From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 1075) id 482283858D33; Wed, 17 Jan 2024 18:14:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 482283858D33 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1705515283; bh=mUotj1I5H8RVZ2NPg4R/+MHmdvoYVhY+9GlyJrHMRVU=; h=From:To:Subject:Date:From; b=er4QC+US3JJTQ7L7UwkLtig24/VHx6/q//FfRJ+2Uk2tl8R0UOuEZgc9seQ4y9VZf 3DFq9gUivWWMkIj+/YmOceKFZOtQQa1gjVpuWAQjiOvTkG9//qlIQUfaU59RYQctnX IJVyLuxl0jxaD12e9yF0oXkRnuaaXIbw6f+NFZTo= MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Jan Hubicka To: gcc-cvs@gcc.gnu.org Subject: [gcc r14-8190] Fix handling of X86_TUNE_AVOID_512FMA_CHAINS. X-Act-Checkin: gcc X-Git-Author: Jan Hubicka X-Git-Refname: refs/heads/master X-Git-Oldrev: 68cea2d32a9fd525154b6a48042e5835d4c5e371 X-Git-Newrev: f74dd70c3c7ef2ac19bca33de5fb03a73fbcd339 Message-Id: <20240117181443.482283858D33@sourceware.org> Date: Wed, 17 Jan 2024 18:14:43 +0000 (GMT) List-Id: https://gcc.gnu.org/g:f74dd70c3c7ef2ac19bca33de5fb03a73fbcd339 commit r14-8190-gf74dd70c3c7ef2ac19bca33de5fb03a73fbcd339 Author: Jan Hubicka Date: Wed Jan 17 19:14:16 2024 +0100 Fix handling of X86_TUNE_AVOID_512FMA_CHAINS. I have noticed quite bad pasto in handling of X86_TUNE_AVOID_512FMA_CHAINS. At the moment it is ignored, but X86_TUNE_AVOID_256FMA_CHAINS controls 512FMA too. This patch fixes it, we may want to re-check how that works on AVX512 machines. gcc/ChangeLog: * config/i386/i386-options.cc (ix86_option_override_internal): Fix handling of X86_TUNE_AVOID_512FMA_CHAINS. Diff: --- gcc/config/i386/i386-options.cc | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/gcc/config/i386/i386-options.cc b/gcc/config/i386/i386-options.cc index 3605c2c53fb..b6f634e9a32 100644 --- a/gcc/config/i386/i386-options.cc +++ b/gcc/config/i386/i386-options.cc @@ -3248,7 +3248,7 @@ ix86_option_override_internal (bool main_args_p, = (cf_protection_level) (opts->x_flag_cf_protection | CF_SET); } - if (ix86_tune_features [X86_TUNE_AVOID_256FMA_CHAINS]) + if (ix86_tune_features [X86_TUNE_AVOID_512FMA_CHAINS]) SET_OPTION_IF_UNSET (opts, opts_set, param_avoid_fma_max_bits, 512); else if (ix86_tune_features [X86_TUNE_AVOID_256FMA_CHAINS]) SET_OPTION_IF_UNSET (opts, opts_set, param_avoid_fma_max_bits, 256);