| /* |
| * Copyright (c) 2016, 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. |
| */ |
| package org.graalvm.compiler.nodes.test; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameter; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| import org.graalvm.compiler.core.common.type.FloatStamp; |
| import org.graalvm.compiler.core.common.type.IntegerStamp; |
| import org.graalvm.compiler.core.common.type.StampPair; |
| import org.graalvm.compiler.nodes.ParameterNode; |
| import org.graalvm.compiler.nodes.calc.ReinterpretNode; |
| |
| import jdk.vm.ci.meta.JavaKind; |
| |
| @RunWith(Parameterized.class) |
| public class ReinterpretStampFloatToIntTest extends ReinterpretStampTest { |
| |
| @Parameters(name = "{0}") |
| public static Collection<Object[]> data() { |
| List<Object[]> ret = new ArrayList<>(); |
| |
| for (int x : interestingInts) { |
| float lowerBound = Float.intBitsToFloat(x); |
| if (Float.isNaN(lowerBound)) { |
| continue; |
| } |
| |
| for (int y : interestingInts) { |
| float upperBound = Float.intBitsToFloat(y); |
| if (Float.isNaN(upperBound)) { |
| continue; |
| } |
| |
| if (Float.compare(lowerBound, upperBound) <= 0) { |
| ret.add(new Object[]{new FloatStamp(Float.SIZE, lowerBound, upperBound, true)}); |
| ret.add(new Object[]{new FloatStamp(Float.SIZE, lowerBound, upperBound, false)}); |
| } |
| } |
| } |
| |
| ret.add(new Object[]{new FloatStamp(Float.SIZE, Float.NaN, Float.NaN, false)}); |
| |
| return ret; |
| } |
| |
| @Parameter(value = 0) public FloatStamp inputStamp; |
| |
| @Test |
| public void run() { |
| ParameterNode param = new ParameterNode(0, StampPair.createSingle(inputStamp)); |
| ReinterpretNode reinterpret = new ReinterpretNode(JavaKind.Int, param); |
| reinterpret.inferStamp(); |
| |
| IntegerStamp resultStamp = (IntegerStamp) reinterpret.stamp(); |
| Assert.assertEquals(Integer.SIZE, resultStamp.getBits()); |
| |
| for (int result : interestingInts) { |
| float input = Float.intBitsToFloat(result); |
| |
| if (inputStamp.contains(input) && !resultStamp.contains(result)) { |
| Assert.fail(String.format("value %f (0x%x) is in input stamp, but not in result stamp (%s)", input, result, resultStamp)); |
| } |
| } |
| } |
| } |