Message ID | 1891027.TnL9IUE11E@fomalhaut |
---|---|
State | New |
Headers | show
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Mon, 28 Sep 2020 11:36:58 -0700 (PDT) Received: from fomalhaut.localnet ([2a01:e0a:41b:9230:7f82:53f4:769e:54b6]) by smtp.gmail.com with ESMTPSA id l18sm2572405wrp.84.2020.09.28.11.36.56 for <gcc-patches@gcc.gnu.org> (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Mon, 28 Sep 2020 11:36:57 -0700 (PDT) From: Eric Botcazou <botcazou@adacore.com> X-Google-Original-From: Eric Botcazou <ebotcazou@adacore.com> To: gcc-patches@gcc.gnu.org Subject: [patch] Do not use doloop pattern with pragma Unroll Date: Mon, 28 Sep 2020 20:36:52 +0200 Message-ID: <1891027.TnL9IUE11E@fomalhaut> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="nextPart6370385.8rHZESirjr" Content-Transfer-Encoding: 7Bit X-Spam-Status: No, score=-9.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: gcc-patches@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-patches mailing list <gcc-patches.gcc.gnu.org> List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=unsubscribe> List-Archive: <https://gcc.gnu.org/pipermail/gcc-patches/> List-Post: <mailto:gcc-patches@gcc.gnu.org> List-Help: <mailto:gcc-patches-request@gcc.gnu.org?subject=help> List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-patches>, <mailto:gcc-patches-request@gcc.gnu.org?subject=subscribe> Errors-To: gcc-patches-bounces@gcc.gnu.org Sender: "Gcc-patches" <gcc-patches-bounces@gcc.gnu.org> |
Series |
Do not use doloop pattern with pragma Unroll
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diff --git a/gcc/tree-ssa-loop-ivopts.c b/gcc/tree-ssa-loop-ivopts.c index 5acf044161c..da04dd5ba0a 100644 --- a/gcc/tree-ssa-loop-ivopts.c +++ b/gcc/tree-ssa-loop-ivopts.c @@ -7947,6 +7947,9 @@ analyze_and_mark_doloop_use (struct ivopts_data *data) if (!flag_branch_on_count_reg) return; + if (data->current_loop->unroll == USHRT_MAX) + return; + if (!generic_predict_doloop_p (data)) return;