declare. * gimple-loop-interchange.cc (pass_linterchange::execute): Call loop_invariant_motion_in_fun if any interchange has been done.
62 lines
2.4 KiB
C++
62 lines
2.4 KiB
C++
/* Header file for High-level loop manipulation functions.
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Copyright (C) 2013-2020 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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#ifndef GCC_TREE_SSA_LOOP_MANIP_H
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#define GCC_TREE_SSA_LOOP_MANIP_H
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typedef void (*transform_callback)(class loop *, void *);
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extern void create_iv (tree, tree, tree, class loop *, gimple_stmt_iterator *,
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bool, tree *, tree *);
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extern void rewrite_into_loop_closed_ssa_1 (bitmap, unsigned, int,
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class loop *);
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extern void rewrite_into_loop_closed_ssa (bitmap, unsigned);
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extern void rewrite_virtuals_into_loop_closed_ssa (class loop *);
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extern void verify_loop_closed_ssa (bool, class loop * = NULL);
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static inline void
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checking_verify_loop_closed_ssa (bool verify_ssa_p, class loop *loop = NULL)
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{
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if (flag_checking)
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verify_loop_closed_ssa (verify_ssa_p, loop);
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}
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extern basic_block split_loop_exit_edge (edge, bool = false);
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extern basic_block ip_end_pos (class loop *);
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extern basic_block ip_normal_pos (class loop *);
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extern void standard_iv_increment_position (class loop *,
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gimple_stmt_iterator *, bool *);
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extern bool gimple_duplicate_loop_to_header_edge (class loop *, edge,
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unsigned int, sbitmap,
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edge, vec<edge> *,
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int);
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extern bool can_unroll_loop_p (class loop *loop, unsigned factor,
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class tree_niter_desc *niter);
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extern gcov_type niter_for_unrolled_loop (class loop *, unsigned);
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extern void tree_transform_and_unroll_loop (class loop *, unsigned,
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edge, class tree_niter_desc *,
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transform_callback, void *);
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extern void tree_unroll_loop (class loop *, unsigned,
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edge, class tree_niter_desc *);
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extern tree canonicalize_loop_ivs (class loop *, tree *, bool);
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extern unsigned int loop_invariant_motion_in_fun (function *, bool);
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#endif /* GCC_TREE_SSA_LOOP_MANIP_H */
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