[PATCH] Fix PR81362: Vector peeling

[Robin Dapp]

The attached patch fixes PR81362.

npeel was erroneously overwritten by vect_peeling_hash_get_lowest_cost
although the corresponding dataref is not used afterwards.  It should be
safe to get rid of the npeel parameter since we use the returned
peeling_info's npeel anyway.  Also removed the body_cost_vec parameter
which is not used elsewhere.

Regards
 Robin


--

gcc/ChangeLog:

2017-07-12  Robin Dapp  <rdapp@linux.vnet.ibm.com>

        * (vect_enhance_data_refs_alignment):
	Remove body_cost_vec from _vect_peel_extended_info.
	tree-vect-data-refs.c (vect_peeling_hash_get_lowest_cost):
	Do not set body_cost_vec.
        (vect_peeling_hash_choose_best_peeling): Remove body_cost_vec
	and npeel.
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