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Extract binary lvalue operators (#2630)

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This patch substitutes all binary lvalue operators with an assigment + the corresponding binary operator.
E.g. A += (expression) is pasred as A = A + (expression).

Due to this replacement, all the related binary lvalue CBC opcodes can be removed.
Also the arithmetic related VM instructions can put their result directly onto the stack, since no more checking is needed.

JerryScript-DCO-1.0-Signed-off-by: Robert Fancsik frobert@inf.u-szeged.hu
This commit is contained in:
Robert Fancsik
2019-01-10 08:47:45 +01:00
committed by László Langó
parent e8502fa8cc
commit 93ec226650
7 changed files with 134 additions and 175 deletions
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jerry-core/ecma/base/ecma-helpers-value.c
+15
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@@ -975,6 +975,21 @@ ecma_free_value_if_not_object (ecma_value_t value) /**< value description */
}
} /* ecma_free_value_if_not_object */
/**
* Free an ecma-value number
*/
inline void JERRY_ATTR_ALWAYS_INLINE
ecma_free_number (ecma_value_t value) /**< value description */
{
JERRY_ASSERT (ecma_is_value_number (value));
if (ecma_is_value_float_number (value))
{
ecma_number_t *number_p = (ecma_number_t *) ecma_get_pointer_from_ecma_value (value);
ecma_dealloc_number (number_p);
}
} /* ecma_free_number */
/**
* Get the literal id associated with the given ecma_value type.
* This operation is equivalent to the JavaScript 'typeof' operator.