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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 a test context. | 4 // Test inlining of simple function with control flow in a test 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 // VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-co
mpilation | 7 // VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-co
mpilation |
8 | 8 |
9 import "package:expect/expect.dart"; | 9 import "package:expect/expect.dart"; |
10 | 10 |
11 class A { | 11 class A { |
12 var x = 1; | 12 var x = 1; |
13 } | 13 } |
14 | 14 |
15 class B { | 15 class B { |
16 var x = 0; | 16 var x = 0; |
17 } | 17 } |
18 | 18 |
19 bool bar(o) { | 19 bool bar(o) { |
20 if (o.x > 0) { // <-- Deoptimize from inner frame. | 20 if (o.x > 0) { |
| 21 // <-- Deoptimize from inner frame. |
21 return true; | 22 return true; |
22 } else { | 23 } else { |
23 return false; | 24 return false; |
24 } | 25 } |
25 } | 26 } |
26 | 27 |
27 int foo(o) { | 28 int foo(o) { |
28 if (bar(o)) { // <-- Used in a test context. | 29 if (bar(o)) { |
| 30 // <-- Used in a test context. |
29 return 1; | 31 return 1; |
30 } else { | 32 } else { |
31 return 0; | 33 return 0; |
32 } | 34 } |
33 } | 35 } |
34 | 36 |
35 main() { | 37 main() { |
36 var o = new A(); | 38 var o = new A(); |
37 int sum = 0; | 39 int sum = 0; |
38 for (int i = 0; i < 20; i++) sum += foo(o); | 40 for (int i = 0; i < 20; i++) sum += foo(o); |
39 o = new B(); | 41 o = new B(); |
40 sum += foo(o); // <-- Cause deoptimization of bar within foo. | 42 sum += foo(o); // <-- Cause deoptimization of bar within foo. |
41 Expect.equals(20, sum); | 43 Expect.equals(20, sum); |
42 } | 44 } |
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