1 /*
2 * Copyright (c) 2014, 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 com.oracle.java.testlibrary.Platform;
27 import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
28 import com.oracle.java.testlibrary.cli.predicate.CPUSpecificPredicate;
29 import com.oracle.java.testlibrary.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 OrPredicate(
63 new CPUSpecificPredicate("sparc.*", new String[] { "sha1" },
64 null),
65 new CPUSpecificPredicate("aarch64", new String[] { "sha1" },
66 null));
67
68 public static final BooleanSupplier SHA256_INSTRUCTION_AVAILABLE
69 = new OrPredicate(new CPUSpecificPredicate("aarch64", new String[] { "sha256" },
70 null),
71 new OrPredicate(new CPUSpecificPredicate("sparc.*", new String[] { "sha256" },
72 null),
73 new OrPredicate(new CPUSpecificPredicate("ppc64.*", new String[] { "sha" },
74 null),
75 new CPUSpecificPredicate("ppc64le.*", new String[] { "sha" },
76 null))));
77
78 public static final BooleanSupplier SHA512_INSTRUCTION_AVAILABLE
79 = new OrPredicate(
80 new CPUSpecificPredicate("aarch64", new String[] { "sha512" },
81 null),
82 new OrPredicate(new CPUSpecificPredicate("sparc.*", new String[] { "sha512" },
83 null),
84 new OrPredicate(new CPUSpecificPredicate("ppc64.*", new String[] { "sha" },
85 null),
86 new CPUSpecificPredicate("ppc64le.*", new String[] { "sha" },
87 null))));
88
89 public static final BooleanSupplier ANY_SHA_INSTRUCTION_AVAILABLE
90 = new OrPredicate(IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE,
91 new OrPredicate(
92 IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE,
93 IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE));
94
95 public static final BooleanSupplier SHA1_INTRINSICS_AVAILABLE
96 = new AndPredicate(new AndPredicate(
97 IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE,
98 IntrinsicPredicates.COMPILABLE_BY_C2),
99 IntrinsicPredicates.booleanOptionValue("UseSHA1Intrinsics"));
100
101 public static final BooleanSupplier SHA256_INTRINSICS_AVAILABLE
102 = new AndPredicate(new AndPredicate(
103 IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE,
104 IntrinsicPredicates.COMPILABLE_BY_C2),
105 IntrinsicPredicates.booleanOptionValue("UseSHA256Intrinsics"));
106
107 public static final BooleanSupplier SHA512_INTRINSICS_AVAILABLE
108 = new AndPredicate(new AndPredicate(
109 IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE,
110 IntrinsicPredicates.COMPILABLE_BY_C2),
111 IntrinsicPredicates.booleanOptionValue("UseSHA512Intrinsics"));
112
113 private static BooleanSupplier booleanOptionValue(String option) {
114 return () -> IntrinsicPredicates.WHITE_BOX.getBooleanVMFlag(option);
115 }
116
117 private IntrinsicPredicates() {
118 }
119 }