55233a42f3
Deprecate -XX:+AggressiveOpts and remove it from testing. Reviewed-by: kvn, dholmes, shade
189 lines
6.3 KiB
Java
189 lines
6.3 KiB
Java
/*
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* Copyright (c) 2005, 2018, Oracle and/or its affiliates. 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 6274390 7082971
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* @summary Verify {float, double}Value methods work with condensed representation
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* @run main FloatDoubleValueTests
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* @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:+EliminateAutoBox -XX:AutoBoxCacheMax=20000 FloatDoubleValueTests
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*/
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import java.math.*;
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public class FloatDoubleValueTests {
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private static final long two2the24 = 1L<<23;
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private static final long two2the53 = 1L<<52;
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// Largest long that fits exactly in a float
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private static final long maxFltLong = (long)(Integer.MAX_VALUE & ~(0xff));
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// Largest long that fits exactly in a double
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private static final long maxDblLong = Long.MAX_VALUE & ~(0x7ffL);
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static void testDoubleValue0(long i, BigDecimal bd) {
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if (bd.doubleValue() != i ||
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bd.longValue() != i)
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throw new RuntimeException("Unexpected equality failure for " +
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i + "\t" + bd);
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}
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static void testFloatValue0(long i, BigDecimal bd) {
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if (bd.floatValue() != i ||
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bd.longValue() != i)
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throw new RuntimeException("Unexpected equality failure for " +
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i + "\t" + bd);
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}
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static void checkFloat(BigDecimal bd, float f) {
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float fbd = bd.floatValue();
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if (f != fbd ) {
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String message = String.format("Bad conversion:"+
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"got %g (%a)\texpected %g (%a)",
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f, f, fbd, fbd);
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throw new RuntimeException(message);
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}
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}
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static void checkDouble(BigDecimal bd, double d) {
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double dbd = bd.doubleValue();
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if (d != dbd ) {
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String message = String.format("Bad conversion:"+
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"got %g (%a)\texpected %g (%a)",
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d, d, dbd, dbd);
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throw new RuntimeException(message);
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}
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}
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// Test integral values that will convert exactly to both float
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// and double.
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static void testFloatDoubleValue() {
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long longValues[] = {
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Long.MIN_VALUE, // -2^63
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0,
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1,
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2,
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two2the24-1,
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two2the24,
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two2the24+1,
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maxFltLong-1,
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maxFltLong,
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maxFltLong+1,
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};
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for(long i : longValues) {
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BigDecimal bd1 = new BigDecimal(i);
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BigDecimal bd2 = new BigDecimal(-i);
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testDoubleValue0( i, bd1);
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testDoubleValue0(-i, bd2);
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testFloatValue0( i, bd1);
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testFloatValue0(-i, bd2);
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}
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}
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static void testDoubleValue() {
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long longValues[] = {
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Integer.MAX_VALUE-1,
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Integer.MAX_VALUE,
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(long)Integer.MAX_VALUE+1,
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two2the53-1,
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two2the53,
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two2the53+1,
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maxDblLong,
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};
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// Test integral values that will convert exactly to double
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// but not float.
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for(long i : longValues) {
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BigDecimal bd1 = new BigDecimal(i);
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BigDecimal bd2 = new BigDecimal(-i);
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testDoubleValue0( i, bd1);
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testDoubleValue0(-i, bd2);
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checkFloat(bd1, (float)i);
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checkFloat(bd2, -(float)i);
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}
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// Now check values that should not convert the same in double
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for(long i = maxDblLong; i < Long.MAX_VALUE; i++) {
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BigDecimal bd1 = new BigDecimal(i);
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BigDecimal bd2 = new BigDecimal(-i);
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checkDouble(bd1, (double)i);
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checkDouble(bd2, -(double)i);
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checkFloat(bd1, (float)i);
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checkFloat(bd2, -(float)i);
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}
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checkDouble(new BigDecimal(Long.MIN_VALUE), (double)Long.MIN_VALUE);
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checkDouble(new BigDecimal(Long.MAX_VALUE), (double)Long.MAX_VALUE);
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}
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static void testFloatValue() {
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// Now check values that should not convert the same in float
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for(long i = maxFltLong; i <= Integer.MAX_VALUE; i++) {
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BigDecimal bd1 = new BigDecimal(i);
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BigDecimal bd2 = new BigDecimal(-i);
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checkFloat(bd1, (float)i);
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checkFloat(bd2, -(float)i);
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testDoubleValue0( i, bd1);
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testDoubleValue0(-i, bd2);
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}
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}
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static void testFloatValue1() {
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checkFloat(new BigDecimal("85070591730234615847396907784232501249"), 8.507059e+37f);
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checkFloat(new BigDecimal("7784232501249e12"), 7.7842326e24f);
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checkFloat(new BigDecimal("907784232501249e-12"),907.78424f);
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checkFloat(new BigDecimal("7784e8"),7.7839997e11f);
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checkFloat(new BigDecimal("9077e-8"),9.077e-5f);
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}
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static void testDoubleValue1() {
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checkDouble(new BigDecimal("85070591730234615847396907784232501249"), 8.507059173023462e37);
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checkDouble(new BigDecimal("7784232501249e12"), 7.784232501249e24);
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checkDouble(new BigDecimal("907784232501249e-12"), 907.784232501249);
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checkDouble(new BigDecimal("7784e8"), 7.784e11);
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checkDouble(new BigDecimal("9077e-8"), 9.077e-5);
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}
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public static void main(String[] args) throws Exception {
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testFloatDoubleValue();
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testDoubleValue();
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testFloatValue();
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testFloatValue1();
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testDoubleValue1();
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}
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}
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