1 /* 2 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 package sha.predicate; 25 26 import jdk.test.lib.Platform; 27 import jdk.test.lib.cli.predicate.AndPredicate; 28 import jdk.test.lib.cli.predicate.CPUSpecificPredicate; 29 import jdk.test.lib.cli.predicate.OrPredicate; 30 import sun.hotspot.WhiteBox; 31 32 import java.util.function.BooleanSupplier; 33 34 /** 35 * Helper class aimed to provide predicates on availability of SHA-related 36 * CPU instructions and intrinsics. 37 */ 38 public class IntrinsicPredicates { 39 private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox(); 40 private static final long TIERED_MAX_LEVEL = 4L; 41 /** 42 * Boolean supplier that check if any method could be compiled by C2. 43 * Method potentially could be compiled by C2 if Server VM is used and 44 * either tiered compilation is disabled or TIERED_MAX_LEVEL tier is 45 * reachable. 46 * 47 * Please don't place this definition after SHA*_INTRINSICS_AVAILABLE 48 * definitions. Otherwise its value will be {@code null} at the time when 49 * all dependent fields will be initialized. 50 */ 51 private static final BooleanSupplier COMPILABLE_BY_C2 = () -> { 52 boolean isTiered = IntrinsicPredicates.WHITE_BOX.getBooleanVMFlag( 53 "TieredCompilation"); 54 long tieredMaxLevel = IntrinsicPredicates.WHITE_BOX.getIntxVMFlag( 55 "TieredStopAtLevel"); 56 boolean maxLevelIsReachable = (tieredMaxLevel 57 == IntrinsicPredicates.TIERED_MAX_LEVEL); 58 return Platform.isServer() && (!isTiered || maxLevelIsReachable); 59 }; 60 61 public static final BooleanSupplier SHA1_INSTRUCTION_AVAILABLE 62 = new CPUSpecificPredicate("sparc.*", new String[] { "sha1" }, 63 null); 64 65 public static final BooleanSupplier SHA256_INSTRUCTION_AVAILABLE 66 = new CPUSpecificPredicate("sparc.*", new String[] { "sha256" }, 67 null); 68 69 public static final BooleanSupplier SHA512_INSTRUCTION_AVAILABLE 70 = new CPUSpecificPredicate("sparc.*", new String[] { "sha512" }, 71 null); 72 73 public static final BooleanSupplier ANY_SHA_INSTRUCTION_AVAILABLE 74 = new OrPredicate(IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE, 75 new OrPredicate( 76 IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE, 77 IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE)); 78 79 public static final BooleanSupplier SHA1_INTRINSICS_AVAILABLE 80 = new AndPredicate(new AndPredicate( 81 IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE, 82 IntrinsicPredicates.COMPILABLE_BY_C2), 83 IntrinsicPredicates.booleanOptionValue("UseSHA1Intrinsics")); 84 85 public static final BooleanSupplier SHA256_INTRINSICS_AVAILABLE 86 = new AndPredicate(new AndPredicate( 87 IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE, 88 IntrinsicPredicates.COMPILABLE_BY_C2), 89 IntrinsicPredicates.booleanOptionValue("UseSHA256Intrinsics")); 90 91 public static final BooleanSupplier SHA512_INTRINSICS_AVAILABLE 92 = new AndPredicate(new AndPredicate( 93 IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE, 94 IntrinsicPredicates.COMPILABLE_BY_C2), 95 IntrinsicPredicates.booleanOptionValue("UseSHA512Intrinsics")); 96 97 private static BooleanSupplier booleanOptionValue(String option) { 98 return () -> IntrinsicPredicates.WHITE_BOX.getBooleanVMFlag(option); 99 } 100 101 private IntrinsicPredicates() { 102 } 103 }