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riscv-gcc-1
Commit 1e69cc8f by Robin Dapp Committed by Andreas Krebbel
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Vector peeling cost model 3/6 

gcc/ChangeLog:

2017-05-30  Robin Dapp  <rdapp@linux.vnet.ibm.com>

	* tree-vect-data-refs.c (vect_peeling_hash_choose_best_peeling):
	Return peeling info and set costs to zero for unlimited cost
	model.
	(vect_enhance_data_refs_alignment): Also inspect all datarefs
	with unknown misalignment. Compute and costs for unknown
	misalignment, compare them to the costs for known misalignment
	and choose the cheapest for peeling.

From-SVN: r248677
parent 71595748
Showing with 111 additions and 97 deletions
gcc/ChangeLog
2017-05-30 Robin Dapp <rdapp@linux.vnet.ibm.com>
* tree-vect-data-refs.c (vect_peeling_hash_choose_best_peeling):
Return peeling info and set costs to zero for unlimited cost
model.
(vect_enhance_data_refs_alignment): Also inspect all datarefs
with unknown misalignment. Compute and costs for unknown
misalignment, compare them to the costs for known misalignment
and choose the cheapest for peeling.
2017-05-30 Robin Dapp <rdapp@linux.vnet.ibm.com>
* tree-vect-data-refs.c (vect_update_misalignment_for_peel): Rename.
(vect_get_peeling_costs_all_drs): Create function.
(vect_peeling_hash_get_lowest_cost):
......
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