1b06fcb0c9
This fixes more memory leaks as discovered by building 521.wrf_r. 2021-02-03 Richard Biener <rguenther@suse.de> * lto-streamer.c (lto_get_section_name): Free temporary buffer. * tree-loop-distribution.c (loop_distribution::merge_dep_scc_partitions): Free edge data.
281 lines
8.2 KiB
C
281 lines
8.2 KiB
C
/* Miscellaneous utilities for GIMPLE streaming. Things that are used
|
|
in both input and output are here.
|
|
|
|
Copyright (C) 2009-2021 Free Software Foundation, Inc.
|
|
Contributed by Doug Kwan <dougkwan@google.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 "tree-streamer.h"
|
|
#include "cgraph.h"
|
|
#include "lto-streamer.h"
|
|
#include "toplev.h"
|
|
#include "lto-section-names.h"
|
|
|
|
/* Statistics gathered during LTO, WPA and LTRANS. */
|
|
struct lto_stats_d lto_stats;
|
|
|
|
const char *section_name_prefix = LTO_SECTION_NAME_PREFIX;
|
|
/* Set when streaming LTO for offloading compiler. */
|
|
bool lto_stream_offload_p;
|
|
|
|
FILE *streamer_dump_file;
|
|
|
|
/* Return a string representing LTO tag TAG. */
|
|
|
|
const char *
|
|
lto_tag_name (enum LTO_tags tag)
|
|
{
|
|
if (lto_tag_is_tree_code_p (tag))
|
|
{
|
|
/* For tags representing tree nodes, return the name of the
|
|
associated tree code. */
|
|
return get_tree_code_name (lto_tag_to_tree_code (tag));
|
|
}
|
|
|
|
if (lto_tag_is_gimple_code_p (tag))
|
|
{
|
|
/* For tags representing gimple statements, return the name of
|
|
the associated gimple code. */
|
|
return gimple_code_name[lto_tag_to_gimple_code (tag)];
|
|
}
|
|
|
|
switch (tag)
|
|
{
|
|
case LTO_null:
|
|
return "LTO_null";
|
|
case LTO_bb0:
|
|
return "LTO_bb0";
|
|
case LTO_bb1:
|
|
return "LTO_bb1";
|
|
case LTO_eh_region:
|
|
return "LTO_eh_region";
|
|
case LTO_function:
|
|
return "LTO_function";
|
|
case LTO_eh_table:
|
|
return "LTO_eh_table";
|
|
case LTO_ert_cleanup:
|
|
return "LTO_ert_cleanup";
|
|
case LTO_ert_try:
|
|
return "LTO_ert_try";
|
|
case LTO_ert_allowed_exceptions:
|
|
return "LTO_ert_allowed_exceptions";
|
|
case LTO_ert_must_not_throw:
|
|
return "LTO_ert_must_not_throw";
|
|
case LTO_tree_pickle_reference:
|
|
return "LTO_tree_pickle_reference";
|
|
case LTO_global_stream_ref:
|
|
return "LTO_global_sream_ref";
|
|
case LTO_ssa_name_ref:
|
|
return "LTO_ssa_name_ref";
|
|
default:
|
|
return "LTO_UNKNOWN";
|
|
}
|
|
}
|
|
|
|
|
|
/* Get a section name for a particular type or name. The NAME field
|
|
is only used if SECTION_TYPE is LTO_section_function_body. For all
|
|
others it is ignored. The callee of this function is responsible
|
|
to free the returned name. */
|
|
|
|
char *
|
|
lto_get_section_name (int section_type, const char *name,
|
|
int node_order, struct lto_file_decl_data *f)
|
|
{
|
|
const char *add;
|
|
char post[32];
|
|
const char *sep;
|
|
char *buffer = NULL;
|
|
|
|
if (section_type == LTO_section_function_body)
|
|
{
|
|
gcc_assert (name != NULL);
|
|
if (name[0] == '*')
|
|
name++;
|
|
|
|
buffer = (char *)xmalloc (strlen (name) + 32);
|
|
sprintf (buffer, "%s.%d", name, node_order);
|
|
|
|
add = buffer;
|
|
sep = "";
|
|
}
|
|
else if (section_type < LTO_N_SECTION_TYPES)
|
|
{
|
|
add = lto_section_name[section_type];
|
|
sep = ".";
|
|
}
|
|
else
|
|
internal_error ("bytecode stream: unexpected LTO section %s", name);
|
|
|
|
/* Make the section name unique so that ld -r combining sections
|
|
doesn't confuse the reader with merged sections.
|
|
|
|
For options don't add a ID, the option reader cannot deal with them
|
|
and merging should be ok here. */
|
|
if (section_type == LTO_section_opts)
|
|
strcpy (post, "");
|
|
else if (f != NULL)
|
|
sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, f->id);
|
|
else
|
|
sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, get_random_seed (false));
|
|
char *res = concat (section_name_prefix, sep, add, post, NULL);
|
|
if (buffer)
|
|
free (buffer);
|
|
return res;
|
|
}
|
|
|
|
|
|
/* Show various memory usage statistics related to LTO. */
|
|
|
|
void
|
|
print_lto_report (const char *s)
|
|
{
|
|
unsigned i;
|
|
|
|
fprintf (stderr, "[%s] # of input files: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s, lto_stats.num_input_files);
|
|
|
|
fprintf (stderr, "[%s] # of input cgraph nodes: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
lto_stats.num_input_cgraph_nodes);
|
|
|
|
fprintf (stderr, "[%s] # of function bodies: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
lto_stats.num_function_bodies);
|
|
|
|
for (i = 0; i < NUM_TREE_CODES; i++)
|
|
if (lto_stats.num_trees[i])
|
|
fprintf (stderr, "[%s] # of '%s' objects read: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
get_tree_code_name ((enum tree_code) i), lto_stats.num_trees[i]);
|
|
|
|
if (flag_lto)
|
|
{
|
|
fprintf (stderr, "[%s] Compression: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED " output bytes, "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED " compressed bytes", s,
|
|
lto_stats.num_output_il_bytes,
|
|
lto_stats.num_compressed_il_bytes);
|
|
if (lto_stats.num_output_il_bytes > 0)
|
|
{
|
|
const float dividend = (float) lto_stats.num_compressed_il_bytes;
|
|
const float divisor = (float) lto_stats.num_output_il_bytes;
|
|
fprintf (stderr, " (ratio: %f)", dividend / divisor);
|
|
}
|
|
fprintf (stderr, "\n");
|
|
}
|
|
|
|
if (flag_wpa)
|
|
{
|
|
fprintf (stderr, "[%s] # of output files: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
lto_stats.num_output_files);
|
|
|
|
fprintf (stderr, "[%s] # of output symtab nodes: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
lto_stats.num_output_symtab_nodes);
|
|
|
|
fprintf (stderr, "[%s] # of output tree pickle references: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
lto_stats.num_pickle_refs_output);
|
|
fprintf (stderr, "[%s] # of output tree bodies: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
lto_stats.num_tree_bodies_output);
|
|
|
|
fprintf (stderr, "[%s] # callgraph partitions: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
|
lto_stats.num_cgraph_partitions);
|
|
|
|
fprintf (stderr, "[%s] Compression: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED " input bytes, "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED " uncompressed bytes", s,
|
|
lto_stats.num_input_il_bytes,
|
|
lto_stats.num_uncompressed_il_bytes);
|
|
if (lto_stats.num_input_il_bytes > 0)
|
|
{
|
|
const float dividend = (float) lto_stats.num_uncompressed_il_bytes;
|
|
const float divisor = (float) lto_stats.num_input_il_bytes;
|
|
fprintf (stderr, " (ratio: %f)", dividend / divisor);
|
|
}
|
|
fprintf (stderr, "\n");
|
|
}
|
|
|
|
for (i = 0; i < LTO_N_SECTION_TYPES; i++)
|
|
fprintf (stderr, "[%s] Size of mmap'd section %s: "
|
|
HOST_WIDE_INT_PRINT_UNSIGNED " bytes\n", s,
|
|
lto_section_name[i], lto_stats.section_size[i]);
|
|
}
|
|
|
|
/* Initialization common to the LTO reader and writer. */
|
|
|
|
void
|
|
lto_streamer_init (void)
|
|
{
|
|
/* Check that all the TS_* handled by the reader and writer routines
|
|
match exactly the structures defined in treestruct.def. When a
|
|
new TS_* astructure is added, the streamer should be updated to
|
|
handle it. */
|
|
if (flag_checking)
|
|
streamer_check_handled_ts_structures ();
|
|
}
|
|
|
|
|
|
/* Gate function for all LTO streaming passes. */
|
|
|
|
bool
|
|
gate_lto_out (void)
|
|
{
|
|
return ((flag_generate_lto || flag_generate_offload || in_lto_p)
|
|
/* Don't bother doing anything if the program has errors. */
|
|
&& !seen_error ());
|
|
}
|
|
|
|
/* Check that the version MAJOR.MINOR is the correct version number. */
|
|
|
|
void
|
|
lto_check_version (int major, int minor, const char *file_name)
|
|
{
|
|
if (major != LTO_major_version || minor != LTO_minor_version)
|
|
fatal_error (input_location,
|
|
"bytecode stream in file %qs generated with LTO version "
|
|
"%d.%d instead of the expected %d.%d",
|
|
file_name,
|
|
major, minor,
|
|
LTO_major_version, LTO_minor_version);
|
|
}
|
|
|
|
|
|
/* Initialize all the streamer hooks used for streaming GIMPLE. */
|
|
|
|
void
|
|
lto_streamer_hooks_init (void)
|
|
{
|
|
streamer_hooks_init ();
|
|
streamer_hooks.write_tree = lto_output_tree;
|
|
streamer_hooks.read_tree = lto_input_tree;
|
|
streamer_hooks.input_location = lto_input_location;
|
|
streamer_hooks.output_location = lto_output_location;
|
|
streamer_hooks.output_location_and_block = lto_output_location_and_block;
|
|
}
|