Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 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 | var m = (function() { |
| 8 | "use asm"; |
| 9 | function f(x) { |
| 10 | return x < 0; |
| 11 | } |
| 12 | function g(x) { |
| 13 | return 0 < x; |
| 14 | } |
| 15 | return { f: f, g: g }; |
| 16 | })(); |
| 17 | var f = m.f; |
| 18 | var g = m.g; |
| 19 | |
| 20 | var counter = 0; |
| 21 | |
| 22 | function deopt(f) { |
| 23 | return { |
| 24 | toString : function() { |
| 25 | %DeoptimizeFunction(f); |
| 26 | counter++; |
| 27 | return "2"; |
| 28 | } |
| 29 | }; |
| 30 | } |
| 31 | |
| 32 | assertEquals(false, f(deopt(f))); |
| 33 | assertEquals(1, counter); |
| 34 | |
| 35 | assertEquals(true, g(deopt(g))); |
| 36 | assertEquals(2, counter); |
| 37 | |
| 38 | %OptimizeFunctionOnNextCall(f); |
| 39 | assertEquals(false, f(deopt(f))); |
| 40 | assertEquals(3, counter); |
| 41 | |
| 42 | %OptimizeFunctionOnNextCall(g); |
| 43 | assertEquals(true, g(deopt(g))); |
| 44 | assertEquals(4, counter); |