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8247307: C2: Loop array fill stub routines are not called

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Ignore safepoint polling use of CountedLoopNode when matching loop array fill pattern.

Reviewed-by: kvn, thartmann
This commit is contained in:
Pengfei Li 2020-06-28 06:15:31 +00:00
parent bdab5a0a3a
commit ac4f14c386
3 changed files with 120 additions and 5 deletions
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98
test/micro/org/openjdk/bench/vm/compiler/ArrayFill.java Normal file
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/*
* Copyright (c) 2020, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2020, Arm Limited. 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.vm.compiler;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Param;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import java.util.concurrent.TimeUnit;
import java.util.Arrays;
@State(Scope.Benchmark)
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
public class ArrayFill {
@Param("65536") private int size;
private byte[] ba;
private short[] sa;
private int[] ia;
@Setup
public void setup() {
ba = new byte[size];
sa = new short[size];
ia = new int[size];
}
@Benchmark
public void fillByteArray() {
for (int i = 0; i < size; i++) {
ba[i] = (byte) 123;
}
}
@Benchmark
public void fillShortArray() {
for (int i = 0; i < size; i++) {
sa[i] = (short) 12345;
}
}
@Benchmark
public void fillIntArray() {
for (int i = 0; i < size; i++) {
ia[i] = 1234567890;
}
}
@Benchmark
public void zeroByteArray() {
for (int i = 0; i < size; i++) {
ba[i] = 0;
}
}
@Benchmark
public void zeroShortArray() {
for (int i = 0; i < size; i++) {
sa[i] = 0;
}
}
@Benchmark
public void zeroIntArray() {
for (int i = 0; i < size; i++) {
ia[i] = 0;
}
}
}