Mercurial > hg > CbC > CbC_gcc
annotate gcc/value-prof.h @ 66:b362627d71ba
bug-fix: modify tail-call-optimization enforcing rules. (calls.c.)
| author | Ryoma SHINYA <shinya@firefly.cr.ie.u-ryukyu.ac.jp> |
|---|---|
| date | Tue, 14 Dec 2010 03:58:33 +0900 |
| parents | 77e2b8dfacca |
| children | f6334be47118 |
| rev | line source |
|---|---|
| 0 | 1 /* Definitions for transformations based on profile information for values. |
| 2 Copyright (C) 2003, 2004, 2005, 2007, 2008 Free Software Foundation, Inc. | |
| 3 | |
| 4 This file is part of GCC. | |
| 5 | |
| 6 GCC is free software; you can redistribute it and/or modify it under | |
| 7 the terms of the GNU General Public License as published by the Free | |
| 8 Software Foundation; either version 3, or (at your option) any later | |
| 9 version. | |
| 10 | |
| 11 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 12 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 13 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 14 for more details. | |
| 15 | |
| 16 You should have received a copy of the GNU General Public License | |
| 17 along with GCC; see the file COPYING3. If not see | |
| 18 <http://www.gnu.org/licenses/>. */ | |
| 19 | |
| 20 #ifndef GCC_VALUE_PROF_H | |
| 21 #define GCC_VALUE_PROF_H | |
| 22 | |
| 23 /* Supported histogram types. */ | |
| 24 enum hist_type | |
| 25 { | |
| 26 HIST_TYPE_INTERVAL, /* Measures histogram of values inside a specified | |
| 27 interval. */ | |
| 28 HIST_TYPE_POW2, /* Histogram of power of 2 values. */ | |
| 29 HIST_TYPE_SINGLE_VALUE, /* Tries to identify the value that is (almost) | |
| 30 always constant. */ | |
| 31 HIST_TYPE_CONST_DELTA, /* Tries to identify the (almost) always constant | |
| 32 difference between two evaluations of a value. */ | |
|
55
77e2b8dfacca
update it from 4.4.3 to 4.5.0
ryoma <e075725@ie.u-ryukyu.ac.jp>
parents:
0
diff
changeset
|
33 HIST_TYPE_INDIR_CALL, /* Tries to identify the function that is (almost) |
| 0 | 34 called in indirect call */ |
| 35 HIST_TYPE_AVERAGE, /* Compute average value (sum of all values). */ | |
| 36 HIST_TYPE_IOR /* Used to compute expected alignment. */ | |
| 37 }; | |
| 38 | |
| 39 #define COUNTER_FOR_HIST_TYPE(TYPE) ((int) (TYPE) + GCOV_FIRST_VALUE_COUNTER) | |
| 40 #define HIST_TYPE_FOR_COUNTER(COUNTER) \ | |
| 41 ((enum hist_type) ((COUNTER) - GCOV_FIRST_VALUE_COUNTER)) | |
| 42 | |
| 43 /* The value to measure. */ | |
| 44 struct histogram_value_t | |
| 45 { | |
| 46 struct | |
| 47 { | |
| 48 tree value; /* The value to profile. */ | |
| 49 gimple stmt; /* Insn containing the value. */ | |
| 50 gcov_type *counters; /* Pointer to first counter. */ | |
| 51 struct histogram_value_t *next; /* Linked list pointer. */ | |
| 52 } hvalue; | |
| 53 enum hist_type type; /* Type of information to measure. */ | |
| 54 unsigned n_counters; /* Number of required counters. */ | |
| 55 union | |
| 56 { | |
| 57 struct | |
| 58 { | |
| 59 int int_start; /* First value in interval. */ | |
| 60 unsigned int steps; /* Number of values in it. */ | |
| 61 } intvl; /* Interval histogram data. */ | |
| 62 } hdata; /* Profiled information specific data. */ | |
| 63 }; | |
| 64 | |
| 65 typedef struct histogram_value_t *histogram_value; | |
| 66 typedef const struct histogram_value_t *const_histogram_value; | |
| 67 | |
| 68 DEF_VEC_P(histogram_value); | |
| 69 DEF_VEC_ALLOC_P(histogram_value,heap); | |
| 70 | |
| 71 typedef VEC(histogram_value,heap) *histogram_values; | |
| 72 | |
| 73 /* Hooks registration. */ | |
| 74 extern void gimple_register_value_prof_hooks (void); | |
| 75 | |
| 76 /* IR-independent entry points. */ | |
| 77 extern void find_values_to_profile (histogram_values *); | |
| 78 extern bool value_profile_transformations (void); | |
| 79 | |
| 80 /* External declarations for edge-based profiling. */ | |
| 81 struct profile_hooks { | |
| 82 | |
| 83 /* Insert code to initialize edge profiler. */ | |
| 84 void (*init_edge_profiler) (void); | |
| 85 | |
| 86 /* Insert code to increment an edge count. */ | |
| 87 void (*gen_edge_profiler) (int, edge); | |
| 88 | |
| 89 /* Insert code to increment the interval histogram counter. */ | |
| 90 void (*gen_interval_profiler) (histogram_value, unsigned, unsigned); | |
| 91 | |
| 92 /* Insert code to increment the power of two histogram counter. */ | |
| 93 void (*gen_pow2_profiler) (histogram_value, unsigned, unsigned); | |
| 94 | |
| 95 /* Insert code to find the most common value. */ | |
| 96 void (*gen_one_value_profiler) (histogram_value, unsigned, unsigned); | |
| 97 | |
| 98 /* Insert code to find the most common value of a difference between two | |
| 99 evaluations of an expression. */ | |
| 100 void (*gen_const_delta_profiler) (histogram_value, unsigned, unsigned); | |
| 101 | |
| 102 /* Insert code to find the most common indirect call */ | |
| 103 void (*gen_ic_profiler) (histogram_value, unsigned, unsigned); | |
| 104 | |
| 105 /* Insert code to find the average value of an expression. */ | |
| 106 void (*gen_average_profiler) (histogram_value, unsigned, unsigned); | |
| 107 | |
| 108 /* Insert code to ior value of an expression. */ | |
| 109 void (*gen_ior_profiler) (histogram_value, unsigned, unsigned); | |
| 110 }; | |
| 111 | |
| 112 histogram_value gimple_histogram_value (struct function *, gimple); | |
| 113 histogram_value gimple_histogram_value_of_type (struct function *, gimple, | |
| 114 enum hist_type); | |
| 115 void gimple_add_histogram_value (struct function *, gimple, histogram_value); | |
| 116 void dump_histograms_for_stmt (struct function *, FILE *, gimple); | |
| 117 void gimple_remove_histogram_value (struct function *, gimple, histogram_value); | |
| 118 void gimple_remove_stmt_histograms (struct function *, gimple); | |
| 119 void gimple_duplicate_stmt_histograms (struct function *, gimple, | |
| 120 struct function *, gimple); | |
| 121 void gimple_move_stmt_histograms (struct function *, gimple, gimple); | |
| 122 void verify_histograms (void); | |
| 123 void free_histograms (void); | |
| 124 void stringop_block_profile (gimple, unsigned int *, HOST_WIDE_INT *); | |
| 125 | |
| 126 /* In profile.c. */ | |
| 127 extern void init_branch_prob (void); | |
| 128 extern void branch_prob (void); | |
| 129 extern void end_branch_prob (void); | |
| 130 extern void tree_register_profile_hooks (void); | |
| 131 | |
| 132 /* In tree-profile.c. */ | |
| 133 extern struct profile_hooks tree_profile_hooks; | |
| 134 | |
| 135 #endif /* GCC_VALUE_PROF_H */ | |
| 136 |