1 /* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 // Test for the optimizing compiler's parallel swap support in 18 // the presence of register pairs (in this case, doubles on ARM). 19 public class Main { main(String[] args)20 public static void main(String[] args) { 21 new Main().foo(); 22 } 23 foo()24 public void foo() { 25 // Do multiple calls to force swapping of registers. Note that 26 // this depends on the calling convention, as a stack-only convention 27 // may not need the swapping. 28 callWithDoubles(a, b, c, d, e, f, g); 29 callWithDoubles(b, c, d, e, f, g, a); 30 callWithDoubles(c, d, e, f, g, a, b); 31 callWithDoubles(d, e, f, g, a, b, c); 32 } 33 callWithDoubles( double a, double b, double c, double d, double e, double f, double g)34 public static void callWithDoubles( 35 double a, double b, double c, double d, double e, double f, double g) { 36 System.out.println(a - b - c - d - e - f - g); 37 } 38 39 double a = 1.0; 40 double b = 2.0; 41 double c = 3.0; 42 double d = 4.0; 43 double e = 5.0; 44 double f = 6.0; 45 double g = 7.0; 46 } 47