From owner-svn-src-head@freebsd.org Fri Apr 17 18:24:48 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 183EC2C4279; Fri, 17 Apr 2020 18:24:48 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 493kyl7005z4Q08; Fri, 17 Apr 2020 18:24:47 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id EB35A26BD2; Fri, 17 Apr 2020 18:24:47 +0000 (UTC) (envelope-from jhb@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id 03HIOlLJ029874; Fri, 17 Apr 2020 18:24:47 GMT (envelope-from jhb@FreeBSD.org) Received: (from jhb@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id 03HIOl13029873; Fri, 17 Apr 2020 18:24:47 GMT (envelope-from jhb@FreeBSD.org) Message-Id: <202004171824.03HIOl13029873@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: jhb set sender to jhb@FreeBSD.org using -f From: John Baldwin Date: Fri, 17 Apr 2020 18:24:47 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r360050 - head/sys/mips/include X-SVN-Group: head X-SVN-Commit-Author: jhb X-SVN-Commit-Paths: head/sys/mips/include X-SVN-Commit-Revision: 360050 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Apr 2020 18:24:48 -0000 Author: jhb Date: Fri Apr 17 18:24:47 2020 New Revision: 360050 URL: https://svnweb.freebsd.org/changeset/base/360050 Log: Use the right type for 64-bit coprocessor registers. The use of "int" here caused the compiler to believe that it needs to insert a "sll $n, $n, 0" to sign extend as part of the implicit cast to uint64_t. Submitted by: Nathaniel Filardo Reviewed by: brooks, arichardson Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24457 Modified: head/sys/mips/include/cpufunc.h Modified: head/sys/mips/include/cpufunc.h ============================================================================== --- head/sys/mips/include/cpufunc.h Fri Apr 17 18:22:37 2020 (r360049) +++ head/sys/mips/include/cpufunc.h Fri Apr 17 18:24:47 2020 (r360050) @@ -125,7 +125,7 @@ breakpoint(void) static __inline uint64_t \ mips_rd_ ## n (void) \ { \ - int v0; \ + uint64_t v0; \ __asm __volatile ("dmfc0 %[v0], $"__XSTRING(r)";" \ : [v0] "=&r"(v0)); \ mips_barrier(); \ @@ -147,7 +147,7 @@ mips_wr_ ## n (uint64_t a0) \ static __inline uint64_t \ mips_rd_ ## n(void) \ { \ - int v0; \ + uint64_t v0; \ __asm __volatile ("dmfc0 %[v0], $"__XSTRING(r)", "__XSTRING(s)";" \ : [v0] "=&r"(v0)); \ mips_barrier(); \ @@ -190,7 +190,7 @@ MIPS_RW64_COP0(xcontext, MIPS_COP_0_TLB_XCONTEXT); static __inline uint32_t \ mips_rd_ ## n (void) \ { \ - int v0; \ + uint32_t v0; \ __asm __volatile ("mfc0 %[v0], $"__XSTRING(r)";" \ : [v0] "=&r"(v0)); \ mips_barrier(); \ @@ -212,7 +212,7 @@ mips_wr_ ## n (uint32_t a0) \ static __inline uint32_t \ mips_rd_ ## n(void) \ { \ - int v0; \ + uint32_t v0; \ __asm __volatile ("mfc0 %[v0], $"__XSTRING(r)", "__XSTRING(s)";" \ : [v0] "=&r"(v0)); \ mips_barrier(); \