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Optimize ecma_number_to_uint32 (#3470)

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The ecma_number_to_uint32 function is called many times, we can merge
ecma_number_is_nan and ecma_number_is_infinity checks to !ecma_number_is_finite
to let the compiler generate more optimal code for it.

JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác oszi@inf.u-szeged.hu
This commit is contained in:
Csaba Osztrogonác
2019-12-20 12:37:02 +01:00
committed by Robert Fancsik
parent 8cb2be6001
commit 518fcf2c6a
3 changed files with 20 additions and 3 deletions
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jerry-core/ecma/base/ecma-helpers-number.c
+18
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@@ -329,6 +329,24 @@ ecma_number_is_infinity (ecma_number_t num) /**< ecma-number */
&& (fraction == 0));
} /* ecma_number_is_infinity */
/**
* Check if number is finite
*
* @return true - if number is finite
* false - if number is NaN or infinity
*/
extern inline bool JERRY_ATTR_ALWAYS_INLINE
ecma_number_is_finite (ecma_number_t num) /**< ecma-number */
{
#if defined (__GNUC__) || defined (__clang__)
return __builtin_isfinite (num);
#elif defined (WIN32)
return isfinite (num);
#else
return !ecma_number_is_nan (num) && !ecma_number_is_infinity (num);
#endif /* defined (__GNUC__) || defined (__clang__) */
} /* ecma_number_is_finite */
/**
* Get fraction and exponent of the number
*