diff options
Diffstat (limited to 'lib/gcc/arm-none-eabi/13.2.1/plugin/include/ipa-inline.h')
-rw-r--r-- | lib/gcc/arm-none-eabi/13.2.1/plugin/include/ipa-inline.h | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/lib/gcc/arm-none-eabi/13.2.1/plugin/include/ipa-inline.h b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/ipa-inline.h new file mode 100644 index 0000000..70de89a --- /dev/null +++ b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/ipa-inline.h @@ -0,0 +1,134 @@ +/* Inlining decision heuristics. + Copyright (C) 2003-2023 Free Software Foundation, Inc. + Contributed by Jan Hubicka + +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_IPA_INLINE_H +#define GCC_IPA_INLINE_H + +/* Data we cache about callgraph edges during inlining to avoid expensive + re-computations during the greedy algorithm. */ +class edge_growth_cache_entry +{ +public: + sreal time, nonspec_time; + int size; + ipa_hints hints; + + edge_growth_cache_entry() + : size (0), hints (0) {} + + edge_growth_cache_entry(int64_t time, int64_t nonspec_time, + int size, ipa_hints hints) + : time (time), nonspec_time (nonspec_time), size (size), + hints (hints) {} +}; + +extern fast_call_summary<edge_growth_cache_entry *, va_heap> *edge_growth_cache; + +/* In ipa-inline-analysis.cc */ +int estimate_size_after_inlining (struct cgraph_node *, struct cgraph_edge *); +int estimate_growth (struct cgraph_node *); +bool growth_positive_p (struct cgraph_node *, struct cgraph_edge *, int); +int do_estimate_edge_size (struct cgraph_edge *edge); +sreal do_estimate_edge_time (struct cgraph_edge *edge, sreal *nonspec_time = NULL); +ipa_hints do_estimate_edge_hints (struct cgraph_edge *edge); +void reset_node_cache (struct cgraph_node *node); +void initialize_growth_caches (); +void free_growth_caches (void); + +/* In ipa-inline.cc */ +unsigned int early_inliner (function *fun); +bool inline_account_function_p (struct cgraph_node *node); + + +/* In ipa-inline-transform.cc */ +bool inline_call (struct cgraph_edge *, bool, vec<cgraph_edge *> *, int *, bool, + bool *callee_removed = NULL); +unsigned int inline_transform (struct cgraph_node *); +void clone_inlined_nodes (struct cgraph_edge *e, bool, bool, int *); + +extern int ncalls_inlined; +extern int nfunctions_inlined; +extern function_summary <tree *> *ipa_saved_clone_sources; + +/* Return estimated size of the inline sequence of EDGE. */ + +inline int +estimate_edge_size (struct cgraph_edge *edge) +{ + edge_growth_cache_entry *entry; + if (edge_growth_cache == NULL + || (entry = edge_growth_cache->get (edge)) == NULL + || entry->size == 0) + return do_estimate_edge_size (edge); + return entry->size - (entry->size > 0); +} + +/* Return lower bound on estimated callee growth after inlining EDGE. */ + +inline int +estimate_min_edge_growth (struct cgraph_edge *edge) +{ + ipa_call_summary *s = ipa_call_summaries->get (edge); + struct cgraph_node *callee = edge->callee->ultimate_alias_target (); + return (ipa_fn_summaries->get (callee)->min_size - s->call_stmt_size); +} + +/* Return estimated callee growth after inlining EDGE. */ + +inline int +estimate_edge_growth (struct cgraph_edge *edge) +{ + ipa_call_summary *s = ipa_call_summaries->get (edge); + gcc_checking_assert (s->call_stmt_size || !edge->callee->analyzed); + return (estimate_edge_size (edge) - s->call_stmt_size); +} + +/* Return estimated callee runtime increase after inlining + EDGE. */ + +inline sreal +estimate_edge_time (struct cgraph_edge *edge, sreal *nonspec_time = NULL) +{ + edge_growth_cache_entry *entry; + if (edge_growth_cache == NULL + || (entry = edge_growth_cache->get (edge)) == NULL + || entry->time == 0) + return do_estimate_edge_time (edge, nonspec_time); + if (nonspec_time) + *nonspec_time = edge_growth_cache->get (edge)->nonspec_time; + return entry->time; +} + + +/* Return estimated callee runtime increase after inlining + EDGE. */ + +inline ipa_hints +estimate_edge_hints (struct cgraph_edge *edge) +{ + edge_growth_cache_entry *entry; + if (edge_growth_cache == NULL + || (entry = edge_growth_cache->get (edge)) == NULL + || entry->hints == 0) + return do_estimate_edge_hints (edge); + return entry->hints - 1; +} + +#endif /* GCC_IPA_INLINE_H */ |