85 lines
2.6 KiB
Java
85 lines
2.6 KiB
Java
/*
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* Copyright (c) 2024, Oracle and/or its affiliates. All rights reserved.
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* Copyright (c) 2024, Rivos Inc. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/**
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* @test
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* @bug 8321010
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* @summary Test intrinsic for Math.round(float) in full 32 bits range
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*
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* @library /test/lib /
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* @modules java.base/jdk.internal.math
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* @requires os.arch == "riscv64"
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* @run main/othervm -XX:-TieredCompilation -Xbatch -XX:CompileThresholdScaling=0.3 -XX:-UseSuperWord
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* -XX:CompileCommand=compileonly,compiler.floatingpoint.TestRoundFloatAll::test*
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* compiler.floatingpoint.TestRoundFloatAll
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*/
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package compiler.floatingpoint;
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import static compiler.lib.golden.GoldenRound.golden_round;
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public class TestRoundFloatAll {
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public static void main(String args[]) {
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test();
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}
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// return true when test fails
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static boolean test(int n, float f) {
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int actual = Math.round(f);
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int expected = golden_round(f);
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if (actual != expected) {
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System.err.println("round error, input: " + f + ", res: " + actual + "expected: " + expected + ", input hex: " + n);
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return true;
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}
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return false;
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}
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static void test() {
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final int ITERS = 11000;
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boolean fail = false;
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// Warmup
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System.out.println("Warmup");
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for (int i=0; i<ITERS; i++) {
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float f = Float.intBitsToFloat(i);
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fail |= test(i, f);
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}
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if (fail) {
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throw new RuntimeException("Warmup failed");
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}
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// Test and verify results
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System.out.println("Verification");
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int testInt = 0;
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do {
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float testFloat = Float.intBitsToFloat(testInt);
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fail |= test(testInt, testFloat);
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} while (++testInt != 0);
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if (fail) {
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throw new RuntimeException("Test failed");
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}
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}
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}
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