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Improve allocation of memory for byte-code array and literal identifiers hash table.

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- literal identifiers hash table and byte-code array are now allocated in one heap block instead of four blocks;
 - memory regions with the hash tables and arrays are now linked into linked list using headers at start of the regions instead of using array_list.

JerryScript-DCO-1.0-Signed-off-by: Ruben Ayrapetyan r.ayrapetyan@samsung.com
This commit is contained in:
Ruben Ayrapetyan
2015-06-19 00:11:22 +03:00
parent 4e563932f1
commit bd9d1d4afd
7 changed files with 158 additions and 84 deletions
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jerry-core/parser/js/scopes-tree.cpp
+14 -7
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@@ -600,7 +600,10 @@ merge_subscopes (scopes_tree tree, opcode_t *data, lit_id_hash_table *lit_ids)
Reorder function declarations.
Rewrite opcodes' temporary uids with their keys in literal indexes 'hash' table. */
opcode_t *
scopes_tree_raw_data (scopes_tree tree, lit_id_hash_table *lit_ids)
scopes_tree_raw_data (scopes_tree tree, /**< scopes tree to convert to byte-code array */
uint8_t *buffer_p, /**< buffer for byte-code array and literal identifiers hash table */
size_t opcodes_array_size, /**< size of space for byte-code array */
lit_id_hash_table *lit_ids) /**< literal identifiers hash table */
{
JERRY_ASSERT (lit_ids);
assert_tree (tree);
@@ -613,10 +616,12 @@ scopes_tree_raw_data (scopes_tree tree, lit_id_hash_table *lit_ids)
global_oc = 0;
/* Dump bytecode and fill literal indexes 'hash' table. */
// +1 for valgrind
size_t size = sizeof (opcodes_header_t) + (size_t) (scopes_tree_count_opcodes (tree) + 1) * sizeof (opcode_t);
opcodes_header_t *opcodes_data = (opcodes_header_t *) mem_heap_alloc_block (size, MEM_HEAP_ALLOC_LONG_TERM);
memset (opcodes_data, 0, size);
JERRY_ASSERT (opcodes_array_size >=
sizeof (opcodes_header_t) + (size_t) (scopes_tree_count_opcodes (tree)) * sizeof (opcode_t));
opcodes_header_t *opcodes_data = (opcodes_header_t *) buffer_p;
memset (opcodes_data, 0, opcodes_array_size);
opcode_t *opcodes = (opcode_t *)(((uint8_t*) opcodes_data) + sizeof (opcodes_header_t));
merge_subscopes (tree, opcodes, lit_ids);
if (lit_id_to_uid != null_hash)
@@ -624,9 +629,11 @@ scopes_tree_raw_data (scopes_tree tree, lit_id_hash_table *lit_ids)
hash_table_free (lit_id_to_uid);
lit_id_to_uid = null_hash;
}
opcodes_data->lit_id_hash = lit_ids;
MEM_CP_SET_POINTER (opcodes_data->lit_id_hash_cp, lit_ids);
return opcodes;
}
} /* scopes_tree_raw_data */
void
scopes_tree_set_strict_mode (scopes_tree tree, bool strict_mode)