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Improve the construction of "length" built-in strings.

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The "length" property name is the most frequently used built-in string
and also frequently created by various hot-paths. New functions are
added to improve the speed of the "length" string creation.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2016-07-13 04:50:47 -07:00
parent b4bba2ef70
commit 6f1ce8d6bb
17 changed files with 131 additions and 84 deletions
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jerry-core/ecma/builtin-objects/ecma-builtin-helpers.c
+1 -1
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@@ -335,7 +335,7 @@ ecma_builtin_helper_array_concat_value (ecma_object_t *obj_p, /**< array */
if (ecma_is_value_object (value)
&& (ecma_object_get_class_name (ecma_get_object_from_value (value)) == LIT_MAGIC_STRING_ARRAY_UL))
{
ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH);
ecma_string_t *magic_string_length_p = ecma_new_ecma_length_string ();
/* 5.b.ii */
ECMA_TRY_CATCH (arg_len_value,
ecma_op_object_get (ecma_get_object_from_value (value),