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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 --noverify-heap --noenable-slow-asserts | 5 // Flags: --allow-natives-syntax --noverify-heap --noenable-slow-asserts |
| 6 // Flags: --crankshaft --no-always-opt |
6 | 7 |
7 // --noverify-heap and --noenable-slow-asserts are set because the test is too | 8 // --noverify-heap and --noenable-slow-asserts are set because the test is too |
8 // slow with it on. | 9 // slow with it on. |
9 | 10 |
10 // Ensure that keyed stores work, and optimized functions learn if the | 11 // Ensure that keyed stores work, and optimized functions learn if the |
11 // store required change to dictionary mode. Verify that stores that grow | 12 // store required change to dictionary mode. Verify that stores that grow |
12 // the array into large object space don't cause a deopt. | 13 // the array into large object space don't cause a deopt. |
13 (function() { | 14 (function() { |
14 var a = []; | 15 var a = []; |
15 | 16 |
16 function foo(a, i) { | 17 function foo(a, i) { |
17 a[i] = 5.3; | 18 a[i] = 5.3; |
18 } | 19 } |
19 | 20 |
20 foo(a, 1); | 21 foo(a, 1); |
21 foo(a, 2); | 22 foo(a, 2); |
22 foo(a, 3); | 23 foo(a, 3); |
(...skipping 30 matching lines...) Expand all Loading... |
53 a[i] = 50; | 54 a[i] = 50; |
54 } | 55 } |
55 | 56 |
56 // The KeyedStoreIC will learn GROW_MODE. | 57 // The KeyedStoreIC will learn GROW_MODE. |
57 foo2(a, 10); | 58 foo2(a, 10); |
58 foo2(a, 12); | 59 foo2(a, 12); |
59 foo2(a, 31); | 60 foo2(a, 31); |
60 %OptimizeFunctionOnNextCall(foo2); | 61 %OptimizeFunctionOnNextCall(foo2); |
61 foo2(a, 40); | 62 foo2(a, 40); |
62 | 63 |
63 // This test is way too slow without crankshaft. | 64 assertOptimized(foo2); |
64 if (4 != %GetOptimizationStatus(foo2)) { | 65 assertTrue(%HasFastSmiElements(a)); |
65 assertOptimized(foo2); | |
66 assertTrue(%HasFastSmiElements(a)); | |
67 | 66 |
68 // Grow a large array into large object space through the keyed store | 67 // Grow a large array into large object space through the keyed store |
69 // without deoptimizing. Grow by 10s. If we set elements too sparsely, the | 68 // without deoptimizing. Grow by 10s. If we set elements too sparsely, the |
70 // array will convert to dictionary mode. | 69 // array will convert to dictionary mode. |
71 a = new Array(99999); | 70 a = new Array(99999); |
72 assertTrue(%HasFastSmiElements(a)); | 71 assertTrue(%HasFastSmiElements(a)); |
73 for (var i = 0; i < 263000; i += 10) { | 72 for (var i = 0; i < 263000; i += 10) { |
74 foo2(a, i); | 73 foo2(a, i); |
75 } | 74 } |
76 | 75 |
77 // Verify that we are over 1 page in size, and foo2 remains optimized. | 76 // Verify that we are over 1 page in size, and foo2 remains optimized. |
78 // This means we've smoothly transitioned to allocating in large object | 77 // This means we've smoothly transitioned to allocating in large object |
79 // space. | 78 // space. |
80 assertTrue(%HasFastSmiElements(a)); | 79 assertTrue(%HasFastSmiElements(a)); |
81 assertTrue(a.length * 4 > (1024 * 1024)); | 80 assertTrue(a.length * 4 > (1024 * 1024)); |
82 assertOptimized(foo2); | 81 assertOptimized(foo2); |
83 } | |
84 | 82 |
85 %ClearFunctionTypeFeedback(foo2); | 83 %ClearFunctionTypeFeedback(foo2); |
86 })(); | 84 })(); |
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