fzhinkin@7142: /*
fzhinkin@7142:  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
fzhinkin@7142:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
fzhinkin@7142:  *
fzhinkin@7142:  * This code is free software; you can redistribute it and/or modify it
fzhinkin@7142:  * under the terms of the GNU General Public License version 2 only, as
fzhinkin@7142:  * published by the Free Software Foundation.
fzhinkin@7142:  *
fzhinkin@7142:  * This code is distributed in the hope that it will be useful, but WITHOUT
fzhinkin@7142:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
fzhinkin@7142:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
fzhinkin@7142:  * version 2 for more details (a copy is included in the LICENSE file that
fzhinkin@7142:  * accompanied this code).
fzhinkin@7142:  *
fzhinkin@7142:  * You should have received a copy of the GNU General Public License version
fzhinkin@7142:  * 2 along with this work; if not, write to the Free Software Foundation,
fzhinkin@7142:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
fzhinkin@7142:  *
fzhinkin@7142:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
fzhinkin@7142:  * or visit www.oracle.com if you need additional information or have any
fzhinkin@7142:  * questions.
fzhinkin@7142:  */
fzhinkin@7142: 
fzhinkin@7142: package sha.predicate;
fzhinkin@7142: 
fzhinkin@7142: import com.oracle.java.testlibrary.Platform;
fzhinkin@7142: import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
fzhinkin@7142: import com.oracle.java.testlibrary.cli.predicate.CPUSpecificPredicate;
fzhinkin@7142: import com.oracle.java.testlibrary.cli.predicate.OrPredicate;
fzhinkin@7142: import sun.hotspot.WhiteBox;
fzhinkin@7142: 
fzhinkin@7142: import java.util.function.BooleanSupplier;
fzhinkin@7142: 
fzhinkin@7142: /**
fzhinkin@7142:  * Helper class aimed to provide predicates on availability of SHA-related
fzhinkin@7142:  * CPU instructions and intrinsics.
fzhinkin@7142:  */
fzhinkin@7142: public class IntrinsicPredicates {
fzhinkin@7142:     private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
fzhinkin@7142:     private static final long TIERED_MAX_LEVEL = 4L;
fzhinkin@7142:     /**
fzhinkin@7142:      * Boolean supplier that check if any method could be compiled by C2.
fzhinkin@7142:      * Method potentially could be compiled by C2 if Server VM is used and
fzhinkin@7142:      * either tiered compilation is disabled or TIERED_MAX_LEVEL tier is
fzhinkin@7142:      * reachable.
fzhinkin@7142:      *
fzhinkin@7142:      * Please don't place this definition after SHA*_INTRINSICS_AVAILABLE
fzhinkin@7142:      * definitions. Otherwise its value will be {@code null} at the time when
fzhinkin@7142:      * all dependent fields will be initialized.
fzhinkin@7142:      */
fzhinkin@7142:     private static final BooleanSupplier COMPILABLE_BY_C2 = () -> {
fzhinkin@7142:         boolean isTiered = IntrinsicPredicates.WHITE_BOX.getBooleanVMFlag(
fzhinkin@7142:                 "TieredCompilation");
fzhinkin@7142:         long tieredMaxLevel = IntrinsicPredicates.WHITE_BOX.getIntxVMFlag(
fzhinkin@7142:                 "TieredStopAtLevel");
fzhinkin@7142:         boolean maxLevelIsReachable = (tieredMaxLevel
fzhinkin@7142:                 == IntrinsicPredicates.TIERED_MAX_LEVEL);
fzhinkin@7142:         return Platform.isServer() && (!isTiered || maxLevelIsReachable);
fzhinkin@7142:     };
fzhinkin@7142: 
fzhinkin@7142:     public static final BooleanSupplier SHA1_INSTRUCTION_AVAILABLE
fzhinkin@7142:             = new CPUSpecificPredicate("sparc.*", new String[] { "sha1" },
fzhinkin@7142:                     null);
fzhinkin@7142: 
fzhinkin@7142:     public static final BooleanSupplier SHA256_INSTRUCTION_AVAILABLE
ogatak@9713:             = new OrPredicate(new CPUSpecificPredicate("sparc.*",   new String[] { "sha256" },
ogatak@9713:                                                        null),
ogatak@9713:               new OrPredicate(new CPUSpecificPredicate("ppc64.*",   new String[] { "sha"    },
ogatak@9713:                                                        null),
ogatak@9713:                               new CPUSpecificPredicate("ppc64le.*", new String[] { "sha"    },
ogatak@9713:                                                        null)));
fzhinkin@7142: 
fzhinkin@7142:     public static final BooleanSupplier SHA512_INSTRUCTION_AVAILABLE
ogatak@9713:             = new OrPredicate(new CPUSpecificPredicate("sparc.*",   new String[] { "sha512" },
ogatak@9713:                                                        null),
ogatak@9713:               new OrPredicate(new CPUSpecificPredicate("ppc64.*",   new String[] { "sha"    },
ogatak@9713:                                                        null),
ogatak@9713:                               new CPUSpecificPredicate("ppc64le.*", new String[] { "sha"    },
ogatak@9713:                                                        null)));
fzhinkin@7142: 
fzhinkin@7142:     public static final BooleanSupplier ANY_SHA_INSTRUCTION_AVAILABLE
fzhinkin@7142:             = new OrPredicate(IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE,
fzhinkin@7142:                     new OrPredicate(
fzhinkin@7142:                             IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE,
fzhinkin@7142:                             IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE));
fzhinkin@7142: 
fzhinkin@7142:     public static final BooleanSupplier SHA1_INTRINSICS_AVAILABLE
fzhinkin@7142:             = new AndPredicate(new AndPredicate(
fzhinkin@7142:                     IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE,
fzhinkin@7142:                     IntrinsicPredicates.COMPILABLE_BY_C2),
fzhinkin@7142:                 IntrinsicPredicates.booleanOptionValue("UseSHA1Intrinsics"));
fzhinkin@7142: 
fzhinkin@7142:     public static final BooleanSupplier SHA256_INTRINSICS_AVAILABLE
fzhinkin@7142:             = new AndPredicate(new AndPredicate(
fzhinkin@7142:                     IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE,
fzhinkin@7142:                     IntrinsicPredicates.COMPILABLE_BY_C2),
fzhinkin@7142:                 IntrinsicPredicates.booleanOptionValue("UseSHA256Intrinsics"));
fzhinkin@7142: 
fzhinkin@7142:     public static final BooleanSupplier SHA512_INTRINSICS_AVAILABLE
fzhinkin@7142:             = new AndPredicate(new AndPredicate(
fzhinkin@7142:                     IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE,
fzhinkin@7142:                     IntrinsicPredicates.COMPILABLE_BY_C2),
fzhinkin@7142:                 IntrinsicPredicates.booleanOptionValue("UseSHA512Intrinsics"));
fzhinkin@7142: 
fzhinkin@7142:     private static BooleanSupplier booleanOptionValue(String option) {
fzhinkin@7142:         return () -> IntrinsicPredicates.WHITE_BOX.getBooleanVMFlag(option);
fzhinkin@7142:     }
fzhinkin@7142: 
fzhinkin@7142:     private IntrinsicPredicates() {
fzhinkin@7142:     }
fzhinkin@7142: }