1 /* 2 * Copyright (c) 2015, 2015, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.graalvm.compiler.jtt.loop; 24 25 import org.junit.Test; 26 27 import org.graalvm.compiler.jtt.JTTTest; 28 29 public class LoopSpilling extends JTTTest { 30 31 private static final int ITERATION = 64; 32 33 /** 34 * Modification of sun.security.provider.SHA2.implCompress(). 35 */ 36 void test(int[] state) { 37 38 int a1 = state[0]; 39 int b1 = state[1]; 40 int c1 = state[2]; 41 int d1 = state[3]; 42 int e1 = state[4]; 43 int f1 = state[5]; 44 int g1 = state[6]; 45 int h1 = state[7]; 46 47 // 2nd 48 int a2 = state[8]; 49 int b2 = state[9]; 50 int c2 = state[10]; 51 int d2 = state[11]; 52 int e2 = state[12]; 53 int f2 = state[13]; 54 int g2 = state[14]; 55 int h2 = state[15]; 56 57 for (int i = 0; i < ITERATION; i++) { 58 h1 = g1; 59 g1 = f1; 60 f1 = e1; 61 e1 = d1; 62 d1 = c1; 63 c1 = b1; 64 b1 = a1; 65 a1 = h1; 66 // 2nd 67 h2 = g2; 68 g2 = f2; 69 f2 = e2; 70 e2 = d2; 71 d2 = c2; 72 c2 = b2; 73 b2 = a2; 74 a2 = h2; 75 } 76 state[0] += a1; 77 state[1] += b1; 78 state[2] += c1; 79 state[3] += d1; 80 state[4] += e1; 81 state[5] += f1; 82 state[6] += g1; 83 state[7] += h1; 84 // 2nd 85 state[8] += a2; 86 state[9] += b2; 87 state[10] += c2; 88 state[11] += d2; 89 state[12] += e2; 90 state[13] += f2; 91 state[14] += g2; 92 state[15] += h2; 93 } 94 95 private static final int[] INITIAL_HASHES = {0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4, 0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 96 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19}; 97 98 @Test 99 public void run0() throws Throwable { 100 runTest("test", supply(() -> INITIAL_HASHES.clone())); 101 } 102 103 }