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/*
* Copyright (c) 2022, Arm Limited. All rights reserved.
* Copyright (c) 2023, 2024, 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 java.util.Random;
import jdk.test.lib.Asserts;
import jdk.test.lib.Utils;
/*
* @test
* @bug 8283307
* @key randomness
* @summary Auto-vectorization enhancement for unsigned shift right on signed subword types
* @requires ((os.arch=="amd64" | os.arch=="x86_64") & (vm.opt.UseSSE == "null" | vm.opt.UseSSE > 3)) | os.arch=="aarch64" |
* (os.arch == "riscv64" & vm.cpu.features ~= ".*rvv.*")
* @library /test/lib /
* @run driver compiler.c2.irTests.TestVectorizeURShiftSubword
*/
public class TestVectorizeURShiftSubword {
private static final Random RANDOM = Utils.getRandomInstance();
final private static int NUM = 3000;
private short[] shorta = new short[NUM];
private short[] shortb = new short[NUM];
private byte[] bytea = new byte[NUM];
private byte[] byteb = new byte[NUM];
private static final int[] SPECIALS = {
0, 0x1, 0x8, 0xF, 0x3F, 0x7C, 0x7F, 0x80, 0x81, 0x8F, 0xF3, 0xF8, 0xFF,
0x38FF, 0x3FFF, 0x8F8F, 0x8FFF, 0x7FF3, 0x7FFF, 0xFF33, 0xFFF8, 0xFFFF, 0xFFFFFF,
Integer.MAX_VALUE, Integer.MIN_VALUE
};
public byte urshift(byte input, int amount) {
return (byte) (input >>> amount);
}
public short urshift(short input, int amount) {
return (short) (input >>> amount);
}
public static void main(String[] args) {
TestFramework framework = new TestFramework(TestVectorizeURShiftSubword.class);
framework.setDefaultWarmup(1).addFlags("-XX:CompileCommand=exclude,*.urshift").start();
}
@Test
@IR(counts = {IRNode.LOAD_VECTOR_B, ">0", IRNode.RSHIFT_VB, ">0", IRNode.STORE_VECTOR, ">0"})
public void testByte0() {
for(int i = 0; i < NUM; i++) {
byteb[i] = (byte) (bytea[i] >>> 3);
}
}
@Test
@IR(counts = {IRNode.LOAD_VECTOR_B, ">0", IRNode.RSHIFT_VB, ">0", IRNode.STORE_VECTOR, ">0"})
public void testByte1() {
for(int i = 0; i < NUM; i++) {
byteb[i] = (byte) (bytea[i] >>> 24);
}
}
@Test
@IR(failOn = {IRNode.LOAD_VECTOR_B, IRNode.RSHIFT_VB, IRNode.STORE_VECTOR})
public void testByte2() {
for(int i = 0; i < NUM; i++) {
byteb[i] = (byte) (bytea[i] >>> 25);
}
}
@Test
@IR(counts = {IRNode.LOAD_VECTOR_S, ">0", IRNode.RSHIFT_VS, ">0", IRNode.STORE_VECTOR, ">0"})
public void testShort0() {
for(int i = 0; i < NUM; i++) {
shortb[i] = (short) (shorta[i] >>> 10);
}
}
@Test
@IR(counts = {IRNode.LOAD_VECTOR_S, ">0", IRNode.RSHIFT_VS, ">0", IRNode.STORE_VECTOR, ">0"})
public void testShort1() {
for(int i = 0; i < NUM; i++) {
shortb[i] = (short) (shorta[i] >>> 16);
}
}
@Test
@IR(failOn = {IRNode.LOAD_VECTOR_S, IRNode.RSHIFT_VS, IRNode.STORE_VECTOR})
public void testShort2() {
for(int i = 0; i < NUM; i++) {
shortb[i] = (short) (shorta[i] >>> 17);
}
}
@Test
public void checkTest() {
testByte0();
for (int i = 0; i < bytea.length; i++) {
Asserts.assertEquals(byteb[i], urshift(bytea[i], 3));
}
testByte1();
for (int i = 0; i < bytea.length; i++) {
Asserts.assertEquals(byteb[i], urshift(bytea[i], 24));
}
testByte2();
for (int i = 0; i < bytea.length; i++) {
Asserts.assertEquals(byteb[i], urshift(bytea[i], 25));
}
testShort0();
for (int i = 0; i < shorta.length; i++) {
Asserts.assertEquals(shortb[i], urshift(shorta[i], 10));
}
testShort1();
for (int i = 0; i < shorta.length; i++) {
Asserts.assertEquals(shortb[i], urshift(shorta[i], 16));
}
testShort2();
for (int i = 0; i < shorta.length; i++) {
Asserts.assertEquals(shortb[i], urshift(shorta[i], 17));
}
}
@Run(test = "checkTest")
public void checkTest_runner() {
for (int i = 0; i < SPECIALS.length; i++) {
for (int j = 0; j < shorta.length; j++) {
shorta[j] = (short) SPECIALS[i];
bytea[j] = (byte) SPECIALS[i];
}
checkTest();
}
for (int j = 0; j < shorta.length; j++) {
shorta[j] = (short) RANDOM.nextInt();;
bytea[j] = (byte) RANDOM.nextInt();
}
checkTest();
}
}
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