From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1666) id C8E0D3857B84; Wed, 20 Jul 2022 12:05:53 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org C8E0D3857B84 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Richard Biener To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-1764] Improve SLP codegen, avoiding unnecessary TREE_ADDRESSABLE X-Act-Checkin: gcc X-Git-Author: Richard Biener X-Git-Refname: refs/heads/master X-Git-Oldrev: 78d5e125c008d87cb2e1c08a9ff2a02d4214ffcf X-Git-Newrev: 5f59d0f2d9fa921c04d75c39592e603cfa2b1324 Message-Id: <20220720120553.C8E0D3857B84@sourceware.org> Date: Wed, 20 Jul 2022 12:05:53 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 20 Jul 2022 12:05:53 -0000 https://gcc.gnu.org/g:5f59d0f2d9fa921c04d75c39592e603cfa2b1324 commit r13-1764-g5f59d0f2d9fa921c04d75c39592e603cfa2b1324 Author: Richard Biener Date: Wed Jul 20 11:02:03 2022 +0200 Improve SLP codegen, avoiding unnecessary TREE_ADDRESSABLE The following adjusts vectorizer code generation to avoid splitting out address increments for invariant addresses which causes objects to get TREE_ADDRESSABLE when not necessary. * tree-vect-data-refs.cc (bump_vector_ptr): Return an invariant updated address when the input was invariant. Diff: --- gcc/tree-vect-data-refs.cc | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/gcc/tree-vect-data-refs.cc b/gcc/tree-vect-data-refs.cc index 609cacc4971..b279a82551e 100644 --- a/gcc/tree-vect-data-refs.cc +++ b/gcc/tree-vect-data-refs.cc @@ -5195,6 +5195,14 @@ bump_vector_ptr (vec_info *vinfo, if (TREE_CODE (dataref_ptr) == SSA_NAME) new_dataref_ptr = copy_ssa_name (dataref_ptr); + else if (is_gimple_min_invariant (dataref_ptr)) + /* When possible avoid emitting a separate increment stmt that will + force the addressed object addressable. */ + return build1 (ADDR_EXPR, TREE_TYPE (dataref_ptr), + fold_build2 (MEM_REF, + TREE_TYPE (TREE_TYPE (dataref_ptr)), + dataref_ptr, + fold_convert (ptr_type_node, update))); else new_dataref_ptr = make_ssa_name (TREE_TYPE (dataref_ptr)); incr_stmt = gimple_build_assign (new_dataref_ptr, POINTER_PLUS_EXPR,