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When this option is omitted, division of floating-point constants into multiplications of the corresponding reciprocals as constants is not performed.
This option converts divisions of floating-point constants into multiplications of the corresponding reciprocals as constants. |
To be specific, when there is an expression of (variable ÷ divisor) with the divisor being a constant, a code with the expression converted into (variable × reciprocal of divisor) will be generated. |
When this option is specified, the execution performance of floating-point constant division will be improved. The precision and order of operations may, however, be changed, so take care on this point. |