/* Miscellaneous utilities for GIMPLE streaming. Things that are used
in both input and output are here.
- Copyright 2009, 2010 Free Software Foundation, Inc.
+ Copyright (C) 2009-2020 Free Software Foundation, Inc.
Contributed by Doug Kwan <dougkwan@google.com>
This file is part of GCC.
#include "config.h"
#include "system.h"
#include "coretypes.h"
-#include "tm.h"
-#include "toplev.h"
-#include "flags.h"
+#include "backend.h"
#include "tree.h"
#include "gimple.h"
-#include "tree-flow.h"
-#include "diagnostic-core.h"
-#include "bitmap.h"
-#include "vec.h"
#include "tree-streamer.h"
+#include "cgraph.h"
#include "lto-streamer.h"
-#include "streamer-hooks.h"
+#include "toplev.h"
+#include "lto-section-names.h"
/* Statistics gathered during LTO, WPA and LTRANS. */
struct lto_stats_d lto_stats;
-/* LTO uses bitmaps with different life-times. So use a seperate
- obstack for all LTO bitmaps. */
-static bitmap_obstack lto_obstack;
-static bool lto_obstack_initialized;
+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. */
{
/* For tags representing tree nodes, return the name of the
associated tree code. */
- return tree_code_name[lto_tag_to_tree_code (tag)];
+ return get_tree_code_name (lto_tag_to_tree_code (tag));
}
if (lto_tag_is_gimple_code_p (tag))
}
-/* Allocate a bitmap from heap. Initializes the LTO obstack if necessary. */
-
-bitmap
-lto_bitmap_alloc (void)
-{
- if (!lto_obstack_initialized)
- {
- bitmap_obstack_initialize (<o_obstack);
- lto_obstack_initialized = true;
- }
- return BITMAP_ALLOC (<o_obstack);
-}
-
-/* Free bitmap B. */
-
-void
-lto_bitmap_free (bitmap b)
-{
- BITMAP_FREE (b);
-}
-
-
/* 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, struct lto_file_decl_data *f)
+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];
gcc_assert (name != NULL);
if (name[0] == '*')
name++;
- add = name;
+
+ char *buffer = (char *)xmalloc (strlen (name) + 32);
+ sprintf (buffer, "%s.%d", name, node_order);
+
+ add = buffer;
sep = "";
}
else if (section_type < LTO_N_SECTION_TYPES)
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.
-
- XXX: use crc64 to minimize collisions? */
+ 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, ".%x", f ? f->id : crc32_string(0, get_random_seed (false)));
- return concat (LTO_SECTION_NAME_PREFIX, sep, add, post, NULL);
+ sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, get_random_seed (false));
+ return concat (section_name_prefix, sep, add, post, NULL);
}
/* Show various memory usage statistics related to LTO. */
void
-print_lto_report (void)
+print_lto_report (const char *s)
{
- const char *s = (flag_lto) ? "LTO" : (flag_wpa) ? "WPA" : "LTRANS";
unsigned i;
- fprintf (stderr, "%s statistics\n", s);
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_function_bodies);
- fprintf (stderr, "[%s] ", s);
- print_gimple_types_stats ();
-
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,
- tree_code_name[i], lto_stats.num_trees[i]);
+ get_tree_code_name ((enum tree_code) i), lto_stats.num_trees[i]);
if (flag_lto)
{
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
lto_stats.num_output_files);
- fprintf (stderr, "[%s] # of output cgraph nodes: "
+ fprintf (stderr, "[%s] # of output symtab nodes: "
HOST_WIDE_INT_PRINT_UNSIGNED "\n", s,
- lto_stats.num_output_cgraph_nodes);
+ 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_section_name[i], lto_stats.section_size[i]);
}
-
-#ifdef LTO_STREAMER_DEBUG
-static htab_t tree_htab;
-
-struct tree_hash_entry
-{
- tree key;
- intptr_t value;
-};
-
-static hashval_t
-hash_tree (const void *p)
-{
- const struct tree_hash_entry *e = (const struct tree_hash_entry *) p;
- return htab_hash_pointer (e->key);
-}
-
-static int
-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 *e2 = (const struct tree_hash_entry *) p2;
- return (e1->key == e2->key);
-}
-#endif
-
/* Initialization common to the LTO reader and writer. */
void
match exactly the structures defined in treestruct.def. When a
new TS_* astructure is added, the streamer should be updated to
handle it. */
- check_handled_ts_structures ();
-
-#ifdef LTO_STREAMER_DEBUG
- tree_htab = htab_create (31, hash_tree, eq_tree, NULL);
-#endif
+ if (flag_checking)
+ streamer_check_handled_ts_structures ();
}
bool
gate_lto_out (void)
{
- return ((flag_generate_lto || in_lto_p)
+ return ((flag_generate_lto || flag_generate_offload || in_lto_p)
/* Don't bother doing anything if the program has errors. */
&& !seen_error ());
}
-
-#ifdef LTO_STREAMER_DEBUG
-/* 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
- mapping is useful when debugging streaming problems. A debugging
- session can be started on both reader and writer using ORIG_T
- as a breakpoint value in both sessions.
-
- Note that this mapping is transient and only valid while T is
- being reconstructed. Once T is fully built, the mapping is
- removed. */
-
-void
-lto_orig_address_map (tree t, intptr_t orig_t)
-{
- struct tree_hash_entry ent;
- struct tree_hash_entry **slot;
-
- ent.key = t;
- ent.value = orig_t;
- slot
- = (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, INSERT);
- gcc_assert (!*slot);
- *slot = XNEW (struct tree_hash_entry);
- **slot = ent;
-}
-
-
-/* Get the original address of T as it was seen by the writer. This
- is only valid while T is being reconstructed. */
-
-intptr_t
-lto_orig_address_get (tree t)
-{
- struct tree_hash_entry ent;
- struct tree_hash_entry **slot;
-
- ent.key = t;
- slot
- = (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, NO_INSERT);
- return (slot ? (*slot)->value : 0);
-}
-
-
-/* Clear the mapping of T to its original address. */
-
-void
-lto_orig_address_remove (tree t)
-{
- struct tree_hash_entry ent;
- struct tree_hash_entry **slot;
-
- ent.key = t;
- slot
- = (struct tree_hash_entry **) htab_find_slot (tree_htab, &ent, NO_INSERT);
- gcc_assert (slot);
- free (*slot);
- htab_clear_slot (tree_htab, (PTR *)slot);
-}
-#endif
-
-
/* Check that the version MAJOR.MINOR is the correct version number. */
void
-lto_check_version (int major, int minor)
+lto_check_version (int major, int minor, const char *file_name)
{
if (major != LTO_major_version || minor != LTO_minor_version)
- fatal_error ("bytecode stream generated with LTO version %d.%d instead "
- "of the expected %d.%d",
+ 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);
}
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;
}
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