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/*
* Copyright (c) 2020, 2023, 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.
*
*/
/**
* @test
*
* @requires os.arch == "aarch64" & vm.compiler2.enabled & os.family == "linux"
* @summary Verify VM SVE checking behavior
* @library /test/lib
* @requires vm.flagless
*
* @run main/othervm/native compiler.c2.aarch64.TestSVEWithJNI
*/
package compiler.c2.aarch64;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import jdk.test.lib.process.ProcessTools;
import jdk.test.lib.process.OutputAnalyzer;
public class TestSVEWithJNI {
static {
System.loadLibrary("TestSVEWithJNI");
}
static final int EXIT_CODE = 99;
// Returns a nonnegative on success, or a negative value on error.
public static native int setVectorLength(int arg);
// Returns a nonnegative value on success, or a negative value on error.
public static native int getVectorLength();
public static final String MSG = "Current Vector Size: ";
public static void testNormal() {
int vlen = getVectorLength();
System.out.println(MSG + vlen);
// Should be fine if no vector length changed.
if (setVectorLength(vlen) < 0) {
throw new Error("Error in setting vector length.");
}
}
public static void testAbort() {
int vlen = getVectorLength();
if (vlen <= 16) {
throw new Error("Error: unsupported vector length.");
}
if (setVectorLength(16) < 0) {
throw new Error("Error: setting vector length failed.");
}
}
public static ProcessBuilder createProcessBuilder(String [] args, String mode) {
List<String> vmopts = new ArrayList<>();
String testjdkPath = System.getProperty("test.jdk");
Collections.addAll(vmopts, "-Dtest.jdk=" + testjdkPath);
Collections.addAll(vmopts, args);
Collections.addAll(vmopts, TestSVEWithJNI.class.getName(), mode);
return ProcessTools.createLimitedTestJavaProcessBuilder(vmopts.toArray(new String[vmopts.size()]));
}
public static void main(String [] args) throws Exception {
if (args.length == 0) {
int vlen = getVectorLength();
if (vlen < 0) {
return;
}
String [][] testOpts = {
{"-Xint", "-XX:UseSVE=1"},
{"-Xcomp", "-XX:UseSVE=1"},
};
ProcessBuilder pb;
OutputAnalyzer output;
for (String [] opts : testOpts) {
pb = createProcessBuilder(opts, "normal");
output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(EXIT_CODE);
pb = createProcessBuilder(opts, "abort");
output = new OutputAnalyzer(pb.start());
output.shouldNotHaveExitValue(EXIT_CODE);
output.shouldMatch("(error|Error|ERROR)");
}
// Verify MaxVectorSize
// Any SVE architecture should support 128-bit vector size.
pb = createProcessBuilder(new String []{"-XX:UseSVE=1", "-XX:MaxVectorSize=16"}, "normal");
output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(EXIT_CODE);
output.shouldContain(MSG + 16);
// An unsupported large vector size value.
pb = createProcessBuilder(new String []{"-XX:UseSVE=1", "-XX:MaxVectorSize=512"}, "normal");
output = new OutputAnalyzer(pb.start());
output.shouldHaveExitValue(EXIT_CODE);
output.shouldContain("warning");
} else if (args[0].equals("normal")) {
testNormal();
System.exit(EXIT_CODE);
} else if (args[0].equals("abort")) {
testAbort();
System.exit(EXIT_CODE);
}
}
}
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