russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
127 lines
3.8 KiB
Java
127 lines
3.8 KiB
Java
/*
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* Copyright Amazon.com Inc. 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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package compiler.c2.irTests;
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import compiler.lib.ir_framework.*;
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import jdk.test.lib.Asserts;
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/*
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* @test
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* @bug 8345219
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* @summary Test that code generation for FP conversion works as intended
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* @library /test/lib /
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* @requires os.arch != "x86" & os.arch != "i386"
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* @run driver compiler.c2.irTests.TestFPConversion
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*/
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public class TestFPConversion {
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static final double[] DOUBLES = new double[] {
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Double.NEGATIVE_INFINITY,
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-Double.MAX_VALUE,
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-1.0,
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-Double.MIN_VALUE,
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-0.0,
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0.0,
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Double.MIN_VALUE,
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1.0,
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Double.MAX_VALUE,
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Double.POSITIVE_INFINITY,
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Double.NaN,
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};
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static final float[] FLOATS = new float[] {
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Float.NEGATIVE_INFINITY,
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-Float.MAX_VALUE,
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-1.0F,
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-Float.MIN_VALUE,
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-0.0F,
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0.0F,
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Float.MIN_VALUE,
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1.0F,
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Float.MAX_VALUE,
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Float.POSITIVE_INFINITY,
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Float.NaN,
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};
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public static void main(String[] args) {
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TestFramework.run();
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}
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@Test
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@IR(counts = {IRNode.MOV_D2L, "1"})
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public long doubleToRawLongBits(double x) {
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return Double.doubleToRawLongBits(x);
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}
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@Test
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@IR(counts = {IRNode.MOV_D2L, "1"})
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public long doubleToLongBits(double x) {
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return Double.doubleToLongBits(x);
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}
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@Test
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@IR(counts = {IRNode.MOV_L2D, "1"})
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public double longBitsToDouble(long x) {
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return Double.longBitsToDouble(x);
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}
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@Test
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@IR(counts = {IRNode.MOV_F2I, "1"})
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public int floatToRawIntBits(float x) {
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return Float.floatToRawIntBits(x);
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}
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@Test
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@IR(counts = {IRNode.MOV_F2I, "1"})
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public int floatToIntBits(float x) {
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return Float.floatToIntBits(x);
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}
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@Test
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@IR(counts = {IRNode.MOV_I2F, "1"})
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public float intBitsToFloat(int x) {
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return Float.intBitsToFloat(x);
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}
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@Run(test = {"doubleToRawLongBits", "doubleToLongBits", "longBitsToDouble",
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"floatToRawIntBits", "floatToIntBits", "intBitsToFloat"})
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public void runTests() {
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for (int i = 0; i < DOUBLES.length; i++) {
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double d = DOUBLES[i];
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long l1 = doubleToRawLongBits(d);
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long l2 = doubleToLongBits(d);
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double d1 = longBitsToDouble(l1);
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double d2 = longBitsToDouble(l2);
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Asserts.assertEquals(d, d1);
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Asserts.assertEquals(d, d2);
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}
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for (int i = 0; i < FLOATS.length; i++) {
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float f = FLOATS[i];
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int i1 = floatToRawIntBits(f);
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int i2 = floatToIntBits(f);
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float f1 = intBitsToFloat(i1);
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float f2 = intBitsToFloat(i2);
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Asserts.assertEquals(f, f1);
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Asserts.assertEquals(f, f2);
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}
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}
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}
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