diff test/compiler/testlibrary/sha/predicate/IntrinsicPredicates.java @ 20428:4d8781a35525

8055903: Develop sanity tests on SPARC's SHA instructions support Reviewed-by: kvn, iignatyev
author fzhinkin
date Wed, 03 Sep 2014 15:26:06 +0400
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/compiler/testlibrary/sha/predicate/IntrinsicPredicates.java	Wed Sep 03 15:26:06 2014 +0400
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+/*
+ * Copyright (c) 2014, Oracle and/or its affiliates. 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.
+ */
+
+package sha.predicate;
+
+import com.oracle.java.testlibrary.Platform;
+import com.oracle.java.testlibrary.cli.predicate.AndPredicate;
+import com.oracle.java.testlibrary.cli.predicate.CPUSpecificPredicate;
+import com.oracle.java.testlibrary.cli.predicate.OrPredicate;
+import sun.hotspot.WhiteBox;
+
+import java.util.function.BooleanSupplier;
+
+/**
+ * Helper class aimed to provide predicates on availability of SHA-related
+ * CPU instructions and intrinsics.
+ */
+public class IntrinsicPredicates {
+    private static final WhiteBox WHITE_BOX = WhiteBox.getWhiteBox();
+    private static final long TIERED_MAX_LEVEL = 4L;
+    /**
+     * Boolean supplier that check if any method could be compiled by C2.
+     * Method potentially could be compiled by C2 if Server VM is used and
+     * either tiered compilation is disabled or TIERED_MAX_LEVEL tier is
+     * reachable.
+     *
+     * Please don't place this definition after SHA*_INTRINSICS_AVAILABLE
+     * definitions. Otherwise its value will be {@code null} at the time when
+     * all dependent fields will be initialized.
+     */
+    private static final BooleanSupplier COMPILABLE_BY_C2 = () -> {
+        boolean isTiered = IntrinsicPredicates.WHITE_BOX.getBooleanVMFlag(
+                "TieredCompilation");
+        long tieredMaxLevel = IntrinsicPredicates.WHITE_BOX.getIntxVMFlag(
+                "TieredStopAtLevel");
+        boolean maxLevelIsReachable = (tieredMaxLevel
+                == IntrinsicPredicates.TIERED_MAX_LEVEL);
+        return Platform.isServer() && (!isTiered || maxLevelIsReachable);
+    };
+
+    public static final BooleanSupplier SHA1_INSTRUCTION_AVAILABLE
+            = new CPUSpecificPredicate("sparc.*", new String[] { "sha1" },
+                    null);
+
+    public static final BooleanSupplier SHA256_INSTRUCTION_AVAILABLE
+            = new CPUSpecificPredicate("sparc.*", new String[] { "sha256" },
+                    null);
+
+    public static final BooleanSupplier SHA512_INSTRUCTION_AVAILABLE
+            = new CPUSpecificPredicate("sparc.*", new String[] { "sha512" },
+                    null);
+
+    public static final BooleanSupplier ANY_SHA_INSTRUCTION_AVAILABLE
+            = new OrPredicate(IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE,
+                    new OrPredicate(
+                            IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE,
+                            IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE));
+
+    public static final BooleanSupplier SHA1_INTRINSICS_AVAILABLE
+            = new AndPredicate(new AndPredicate(
+                    IntrinsicPredicates.SHA1_INSTRUCTION_AVAILABLE,
+                    IntrinsicPredicates.COMPILABLE_BY_C2),
+                IntrinsicPredicates.booleanOptionValue("UseSHA1Intrinsics"));
+
+    public static final BooleanSupplier SHA256_INTRINSICS_AVAILABLE
+            = new AndPredicate(new AndPredicate(
+                    IntrinsicPredicates.SHA256_INSTRUCTION_AVAILABLE,
+                    IntrinsicPredicates.COMPILABLE_BY_C2),
+                IntrinsicPredicates.booleanOptionValue("UseSHA256Intrinsics"));
+
+    public static final BooleanSupplier SHA512_INTRINSICS_AVAILABLE
+            = new AndPredicate(new AndPredicate(
+                    IntrinsicPredicates.SHA512_INSTRUCTION_AVAILABLE,
+                    IntrinsicPredicates.COMPILABLE_BY_C2),
+                IntrinsicPredicates.booleanOptionValue("UseSHA512Intrinsics"));
+
+    private static BooleanSupplier booleanOptionValue(String option) {
+        return () -> IntrinsicPredicates.WHITE_BOX.getBooleanVMFlag(option);
+    }
+
+    private IntrinsicPredicates() {
+    }
+}