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Thu, 2 May 2024 12:18:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1714652318; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=7gNkL90ZSEcC++gayx3BVukWGz0XLWwOAkGG+k/Ymx0=; b=Eyvt+sGTcpEZCkN/ZuhbmRVyjKntMIWrYc08SCdzQOdLBzmEaAITVTuWhMVt8kfqlbTEE4 dq6lLr8aLnPtQfNvXH0/BHvRfhVMjWFTZYSBXVCnPHz1JhcTTZIKBEWzdQoi1RrcdOzpi/ q4HvD3l3+T57mZ+MMxOiNJo09n/8hmY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1714652318; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=7gNkL90ZSEcC++gayx3BVukWGz0XLWwOAkGG+k/Ymx0=; b=fhzAz/m83/0QFPtx2OhoMC3Ln6F5pwgHaafDdZvOjW7pW4vfUTjy7GRHfHk5QfGv235rxC SzPoiX1ndUemEjAA== Authentication-Results: smtp-out1.suse.de; none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1714652318; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=7gNkL90ZSEcC++gayx3BVukWGz0XLWwOAkGG+k/Ymx0=; b=Eyvt+sGTcpEZCkN/ZuhbmRVyjKntMIWrYc08SCdzQOdLBzmEaAITVTuWhMVt8kfqlbTEE4 dq6lLr8aLnPtQfNvXH0/BHvRfhVMjWFTZYSBXVCnPHz1JhcTTZIKBEWzdQoi1RrcdOzpi/ q4HvD3l3+T57mZ+MMxOiNJo09n/8hmY= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1714652318; h=from:from:reply-to:date:date:to:to:cc:mime-version:mime-version: content-type:content-type; bh=7gNkL90ZSEcC++gayx3BVukWGz0XLWwOAkGG+k/Ymx0=; b=fhzAz/m83/0QFPtx2OhoMC3Ln6F5pwgHaafDdZvOjW7pW4vfUTjy7GRHfHk5QfGv235rxC SzPoiX1ndUemEjAA== Date: Thu, 2 May 2024 14:18:38 +0200 (CEST) From: Richard Biener To: gcc-patches@gcc.gnu.org Subject: [PATCH] tree-optimization/114921 - _Float16 -> __bf16 isn't noop MIME-Version: 1.0 X-Spam-Score: -0.65 X-Spam-Level: X-Spamd-Result: default: False [-0.65 / 50.00]; MISSING_MID(2.50)[]; BAYES_HAM(-1.88)[94.30%]; NEURAL_HAM_LONG(-0.99)[-0.989]; NEURAL_HAM_SHORT(-0.18)[-0.905]; MIME_GOOD(-0.10)[text/plain]; MISSING_XM_UA(0.00)[]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; RCPT_COUNT_ONE(0.00)[1]; RCVD_COUNT_ZERO(0.00)[0]; FROM_HAS_DN(0.00)[]; FUZZY_BLOCKED(0.00)[rspamd.com]; FROM_EQ_ENVFROM(0.00)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; TO_DN_NONE(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[tree-vect-stmts.cc:url] X-Spam-Status: No, score=-10.5 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, MISSING_MID, 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: 2.1.30 Precedence: list List-Id: Gcc-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: gcc-patches-bounces+incoming=patchwork.ozlabs.org@gcc.gnu.org Message-Id: <20240502121902.D09193858426@sourceware.org> The vectorizer handles a _Float16 to __bf16 conversion through vectorizable_assignment, thinking it's a noop. The following fixes this by making the same-size check stricter, requiring the same vector component mode. Posted again for the arm CI PR tree-optimization/114921 * tree-vect-stmts.cc (vectorizable_assignment): Require same vector component modes for input and output. --- gcc/tree-vect-stmts.cc | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index f8d8636b139..adb6ef53254 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -5961,8 +5961,8 @@ vectorizable_assignment (vec_info *vinfo, || code == VIEW_CONVERT_EXPR) && (!vectype_in || maybe_ne (TYPE_VECTOR_SUBPARTS (vectype_in), nunits) - || maybe_ne (GET_MODE_SIZE (TYPE_MODE (vectype)), - GET_MODE_SIZE (TYPE_MODE (vectype_in))))) + || (TYPE_MODE (TREE_TYPE (vectype)) + != TYPE_MODE (TREE_TYPE (vectype_in))))) return false; if (VECTOR_BOOLEAN_TYPE_P (vectype) != VECTOR_BOOLEAN_TYPE_P (vectype_in))