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93bd021388
This refactors vect_supportable_dr_alignment to get the misalignment as input parameter which allows us to elide modifying/restoring of DR_MISALIGNMENT during alignment peeling analysis which eventually makes it more straight-forward to split out the negative step handling. 2021-10-19 Richard Biener <rguenther@suse.de> * tree-vectorizer.h (vect_supportable_dr_alignment): Add misalignment parameter. * tree-vect-data-refs.c (vect_get_peeling_costs_all_drs): Do not change DR_MISALIGNMENT in place, instead pass the adjusted misalignment to vect_supportable_dr_alignment. (vect_peeling_supportable): Likewise. (vect_peeling_hash_get_lowest_cost): Adjust. (vect_enhance_data_refs_alignment): Likewise. (vect_vfa_access_size): Likewise. (vect_supportable_dr_alignment): Add misalignment parameter and simplify. * tree-vect-stmts.c (get_negative_load_store_type): Adjust. (get_group_load_store_type): Likewise. (get_load_store_type): Likewise. |
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