Mercurial > hg > graal-jvmci-8
view test/compiler/loopopts/ConstFPVectorization.java @ 23799:535618ab1c04
6675699: need comprehensive fix for unconstrained ConvI2L with narrowed type
Summary: Emit CastII to make narrow ConvI2L dependent on the corresponding range check.
Reviewed-by: kvn, roland
author | thartmann |
---|---|
date | Wed, 27 Jan 2016 09:02:51 +0100 |
parents | aefa2e84b424 |
children |
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/* * Copyright (c) 2015, 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. * */ /** * @test * @bug 8074869 * @summary C2 code generator can replace -0.0f with +0.0f on Linux * @run main ConstFPVectorization 8 * @author volker.simonis@gmail.com * */ public class ConstFPVectorization { static float[] f = new float[16]; static double[] d = new double[16]; static void floatLoop(int count) { for (int i = 0; i < count; i++) { f[i] = -0.0f; } } static void doubleLoop(int count) { for (int i = 0; i < count; i++) { d[i] = -0.0d; } } public static void main(String args[]) { for (int i = 0; i < 10_000; i++) { floatLoop(Integer.parseInt(args[0])); doubleLoop(Integer.parseInt(args[0])); } for (int i = 0; i < Integer.parseInt(args[0]); i++) { if (Float.floatToRawIntBits(f[i]) != Float.floatToRawIntBits(-0.0f)) throw new Error("Float error at index " + i); if (Double.doubleToRawLongBits(d[i]) != Double.doubleToRawLongBits(-0.0d)) throw new Error("Double error at index " + i); } } }