diff -r 37c7dbe8efee -r eb284abd64fe test/tools/javac/lambda/LambdaTestStrictFP.java --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/tools/javac/lambda/LambdaTestStrictFP.java Mon Jun 23 13:14:32 2014 -0700 @@ -0,0 +1,70 @@ +/* + * Copyright (c) 2014, 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 8046060 + * @summary Different results of floating point multiplication for lambda code block + */ + +strictfp +public class LambdaTestStrictFP { + + static double fld = eval(() -> { + double x = Double.longBitsToDouble(0x1e7ee00000000000L); + double y = Double.longBitsToDouble(0x2180101010101010L); + + return x * y; + }); + + public static void main(String args[]) { + double result = eval(() -> { + double x = Double.longBitsToDouble(0x1e7ee00000000000L); + double y = Double.longBitsToDouble(0x2180101010101010L); + + return x * y; + }); + { + double x = Double.longBitsToDouble(0x1e7ee00000000000L); + double y = Double.longBitsToDouble(0x2180101010101010L); + + double z = x * y; + check(z, result, "method"); + check(z, fld, "field"); + } + } + + private static void check(double expected, double got, String where) { + if (got != expected) { + throw new AssertionError(where + ": Non-strictfp " + got + " != " + expected); + } + } + + private static double eval(Face arg) { + return arg.m(); + } + + private interface Face { + double m(); + } +}