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Diffstat (limited to 'lib/gcc/arm-none-eabi/13.2.1/plugin/include/tree-scalar-evolution.h')
-rw-r--r-- | lib/gcc/arm-none-eabi/13.2.1/plugin/include/tree-scalar-evolution.h | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/lib/gcc/arm-none-eabi/13.2.1/plugin/include/tree-scalar-evolution.h b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/tree-scalar-evolution.h new file mode 100644 index 0000000..c58a8a1 --- /dev/null +++ b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/tree-scalar-evolution.h @@ -0,0 +1,74 @@ +/* Scalar evolution detector. + Copyright (C) 2003-2023 Free Software Foundation, Inc. + Contributed by Sebastian Pop <s.pop@laposte.net> + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +You should have received a copy of the GNU General Public License +along with GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#ifndef GCC_TREE_SCALAR_EVOLUTION_H +#define GCC_TREE_SCALAR_EVOLUTION_H + +extern tree number_of_latch_executions (class loop *); +extern gcond *get_loop_exit_condition (const class loop *); + +extern void scev_initialize (void); +extern bool scev_initialized_p (void); +extern void scev_reset (void); +extern void scev_reset_htab (void); +extern void scev_finalize (void); +extern tree analyze_scalar_evolution (class loop *, tree); +extern tree instantiate_scev (edge, class loop *, tree); +extern tree resolve_mixers (class loop *, tree, bool *); +extern void gather_stats_on_scev_database (void); +extern bool final_value_replacement_loop (class loop *); +extern unsigned int scev_const_prop (void); +extern bool expression_expensive_p (tree); +extern bool simple_iv_with_niters (class loop *, class loop *, tree, + struct affine_iv *, tree *, bool); +extern bool simple_iv (class loop *, class loop *, tree, struct affine_iv *, + bool); +extern bool iv_can_overflow_p (class loop *, tree, tree, tree); +extern tree compute_overall_effect_of_inner_loop (class loop *, tree); + +/* Returns the basic block preceding LOOP, or the CFG entry block when + the loop is function's body. */ + +inline basic_block +block_before_loop (loop_p loop) +{ + edge preheader = loop_preheader_edge (loop); + return (preheader ? preheader->src : ENTRY_BLOCK_PTR_FOR_FN (cfun)); +} + +/* Analyze all the parameters of the chrec that were left under a + symbolic form. LOOP is the loop in which symbolic names have to + be analyzed and instantiated. */ + +inline tree +instantiate_parameters (class loop *loop, tree chrec) +{ + return instantiate_scev (loop_preheader_edge (loop), loop, chrec); +} + +/* Returns the loop of the polynomial chrec CHREC. */ + +inline class loop * +get_chrec_loop (const_tree chrec) +{ + return get_loop (cfun, CHREC_VARIABLE (chrec)); +} + +#endif /* GCC_TREE_SCALAR_EVOLUTION_H */ |