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Received: from DU2PR04MB8790.eurprd04.prod.outlook.com (2603:10a6:10:2e1::23) by AM7PR04MB7095.eurprd04.prod.outlook.com (2603:10a6:20b:11c::21) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.6977.16; Tue, 7 Nov 2023 15:43:36 +0000 Received: from DU2PR04MB8790.eurprd04.prod.outlook.com ([fe80::eb8e:fa24:44c1:5d44]) by DU2PR04MB8790.eurprd04.prod.outlook.com ([fe80::eb8e:fa24:44c1:5d44%3]) with mapi id 15.20.6977.017; Tue, 7 Nov 2023 15:43:36 +0000 Message-ID: <9e0e2fb4-d6cf-ce10-ba57-c52014c378ce@suse.com> Date: Tue, 7 Nov 2023 16:43:34 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Thunderbird/102.15.1 Subject: Re: [PATCH 1/8] Support APX GPR32 with rex2 prefix Content-Language: en-US To: "Cui, Lili" Cc: "Lu, Hongjiu" , "ccoutant@gmail.com" , "binutils@sourceware.org" References: <20231102112911.2372810-1-lili.cui@intel.com> <20231102112911.2372810-2-lili.cui@intel.com> <9373c79d-85bb-15bd-4501-7634687d9a8e@suse.com> <9a6b01c3-4dd4-731e-d677-e19d092b16c4@suse.com> From: Jan Beulich In-Reply-To: Content-Type: text/plain; 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I will try to find a list for AMD-only insns. > > pextrw, 0xfc5, SSE|3dnowA, Modrm|IgnoreSize|No_bSuf|No_wSuf|No_sSuf|NoRex64, { Imm8, RegMMX, Reg32|Reg64 } I mean we need to carefully consider whether to add NoEgpr to AMD-only insns. As mentioned before there are downsides to either approach. Jan