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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.
*/
/**
* @test
* @key randomness
* @bug 8350835
* @summary Test bug fix for JDK-8350835 discovered through Template Framework
* @library /test/lib /
* @run driver compiler.vectorization.TestFloat16ToFloatConv
*/
package compiler.vectorization;
import compiler.lib.ir_framework.*;
import jdk.test.lib.Utils;
import java.util.Random;
import static compiler.lib.generators.Generators.G;
public class TestFloat16ToFloatConv {
private static final Random RANDOM = Utils.getRandomInstance();
private static final int SIZE = 1024;
private static byte[] aB = new byte[SIZE];
private static char[] aC = new char[SIZE];
private static short[] aS = new short[SIZE];
private static int[] aI = new int[SIZE];
private static long[] aL = new long[SIZE];
private static float[] goldB, goldC, goldS, goldI, goldL;
static {
// Fill int and long array using Generators
G.fill(G.ints(), aI);
G.fill(G.longs(), aL);
// Generators do not support byte, char, short array currently so perform manual random fill
for (int i = 0; i < aB.length; i++) {
aB[i] = (byte)RANDOM.nextInt();
aC[i] = (char)RANDOM.nextInt();
aS[i] = (short)RANDOM.nextInt();
}
goldB = testByteKernel(aB);
goldC = testCharKernel(aC);
goldS = testShortKernel(aS);
goldI = testIntKernel(aI);
goldL = testLongKernel(aL);
}
@Test
// Scalar IR for loop body: LoadB, ConvHF2F, StoreF
// Vectorized IR: LoadVector, VectorCastHF2F , StoreVector
// Vectorization disabled as input to VectorCastHF2F would have been a byte vector instead of short vector
// but the VectorCastHF2F expects short vector as input
// See JDK-8352093 for details
@IR(failOn = { IRNode.VECTOR_CAST_HF2F })
public static float[] testByteKernel(byte[] barr) {
float[] res = new float[barr.length];
for (int i = 0; i < barr.length; i++) {
res[i] = Float.float16ToFloat(barr[i]);
}
return res;
}
@Test
@IR(counts = {IRNode.VECTOR_CAST_HF2F, "> 0"},
applyIfOr = {"UseCompactObjectHeaders", "false", "AlignVector", "false"},
applyIfPlatformOr = {"x64", "true", "aarch64", "true", "riscv64", "true"},
applyIfCPUFeatureOr = {"f16c", "true", "avx512f", "true", "zvfh", "true", "asimd", "true", "sve", "true"})
public static float[] testCharKernel(char[] carr) {
float[] res = new float[carr.length];
for (int i = 0; i < carr.length; i++) {
res[i] = Float.float16ToFloat((short)carr[i]);
}
return res;
}
@Test
@IR(counts = {IRNode.VECTOR_CAST_HF2F, "> 0"},
applyIfOr = {"UseCompactObjectHeaders", "false", "AlignVector", "false"},
applyIfPlatformOr = {"x64", "true", "aarch64", "true", "riscv64", "true"},
applyIfCPUFeatureOr = {"f16c", "true", "avx512f", "true", "zvfh", "true", "asimd", "true", "sve", "true"})
public static float[] testShortKernel(short[] sarr) {
float[] res = new float[sarr.length];
for (int i = 0; i < sarr.length; i++) {
res[i] = Float.float16ToFloat(sarr[i]);
}
return res;
}
@Test
// Scalar IR for loop body: LoadI, LShiftI by 16, RShiftI by 16, ConvHF2F, StoreF
// Vectorized IR: LoadVector, LShiftVI, RShiftVI, VectorCastHF2F, StoreVector
// Vectorization disabled as input to VectorCastHF2F would have been an int vector instead of short vector
// but the VectorCastHF2F expects short vector as input
// See JDK-8352093 for details
@IR(failOn = { IRNode.VECTOR_CAST_HF2F })
public static float[] testIntKernel(int[] iarr) {
float[] res = new float[iarr.length];
for (int i = 0; i < iarr.length; i++) {
res[i] = Float.float16ToFloat((short)iarr[i]);
}
return res;
}
@Test
// Scalar IR for loop body: ConvL2I, LoadI, LShiftI by 16, RShiftI by 16, ConvHF2F, StoreF
// Vectorized IR: VectorCastL2X, LoadVector, LShiftVI, RShiftVI, VectorCastHF2F, StoreVector
// Vectorization disabled as input to VectorCastHF2F would have been an int vector instead of short vector
// but the VectorCastHF2F expects short vector as input
// See JDK-8352093 for details
@IR(failOn = { IRNode.VECTOR_CAST_HF2F })
public static float[] testLongKernel(long[] larr) {
float[] res = new float[larr.length];
for (int i = 0; i < larr.length; i++) {
res[i] = Float.float16ToFloat((short)larr[i]);
}
return res;
}
public static void checkResult(float[] res, float[] gold) {
for (int i = 0; i < res.length; i++) {
if (Float.floatToIntBits(res[i]) != Float.floatToIntBits(gold[i])) {
throw new RuntimeException("wrong value: " + Float.floatToRawIntBits(res[i]) + " " + Float.floatToRawIntBits(gold[i]));
}
}
}
@Run(test = {"testByteKernel"})
public static void testByte() {
float[] farr = testByteKernel(aB);
checkResult(farr, goldB);
}
@Run(test = {"testCharKernel"})
public static void testChar() {
float[] farr = testCharKernel(aC);
checkResult(farr, goldC);
}
@Run(test = {"testShortKernel"})
public static void testShort() {
float[] farr = testShortKernel(aS);
checkResult(farr, goldS);
}
@Run(test = {"testIntKernel"})
public static void testInt() {
float[] farr = testIntKernel(aI);
checkResult(farr, goldI);
}
@Run(test = {"testLongKernel"})
public static void testLong() {
float[] farr = testLongKernel(aL);
checkResult(farr, goldL);
}
public static void main(String [] args) {
TestFramework.run(TestFloat16ToFloatConv.class);
}
}
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