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/* Optimization information.
Copyright (C) 2018-2020 Free Software Foundation, Inc.
Contributed by David Malcolm <dmalcolm@redhat.com>.
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 "backend.h"
#include "tree.h"
#include "gimple.h"
#include "optinfo.h"
#include "optinfo-emit-json.h"
#include "dump-context.h"
#include "pretty-print.h"
#include "gimple-pretty-print.h"
#include "cgraph.h"
#include "selftest.h"
/* optinfo_item's ctor. Takes ownership of TEXT. */
optinfo_item::optinfo_item (enum optinfo_item_kind kind, location_t location,
char *text)
: m_kind (kind), m_location (location), m_text (text)
{
}
/* optinfo_item's dtor. */
optinfo_item::~optinfo_item ()
{
free (m_text);
}
/* Get a string from KIND. */
const char *
optinfo_kind_to_string (enum optinfo_kind kind)
{
switch (kind)
{
default:
gcc_unreachable ();
case OPTINFO_KIND_SUCCESS:
return "success";
case OPTINFO_KIND_FAILURE:
return "failure";
case OPTINFO_KIND_NOTE:
return "note";
case OPTINFO_KIND_SCOPE:
return "scope";
}
}
/* optinfo's dtor. */
optinfo::~optinfo ()
{
/* Cleanup. */
unsigned i;
optinfo_item *item;
FOR_EACH_VEC_ELT (m_items, i, item)
delete item;
}
/* Add ITEM to this optinfo. */
void
optinfo::add_item (optinfo_item *item)
{
gcc_assert (item);
m_items.safe_push (item);
}
/* Get MSG_* flags corresponding to KIND. */
static dump_flags_t
optinfo_kind_to_dump_flag (enum optinfo_kind kind)
{
switch (kind)
{
default:
gcc_unreachable ();
case OPTINFO_KIND_SUCCESS:
return MSG_OPTIMIZED_LOCATIONS;
case OPTINFO_KIND_FAILURE:
return MSG_MISSED_OPTIMIZATION;
case OPTINFO_KIND_NOTE:
case OPTINFO_KIND_SCOPE:
return MSG_NOTE;
}
}
/* Re-emit this optinfo, both to the "non-immediate" destinations,
*and* to the "immediate" destinations. */
void
optinfo::emit_for_opt_problem () const
{
dump_flags_t dump_kind = optinfo_kind_to_dump_flag (get_kind ());
dump_kind |= MSG_PRIORITY_REEMITTED;
/* Re-emit to "immediate" destinations, without creating a new optinfo. */
dump_context::get ().dump_loc_immediate (dump_kind, get_user_location ());
unsigned i;
optinfo_item *item;
FOR_EACH_VEC_ELT (m_items, i, item)
dump_context::get ().emit_item (item, dump_kind);
/* Re-emit to "non-immediate" destinations. */
dump_context::get ().emit_optinfo (this);
}
/* Update the optinfo's kind based on DUMP_KIND. */
void
optinfo::handle_dump_file_kind (dump_flags_t dump_kind)
{
/* Any optinfo for a "scope" should have been emitted separately. */
gcc_assert (m_kind != OPTINFO_KIND_SCOPE);
if (dump_kind & MSG_OPTIMIZED_LOCATIONS)
m_kind = OPTINFO_KIND_SUCCESS;
else if (dump_kind & MSG_MISSED_OPTIMIZATION)
m_kind = OPTINFO_KIND_FAILURE;
else if (dump_kind & MSG_NOTE)
m_kind = OPTINFO_KIND_NOTE;
}
/* Return true if any of the active optinfo destinations make use
of inlining information.
(if true, then the information is preserved). */
bool optinfo_wants_inlining_info_p ()
{
return dump_context::get ().optimization_records_enabled_p ();
}
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