/* Miscellaneous utilities for GIMPLE streaming. Things that are used
|
/* Miscellaneous utilities for GIMPLE streaming. Things that are used
|
in both input and output are here.
|
in both input and output are here.
|
|
|
Copyright 2009, 2010 Free Software Foundation, Inc.
|
Copyright 2009, 2010 Free Software Foundation, Inc.
|
Contributed by Doug Kwan <dougkwan@google.com>
|
Contributed by Doug Kwan <dougkwan@google.com>
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
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
|
the terms of the GNU General Public License as published by the Free
|
Software Foundation; either version 3, or (at your option) any later
|
Software Foundation; either version 3, or (at your option) any later
|
version.
|
version.
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
for more details.
|
for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING3. If not see
|
along with GCC; see the file COPYING3. If not see
|
<http://www.gnu.org/licenses/>. */
|
<http://www.gnu.org/licenses/>. */
|
|
|
#include "config.h"
|
#include "config.h"
|
#include "system.h"
|
#include "system.h"
|
#include "coretypes.h"
|
#include "coretypes.h"
|
#include "tm.h"
|
#include "tm.h"
|
#include "toplev.h"
|
#include "toplev.h"
|
#include "flags.h"
|
#include "flags.h"
|
#include "tree.h"
|
#include "tree.h"
|
#include "gimple.h"
|
#include "gimple.h"
|
#include "tree-flow.h"
|
#include "tree-flow.h"
|
#include "diagnostic-core.h"
|
#include "diagnostic-core.h"
|
#include "bitmap.h"
|
#include "bitmap.h"
|
#include "vec.h"
|
#include "vec.h"
|
#include "tree-streamer.h"
|
#include "tree-streamer.h"
|
#include "lto-streamer.h"
|
#include "lto-streamer.h"
|
#include "streamer-hooks.h"
|
#include "streamer-hooks.h"
|
|
|
/* Statistics gathered during LTO, WPA and LTRANS. */
|
/* Statistics gathered during LTO, WPA and LTRANS. */
|
struct lto_stats_d lto_stats;
|
struct lto_stats_d lto_stats;
|
|
|
/* LTO uses bitmaps with different life-times. So use a seperate
|
/* LTO uses bitmaps with different life-times. So use a seperate
|
obstack for all LTO bitmaps. */
|
obstack for all LTO bitmaps. */
|
static bitmap_obstack lto_obstack;
|
static bitmap_obstack lto_obstack;
|
static bool lto_obstack_initialized;
|
static bool lto_obstack_initialized;
|
|
|
|
|
/* Return a string representing LTO tag TAG. */
|
/* Return a string representing LTO tag TAG. */
|
|
|
const char *
|
const char *
|
lto_tag_name (enum LTO_tags tag)
|
lto_tag_name (enum LTO_tags tag)
|
{
|
{
|
if (lto_tag_is_tree_code_p (tag))
|
if (lto_tag_is_tree_code_p (tag))
|
{
|
{
|
/* For tags representing tree nodes, return the name of the
|
/* For tags representing tree nodes, return the name of the
|
associated tree code. */
|
associated tree code. */
|
return tree_code_name[lto_tag_to_tree_code (tag)];
|
return tree_code_name[lto_tag_to_tree_code (tag)];
|
}
|
}
|
|
|
if (lto_tag_is_gimple_code_p (tag))
|
if (lto_tag_is_gimple_code_p (tag))
|
{
|
{
|
/* For tags representing gimple statements, return the name of
|
/* For tags representing gimple statements, return the name of
|
the associated gimple code. */
|
the associated gimple code. */
|
return gimple_code_name[lto_tag_to_gimple_code (tag)];
|
return gimple_code_name[lto_tag_to_gimple_code (tag)];
|
}
|
}
|
|
|
switch (tag)
|
switch (tag)
|
{
|
{
|
case LTO_null:
|
case LTO_null:
|
return "LTO_null";
|
return "LTO_null";
|
case LTO_bb0:
|
case LTO_bb0:
|
return "LTO_bb0";
|
return "LTO_bb0";
|
case LTO_bb1:
|
case LTO_bb1:
|
return "LTO_bb1";
|
return "LTO_bb1";
|
case LTO_eh_region:
|
case LTO_eh_region:
|
return "LTO_eh_region";
|
return "LTO_eh_region";
|
case LTO_function:
|
case LTO_function:
|
return "LTO_function";
|
return "LTO_function";
|
case LTO_eh_table:
|
case LTO_eh_table:
|
return "LTO_eh_table";
|
return "LTO_eh_table";
|
case LTO_ert_cleanup:
|
case LTO_ert_cleanup:
|
return "LTO_ert_cleanup";
|
return "LTO_ert_cleanup";
|
case LTO_ert_try:
|
case LTO_ert_try:
|
return "LTO_ert_try";
|
return "LTO_ert_try";
|
case LTO_ert_allowed_exceptions:
|
case LTO_ert_allowed_exceptions:
|
return "LTO_ert_allowed_exceptions";
|
return "LTO_ert_allowed_exceptions";
|
case LTO_ert_must_not_throw:
|
case LTO_ert_must_not_throw:
|
return "LTO_ert_must_not_throw";
|
return "LTO_ert_must_not_throw";
|
case LTO_tree_pickle_reference:
|
case LTO_tree_pickle_reference:
|
return "LTO_tree_pickle_reference";
|
return "LTO_tree_pickle_reference";
|
case LTO_field_decl_ref:
|
case LTO_field_decl_ref:
|
return "LTO_field_decl_ref";
|
return "LTO_field_decl_ref";
|
case LTO_function_decl_ref:
|
case LTO_function_decl_ref:
|
return "LTO_function_decl_ref";
|
return "LTO_function_decl_ref";
|
case LTO_label_decl_ref:
|
case LTO_label_decl_ref:
|
return "LTO_label_decl_ref";
|
return "LTO_label_decl_ref";
|
case LTO_namespace_decl_ref:
|
case LTO_namespace_decl_ref:
|
return "LTO_namespace_decl_ref";
|
return "LTO_namespace_decl_ref";
|
case LTO_result_decl_ref:
|
case LTO_result_decl_ref:
|
return "LTO_result_decl_ref";
|
return "LTO_result_decl_ref";
|
case LTO_ssa_name_ref:
|
case LTO_ssa_name_ref:
|
return "LTO_ssa_name_ref";
|
return "LTO_ssa_name_ref";
|
case LTO_type_decl_ref:
|
case LTO_type_decl_ref:
|
return "LTO_type_decl_ref";
|
return "LTO_type_decl_ref";
|
case LTO_type_ref:
|
case LTO_type_ref:
|
return "LTO_type_ref";
|
return "LTO_type_ref";
|
case LTO_global_decl_ref:
|
case LTO_global_decl_ref:
|
return "LTO_global_decl_ref";
|
return "LTO_global_decl_ref";
|
default:
|
default:
|
return "LTO_UNKNOWN";
|
return "LTO_UNKNOWN";
|
}
|
}
|
}
|
}
|
|
|
|
|
/* Allocate a bitmap from heap. Initializes the LTO obstack if necessary. */
|
/* Allocate a bitmap from heap. Initializes the LTO obstack if necessary. */
|
|
|
bitmap
|
bitmap
|
lto_bitmap_alloc (void)
|
lto_bitmap_alloc (void)
|
{
|
{
|
if (!lto_obstack_initialized)
|
if (!lto_obstack_initialized)
|
{
|
{
|
bitmap_obstack_initialize (<o_obstack);
|
bitmap_obstack_initialize (<o_obstack);
|
lto_obstack_initialized = true;
|
lto_obstack_initialized = true;
|
}
|
}
|
return BITMAP_ALLOC (<o_obstack);
|
return BITMAP_ALLOC (<o_obstack);
|
}
|
}
|
|
|
/* Free bitmap B. */
|
/* Free bitmap B. */
|
|
|
void
|
void
|
lto_bitmap_free (bitmap b)
|
lto_bitmap_free (bitmap b)
|
{
|
{
|
BITMAP_FREE (b);
|
BITMAP_FREE (b);
|
}
|
}
|
|
|
|
|
/* Get a section name for a particular type or name. The NAME field
|
/* 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
|
is only used if SECTION_TYPE is LTO_section_function_body. For all
|
others it is ignored. The callee of this function is responsible
|
others it is ignored. The callee of this function is responsible
|
to free the returned name. */
|
to free the returned name. */
|
|
|
char *
|
char *
|
lto_get_section_name (int section_type, const char *name, struct lto_file_decl_data *f)
|
lto_get_section_name (int section_type, const char *name, struct lto_file_decl_data *f)
|
{
|
{
|
const char *add;
|
const char *add;
|
char post[32];
|
char post[32];
|
const char *sep;
|
const char *sep;
|
|
|
if (section_type == LTO_section_function_body)
|
if (section_type == LTO_section_function_body)
|
{
|
{
|
gcc_assert (name != NULL);
|
gcc_assert (name != NULL);
|
if (name[0] == '*')
|
if (name[0] == '*')
|
name++;
|
name++;
|
add = name;
|
add = name;
|
sep = "";
|
sep = "";
|
}
|
}
|
else if (section_type < LTO_N_SECTION_TYPES)
|
else if (section_type < LTO_N_SECTION_TYPES)
|
{
|
{
|
add = lto_section_name[section_type];
|
add = lto_section_name[section_type];
|
sep = ".";
|
sep = ".";
|
}
|
}
|
else
|
else
|
internal_error ("bytecode stream: unexpected LTO section %s", name);
|
internal_error ("bytecode stream: unexpected LTO section %s", name);
|
|
|
/* Make the section name unique so that ld -r combining sections
|
/* Make the section name unique so that ld -r combining sections
|
doesn't confuse the reader with merged sections.
|
doesn't confuse the reader with merged sections.
|
|
|
For options don't add a ID, the option reader cannot deal with them
|
For options don't add a ID, the option reader cannot deal with them
|
and merging should be ok here. */
|
and merging should be ok here. */
|
if (section_type == LTO_section_opts)
|
if (section_type == LTO_section_opts)
|
strcpy (post, "");
|
strcpy (post, "");
|
else if (f != NULL)
|
else if (f != NULL)
|
sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, f->id);
|
sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, f->id);
|
else
|
else
|
sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, get_random_seed (false));
|
sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, get_random_seed (false));
|
return concat (LTO_SECTION_NAME_PREFIX, sep, add, post, NULL);
|
return concat (LTO_SECTION_NAME_PREFIX, sep, add, post, NULL);
|
}
|
}
|
|
|
|
|
/* Show various memory usage statistics related to LTO. */
|
/* Show various memory usage statistics related to LTO. */
|
|
|
void
|
void
|
print_lto_report (void)
|
print_lto_report (void)
|
{
|
{
|
const char *s = (flag_lto) ? "LTO" : (flag_wpa) ? "WPA" : "LTRANS";
|
const char *s = (flag_lto) ? "LTO" : (flag_wpa) ? "WPA" : "LTRANS";
|
unsigned i;
|
unsigned i;
|
|
|
fprintf (stderr, "%s statistics\n", s);
|
fprintf (stderr, "%s statistics\n", s);
|
fprintf (stderr, "[%s] # of input files: "
|
fprintf (stderr, "[%s] # of input files: "
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s, lto_stats.num_input_files);
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s, lto_stats.num_input_files);
|
|
|
fprintf (stderr, "[%s] # of input cgraph nodes: "
|
fprintf (stderr, "[%s] # of input cgraph nodes: "
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
lto_stats.num_input_cgraph_nodes);
|
lto_stats.num_input_cgraph_nodes);
|
|
|
fprintf (stderr, "[%s] # of function bodies: "
|
fprintf (stderr, "[%s] # of function bodies: "
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
lto_stats.num_function_bodies);
|
lto_stats.num_function_bodies);
|
|
|
fprintf (stderr, "[%s] ", s);
|
fprintf (stderr, "[%s] ", s);
|
print_gimple_types_stats ();
|
print_gimple_types_stats ();
|
|
|
for (i = 0; i < NUM_TREE_CODES; i++)
|
for (i = 0; i < NUM_TREE_CODES; i++)
|
if (lto_stats.num_trees[i])
|
if (lto_stats.num_trees[i])
|
fprintf (stderr, "[%s] # of '%s' objects read: "
|
fprintf (stderr, "[%s] # of '%s' objects read: "
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
tree_code_name[i], lto_stats.num_trees[i]);
|
tree_code_name[i], lto_stats.num_trees[i]);
|
|
|
if (flag_lto)
|
if (flag_lto)
|
{
|
{
|
fprintf (stderr, "[%s] Compression: "
|
fprintf (stderr, "[%s] Compression: "
|
HOST_WIDE_INT_PRINT_UNSIGNED " output bytes, "
|
HOST_WIDE_INT_PRINT_UNSIGNED " output bytes, "
|
HOST_WIDE_INT_PRINT_UNSIGNED " compressed bytes", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED " compressed bytes", s,
|
lto_stats.num_output_il_bytes,
|
lto_stats.num_output_il_bytes,
|
lto_stats.num_compressed_il_bytes);
|
lto_stats.num_compressed_il_bytes);
|
if (lto_stats.num_output_il_bytes > 0)
|
if (lto_stats.num_output_il_bytes > 0)
|
{
|
{
|
const float dividend = (float) lto_stats.num_compressed_il_bytes;
|
const float dividend = (float) lto_stats.num_compressed_il_bytes;
|
const float divisor = (float) lto_stats.num_output_il_bytes;
|
const float divisor = (float) lto_stats.num_output_il_bytes;
|
fprintf (stderr, " (ratio: %f)", dividend / divisor);
|
fprintf (stderr, " (ratio: %f)", dividend / divisor);
|
}
|
}
|
fprintf (stderr, "\n");
|
fprintf (stderr, "\n");
|
}
|
}
|
|
|
if (flag_wpa)
|
if (flag_wpa)
|
{
|
{
|
fprintf (stderr, "[%s] # of output files: "
|
fprintf (stderr, "[%s] # of output files: "
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
lto_stats.num_output_files);
|
lto_stats.num_output_files);
|
|
|
fprintf (stderr, "[%s] # of output cgraph nodes: "
|
fprintf (stderr, "[%s] # of output cgraph nodes: "
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
lto_stats.num_output_cgraph_nodes);
|
lto_stats.num_output_cgraph_nodes);
|
|
|
fprintf (stderr, "[%s] # callgraph partitions: "
|
fprintf (stderr, "[%s] # callgraph partitions: "
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
|
lto_stats.num_cgraph_partitions);
|
lto_stats.num_cgraph_partitions);
|
|
|
fprintf (stderr, "[%s] Compression: "
|
fprintf (stderr, "[%s] Compression: "
|
HOST_WIDE_INT_PRINT_UNSIGNED " input bytes, "
|
HOST_WIDE_INT_PRINT_UNSIGNED " input bytes, "
|
HOST_WIDE_INT_PRINT_UNSIGNED " uncompressed bytes", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED " uncompressed bytes", s,
|
lto_stats.num_input_il_bytes,
|
lto_stats.num_input_il_bytes,
|
lto_stats.num_uncompressed_il_bytes);
|
lto_stats.num_uncompressed_il_bytes);
|
if (lto_stats.num_input_il_bytes > 0)
|
if (lto_stats.num_input_il_bytes > 0)
|
{
|
{
|
const float dividend = (float) lto_stats.num_uncompressed_il_bytes;
|
const float dividend = (float) lto_stats.num_uncompressed_il_bytes;
|
const float divisor = (float) lto_stats.num_input_il_bytes;
|
const float divisor = (float) lto_stats.num_input_il_bytes;
|
fprintf (stderr, " (ratio: %f)", dividend / divisor);
|
fprintf (stderr, " (ratio: %f)", dividend / divisor);
|
}
|
}
|
fprintf (stderr, "\n");
|
fprintf (stderr, "\n");
|
}
|
}
|
|
|
for (i = 0; i < LTO_N_SECTION_TYPES; i++)
|
for (i = 0; i < LTO_N_SECTION_TYPES; i++)
|
fprintf (stderr, "[%s] Size of mmap'd section %s: "
|
fprintf (stderr, "[%s] Size of mmap'd section %s: "
|
HOST_WIDE_INT_PRINT_UNSIGNED " bytes\n", s,
|
HOST_WIDE_INT_PRINT_UNSIGNED " bytes\n", s,
|
lto_section_name[i], lto_stats.section_size[i]);
|
lto_section_name[i], lto_stats.section_size[i]);
|
}
|
}
|
|
|
|
|
#ifdef LTO_STREAMER_DEBUG
|
#ifdef LTO_STREAMER_DEBUG
|
static htab_t tree_htab;
|
static htab_t tree_htab;
|
|
|
struct tree_hash_entry
|
struct tree_hash_entry
|
{
|
{
|
tree key;
|
tree key;
|
intptr_t value;
|
intptr_t value;
|
};
|
};
|
|
|
static hashval_t
|
static hashval_t
|
hash_tree (const void *p)
|
hash_tree (const void *p)
|
{
|
{
|
const struct tree_hash_entry *e = (const struct tree_hash_entry *) p;
|
const struct tree_hash_entry *e = (const struct tree_hash_entry *) p;
|
return htab_hash_pointer (e->key);
|
return htab_hash_pointer (e->key);
|
}
|
}
|
|
|
static int
|
static int
|
eq_tree (const void *p1, const void *p2)
|
eq_tree (const void *p1, const void *p2)
|
{
|
{
|
const struct tree_hash_entry *e1 = (const struct tree_hash_entry *) p1;
|
const struct tree_hash_entry *e1 = (const struct tree_hash_entry *) p1;
|
const struct tree_hash_entry *e2 = (const struct tree_hash_entry *) p2;
|
const struct tree_hash_entry *e2 = (const struct tree_hash_entry *) p2;
|
return (e1->key == e2->key);
|
return (e1->key == e2->key);
|
}
|
}
|
#endif
|
#endif
|
|
|
/* Initialization common to the LTO reader and writer. */
|
/* Initialization common to the LTO reader and writer. */
|
|
|
void
|
void
|
lto_streamer_init (void)
|
lto_streamer_init (void)
|
{
|
{
|
/* Check that all the TS_* handled by the reader and writer routines
|
/* Check that all the TS_* handled by the reader and writer routines
|
match exactly the structures defined in treestruct.def. When a
|
match exactly the structures defined in treestruct.def. When a
|
new TS_* astructure is added, the streamer should be updated to
|
new TS_* astructure is added, the streamer should be updated to
|
handle it. */
|
handle it. */
|
streamer_check_handled_ts_structures ();
|
streamer_check_handled_ts_structures ();
|
|
|
#ifdef LTO_STREAMER_DEBUG
|
#ifdef LTO_STREAMER_DEBUG
|
tree_htab = htab_create (31, hash_tree, eq_tree, NULL);
|
tree_htab = htab_create (31, hash_tree, eq_tree, NULL);
|
#endif
|
#endif
|
}
|
}
|
|
|
|
|
/* Gate function for all LTO streaming passes. */
|
/* Gate function for all LTO streaming passes. */
|
|
|
bool
|
bool
|
gate_lto_out (void)
|
gate_lto_out (void)
|
{
|
{
|
return ((flag_generate_lto || in_lto_p)
|
return ((flag_generate_lto || in_lto_p)
|
/* Don't bother doing anything if the program has errors. */
|
/* Don't bother doing anything if the program has errors. */
|
&& !seen_error ());
|
&& !seen_error ());
|
}
|
}
|
|
|
|
|
#ifdef LTO_STREAMER_DEBUG
|
#ifdef LTO_STREAMER_DEBUG
|
/* Add a mapping between T and ORIG_T, which is the numeric value of
|
/* Add a mapping between T and ORIG_T, which is the numeric value of
|
the original address of T as it was seen by the LTO writer. This
|
the original address of T as it was seen by the LTO writer. This
|
mapping is useful when debugging streaming problems. A debugging
|
mapping is useful when debugging streaming problems. A debugging
|
session can be started on both reader and writer using ORIG_T
|
session can be started on both reader and writer using ORIG_T
|
as a breakpoint value in both sessions.
|
as a breakpoint value in both sessions.
|
|
|
Note that this mapping is transient and only valid while T is
|
Note that this mapping is transient and only valid while T is
|
being reconstructed. Once T is fully built, the mapping is
|
being reconstructed. Once T is fully built, the mapping is
|
removed. */
|
removed. */
|
|
|
void
|
void
|
lto_orig_address_map (tree t, intptr_t orig_t)
|
lto_orig_address_map (tree t, intptr_t orig_t)
|
{
|
{
|
struct tree_hash_entry ent;
|
struct tree_hash_entry ent;
|
struct tree_hash_entry **slot;
|
struct tree_hash_entry **slot;
|
|
|
ent.key = t;
|
ent.key = t;
|
ent.value = orig_t;
|
ent.value = orig_t;
|
slot
|
slot
|
= (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, INSERT);
|
= (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, INSERT);
|
gcc_assert (!*slot);
|
gcc_assert (!*slot);
|
*slot = XNEW (struct tree_hash_entry);
|
*slot = XNEW (struct tree_hash_entry);
|
**slot = ent;
|
**slot = ent;
|
}
|
}
|
|
|
|
|
/* Get the original address of T as it was seen by the writer. This
|
/* Get the original address of T as it was seen by the writer. This
|
is only valid while T is being reconstructed. */
|
is only valid while T is being reconstructed. */
|
|
|
intptr_t
|
intptr_t
|
lto_orig_address_get (tree t)
|
lto_orig_address_get (tree t)
|
{
|
{
|
struct tree_hash_entry ent;
|
struct tree_hash_entry ent;
|
struct tree_hash_entry **slot;
|
struct tree_hash_entry **slot;
|
|
|
ent.key = t;
|
ent.key = t;
|
slot
|
slot
|
= (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, NO_INSERT);
|
= (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, NO_INSERT);
|
return (slot ? (*slot)->value : 0);
|
return (slot ? (*slot)->value : 0);
|
}
|
}
|
|
|
|
|
/* Clear the mapping of T to its original address. */
|
/* Clear the mapping of T to its original address. */
|
|
|
void
|
void
|
lto_orig_address_remove (tree t)
|
lto_orig_address_remove (tree t)
|
{
|
{
|
struct tree_hash_entry ent;
|
struct tree_hash_entry ent;
|
struct tree_hash_entry **slot;
|
struct tree_hash_entry **slot;
|
|
|
ent.key = t;
|
ent.key = t;
|
slot
|
slot
|
= (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, NO_INSERT);
|
= (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, NO_INSERT);
|
gcc_assert (slot);
|
gcc_assert (slot);
|
free (*slot);
|
free (*slot);
|
htab_clear_slot (tree_htab, (PTR *)slot);
|
htab_clear_slot (tree_htab, (PTR *)slot);
|
}
|
}
|
#endif
|
#endif
|
|
|
|
|
/* Check that the version MAJOR.MINOR is the correct version number. */
|
/* Check that the version MAJOR.MINOR is the correct version number. */
|
|
|
void
|
void
|
lto_check_version (int major, int minor)
|
lto_check_version (int major, int minor)
|
{
|
{
|
if (major != LTO_major_version || minor != LTO_minor_version)
|
if (major != LTO_major_version || minor != LTO_minor_version)
|
fatal_error ("bytecode stream generated with LTO version %d.%d instead "
|
fatal_error ("bytecode stream generated with LTO version %d.%d instead "
|
"of the expected %d.%d",
|
"of the expected %d.%d",
|
major, minor,
|
major, minor,
|
LTO_major_version, LTO_minor_version);
|
LTO_major_version, LTO_minor_version);
|
}
|
}
|
|
|
|
|
/* Initialize all the streamer hooks used for streaming GIMPLE. */
|
/* Initialize all the streamer hooks used for streaming GIMPLE. */
|
|
|
void
|
void
|
lto_streamer_hooks_init (void)
|
lto_streamer_hooks_init (void)
|
{
|
{
|
streamer_hooks_init ();
|
streamer_hooks_init ();
|
streamer_hooks.write_tree = lto_output_tree;
|
streamer_hooks.write_tree = lto_output_tree;
|
streamer_hooks.read_tree = lto_input_tree;
|
streamer_hooks.read_tree = lto_input_tree;
|
}
|
}
|
|
|
