From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CAF3AC433DF for ; Wed, 27 May 2020 13:54:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B02A7207D8 for ; Wed, 27 May 2020 13:54:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2388963AbgE0Ny2 (ORCPT ); Wed, 27 May 2020 09:54:28 -0400 Received: from mout.kundenserver.de ([212.227.126.133]:44519 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2388949AbgE0NyY (ORCPT ); Wed, 27 May 2020 09:54:24 -0400 Received: from threadripper.lan ([149.172.98.151]) by mrelayeu.kundenserver.de (mreue012 [212.227.15.129]) with ESMTPA (Nemesis) id 1MYLqs-1jYsGf049q-00VMV5; Wed, 27 May 2020 15:53:55 +0200 From: Arnd Bergmann To: Bill Metzenthen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , x86@kernel.org Cc: Arnd Bergmann , "H. Peter Anvin" , Jiri Slaby , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com Subject: [PATCH] x86: math-emu: fix up 'cmp' insn for clang ias Date: Wed, 27 May 2020 15:53:46 +0200 Message-Id: <20200527135352.1198078-1-arnd@arndb.de> X-Mailer: git-send-email 2.26.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:bSrmojBkHTfwlBXgReUiC68L/lv6zZjqVNBUHsNFg+IGhZRhrGV GkkV8WpHw22LMwMARAYsoD5KYA3pBnHFcoLH5dp/x2hSAMrGJi8dChPbY792apwXWnZd7qZ jIjJEhxCW7TyMCWq6e4TF4u20TGSW1z/lfJGlEqVJu6zfglnwR4k+xll6LtQsZjRrt0AYNY lMD3pl0DIQ5Nn1RISeDUg== X-UI-Out-Filterresults: notjunk:1;V03:K0:lnX7E2HrOZE=:FQJKTfvN7qUyJoPZ/9XhYF BHoBketx+AjcNfu8zISxSCiEuFElld5XxsZKyouO4UuxkVJX5UJbUSRBNSS2zPdcx1tqe1eYr 5lLfUjgr6K+z1suXLLiiJEWbR6VNaa90S33XThu00XuzJ4ZUfRW7i2A9WwwigAR3oR5jjnl0S 8qAzdChCzOarZwq1EmYdcZw5EYnrkNBgHLqnQurRz2wk3+XSDaJyF+AoXW1im396iIrM6XeyZ pim7zL+SIdCRqnCynq0Y0gqppBcselctb9eb4GldF8BznfGXzlWrzC0NDHjypcSZ+UF0aJ5SE mzqyq8Ut3RKvELOYDAEofKljsX7hcSP1wQWDutZn2pmadfNyg/5+bRwCV9xierE6Hl0KeKvPI B+p3ZQrTPf4wTxead11PdWu0QX4gxK6ie1cWxtKYF78QqZUY/RMiHQy8/IvB8BHPDoZez0kQS I8VBI3DtBqLDXR8Zr9j81ppkoEE9pNetsYgxp5RaRxxM9klNgnWm0xKKBDh8ea8mvTSH/d+iA RSbvbtp0x9Dsc1IJ2SIdSRcrwrsdHfe/cjdMnjoDkbq3FweSgHg/pvnIylD4Q1+kvH4yZ4tqO cdzTFxVzNauQka5xtd/67AW4eRtN05mA4mf2R3e+4S9az6jn6bYtdEia6AnMfY0Fa1FLQd9se YMi3qZvuywzqlFAuFEDjFs/lWWnyjyNyq9w1moyIlPNdWNE8xLijzCyxxZXJ1qloHg3Pp9kLo o35PzC6xAQXDjcxzCx3i7meueFIaU8Woyz3uad7d6wOb74hFhme11d1kd5mAfq2szTKiapUum 9s0OMIfFXXp18flKMpOEKpJlSZam6A25qkIIAEuKL8pCC7m/mI= Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The clang integrated assembler requires the 'cmp' instruction to have a length prefix here: arch/x86/math-emu/wm_sqrt.S:212:2: error: ambiguous instructions require an explicit suffix (could be 'cmpb', 'cmpw', or 'cmpl') cmp $0xffffffff,-24(%ebp) ^ Make this a 32-bit comparison, which it was clearly meant to be. Signed-off-by: Arnd Bergmann --- arch/x86/math-emu/wm_sqrt.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/math-emu/wm_sqrt.S b/arch/x86/math-emu/wm_sqrt.S index 3b2b58164ec1..40526dd85137 100644 --- a/arch/x86/math-emu/wm_sqrt.S +++ b/arch/x86/math-emu/wm_sqrt.S @@ -209,7 +209,7 @@ sqrt_stage_2_finish: #ifdef PARANOID /* It should be possible to get here only if the arg is ffff....ffff */ - cmp $0xffffffff,FPU_fsqrt_arg_1 + cmpl $0xffffffff,FPU_fsqrt_arg_1 jnz sqrt_stage_2_error #endif /* PARANOID */ -- 2.26.2