From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1880) id CAC9A3858C20; Tue, 16 Aug 2022 05:18:56 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org CAC9A3858C20 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Max Filippov To: gcc-cvs@gcc.gnu.org Subject: [gcc r13-2060] xtensa: Turn on -fsplit-wide-types-early by default X-Act-Checkin: gcc X-Git-Author: Takayuki 'January June' Suwa X-Git-Refname: refs/heads/master X-Git-Oldrev: ec63a946ccb7ab16efd0830e5580351f2adff3db X-Git-Newrev: a2ff389099c325bc1244b1d72744a18c5fa6fda3 Message-Id: <20220816051856.CAC9A3858C20@sourceware.org> Date: Tue, 16 Aug 2022 05:18:56 +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: Tue, 16 Aug 2022 05:18:56 -0000 https://gcc.gnu.org/g:a2ff389099c325bc1244b1d72744a18c5fa6fda3 commit r13-2060-ga2ff389099c325bc1244b1d72744a18c5fa6fda3 Author: Takayuki 'January June' Suwa Date: Sun Aug 14 18:29:33 2022 +0900 xtensa: Turn on -fsplit-wide-types-early by default Since GCC10, the "subreg2" optimization pass was no longer tied to enabling "subreg1" unless -fsplit-wide-types-early was turned on (PR88233). However on the Xtensa port, the lack of "subreg2" can degrade the quality of the output code, especially for those that produce many D[FC]mode pseudos. This patch turns on -fsplit-wide-types-early by default in order to restore the previous behavior. gcc/ChangeLog: * common/config/xtensa/xtensa-common.cc (xtensa_option_optimization_table): Add OPT_fsplit_wide_types_early for OPT_LEVELS_ALL in order to restore pre-GCC10 behavior. Diff: --- gcc/common/config/xtensa/xtensa-common.cc | 2 ++ 1 file changed, 2 insertions(+) diff --git a/gcc/common/config/xtensa/xtensa-common.cc b/gcc/common/config/xtensa/xtensa-common.cc index fbbe9b0aad7..0f27763aa71 100644 --- a/gcc/common/config/xtensa/xtensa-common.cc +++ b/gcc/common/config/xtensa/xtensa-common.cc @@ -34,6 +34,8 @@ static const struct default_options xtensa_option_optimization_table[] = assembler, so GCC cannot do a good job of reordering blocks. Do not enable reordering unless it is explicitly requested. */ { OPT_LEVELS_ALL, OPT_freorder_blocks, NULL, 0 }, + /* Split multi-word types early (pre-GCC10 behavior). */ + { OPT_LEVELS_ALL, OPT_fsplit_wide_types_early, NULL, 1 }, { OPT_LEVELS_NONE, 0, NULL, 0 } };