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8345219: C2: x86_64 should not go to interpreter stubs for NaNs handling

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Reviewed-by: epeter, kvn
This commit is contained in:
Aleksey Shipilev 2024-12-04 16:37:38 +00:00
parent 16ef6e2a18
commit f3b4350e0f
5 changed files with 355 additions and 2 deletions
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103
test/micro/org/openjdk/bench/java/lang/DoubleBitConversion.java Normal file
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/*
* Copyright Amazon.com Inc. 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.java.lang;
import org.openjdk.jmh.annotations.Benchmark;
import org.openjdk.jmh.annotations.BenchmarkMode;
import org.openjdk.jmh.annotations.Fork;
import org.openjdk.jmh.annotations.Measurement;
import org.openjdk.jmh.annotations.Mode;
import org.openjdk.jmh.annotations.OutputTimeUnit;
import org.openjdk.jmh.annotations.Scope;
import org.openjdk.jmh.annotations.Setup;
import org.openjdk.jmh.annotations.State;
import org.openjdk.jmh.annotations.Warmup;
import org.openjdk.jmh.infra.Blackhole;
import java.util.BitSet;
import java.util.Date;
import java.util.concurrent.TimeUnit;
@BenchmarkMode(Mode.AverageTime)
@OutputTimeUnit(TimeUnit.NANOSECONDS)
@State(Scope.Thread)
@Warmup(iterations = 3, time = 1)
@Measurement(iterations = 3, time = 1)
@Fork(3)
public class DoubleBitConversion {
double doubleZero = 0;
double doubleOne = 1;
double doubleNan = Double.NaN;
long longDoubleZero = Double.doubleToLongBits(0);
long longDoubleOne = Double.doubleToLongBits(1);
long longDoubleNaN = Double.doubleToLongBits(Double.NaN);
@Benchmark
public long doubleToRawLongBits_zero() {
return Double.doubleToRawLongBits(doubleZero);
}
@Benchmark
public long doubleToRawLongBits_one() {
return Double.doubleToRawLongBits(doubleOne);
}
@Benchmark
public long doubleToRawLongBits_NaN() {
return Double.doubleToRawLongBits(doubleNan);
}
@Benchmark
public long doubleToLongBits_zero() {
return Double.doubleToLongBits(doubleZero);
}
@Benchmark
public long doubleToLongBits_one() {
return Double.doubleToLongBits(doubleOne);
}
@Benchmark
public long doubleToLongBits_NaN() {
return Double.doubleToLongBits(doubleNan);
}
@Benchmark
public double longBitsToDouble_zero() {
return Double.longBitsToDouble(longDoubleZero);
}
@Benchmark
public double longBitsToDouble_one() {
return Double.longBitsToDouble(longDoubleOne);
}
@Benchmark
public double longBitsToDouble_NaN() {
return Double.longBitsToDouble(longDoubleNaN);
}
}