From 8dbcc14aa053cc13c5f24493230575e60ffc3472 Mon Sep 17 00:00:00 2001 From: Fei Yang Date: Thu, 18 Jun 2020 15:52:40 +0800 Subject: [PATCH] vect: Use vect_relevant_for_alignment_p consistently Minor code refactorings in tree-vect-data-refs.c. When trying loop peeling to force alignment, call vect_relevant_for_alignment_p to filter out data references in the loop whose alignment is irrelevant. 2020-06-18 Felix Yang gcc/ * tree-vect-data-refs.c (vect_enhance_data_refs_alignment): Call vect_relevant_for_alignment_p to filter out data references in the loop whose alignment is irrelevant when trying loop peeling to force alignment. --- gcc/tree-vect-data-refs.c | 29 +++-------------------------- 1 file changed, 3 insertions(+), 26 deletions(-) diff --git a/gcc/tree-vect-data-refs.c b/gcc/tree-vect-data-refs.c index 4164bf4743c..2365a3925bb 100644 --- a/gcc/tree-vect-data-refs.c +++ b/gcc/tree-vect-data-refs.c @@ -1722,29 +1722,10 @@ vect_enhance_data_refs_alignment (loop_vec_info loop_vinfo) FOR_EACH_VEC_ELT (datarefs, i, dr) { dr_vec_info *dr_info = loop_vinfo->lookup_dr (dr); - stmt_vec_info stmt_info = dr_info->stmt; - - if (!STMT_VINFO_RELEVANT_P (stmt_info)) - continue; - - /* For interleaving, only the alignment of the first access - matters. */ - if (STMT_VINFO_GROUPED_ACCESS (stmt_info) - && DR_GROUP_FIRST_ELEMENT (stmt_info) != stmt_info) - continue; - - /* For scatter-gather or invariant accesses there is nothing - to enhance. */ - if (STMT_VINFO_GATHER_SCATTER_P (stmt_info) - || integer_zerop (DR_STEP (dr))) - continue; - - /* Strided accesses perform only component accesses, alignment is - irrelevant for them. */ - if (STMT_VINFO_STRIDED_P (stmt_info) - && !STMT_VINFO_GROUPED_ACCESS (stmt_info)) + if (!vect_relevant_for_alignment_p (dr_info)) continue; + stmt_vec_info stmt_info = dr_info->stmt; supportable_dr_alignment = vect_supportable_dr_alignment (loop_vinfo, dr_info, true); do_peeling = vector_alignment_reachable_p (dr_info); @@ -2136,12 +2117,8 @@ vect_enhance_data_refs_alignment (loop_vec_info loop_vinfo) FOR_EACH_VEC_ELT (datarefs, i, dr) if (dr != dr0_info->dr) { - /* Strided accesses perform only component accesses, alignment - is irrelevant for them. */ dr_vec_info *dr_info = loop_vinfo->lookup_dr (dr); - stmt_info = dr_info->stmt; - if (STMT_VINFO_STRIDED_P (stmt_info) - && !STMT_VINFO_GROUPED_ACCESS (stmt_info)) + if (!vect_relevant_for_alignment_p (dr_info)) continue; vect_update_misalignment_for_peel (dr_info, dr0_info, npeel); -- 2.19.1