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Diffstat (limited to 'lib/gcc/arm-none-eabi/13.2.1/plugin/include/value-prof.h')
| -rw-r--r-- | lib/gcc/arm-none-eabi/13.2.1/plugin/include/value-prof.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/lib/gcc/arm-none-eabi/13.2.1/plugin/include/value-prof.h b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/value-prof.h new file mode 100644 index 0000000..0cfd5ad --- /dev/null +++ b/lib/gcc/arm-none-eabi/13.2.1/plugin/include/value-prof.h @@ -0,0 +1,120 @@ +/* Definitions for transformations based on profile information for values. + Copyright (C) 2003-2023 Free Software Foundation, Inc. + +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_VALUE_PROF_H +#define GCC_VALUE_PROF_H + +/* Supported histogram types. */ +enum hist_type +{ + HIST_TYPE_INTERVAL, /* Measures histogram of values inside a specified + interval. */ + HIST_TYPE_POW2, /* Histogram of power of 2 values. */ + HIST_TYPE_TOPN_VALUES, /* Tries to identify the N most common values. */ + HIST_TYPE_INDIR_CALL, /* Tries to identify the function that is (almost) + called in indirect call */ + HIST_TYPE_AVERAGE, /* Compute average value (sum of all values). */ + HIST_TYPE_IOR, /* Used to compute expected alignment. */ + HIST_TYPE_TIME_PROFILE, /* Used for time profile */ + HIST_TYPE_MAX +}; + +#define COUNTER_FOR_HIST_TYPE(TYPE) ((int) (TYPE) + GCOV_FIRST_VALUE_COUNTER) +#define HIST_TYPE_FOR_COUNTER(COUNTER) \ + ((enum hist_type) ((COUNTER) - GCOV_FIRST_VALUE_COUNTER)) + + +/* The value to measure. */ +struct histogram_value_t +{ + struct + { + tree value; /* The value to profile. */ + gimple *stmt; /* Insn containing the value. */ + gcov_type *counters; /* Pointer to first counter. */ + struct histogram_value_t *next; /* Linked list pointer. */ + } hvalue; + enum hist_type type; /* Type of information to measure. */ + unsigned n_counters; /* Number of required counters. */ + struct function *fun; + union + { + struct + { + int int_start; /* First value in interval. */ + unsigned int steps; /* Number of values in it. */ + } intvl; /* Interval histogram data. */ + } hdata; /* Profiled information specific data. */ +}; + +typedef struct histogram_value_t *histogram_value; +typedef const struct histogram_value_t *const_histogram_value; + + +typedef vec<histogram_value> histogram_values; + +extern void gimple_find_values_to_profile (histogram_values *); +extern bool gimple_value_profile_transformations (void); + +histogram_value gimple_alloc_histogram_value (struct function *, enum hist_type, + gimple *stmt = NULL, + tree value = NULL_TREE); +histogram_value gimple_histogram_value (struct function *, gimple *); +histogram_value gimple_histogram_value_of_type (struct function *, gimple *, + enum hist_type); +void gimple_add_histogram_value (struct function *, gimple *, histogram_value); +void dump_histograms_for_stmt (struct function *, FILE *, gimple *); +void gimple_remove_histogram_value (struct function *, gimple *, histogram_value); +void gimple_remove_stmt_histograms (struct function *, gimple *); +void gimple_duplicate_stmt_histograms (struct function *, gimple *, + struct function *, gimple *); +void gimple_move_stmt_histograms (struct function *, gimple *, gimple *); +void verify_histograms (void); +void free_histograms (function *); +void stringop_block_profile (gimple *, unsigned int *, HOST_WIDE_INT *); +gcall *gimple_ic (gcall *, struct cgraph_node *, profile_probability); +bool get_nth_most_common_value (gimple *stmt, const char *counter_type, + histogram_value hist, gcov_type *value, + gcov_type *count, gcov_type *all, + unsigned n = 0); + +/* In tree-profile.cc. */ +extern void gimple_init_gcov_profiler (void); +extern void gimple_gen_edge_profiler (int, edge); +extern void gimple_gen_interval_profiler (histogram_value, unsigned); +extern void gimple_gen_pow2_profiler (histogram_value, unsigned); +extern void gimple_gen_topn_values_profiler (histogram_value, unsigned); +extern void gimple_gen_ic_profiler (histogram_value, unsigned); +extern void gimple_gen_ic_func_profiler (void); +extern void gimple_gen_time_profiler (unsigned); +extern void gimple_gen_average_profiler (histogram_value, unsigned); +extern void gimple_gen_ior_profiler (histogram_value, unsigned); +extern void stream_out_histogram_value (struct output_block *, histogram_value); +extern void stream_in_histogram_value (class lto_input_block *, gimple *); +extern struct cgraph_node* find_func_by_profile_id (int func_id); + + +/* In profile.cc. */ +extern void init_branch_prob (void); +extern void branch_prob (bool); +extern void read_thunk_profile (struct cgraph_node *); +extern void end_branch_prob (void); + +#endif /* GCC_VALUE_PROF_H */ + |