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Optimize arithmetic in VM.

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Add, substract, mul, mod, and increment/decrement operators are optimized.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg
2016-06-29 05:25:49 -07:00
parent a81c7c83d7
commit d882709ed2
4 changed files with 201 additions and 97 deletions
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jerry-core/ecma/base/ecma-helpers-value.c
+29
View File
@@ -732,6 +732,35 @@ ecma_value_assign_value (ecma_value_t *value_p, /**< [in, out] ecma value */
}
} /* ecma_value_assign_value */
/**
* Update the value of a float number to a new value
*
* Note:
* The original value is destroyed.
*
* @return updated ecma value
*/
ecma_value_t
ecma_update_float_number (ecma_value_t float_value, /**< original float value */
ecma_number_t new_number) /**< updated number value */
{
JERRY_ASSERT (ecma_is_value_float_number (float_value));
ecma_integer_value_t integer_number = (ecma_integer_value_t) new_number;
ecma_number_t *number_p = (ecma_number_t *) ecma_get_pointer_from_ecma_value (float_value);
if ((ecma_number_t) integer_number == new_number
&& ((integer_number == 0) ? ecma_is_number_equal_to_positive_zero (new_number)
: ECMA_IS_INTEGER_NUMBER (integer_number)))
{
ecma_dealloc_number (number_p);
return ecma_make_integer_value (integer_number);
}
*number_p = new_number;
return float_value;
} /* ecma_update_float_number */
/**
* Assign a float number to an ecma-value
*
jerry-core/ecma/base/ecma-helpers.h
+2 -1
View File
@@ -143,7 +143,7 @@ extern ecma_value_t ecma_make_object_value (const ecma_object_t *);
extern ecma_value_t ecma_make_error_value (ecma_value_t);
extern ecma_value_t ecma_make_error_obj_value (const ecma_object_t *);
extern ecma_integer_value_t ecma_get_integer_from_value (ecma_value_t) __attr_pure___;
extern ecma_number_t ecma_get_float_from_value (ecma_value_t value) __attr_pure___;
extern ecma_number_t ecma_get_float_from_value (ecma_value_t) __attr_pure___;
extern ecma_number_t ecma_get_number_from_value (ecma_value_t) __attr_pure___;
extern uint32_t ecma_get_uint32_from_value (ecma_value_t) __attr_pure___;
extern ecma_string_t *ecma_get_string_from_value (ecma_value_t) __attr_pure___;
@@ -153,6 +153,7 @@ extern ecma_value_t ecma_invert_boolean_value (ecma_value_t) __attr_pure___;
extern ecma_value_t ecma_copy_value (ecma_value_t);
extern ecma_value_t ecma_fast_copy_value (ecma_value_t);
extern ecma_value_t ecma_copy_value_if_not_object (ecma_value_t);
extern ecma_value_t ecma_update_float_number (ecma_value_t, ecma_number_t);
extern void ecma_value_assign_value (ecma_value_t *, ecma_value_t);
extern void ecma_value_assign_number (ecma_value_t *, ecma_number_t);
extern void ecma_value_assign_uint32 (ecma_value_t *, uint32_t);