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/*
* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2024, Rivos 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 8321010
* @summary Test vector intrinsic for Math.round(float) in full 32 bits range
*
* @library /test/lib /
* @modules java.base/jdk.internal.math
* @requires os.arch == "riscv64" & vm.cpu.features ~= ".*rvv.*"
* @run main/othervm -XX:-TieredCompilation -XX:CompileThresholdScaling=0.3 -XX:+UseSuperWord -XX:CompileCommand=compileonly,compiler.vectorization.TestRoundVectorFloatAll::test* compiler.vectorization.TestRoundVectorFloatAll
* @run main/othervm -XX:-TieredCompilation -XX:CompileThresholdScaling=0.3 -XX:MaxVectorSize=32 -XX:+UseSuperWord -XX:CompileCommand=compileonly,compiler.vectorization.TestRoundVectorFloatAll::test* compiler.vectorization.TestRoundVectorFloatAll
*/
package compiler.vectorization;
import java.util.Random;
import static compiler.lib.golden.GoldenRound.golden_round;
public class TestRoundVectorFloatAll {
private static final Random rand = new Random();
private static final int ITERS = 11000;
private static final int ARRLEN = rand.nextInt(4096-997) + 997;
private static final float ADD_INIT = -7500.f;
public static void main(String args[]) {
test();
}
static void test() {
float[] input = new float[ARRLEN];
int [] res = new int[ARRLEN];
// Warmup
System.out.println("Warmup");
for (int i=0; i<ITERS; i++) {
test_round(res, input);
}
// Test and verify results
System.out.println("Verification");
int errn = 0;
for (long l = Integer.MIN_VALUE; l <= Integer.MAX_VALUE; l+=ARRLEN) {
for (int i = 0; i < ARRLEN; i++) {
input[i] = Float.intBitsToFloat((int)(i+l));
}
// run tests
test_round(res, input);
// verify results
for (int j = 0; j < ARRLEN; j++) {
if (res[j] != golden_round(input[j])) {
errn++;
System.err.println("round error, input: " + input[j] +
", res: " + res[j] + "expected: " + golden_round(input[j]) +
", input hex: " + Float.floatToIntBits(input[j]));
}
}
}
if (errn > 0) {
throw new RuntimeException("There are some round error detected!");
}
}
static void test_round(int[] a0, float[] a1) {
for (int i = 0; i < a0.length; i+=1) {
a0[i] = Math.round(a1[i]);
}
}
}
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