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The struct x1f4_1stscope_type
operator definition extension is to
include the
X1f4_E4_MXAS_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_odbs_type
definition. That is, the extension1
field of the
struct x1f4_operator_type
operator description must point a struct
x1f4_1stscope_type
record, whose odbs_data
field must point a
struct x1f4_odbs_type
record, in turn describing the optimization
parameters.
See struct x1f4_1stscope_type.
See struct x1f4_operator_type.
See Operator First Extension Scope Flags.
The optimization transforms expressions like:
e << 2 << 2 e << 2 << c << 2
into:
e << 4 e << 4 << c