(struct function_unit_op): Add issue_delay, conflict_exp, and
issue_exp fields. Drop busyexp field.
(struct function_unit): Add needs_blockage_function,
needs_range_function, issue_delay, and max_blockage fields. Drop
costexp, and busy delay fields.
(enum operator): Add POS_MINUS_OP, EQ_OP, MIN_OP, RANGE_OP.
(operate_exp): Implement new ops.
(make_internal_attr): Set unsigned_p based on the value of SPECIAL.
(write_attr_get): Function is unsigned when unsigned_p is true.
(write_attr_valueq): Write hex value of large constants in a comment.
(simplify_by_exploding): Check for EXP having no EQ_ATTR expressions
and for all values as the default.
(find_and_mark_used_attributes): Add TERMS and NTERMS parameters.
(max_attr_value): Allow IF_THEN_ELSE.
(simplify_knowing, write_complex_function, extend_range): New
functions.
(gen_unit): Use local variables to name the fields. Change the
meaning of busy-delay to issue-delay.
(expand_units): Compute issue_exp. Write attributes for computing
`<name>_unit_blockage' and `<name>_unit_blockage_range' functions.
Compute max_blockage, and the needs_*_function values.
(write_function_unit_info): Write blockage function and conflict cost
functions using write_complex_function. Write new function_unit_desc
fields.
(expand_units): Use the normalized values of the
unit's CONDEXP and BUSYEXP.
From-SVN: r1952
unmark_used_attributes, add_values_to_cover, increment_current_value,
test_for_current_value, simplify_with_current_value,
simplify_with_current_value_aux): New functions.
(struct function_unit): Add max_busy_cost, {min,max}_busy_delay.
(expand_units): Use simplify_by_exploding to simplify the
function_units_used attribute. Compute the ready cost attributes
as a COND in numeric order.
(gen_unit): Compute {min,max}_ready_cost and {min,max}_busy_delay.
(write_function_unit_info): Determine if there is only one busy
delay value by comparing the minimum and maximum busy delay.
Write the initializer for function_units in numeric order.
Write out the maximum busy delay field.
(attr_desc): Add negative_ok field.
(find_attr, make_internal_attr): Initialize negative_ok.
(check_attr_value): Allow negative values for CONST_STRING for
numeric attributes with negative_ok.
(encode_units_mask): Change the encoding of the function_units_used
result.
{....
From-SVN: r1848
