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r248677 - in /trunk/gcc: ChangeLog tree-vect-da...
- From: krebbel at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Tue, 30 May 2017 10:57:53 -0000
- Subject: r248677 - in /trunk/gcc: ChangeLog tree-vect-da...
Author: krebbel
Date: Tue May 30 10:57:53 2017
New Revision: 248677
URL: https://gcc.gnu.org/viewcvs?rev=248677&root=gcc&view=rev
Log:
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.
Modified:
trunk/gcc/ChangeLog
trunk/gcc/tree-vect-data-refs.c