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Thu, 7 Mar 2024 19:09:00 +0000 From: Wilco Dijkstra To: "christer.solskogen@gmail.com" CC: "gcc-help@gcc.gnu.org" Subject: Re: mfix-cortex-a53 Thread-Topic: mfix-cortex-a53 Thread-Index: AQHacMDnKLOsUropGEeTEZUXKFf7gA== Date: Thu, 7 Mar 2024 19:09:00 +0000 Message-ID: Accept-Language: en-GB, en-US Content-Language: en-GB X-MS-Has-Attach: X-MS-TNEF-Correlator: msip_labels: Authentication-Results-Original: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=arm.com; x-ms-traffictypediagnostic: PAWPR08MB8982:EE_|PAVPR08MB9698:EE_|AM4PEPF00027A65:EE_|DU0PR08MB7884:EE_ X-MS-Office365-Filtering-Correlation-Id: 24083312-be2b-49b9-5a94-08dc3eda1167 x-checkrecipientrouted: true nodisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; X-Microsoft-Antispam-Message-Info-Original: 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 X-Forefront-Antispam-Report-Untrusted: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:PAWPR08MB8982.eurprd08.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230031)(376005)(38070700009);DIR:OUT;SFP:1101; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 07 Mar 2024 19:09:09.4921 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 24083312-be2b-49b9-5a94-08dc3eda1167 X-MS-Exchange-CrossTenant-Id: f34e5979-57d9-4aaa-ad4d-b122a662184d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=f34e5979-57d9-4aaa-ad4d-b122a662184d;Ip=[63.35.35.123];Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM4PEPF00027A65.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DU0PR08MB7884 X-Spam-Status: No, score=-4.5 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,KAM_DMARC_NONE,KAM_NUMSUBJECT,RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,TXREP,T_SCC_BODY_TEXT_LINE,UNPARSEABLE_RELAY autolearn=no autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: Hi,=0A= =0A= > Are there any good reason for NOT having them enabled?=0A= =0A= Yes, there is a codesize and performance impact (and it can be=0A= nasty if you have a hot loop that crosses a page).=0A= =0A= So only use the option if you're using Cortex-A53 and you're=0A= unlucky enough to have an early revision with the bug.=0A= It is absolutely not needed for any newer core.=0A= =0A= Cheers,=0A= Wilco=0A=