Ben Murdoch | b8a8cc1 | 2014-11-26 15:28:44 +0000 | [diff] [blame] | 1 | // Copyright 2014 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 () { |
| 8 | function f(a, b, mode) { |
| 9 | if (mode) { |
| 10 | return a === b; |
| 11 | } else { |
| 12 | return a === b; |
| 13 | } |
| 14 | } |
| 15 | |
| 16 | // Gather type feedback for both branches. |
| 17 | f("a", "b", 1); |
| 18 | f("c", "d", 1); |
| 19 | f("a", "b", 0); |
| 20 | f("c", "d", 0); |
| 21 | |
| 22 | function g(mode) { |
| 23 | var x = 1e10 | 0; |
| 24 | f(x, x, mode); |
| 25 | } |
| 26 | |
| 27 | // Gather type feedback for g, but only on one branch for f. |
| 28 | g(1); |
| 29 | g(1); |
| 30 | %OptimizeFunctionOnNextCall(g); |
| 31 | // Optimize g, which inlines f. Both branches in f will see the constant. |
| 32 | g(0); |
| 33 | })(); |
| 34 | |
| 35 | (function () { |
| 36 | function f(a, b, mode) { |
| 37 | if (mode) { |
| 38 | return a === b; |
| 39 | } else { |
| 40 | return a === b; |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | // Gather type feedback for both branches. |
| 45 | f({ a : 1}, {b : 1}, 1); |
| 46 | f({ c : 1}, {d : 1}, 1); |
| 47 | f({ a : 1}, {c : 1}, 0); |
| 48 | f({ b : 1}, {d : 1}, 0); |
| 49 | |
| 50 | function g(mode) { |
| 51 | var x = 1e10 | 0; |
| 52 | f(x, x, mode); |
| 53 | } |
| 54 | |
| 55 | // Gather type feedback for g, but only on one branch for f. |
| 56 | g(1); |
| 57 | g(1); |
| 58 | %OptimizeFunctionOnNextCall(g); |
| 59 | // Optimize g, which inlines f. Both branches in f will see the constant. |
| 60 | g(0); |
| 61 | })(); |