From patchwork Tue Dec 27 15:44:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Max Filippov X-Patchwork-Id: 1719706 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gcc.gnu.org (client-ip=8.43.85.97; helo=sourceware.org; envelope-from=gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org; receiver=) Authentication-Results: legolas.ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=gcc.gnu.org header.i=@gcc.gnu.org header.a=rsa-sha256 header.s=default header.b=Lc9cV45X; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-384) server-digest SHA384) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4NhJrT0vhnz23dD for ; 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Tue, 27 Dec 2022 07:44:13 -0800 (PST) Received: from octofox.hsd1.ca.comcast.net ([2601:641:401:1d20:48c3:ad37:b390:9bd1]) by smtp.gmail.com with ESMTPSA id 5-20020a630705000000b0047911890728sm7444711pgh.79.2022.12.27.07.44.12 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 27 Dec 2022 07:44:12 -0800 (PST) To: gcc-patches@gcc.gnu.org Cc: Takayuki 'January June' Suwa Subject: [COMMITTED 2/4] xtensa: Clean up xtensa_expand_prologue Date: Tue, 27 Dec 2022 07:44:02 -0800 Message-Id: <20221227154404.111654-2-jcmvbkbc@gmail.com> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20221227154404.111654-1-jcmvbkbc@gmail.com> References: <20221227154404.111654-1-jcmvbkbc@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-8.9 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, FROM_LOCAL_NOVOWEL, GIT_PATCH_0, HK_RANDOM_ENVFROM, HK_RANDOM_FROM, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Max Filippov via Gcc-patches From: Max Filippov Reply-To: Max Filippov Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Sender: "Gcc-patches" From: Takayuki 'January June' Suwa gcc/ChangeLog: * config/xtensa/xtensa.cc (xtensa_expand_prologue): Modify to exit the inspection loops as soon as the necessity of stack pointer is found. --- gcc/config/xtensa/xtensa.cc | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/gcc/config/xtensa/xtensa.cc b/gcc/config/xtensa/xtensa.cc index 178d16a78462..709b0d52d069 100644 --- a/gcc/config/xtensa/xtensa.cc +++ b/gcc/config/xtensa/xtensa.cc @@ -3327,12 +3327,18 @@ xtensa_expand_prologue (void) ref; ref = DF_REF_NEXT_REG (ref)) if (DF_REF_CLASS (ref) == DF_REF_REGULAR && NONJUMP_INSN_P (DF_REF_INSN (ref))) - stack_pointer_needed = true; + { + stack_pointer_needed = true; + break; + } /* Check if callee-saved registers really need saving to the stack. */ if (!stack_pointer_needed) for (regno = 0; regno < FIRST_PSEUDO_REGISTER; ++regno) if (xtensa_call_save_reg (regno)) - stack_pointer_needed = true; + { + stack_pointer_needed = true; + break; + } cfun->machine->inhibit_logues_a1_adjusts = !stack_pointer_needed;