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/*
* 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
* 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.predicates;
import compiler.lib.ir_framework.*;
import jdk.test.lib.Asserts;
/*
* @test
* @bug 8347449
* @summary Test that profiled loop predicates are turned off if loop predicates are turned off
* @library /test/lib /
* @run driver compiler.predicates.TestDisabledLoopPredicates
*/
public class TestDisabledLoopPredicates {
static final int SIZE = 100;
static final int MIN = 3;
public static void main(String[] args) {
TestFramework.runWithFlags("-XX:+UseLoopPredicate",
"-XX:+UseProfiledLoopPredicate");
TestFramework.runWithFlags("-XX:-UseLoopPredicate");
TestFramework.runWithFlags("-XX:-UseProfiledLoopPredicate");
}
@Run(test = "test")
private static void check() {
int res = test(true);
Asserts.assertEQ(res, ((SIZE - 1) * SIZE - MIN * (MIN + 1)) / 2);
}
@DontInline
private static void blackhole(int i) {
}
@DontInline
private static int[] getArr() {
int[] arr = new int[SIZE];
for (int i = 0; i < SIZE; i++) {
arr[i] = i;
}
return arr;
}
@Test
@IR(counts = { IRNode.LOOP_PARSE_PREDICATE, "1",
IRNode.PROFILED_LOOP_PARSE_PREDICATE, "1" },
applyIfAnd = { "UseLoopPredicate", "true",
"UseProfiledLoopPredicate", "true" })
@IR(failOn = { IRNode.LOOP_PARSE_PREDICATE,
IRNode.PROFILED_LOOP_PARSE_PREDICATE },
applyIf = { "UseLoopPredicate", "false" })
@IR(counts = { IRNode.LOOP_PARSE_PREDICATE, "1" },
failOn = { IRNode.PROFILED_LOOP_PARSE_PREDICATE },
applyIfAnd = { "UseLoopPredicate", "true",
"UseProfiledLoopPredicate", "false" })
public static int test(boolean cond) {
int[] arr = getArr();
int sum = 0;
for (int i = 0; i < arr.length; i++) {
if (cond) {
if (arr[i] > MIN) {
sum += arr[i];
}
}
blackhole(arr[i]);
}
return sum;
}
}
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