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/* Profile counter container type.
Copyright (C) 2017 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/>. */
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "profile-count.h"
#include "options.h"
#include "tree.h"
#include "basic-block.h"
#include "cfg.h"
#include "function.h"
#include "gimple.h"
#include "data-streamer.h"
#include "cgraph.h"
/* Dump THIS to F. */
void
profile_count::dump (FILE *f) const
{
if (!initialized_p ())
fprintf (f, "uninitialized");
else
{
fprintf (f, "%" PRId64, m_val);
if (m_quality == profile_adjusted)
fprintf (f, " (adjusted)");
else if (m_quality == profile_afdo)
fprintf (f, " (auto FDO)");
else if (m_quality == profile_guessed)
fprintf (f, " (guessed)");
}
}
/* Dump THIS to stderr. */
void
profile_count::debug () const
{
dump (stderr);
fprintf (stderr, "\n");
}
/* Return true if THIS differs from OTHER; tolerate small diferences. */
bool
profile_count::differs_from_p (profile_count other) const
{
if (!initialized_p () || !other.initialized_p ())
return false;
if ((uint64_t)m_val - (uint64_t)other.m_val < 100
|| (uint64_t)other.m_val - (uint64_t)m_val < 100)
return false;
if (!other.m_val)
return true;
int64_t ratio = (int64_t)m_val * 100 / other.m_val;
return ratio < 99 || ratio > 101;
}
/* Stream THIS from IB. */
profile_count
profile_count::stream_in (struct lto_input_block *ib)
{
profile_count ret;
ret.m_val = streamer_read_gcov_count (ib);
ret.m_quality = (profile_quality) streamer_read_uhwi (ib);
return ret;
}
/* Stream THIS to OB. */
void
profile_count::stream_out (struct output_block *ob)
{
streamer_write_gcov_count (ob, m_val);
streamer_write_uhwi (ob, m_quality);
}
/* Stream THIS to OB. */
void
profile_count::stream_out (struct lto_output_stream *ob)
{
streamer_write_gcov_count_stream (ob, m_val);
streamer_write_uhwi_stream (ob, m_quality);
}
/* Dump THIS to F. */
void
profile_probability::dump (FILE *f) const
{
if (!initialized_p ())
fprintf (f, "uninitialized");
else
{
/* Make difference between 0.00 as a roundoff error and actual 0.
Similarly for 1. */
if (m_val == 0)
fprintf (f, "never");
else if (m_val == max_probability)
fprintf (f, "always");
else
fprintf (f, "%3.1f%%", (double)m_val * 100 / max_probability);
if (m_quality == profile_adjusted)
fprintf (f, " (adjusted)");
else if (m_quality == profile_afdo)
fprintf (f, " (auto FDO)");
else if (m_quality == profile_guessed)
fprintf (f, " (guessed)");
}
}
/* Dump THIS to stderr. */
void
profile_probability::debug () const
{
dump (stderr);
fprintf (stderr, "\n");
}
/* Return true if THIS differs from OTHER; tolerate small diferences. */
bool
profile_probability::differs_from_p (profile_probability other) const
{
if (!initialized_p () || !other.initialized_p ())
return false;
if ((uint64_t)m_val - (uint64_t)other.m_val < 10
|| (uint64_t)other.m_val - (uint64_t)m_val < 10)
return false;
if (!other.m_val)
return true;
int64_t ratio = m_val * 100 / other.m_val;
return ratio < 99 || ratio > 101;
}
/* Return true if THIS differs significantly from OTHER. */
bool
profile_probability::differs_lot_from_p (profile_probability other) const
{
if (!initialized_p () || !other.initialized_p ())
return false;
uint32_t d = m_val > other.m_val ? m_val - other.m_val : other.m_val - m_val;
return d > max_probability / 2;
}
/* Stream THIS from IB. */
profile_probability
profile_probability::stream_in (struct lto_input_block *ib)
{
profile_probability ret;
ret.m_val = streamer_read_uhwi (ib);
ret.m_quality = (profile_quality) streamer_read_uhwi (ib);
return ret;
}
/* Stream THIS to OB. */
void
profile_probability::stream_out (struct output_block *ob)
{
streamer_write_uhwi (ob, m_val);
streamer_write_uhwi (ob, m_quality);
}
/* Stream THIS to OB. */
void
profile_probability::stream_out (struct lto_output_stream *ob)
{
streamer_write_uhwi_stream (ob, m_val);
streamer_write_uhwi_stream (ob, m_quality);
}
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