jdk/test/hotspot/jtreg/compiler/loopopts/superword/TestMemorySegmentField.java
Manuel Hässig 626bea80ab 8356176: C2 MemorySegment: missing RCE with byteSize() in Loop Exit Check inside the for Expression
Co-authored-by: Quan Anh Mai <qamai@openjdk.org>
Co-authored-by: Emanuel Peter <epeter@openjdk.org>
Co-authored-by: Christian Hagedorn <chagedorn@openjdk.org>
Co-authored-by: Tobias Hartmann <thartmann@openjdk.org>
Reviewed-by: epeter, qamai
2025-08-19 06:37:52 +00:00

70 lines
2.6 KiB
Java

/*
* Copyright (c) 2025, 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
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*
* 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
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*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package compiler.loopopts.superword;
import compiler.lib.ir_framework.*;
import jdk.test.lib.Utils;
import java.util.Random;
import java.lang.foreign.*;
/*
* @test
* @bug 8356176
* @summary Test vectorization of loops over MemorySegment stored in field
* @library /test/lib /
* @run driver compiler.loopopts.superword.TestMemorySegmentField
*/
public class TestMemorySegmentField {
static int SIZE = 10_000;
static MemorySegment MS = Arena.ofAuto().allocate(SIZE * 4);
public static void main(String[] args) {
TestFramework f = new TestFramework();
f.addFlags("-XX:+IgnoreUnrecognizedVMOptions");
f.addScenarios(new Scenario(0, "-XX:-AlignVector", "-XX:-ShortRunningLongLoop"),
new Scenario(1, "-XX:+AlignVector", "-XX:-ShortRunningLongLoop"),
new Scenario(2, "-XX:-AlignVector", "-XX:+ShortRunningLongLoop"),
new Scenario(3, "-XX:+AlignVector", "-XX:+ShortRunningLongLoop"));
f.start();
}
static int zeroInvarI = 0;
@Test
@IR(counts = {IRNode.LOAD_VECTOR_B, "> 0",
IRNode.ADD_VB, "> 0",
IRNode.STORE_VECTOR, "> 0"},
applyIfPlatform = {"64-bit", "true"},
applyIfCPUFeatureOr = {"sse4.1", "true", "asimd", "true", "rvv", "true"})
public static void testFields() {
int invar = zeroInvarI;
for (long i = 0; i < MS.byteSize(); i++) {
long adr = (long)(i) + (long)(invar);
byte v = MS.get(ValueLayout.JAVA_BYTE, adr);
MS.set(ValueLayout.JAVA_BYTE, adr, (byte)(v + 1));
}
}
}