1 /* 2 * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2012, 2015 SAP AG. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #include "precompiled.hpp" 27 #include "opto/compile.hpp" 28 #include "opto/node.hpp" 29 #include "runtime/globals.hpp" 30 #include "utilities/debug.hpp" 31 32 // processor dependent initialization for ppc 33 34 void Compile::pd_compiler2_init() { 35 36 // Power7 and later 37 if (PowerArchitecturePPC64 > 6) { 38 if (FLAG_IS_DEFAULT(UsePopCountInstruction)) { 39 FLAG_SET_ERGO(bool, UsePopCountInstruction, true); 40 } 41 } 42 43 if (PowerArchitecturePPC64 == 6) { 44 if (FLAG_IS_DEFAULT(InsertEndGroupPPC64)) { 45 FLAG_SET_ERGO(bool, InsertEndGroupPPC64, true); 46 } 47 } 48 49 if (!VM_Version::has_isel() && FLAG_IS_DEFAULT(ConditionalMoveLimit)) { 50 FLAG_SET_ERGO(intx, ConditionalMoveLimit, 0); 51 } 52 53 if (OptimizeFill) { 54 warning("OptimizeFill is not supported on this CPU."); 55 FLAG_SET_DEFAULT(OptimizeFill, false); 56 } 57 58 }