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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 // Test inlining of simple function with control flow in an effect context. | 4 // Test inlining of simple function with control flow in an effect context. |
5 // Optimize function foo with instance of A and inlined function bar. Call later | 5 // Optimize function foo with instance of A and inlined function bar. Call later |
6 // with instance of B and cause deoptimization. | 6 // with instance of B and cause deoptimization. |
7 | 7 |
8 import "package:expect/expect.dart"; | |
9 | |
10 class A { | 8 class A { |
11 var x = 1; | 9 var x = 1; |
12 } | 10 } |
13 | 11 |
14 class B { | 12 class B { |
15 var x = 0; | 13 var x = 0; |
16 } | 14 } |
17 | 15 |
18 int bar(o) { | 16 int bar(o) { |
19 if (o.x > 0) { // <-- Deoptimize from inner frame. | 17 if (o.x > 0) { // <-- Deoptimize from inner frame. |
20 return 1; | 18 return 1; |
21 } else { | 19 } else { |
22 return 0; | 20 return 0; |
23 } | 21 } |
24 } | 22 } |
25 | 23 |
26 int foo(o) { | 24 int foo(o) { |
27 bar(o); // <-- Used in an effect context. | 25 bar(o); // <-- Used in an effect context. |
28 return 1; | 26 return 1; |
29 } | 27 } |
30 | 28 |
31 main() { | 29 main() { |
32 var o = new A(); | 30 var o = new A(); |
33 int sum = 0; | 31 int sum = 0; |
34 for (int i = 0; i < 5000; i++) sum += foo(o); | 32 for (int i = 0; i < 5000; i++) sum += foo(o); |
35 o = new B(); | 33 o = new B(); |
36 sum += foo(o); // <-- Cause deoptimization of bar within foo. | 34 sum += foo(o); // <-- Cause deoptimization of bar within foo. |
37 Expect.equals(5001, sum); | 35 Expect.equals(5001, sum); |
38 } | 36 } |
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