jdk-24/test/hotspot/jtreg/compiler/loopstripmining/TestPinnedUseInOuterLSMUnusedBySfpt.java

66 lines
2.1 KiB
Java

/*
* Copyright (c) 2021, Red Hat, Inc. 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
* @bug 8263303
* @summary C2 compilation fails with assert(found_sfpt) failed: no node in loop that's not input to safepoint
*
* @run main/othervm -XX:-BackgroundCompilation -XX:LoopUnrollLimit=0 TestPinnedUseInOuterLSMUnusedBySfpt
*
*/
public class TestPinnedUseInOuterLSMUnusedBySfpt {
public static void main(String[] args) {
int[] array = new int[10000];
for (int i = 0; i < 20_000; i++) {
test(100, array, 42);
test(100, array, 0);
}
}
private static float test(int stop, int[] array, int val) {
if (array == null) {
}
int j;
for (j = 0; j < 10; j++) {
}
int i;
int v = 0;
float f = 1;
for (i = 0; i < 10000; i++) {
if ((j - 10) * i + val == 42) {
f *= 2;
} else {
f *= 3;
}
v = (j - 10) * array[i];
if (i % 10001 != i) {
return v;
}
}
return v + array[i-1] + f;
}
}