From cf91b5997dec281e4b784c163d76d5be3e8569f6 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Fri, 12 Jul 2019 14:36:50 +0000 Subject: re PR tree-optimization/91145 (ICE: in vect_build_slp_tree_2, at tree-vect-slp.c:1143 with -march=skylake-avx512 -O3) 2019-07-12 Richard Biener PR tree-optimization/91145 * tree-vect-slp.c (vect_build_slp_tree_2): Fix reduction chain check. * gcc.dg/torture/pr91145.c: New testcase. From-SVN: r273445 --- gcc/tree-vect-slp.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'gcc/tree-vect-slp.c') diff --git a/gcc/tree-vect-slp.c b/gcc/tree-vect-slp.c index d172c3a..31f4519 100644 --- a/gcc/tree-vect-slp.c +++ b/gcc/tree-vect-slp.c @@ -1140,7 +1140,8 @@ vect_build_slp_tree_2 (vec_info *vinfo, FOR_EACH_VEC_ELT (stmts, i, other_info) { /* But for reduction chains only check on the first stmt. */ - if (REDUC_GROUP_FIRST_ELEMENT (other_info) + if (!STMT_VINFO_DATA_REF (other_info) + && REDUC_GROUP_FIRST_ELEMENT (other_info) && REDUC_GROUP_FIRST_ELEMENT (other_info) != stmt_info) continue; if (STMT_VINFO_DEF_TYPE (other_info) != def_type) -- cgit v1.1