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Ip=[63.35.35.123]; Helo=[64aa7808-outbound-1.mta.getcheckrecipient.com] X-MS-Exchange-CrossTenant-AuthSource: AM4PEPF00027A60.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DB9PR08MB8651 X-Spam-Status: No, score=-6.4 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, FORGED_SPF_HELO, KAM_DMARC_NONE, KAM_SHORT, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H2, SPF_HELO_PASS, SPF_NONE, TXREP, 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 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+ouuuleilei=gmail.com@gcc.gnu.org X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780108340457553150 X-GMAIL-MSGID: 1780108340457553150 This series adds support for function multiversioning on aarch64. There are a few minor issues in patch 2/3, that I intend to fix in future versions or follow-up patches. I also have some open questions about the correctness of existing function multiversioning implementations [1], that could affect some details of this patch series. Patches 1/3 and 2/3 both pass regression testing on x86. Patch 2/3 requires adding function multiversioning tests to aarch64, which I haven't included yet. Patch 3/3 demonstrates a potential approach for improving consistency of symbol naming between target_clones and target/target_version multiversioning, but would require agreement on how to resolve some of the issues discussed in [1]. Thanks, Andrew [1] https://gcc.gnu.org/pipermail/gcc/2023-October/242686.html