From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/value-prof.h | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 gcc/value-prof.h (limited to 'gcc/value-prof.h') diff --git a/gcc/value-prof.h b/gcc/value-prof.h new file mode 100644 index 000000000..b7215b8be --- /dev/null +++ b/gcc/value-prof.h @@ -0,0 +1,111 @@ +/* Definitions for transformations based on profile information for values. + Copyright (C) 2003, 2004, 2005, 2007, 2008, 2010 + 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 +. */ + +#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_SINGLE_VALUE, /* Tries to identify the value that is (almost) + always constant. */ + HIST_TYPE_CONST_DELTA, /* Tries to identify the (almost) always constant + difference between two evaluations of a value. */ + 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. */ +}; + +#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. */ + 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; + +DEF_VEC_P(histogram_value); +DEF_VEC_ALLOC_P(histogram_value,heap); + +typedef VEC(histogram_value,heap) *histogram_values; + +extern void gimple_find_values_to_profile (histogram_values *); +extern bool gimple_value_profile_transformations (void); + +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 (void); +void stringop_block_profile (gimple, unsigned int *, HOST_WIDE_INT *); + +/* In tree-profile.c. */ +extern void gimple_init_edge_profiler (void); +extern void gimple_gen_edge_profiler (int, edge); +extern void gimple_gen_interval_profiler (histogram_value, unsigned, unsigned); +extern void gimple_gen_pow2_profiler (histogram_value, unsigned, unsigned); +extern void gimple_gen_one_value_profiler (histogram_value, unsigned, unsigned); +extern void gimple_gen_ic_profiler (histogram_value, unsigned, unsigned); +extern void gimple_gen_ic_func_profiler (void); +extern void gimple_gen_const_delta_profiler (histogram_value, + unsigned, unsigned); +extern void gimple_gen_average_profiler (histogram_value, unsigned, unsigned); +extern void gimple_gen_ior_profiler (histogram_value, unsigned, unsigned); + +/* In profile.c. */ +extern void init_branch_prob (void); +extern void branch_prob (void); +extern void end_branch_prob (void); + +#endif /* GCC_VALUE_PROF_H */ + -- cgit v1.2.3