[059/nnn] poly_int: tree-ssa-loop-ivopts.c:iv_use

[Jeff Law]

On 10/23/2017 11:24 AM, Richard Sandiford wrote:
> This patch makes ivopts handle polynomial address offsets
> when recording potential IV uses.
> 
> 
> 2017-10-23  Richard Sandiford  <richard.sandiford@linaro.org>
> 	    Alan Hayward  <alan.hayward@arm.com>
> 	    David Sherwood  <david.sherwood@arm.com>
> 
> gcc/
> 	* tree-ssa-loop-ivopts.c (iv_use::addr_offset): Change from
> 	an unsigned HOST_WIDE_INT to a poly_uint64_pod.
> 	(group_compare_offset): Update accordingly.
> 	(split_small_address_groups_p): Likewise.
> 	(record_use): Take addr_offset as a poly_uint64 rather than
> 	an unsigned HOST_WIDE_INT.
> 	(strip_offset): Return the offset as a poly_uint64 rather than
> 	an unsigned HOST_WIDE_INT.
> 	(record_group_use, split_address_groups): Track polynomial offsets.
> 	(add_iv_candidate_for_use): Likewise.
> 	(addr_offset_valid_p): Take the offset as a poly_int64 rather
> 	than a HOST_WIDE_INT.
> 	(strip_offset_1): Return the offset as a poly_int64 rather than
> 	a HOST_WIDE_INT.
OK.
jeff