From 7b4cce4896cefefedba9545a9633585e086b7621 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=E9=83=91=E6=99=A8=E5=8D=89?= Date: Wed, 11 Sep 2024 18:26:22 +0800 Subject: [PATCH 1/2] Fix error with grouped_load merge in slp-transpose-vectorize (for IALR8B) --- gcc/tree-vect-slp.cc | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/gcc/tree-vect-slp.cc b/gcc/tree-vect-slp.cc index e3e246977..d4870de43 100644 --- a/gcc/tree-vect-slp.cc +++ b/gcc/tree-vect-slp.cc @@ -3807,7 +3807,11 @@ vect_slp_grouped_load_find (bb_vec_info bb_vinfo, vec &visited, these two grouped loads need to be merged. */ tree opb = get_op_base_address (first_element); unsigned int grp_size_b = DR_GROUP_SIZE (first_element); - if (opa == opb && grp_size_a == grp_size_b) + /* Ensure that the elements merge to load group meet the alignment condition (dr_misalignment) */ + HOST_WIDE_INT diff = 0; + diff = (TREE_INT_CST_LOW (DR_INIT (first_element->dr_aux.dr)) + - TREE_INT_CST_LOW (DR_INIT (merge_first_element->dr_aux.dr))); + if (opa == opb && grp_size_a == grp_size_b && diff >= 0) { res.safe_push (first_element); visited[i] = true; -- 2.33.0