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Tue, 30 Aug 2022 13:42:27 +0000 From: Richard Sandiford To: Xi Ruoyao via Gcc-patches Mail-Followup-To: Xi Ruoyao via Gcc-patches ,Lulu Cheng , Xi Ruoyao , Jinyang He , Chenghua Xu , Huacai Chen , Youling Tang , Wang Xuerui , richard.sandiford@arm.com Cc: Lulu Cheng , Xi Ruoyao , Jinyang He , Chenghua Xu , Huacai Chen , Youling Tang , Wang Xuerui Subject: Re: LoongArch: add model attribute References: Date: Tue, 30 Aug 2022 14:42:25 +0100 In-Reply-To: (Xi Ruoyao via Gcc-patches's message of "Tue, 23 Aug 2022 22:51:45 +0800") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/26.3 (gnu/linux) Content-Type: text/plain X-ClientProxiedBy: LNXP123CA0009.GBRP123.PROD.OUTLOOK.COM (2603:10a6:600:d2::21) To DBAPR08MB5589.eurprd08.prod.outlook.com (2603:10a6:10:1a2::23) MIME-Version: 1.0 X-MS-Office365-Filtering-Correlation-Id: 30c0c75f-9bbe-4d6a-5fac-08da8a8d7f27 X-MS-TrafficTypeDiagnostic: AM8PR08MB6500:EE_|DBAEUR03FT054:EE_|VE1PR08MB4845:EE_ x-checkrecipientrouted: true NoDisclaimer: true X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam-Untrusted: BCL:0; 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X-OriginatorOrg: arm.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 30 Aug 2022 13:42:35.4655 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 30c0c75f-9bbe-4d6a-5fac-08da8a8d7f27 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: DBAEUR03FT054.eop-EUR03.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR08MB4845 X-Spam-Status: No, score=-5.9 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,FORGED_SPF_HELO,KAM_DMARC_NONE,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: Xi Ruoyao via Gcc-patches writes: > Another attempt to make kernel module happy. > > One remaining issue: the patch cannot diagnostic some insane thing like > > int x __attribute__((model("normal"))); > int x __attribute__((model("extreme"))); > > It seems incredibly difficult to diagnose such thing: I can't figure out > any solution w/o invasion into the frontend. IA-64 model() only accepts > small so this is not a problem for them, and M32R model() also cannot > diagnose such error. > > Any suggestion is welcomed. You might be able to detect this in the merge_decl_attributes hook. Thanks, Richard