1 // Copyright 2013 the V8 project authors. All rights reserved. 2 // Redistribution and use in source and binary forms, with or without 3 // modification, are permitted provided that the following conditions are 4 // met: 5 // 6 // * Redistributions of source code must retain the above copyright 7 // notice, this list of conditions and the following disclaimer. 8 // * Redistributions in binary form must reproduce the above 9 // copyright notice, this list of conditions and the following 10 // disclaimer in the documentation and/or other materials provided 11 // with the distribution. 12 // * Neither the name of Google Inc. nor the names of its 13 // contributors may be used to endorse or promote products derived 14 // from this software without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 28 // Flags: --allow-natives-syntax 29 // Test expressions that can be computed with a multiply-add instruction. 30 31 function f(a, b, c) { 32 return a - b * c; 33 } 34 35 function g(a, b, c) { 36 return a * b - c; 37 } 38 39 function h(a, b, c, d) { 40 return a * b - c * d; 41 } 42 43 assertEquals(-5.41, f(1.1, 2.1, 3.1)); 44 assertEquals(-5.41, f(1.1, 2.1, 3.1)); 45 %OptimizeFunctionOnNextCall(f); 46 assertEquals(-5.41, f(1.1, 2.1, 3.1)); 47 48 assertEquals(8.36, g(2.2, 3.3, -1.1)); 49 assertEquals(8.36, g(2.2, 3.3, -1.1)); 50 %OptimizeFunctionOnNextCall(g); 51 assertEquals(8.36, g(2.2, 3.3, -1.1)); 52 53 assertEquals(-1.5, h(1.5, 3.0, 12, 0.5)); 54 assertEquals(-1.5, h(1.5, 3.0, 12, 0.5)); 55 %OptimizeFunctionOnNextCall(h); 56 assertEquals(-1.5, h(1.5, 3.0, 12, 0.5)); 57
