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1 // Copyright 2015 the V8 project authors. All rights reserved. | 1 // Copyright 2015 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Flags: --allow-natives-syntax | 5 // Flags: --allow-natives-syntax |
6 | 6 |
7 function loader(dst, src, i) { | 7 function loader(dst, src, i) { |
8 dst[i] = src[i]; | 8 dst[i] = src[i]; |
9 } | 9 } |
10 | 10 |
11 var ab = new ArrayBuffer(8); | 11 var ab = new ArrayBuffer(8); |
12 var i_view = new Int32Array(ab); | 12 var i_view = new Int32Array(ab); |
13 i_view[0] = 0xFFF7FFFF; | 13 i_view[0] = 0xFFF7FFFF; |
14 i_view[1] = 0xFFF7FFFF; | 14 i_view[1] = 0xFFF7FFFF; |
15 var f_view = new Float64Array(ab); | 15 var f_view = new Float64Array(ab); |
16 | 16 |
17 var fixed_double_elements = new Float64Array(1); | 17 var fixed_double_elements = new Float64Array(1); |
18 fixed_double_elements[0] = f_view[0]; | 18 |
| 19 function opt_store() { fixed_double_elements[0] = f_view[0]; } |
| 20 |
| 21 opt_store(); |
| 22 opt_store(); |
| 23 %OptimizeFunctionOnNextCall(opt_store); |
| 24 opt_store(); |
| 25 |
| 26 var i32 = new Int32Array(fixed_double_elements.buffer); |
| 27 assertEquals(i_view[0], i32[0]); |
| 28 assertEquals(i_view[1], i32[1]); |
19 | 29 |
20 var doubles = [0.5]; | 30 var doubles = [0.5]; |
21 loader(doubles, fixed_double_elements, 0); | 31 loader(doubles, fixed_double_elements, 0); |
22 loader(doubles, fixed_double_elements, 0); | 32 loader(doubles, fixed_double_elements, 0); |
23 %OptimizeFunctionOnNextCall(loader); | 33 %OptimizeFunctionOnNextCall(loader); |
24 loader(doubles, fixed_double_elements, 0); | 34 loader(doubles, fixed_double_elements, 0); |
25 assertTrue(doubles[0] !== undefined); | 35 assertTrue(doubles[0] !== undefined); |
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