forked from openjdk/valhalla
-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
8316742: [lworld] Intrinsify Unsafe::isFlattenedArray()
Reviewed-by: thartmann
- Loading branch information
1 parent
3a5d7d9
commit 985474d
Showing
11 changed files
with
166 additions
and
8 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
95 changes: 95 additions & 0 deletions
95
test/micro/org/openjdk/bench/valhalla/intrinsics/IsFlattenedArray.java
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,95 @@ | ||
| /* | ||
| * Copyright (c) 2023, 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 org.openjdk.bench.valhalla.intrinsics; | ||
|
|
||
| import org.openjdk.jmh.annotations.*; | ||
|
|
||
| import java.lang.invoke.MethodHandles; | ||
| import java.lang.invoke.VarHandle; | ||
| import java.util.concurrent.TimeUnit; | ||
| import jdk.internal.misc.Unsafe; | ||
|
|
||
| @BenchmarkMode(Mode.Throughput) | ||
| @OutputTimeUnit(TimeUnit.MICROSECONDS) | ||
| @Fork(value = 1, | ||
| jvmArgsAppend = {"--add-opens", "java.base/jdk.internal.misc=ALL-UNNAMED", | ||
| "-XX:+EnableValhalla", "-XX:+EnablePrimitiveClasses"}) | ||
| @Warmup(iterations = 3, time = 1) | ||
| @Measurement(iterations = 5, time = 1) | ||
| public class IsFlattenedArray { | ||
|
|
||
| private static final Unsafe U = Unsafe.getUnsafe(); | ||
| private static final VarHandle objectArrayVarHandle = | ||
| MethodHandles.arrayElementVarHandle(Object[].class); | ||
|
|
||
| @State(Scope.Benchmark) | ||
| public static class ClassState { | ||
| public Class flattenedArrayClass = Point[].class; | ||
| public Class nonFlattenedArrayClass = String[].class; | ||
|
|
||
| public Object[] objectArray = new Object[10]; | ||
| public Object objectElement = new Object(); | ||
| public int arrayIndex = 0; | ||
| } | ||
|
|
||
| @Benchmark | ||
| public boolean testKnownFlattenedClass() { | ||
| return U.isFlattenedArray(Point[].class); | ||
| } | ||
|
|
||
| @Benchmark | ||
| public boolean testKnownNonFlattenedClass() { | ||
| return U.isFlattenedArray(String[].class); | ||
| } | ||
|
|
||
| @Benchmark | ||
| public boolean testUnknownFlattenedClass(ClassState state) { | ||
| return U.isFlattenedArray(state.flattenedArrayClass); | ||
| } | ||
|
|
||
| @Benchmark | ||
| public boolean testUnknownNonFlattenedClass(ClassState state) { | ||
| return U.isFlattenedArray(state.nonFlattenedArrayClass); | ||
| } | ||
|
|
||
| @Benchmark | ||
| public void setArrayElement(ClassState state) { | ||
| objectArrayVarHandle.set(state.objectArray, state.arrayIndex, state.objectElement); | ||
| } | ||
|
|
||
| @Benchmark | ||
| public VarHandle makeArrayVarHandle() { | ||
| return MethodHandles.arrayElementVarHandle(Object[].class); | ||
| } | ||
|
|
||
| } | ||
|
|
||
| primitive class Point { | ||
| int x; | ||
| int y; | ||
| public Point(int x, int y) { | ||
| this.x = x; | ||
| this.y = y; | ||
| } | ||
| } |