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1 // Copyright 2011 the V8 project authors. All rights reserved. | 1 // Copyright 2013 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
11 // with the distribution. | 11 // with the distribution. |
12 // * Neither the name of Google Inc. nor the names of its | 12 // * Neither the name of Google Inc. nor the names of its |
13 // contributors may be used to endorse or promote products derived | 13 // contributors may be used to endorse or promote products derived |
14 // from this software without specific prior written permission. | 14 // from this software without specific prior written permission. |
15 // | 15 // |
16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | 16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | 17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | 18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | 19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | 20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | 21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | 22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | 23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | 24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | 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. | 26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | 27 |
28 // Flags: --allow-natives-syntax | 28 // Flags: --allow-natives-syntax |
| 29 // Test expressions that can be computed with a multiply-add instruction. |
29 | 30 |
30 // Test const initialization and assignments. | 31 function f(a, b, c) { |
31 function f() { | 32 return a - b * c; |
32 var x = 42; | |
33 while (true) { | |
34 const y = x; | |
35 if (--x == 0) return y; | |
36 } | |
37 } | 33 } |
38 | 34 |
39 function g() { | 35 function g(a, b, c) { |
40 const x = 42; | 36 return a * b - c; |
41 x += 1; | |
42 return x; | |
43 } | 37 } |
44 | 38 |
45 for (var i = 0; i < 5; i++) { | 39 function h(a, b, c, d) { |
46 f(); | 40 return a * b - c * d; |
47 g(); | |
48 } | 41 } |
49 | 42 |
| 43 assertEquals(-5.41, f(1.1, 2.1, 3.1)); |
| 44 assertEquals(-5.41, f(1.1, 2.1, 3.1)); |
50 %OptimizeFunctionOnNextCall(f); | 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)); |
51 %OptimizeFunctionOnNextCall(g); | 50 %OptimizeFunctionOnNextCall(g); |
| 51 assertEquals(8.36, g(2.2, 3.3, -1.1)); |
52 | 52 |
53 assertEquals(42, f()); | 53 assertEquals(-1.5, h(1.5, 3.0, 12, 0.5)); |
54 assertEquals(42, g()); | 54 assertEquals(-1.5, h(1.5, 3.0, 12, 0.5)); |
55 | |
56 | |
57 function h(a, b) { | |
58 var r = a + b; | |
59 const X = 42; | |
60 return r + X; | |
61 } | |
62 | |
63 for (var i = 0; i < 5; i++) h(1,2); | |
64 | |
65 %OptimizeFunctionOnNextCall(h); | 55 %OptimizeFunctionOnNextCall(h); |
66 | 56 assertEquals(-1.5, h(1.5, 3.0, 12, 0.5)); |
67 assertEquals(45, h(1,2)); | |
68 assertEquals("foo742", h("foo", 7)); | |
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