001/*
002 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved.
003 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
004 *
005 * This code is free software; you can redistribute it and/or modify it
006 * under the terms of the GNU General Public License version 2 only, as
007 * published by the Free Software Foundation.
008 *
009 * This code is distributed in the hope that it will be useful, but WITHOUT
010 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
011 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
012 * version 2 for more details (a copy is included in the LICENSE file that
013 * accompanied this code).
014 *
015 * You should have received a copy of the GNU General Public License version
016 * 2 along with this work; if not, write to the Free Software Foundation,
017 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
018 *
019 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
020 * or visit www.oracle.com if you need additional information or have any
021 * questions.
022 */
023package com.oracle.graal.jtt.loop;
024
025import org.junit.*;
026
027import com.oracle.graal.jtt.*;
028
029public class LoopSpilling extends JTTTest {
030
031    private static final int ITERATION = 64;
032
033    /**
034     * Modification of sun.security.provider.SHA2.implCompress().
035     */
036    void test(int[] state) {
037
038        int a1 = state[0];
039        int b1 = state[1];
040        int c1 = state[2];
041        int d1 = state[3];
042        int e1 = state[4];
043        int f1 = state[5];
044        int g1 = state[6];
045        int h1 = state[7];
046
047        // 2nd
048        int a2 = state[8];
049        int b2 = state[9];
050        int c2 = state[10];
051        int d2 = state[11];
052        int e2 = state[12];
053        int f2 = state[13];
054        int g2 = state[14];
055        int h2 = state[15];
056
057        for (int i = 0; i < ITERATION; i++) {
058            h1 = g1;
059            g1 = f1;
060            f1 = e1;
061            e1 = d1;
062            d1 = c1;
063            c1 = b1;
064            b1 = a1;
065            a1 = h1;
066            // 2nd
067            h2 = g2;
068            g2 = f2;
069            f2 = e2;
070            e2 = d2;
071            d2 = c2;
072            c2 = b2;
073            b2 = a2;
074            a2 = h2;
075        }
076        state[0] += a1;
077        state[1] += b1;
078        state[2] += c1;
079        state[3] += d1;
080        state[4] += e1;
081        state[5] += f1;
082        state[6] += g1;
083        state[7] += h1;
084        // 2nd
085        state[8] += a2;
086        state[9] += b2;
087        state[10] += c2;
088        state[11] += d2;
089        state[12] += e2;
090        state[13] += f2;
091        state[14] += g2;
092        state[15] += h2;
093    }
094
095    private static final int[] INITIAL_HASHES = {0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4, 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a,
096                    0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
097
098    @Test
099    public void run0() throws Throwable {
100        runTest("test", supply(() -> INITIAL_HASHES.clone()));
101    }
102
103}