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)));
+ sprintf (post, "." HOST_WIDE_INT_PRINT_HEX_PURE, get_random_seed (false));
return concat (LTO_SECTION_NAME_PREFIX, sep, add, post, NULL);
}
}
-/* Record NODE in CACHE. */
-
-static void
-lto_record_common_node (struct lto_streamer_cache_d *cache, tree node)
-{
- /* We have to make sure to fill exactly the same number of
- elements for all frontends. That can include NULL trees.
- As our hash table can't deal with zero entries we'll simply stream
- a random other tree. A NULL tree never will be looked up so it
- doesn't matter which tree we replace it with, just to be sure
- use error_mark_node. */
- if (!node)
- node = error_mark_node;
-
- lto_streamer_cache_append (cache, node);
-
- if (POINTER_TYPE_P (node)
- || TREE_CODE (node) == COMPLEX_TYPE
- || TREE_CODE (node) == ARRAY_TYPE)
- lto_record_common_node (cache, TREE_TYPE (node));
- else if (TREE_CODE (node) == RECORD_TYPE)
- {
- /* The FIELD_DECLs of structures should be shared, so that every
- COMPONENT_REF uses the same tree node when referencing a field.
- Pointer equality between FIELD_DECLs is used by the alias
- machinery to compute overlapping memory references (See
- nonoverlapping_component_refs_p). */
- tree f;
- for (f = TYPE_FIELDS (node); f; f = TREE_CHAIN (f))
- lto_record_common_node (cache, f);
- }
-}
-
-/* Preload common nodes into CACHE and make sure they are merged
- properly according to the gimple type table. */
-
-static void
-lto_preload_common_nodes (struct lto_streamer_cache_d *cache)
-{
- unsigned i;
-
- /* The MAIN_IDENTIFIER_NODE is normally set up by the front-end, but the
- LTO back-end must agree. Currently, the only languages that set this
- use the name "main". */
- if (main_identifier_node)
- {
- const char *main_name = IDENTIFIER_POINTER (main_identifier_node);
- gcc_assert (strcmp (main_name, "main") == 0);
- }
- else
- main_identifier_node = get_identifier ("main");
-
- gcc_assert (ptrdiff_type_node == integer_type_node);
-
- /* FIXME lto. In the C++ front-end, fileptr_type_node is defined as a
- variant copy of of ptr_type_node, rather than ptr_node itself. The
- distinction should only be relevant to the front-end, so we always
- use the C definition here in lto1.
-
- These should be assured in pass_ipa_free_lang_data. */
- gcc_assert (fileptr_type_node == ptr_type_node);
- gcc_assert (TYPE_MAIN_VARIANT (fileptr_type_node) == ptr_type_node);
-
- for (i = 0; i < itk_none; i++)
- /* Skip itk_char. char_type_node is dependent on -f[un]signed-char. */
- if (i != itk_char)
- lto_record_common_node (cache, integer_types[i]);
-
- for (i = 0; i < TYPE_KIND_LAST; i++)
- lto_record_common_node (cache, sizetype_tab[i]);
-
- for (i = 0; i < TI_MAX; i++)
- /* Skip boolean type and constants, they are frontend dependent. */
- if (i != TI_BOOLEAN_TYPE
- && i != TI_BOOLEAN_FALSE
- && i != TI_BOOLEAN_TRUE)
- lto_record_common_node (cache, global_trees[i]);
-}
-
-
#ifdef LTO_STREAMER_DEBUG
static htab_t tree_htab;
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 ();
+ streamer_check_handled_ts_structures ();
#ifdef LTO_STREAMER_DEBUG
tree_htab = htab_create (31, hash_tree, eq_tree, NULL);
}
-/* Return true if EXPR is a tree node that can be written to disk. */
-static inline bool
-lto_is_streamable (tree expr)
-{
- enum tree_code code = TREE_CODE (expr);
-
- /* Notice that we reject SSA_NAMEs as well. We only emit the SSA
- name version in lto_output_tree_ref (see output_ssa_names). */
- return !is_lang_specific (expr)
- && code != SSA_NAME
- && code != CALL_EXPR
- && code != LANG_TYPE
- && code != MODIFY_EXPR
- && code != INIT_EXPR
- && code != TARGET_EXPR
- && code != BIND_EXPR
- && code != WITH_CLEANUP_EXPR
- && code != STATEMENT_LIST
- && code != OMP_CLAUSE
- && code != OPTIMIZATION_NODE
- && (code == CASE_LABEL_EXPR
- || code == DECL_EXPR
- || TREE_CODE_CLASS (code) != tcc_statement);
-}
-
-
/* Initialize all the streamer hooks used for streaming GIMPLE. */
void
lto_streamer_hooks_init (void)
{
streamer_hooks_init ();
- streamer_hooks.name = "gimple";
- streamer_hooks.preload_common_nodes = lto_preload_common_nodes;
- streamer_hooks.is_streamable = lto_is_streamable;
- streamer_hooks.write_tree = lto_streamer_write_tree;
- streamer_hooks.read_tree = lto_streamer_read_tree;
+ streamer_hooks.write_tree = lto_output_tree;
+ streamer_hooks.read_tree = lto_input_tree;
}
OSDN Git Service
