--- old/src/hotspot/os_cpu/solaris_x86/count_trailing_zeros_solaris_x86.hpp 2020-05-01 02:30:02.528785367 -0700 +++ /dev/null 2020-03-09 18:57:19.455001459 -0700 @@ -1,37 +0,0 @@ -/* - * Copyright (c) 2017, 2019, Oracle and/or its affiliates. All rights reserved. - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * This code is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License version 2 only, as - * published by the Free Software Foundation. - * - * This code is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * version 2 for more details (a copy is included in the LICENSE file that - * accompanied this code). - * - * You should have received a copy of the GNU General Public License version - * 2 along with this work; if not, write to the Free Software Foundation, - * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. - * - * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - * - */ - -#ifndef OS_CPU_SOLARIS_X86_COUNT_TRAILING_ZEROS_SOLARIS_X86_HPP -#define OS_CPU_SOLARIS_X86_COUNT_TRAILING_ZEROS_SOLARIS_X86_HPP - -#include "utilities/globalDefinitions.hpp" - -inline unsigned count_trailing_zeros(uintx x) { - assert(x != 0, "precondition"); - uintx result; - __asm__(" rep bsfq %1, %0" : "=r" (result) : "rm" (x)); - return result; -} - -#endif // OS_CPU_SOLARIS_X86_COUNT_TRAILING_ZEROS_SOLARIS_X86_HPP