69 lines
2.5 KiB
Java
69 lines
2.5 KiB
Java
/*
|
|
* Copyright (c) 2022, Red Hat, Inc. All rights reserved.
|
|
* 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 compiler.c2.irTests;
|
|
|
|
import compiler.lib.ir_framework.*;
|
|
import jdk.test.whitebox.WhiteBox;
|
|
|
|
/*
|
|
* @test
|
|
* @bug 8283187
|
|
* @summary C2: loop candidate for superword not always unrolled fully if superword fails
|
|
* @library /test/lib /
|
|
* @build jdk.test.whitebox.WhiteBox
|
|
* @requires vm.compiler2.enabled
|
|
* @run driver jdk.test.lib.helpers.ClassFileInstaller jdk.test.whitebox.WhiteBox
|
|
* @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI compiler.c2.irTests.TestSuperwordFailsUnrolling
|
|
*/
|
|
|
|
public class TestSuperwordFailsUnrolling {
|
|
private static int v = 0;
|
|
private final static WhiteBox wb = WhiteBox.getWhiteBox();
|
|
|
|
public static void main(String[] args) {
|
|
Object avx = wb.getVMFlag("UseAVX");
|
|
if (avx != null && ((Long)avx) > 2) {
|
|
TestFramework.runWithFlags("-XX:UseAVX=2", "-XX:LoopMaxUnroll=8", "-XX:-SuperWordReductions");
|
|
}
|
|
TestFramework.runWithFlags("-XX:LoopMaxUnroll=8", "-XX:-SuperWordReductions");
|
|
}
|
|
|
|
@Test
|
|
@IR(applyIf = { "UsePopCountInstruction", "true" }, counts = { IRNode.POPCOUNT_L, ">=10" })
|
|
private static int test(long[] array1, long[] array2) {
|
|
v = 0;
|
|
for (int i = 0; i < array1.length; i++) {
|
|
v += Long.bitCount(array1[i]);
|
|
}
|
|
return v;
|
|
}
|
|
|
|
@Run(test = "test")
|
|
void test_runner() {
|
|
long[] array = new long[1000];
|
|
test(array, array);
|
|
}
|
|
}
|