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3.9.7.14 Variable Secondary To Constant Primary Unary Transfer

The struct x1f4_1stscope_type operator definition extension is to include the X1f4_E4_NXAC_LIST bit in its bits1 bits list field. The remaining optimization parameters are to be introduced via the struct x1f4_operator_type first extension, in a struct x1f4_ndbc_type definition. That is, the extension1 field of the struct x1f4_operator_type operator description must point a struct x1f4_1stscope_type record, whose ndbc_data field must point a struct x1f4_ndbc_type record, in turn describing the optimization parameters.

See struct x1f4_1stscope_type.

See struct x1f4_ndbc_type.

See struct x1f4_operator_type.

See Operator First Extension Scope Flags.

The optimization transforms expressions like:

2 * -e
(c * -e) * (2 * f)

into:

-2 * e
(c * e) * (-2 * f)