Mercurial > hg > graal-compiler
view test/compiler/8000805/Test8000805.java @ 18615:c2da0aa9e675
Merge.
author | Doug Simon <doug.simon@oracle.com> |
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date | Thu, 04 Dec 2014 13:48:10 +0100 |
parents | 89152779163c |
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/* * Copyright (c) 2012, 2013, 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 8000805 * @summary JMM issue: short loads are non-atomic * * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -Xcomp -XX:+PrintCompilation -XX:CompileOnly=Test8000805.loadS2LmaskFF,Test8000805.loadS2Lmask16,Test8000805.loadS2Lmask13,Test8000805.loadUS_signExt,Test8000805.loadB2L_mask8 Test8000805 */ public class Test8000805 { static long loadS2LmaskFF (short[] sa) { return sa[0] & 0xFF; } static long loadS2LmaskFF_1 (short[] sa) { return sa[0] & 0xFF; } static long loadS2Lmask16 (short[] sa) { return sa[0] & 0xFFFE; } static long loadS2Lmask16_1 (short[] sa) { return sa[0] & 0xFFFE; } static long loadS2Lmask13 (short[] sa) { return sa[0] & 0x0FFF; } static long loadS2Lmask13_1 (short[] sa) { return sa[0] & 0x0FFF; } static int loadUS_signExt (char[] ca) { return (ca[0] << 16) >> 16; } static int loadUS_signExt_1 (char[] ca) { return (ca[0] << 16) >> 16; } static long loadB2L_mask8 (byte[] ba) { return ba[0] & 0x55; } static long loadB2L_mask8_1 (byte[] ba) { return ba[0] & 0x55; } public static void main(String[] args) { for (int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) { byte[] ba = new byte[] { (byte) i}; { long v1 = loadB2L_mask8(ba); long v2 = loadB2L_mask8_1(ba); if (v1 != v2) throw new InternalError(String.format("loadB2L_mask8 failed: %x != %x", v1, v2)); } } for (int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) { short[] sa = new short[] { (short)i }; char[] ca = new char[] { (char)i }; { long v1 = loadS2LmaskFF(sa); long v2 = loadS2LmaskFF_1(sa); if (v1 != v2) throw new InternalError(String.format("loadS2LmaskFF failed: %x != %x", v1, v2)); } { long v1 = loadS2Lmask16(sa); long v2 = loadS2Lmask16_1(sa); if (v1 != v2) throw new InternalError(String.format("loadS2Lmask16 failed: %x != %x", v1, v2)); } { long v1 = loadS2Lmask13(sa); long v2 = loadS2Lmask13_1(sa); if (v1 != v2) throw new InternalError(String.format("loadS2Lmask13 failed: %x != %x", v1, v2)); } { int v1 = loadUS_signExt(ca); int v2 = loadUS_signExt_1(ca); if (v1 != v2) throw new InternalError(String.format("loadUS_signExt failed: %x != %x", v1, v2)); } } System.out.println("TEST PASSED."); } }