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Tue, 24 Jun 2025 14:13:32 +0000 Date: Tue, 24 Jun 2025 15:13:27 +0100 From: Bruce Richardson <bruce.richardson@intel.com> To: <dev@dpdk.org> CC: <Vipin.Varghese@amd.com> Subject: Re: [PATCH v5] build: reduce use of AVX compiler flags Message-ID: <aFqyhwuDFvHMPEkC@bricha3-mobl1.ger.corp.intel.com> References: <20250325172215.3360590-1-bruce.richardson@intel.com> <20250611105310.472523-1-bruce.richardson@intel.com> Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline In-Reply-To: <20250611105310.472523-1-bruce.richardson@intel.com> X-ClientProxiedBy: DU7PR01CA0039.eurprd01.prod.exchangelabs.com (2603:10a6:10:50e::12) To DS0PR11MB7309.namprd11.prod.outlook.com (2603:10b6:8:13e::17) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS0PR11MB7309:EE_|IA0PR11MB7815:EE_ X-MS-Office365-Filtering-Correlation-Id: cd62adb1-ed3b-49f7-1a41-08ddb3294ca0 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|376014|1800799024|366016; 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Instead, when > the default flags produce the desired output, just use them unmodified, > and don't bother adding in extra enabling flags for AVX2 or AVX-512. > > Depends-on: series-35421 ("doc/linux_gsg: update recommended compiler versions") > > Signed-off-by: Bruce Richardson <bruce.richardson@intel.com> > --- > v5: Use "x86-64-v4" arch, when available, in place of "skylake-avx512" > > V4: Fix error flagged by CI with clang builds without AVX512 - change > "cc_avx512_args" to correct "cc_avx512_flags" > > V3: put in version check to work around an issues with some meson > versions, (hopefully) allowing builds to pass in all CIs. The > printout of the extra flags now only happens with meson >= 0.60.2 > > V2: dropped the doc update for the minimum compiler version. Based on > discussion, that version bump is larger than proposed in RFC and is > now a separate patch/series [series referenced above] > --- > config/x86/meson.build | 34 +++++++++++++++++++++++----------- > drivers/meson.build | 9 +-------- > lib/meson.build | 9 +-------- > 3 files changed, 25 insertions(+), 27 deletions(-) > Recheck-request: rebase=main, iol-unit-amd64-testing