Mercurial > hg > graal-compiler
view src/cpu/ppc/vm/vm_version_ppc.hpp @ 21072:0ff1d79095ed
Guard for null pointer exception
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Tue, 21 Apr 2015 09:09:29 -0700 |
parents | 71a71b0bc844 |
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/* * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. * Copyright 2012, 2014 SAP AG. 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 CPU_PPC_VM_VM_VERSION_PPC_HPP #define CPU_PPC_VM_VM_VERSION_PPC_HPP #include "runtime/globals_extension.hpp" #include "runtime/vm_version.hpp" class VM_Version: public Abstract_VM_Version { protected: enum Feature_Flag { fsqrt, fsqrts, isel, lxarxeh, cmpb, popcntb, popcntw, fcfids, vand, dcba, num_features // last entry to count features }; enum Feature_Flag_Set { unknown_m = 0, fsqrt_m = (1 << fsqrt ), fsqrts_m = (1 << fsqrts ), isel_m = (1 << isel ), lxarxeh_m = (1 << lxarxeh), cmpb_m = (1 << cmpb ), popcntb_m = (1 << popcntb), popcntw_m = (1 << popcntw), fcfids_m = (1 << fcfids ), vand_m = (1 << vand ), dcba_m = (1 << dcba ), all_features_m = -1 }; static int _features; static int _measured_cache_line_size; static const char* _features_str; static bool _is_determine_features_test_running; static void print_features(); static void determine_features(); // also measures cache line size static void determine_section_size(); static void power6_micro_bench(); public: // Initialization static void initialize(); static bool is_determine_features_test_running() { return _is_determine_features_test_running; } // CPU instruction support static bool has_fsqrt() { return (_features & fsqrt_m) != 0; } static bool has_fsqrts() { return (_features & fsqrts_m) != 0; } static bool has_isel() { return (_features & isel_m) != 0; } static bool has_lxarxeh() { return (_features & lxarxeh_m) !=0; } static bool has_cmpb() { return (_features & cmpb_m) != 0; } static bool has_popcntb() { return (_features & popcntb_m) != 0; } static bool has_popcntw() { return (_features & popcntw_m) != 0; } static bool has_fcfids() { return (_features & fcfids_m) != 0; } static bool has_vand() { return (_features & vand_m) != 0; } static bool has_dcba() { return (_features & dcba_m) != 0; } static const char* cpu_features() { return _features_str; } static int get_cache_line_size() { return _measured_cache_line_size; } // Assembler testing static void allow_all(); static void revert(); }; #endif // CPU_PPC_VM_VM_VERSION_PPC_HPP