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 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 5 | // Flags: --allow-natives-syntax --use-osr |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 6 | |
| 7 | "use strict"; |
| 8 | |
| 9 | function nest(body, name, depth) { |
| 10 | var header = ""; |
| 11 | for (var i = 0; i < depth; i++) { |
| 12 | var x = "x" + (i + 1); |
| 13 | header += " for(var " + x + " = 0; " + x + " < 2; " + x + " = " + x + " + 1 | 0) {\n"; |
| 14 | body = body + "}" |
| 15 | } |
| 16 | |
| 17 | return body.replace(new RegExp("function " + name + "\\(\\) {"), |
| 18 | "function " + name + "_" + x + "() {\n" + header); |
| 19 | } |
| 20 | |
| 21 | function test(expected, func, depth) { |
| 22 | assertEquals(expected, func()); |
| 23 | assertEquals(expected, func()); |
| 24 | assertEquals(expected, func()); |
| 25 | |
| 26 | var orig = func.toString(); |
| 27 | var name = func.name; |
| 28 | for (var depth = 1; depth < 4; depth++) { |
| 29 | var body = nest(orig, name, depth); |
| 30 | func = eval("(" + body + ")"); |
| 31 | |
| 32 | assertEquals(expected, func()); |
| 33 | assertEquals(expected, func()); |
| 34 | assertEquals(expected, func()); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | function foo() { |
| 39 | var result; |
| 40 | { |
| 41 | let sum = 0; |
| 42 | for (var i = 0; i < 10; i++) { |
| 43 | %OptimizeOsr(); |
| 44 | sum += i; |
| 45 | } |
| 46 | result = sum; |
| 47 | } |
| 48 | return result; |
| 49 | } |
| 50 | |
| 51 | test(45, foo); |
| 52 | |
| 53 | function bar() { |
| 54 | let sum = 0; |
| 55 | for (var i = 0; i < 10; i++) { |
| 56 | %OptimizeOsr(); |
| 57 | sum += i; |
| 58 | } |
| 59 | return sum; |
| 60 | } |
| 61 | |
| 62 | test(45, bar); |
| 63 | |
| 64 | function bon() { |
| 65 | { |
| 66 | let sum = 0; |
| 67 | for (var i = 0; i < 10; i++) { |
| 68 | if (i == 5) %OptimizeOsr(); |
| 69 | sum += i; |
| 70 | } |
| 71 | return sum; |
| 72 | } |
| 73 | } |
| 74 | |
| 75 | test(45, bon); |
| 76 | |
| 77 | function row() { |
| 78 | var i = 0; |
| 79 | { |
| 80 | let sum = 0; |
| 81 | while (true) { |
| 82 | if (i == 8) return sum; |
| 83 | %OptimizeOsr(); |
| 84 | sum = i; |
| 85 | i = i + 1 | 0; |
| 86 | } |
| 87 | } |
| 88 | return 11; |
| 89 | } |
| 90 | |
| 91 | test(7, row); |
| 92 | |
| 93 | function nub() { |
| 94 | let i = 0; |
| 95 | while (i < 2) { |
| 96 | %OptimizeOsr(); |
| 97 | i++; |
| 98 | } |
| 99 | return i; |
| 100 | } |
| 101 | |
| 102 | test(2, nub); |
| 103 | |
| 104 | function kub() { |
| 105 | var result = 0; |
| 106 | let i = 0; |
| 107 | while (i < 2) { |
| 108 | let x = i; |
| 109 | %OptimizeOsr(); |
| 110 | i++; |
| 111 | result = x; |
| 112 | } |
| 113 | return result; |
| 114 | } |
| 115 | |
| 116 | test(1, kub); |