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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/jerry.c
+3 -3
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@@ -942,11 +942,11 @@ jerry_get_array_length (const jerry_value_t value)
}
jerry_length_t length = 0;
ecma_string_t *magic_string_length_p = ecma_get_magic_string (LIT_MAGIC_STRING_LENGTH);
ecma_string_t magic_string_length;
ecma_init_ecma_length_string (&magic_string_length);
ecma_value_t len_value = ecma_op_object_get (ecma_get_object_from_value (value),
magic_string_length_p);
ecma_deref_ecma_string (magic_string_length_p);
&magic_string_length);
length = ecma_number_to_uint32 (ecma_get_number_from_value (len_value));
ecma_free_value (len_value);