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Issue 1084533003: Revert of [turbofan] Optimize loads from the global object in JSTypeFeedbackSpecializer. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 5 years, 7 months ago
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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
3 // found in the LICENSE file.
4
5 // Flags: --allow-natives-syntax
6
7 function test(expected, f) {
8 assertEquals(expected, f());
9 assertEquals(expected, f());
10 %OptimizeFunctionOnNextCall(f);
11 assertEquals(expected, f());
12 assertEquals(expected, f());
13 }
14
15 function testThrows(f) {
16 assertThrows(f);
17 assertThrows(f);
18 %OptimizeFunctionOnNextCall(f);
19 assertThrows(f);
20 assertThrows(f);
21 }
22
23 // --- Constant case.
24 a = 11;
25
26 function f1() { return a; }
27 test(11, f1);
28
29 delete a;
30
31 testThrows(f1);
32
33
34 // --- SMI case.
35
36 b = 11;
37 b = 12;
38 b = 13;
39
40 function f2() { return b; }
41 test(13, f2);
42
43 delete b;
44
45 testThrows(f2);
46
47
48 // --- double case.
49
50 c = 11;
51 c = 12.25;
52 c = 13.25;
53
54 function f3() { return c; }
55 test(13.25, f3);
56
57 delete c;
58
59 testThrows(f3);
60
61
62 // --- tagged case.
63
64 d = 11;
65 d = 12.25;
66 d = "hello";
67
68 function f4() { return d; }
69 test("hello", f4);
70
71 delete d;
72
73 testThrows(f4);
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