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/*
* Copyright (c) 2024, 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.
*/
package compiler.c2.irTests;
import compiler.lib.ir_framework.*;
import jdk.test.lib.Asserts;
/*
* @test
* @bug 8321308
* @summary AArch64: Fix matching predication for cbz/cbnz
* @requires os.arch=="aarch64"
* @library /test/lib /
* @run driver compiler.c2.irTests.TestArrLenCheckOptimization
*/
public class TestArrLenCheckOptimization {
int result = 0;
@Test
@IR(counts = {IRNode.CBZW_LS, "1"})
void test_le_int(int ia[]) {
result += ia[0];
}
@Test
@IR(counts = {IRNode.CBNZW_HI, "1"})
void test_gt_int(int ia[]) {
if (ia.length > 0) {
result += 0x88;
} else {
result -= 1;
}
}
@Test
@IR(counts = {IRNode.CBZ_LS, "1"})
void test_le_long(int ia[]) {
if (Long.compareUnsigned(ia.length, 0) > 0) {
result += 0x80;
} else {
result -= 1;
}
}
@Test
@IR(counts = {IRNode.CBZ_HI, "1"})
void test_gt_long(int ia[]) {
if (Long.compareUnsigned(ia.length, 0) > 0) {
result += 0x82;
} else {
result -= 1;
}
}
@Run(test = {"test_le_int", "test_gt_int", "test_le_long", "test_gt_long"},
mode = RunMode.STANDALONE)
public void test_runner() {
for (int i = 0; i < 10_000; i++) {
test_le_int(new int[1]);
test_gt_int(new int[0]);
test_le_long(new int[1]);
test_gt_long(new int[0]);
}
}
public static void main(String [] args) {
TestFramework.run();
}
}
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