| // Copyright 2017 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Flags: --allow-natives-syntax --turbo-escape |
| |
| function foo() { |
| var a = {x:1}; |
| var b = {x:1.5, y: 1}; |
| var x = 0; |
| for (var i = 0; i < 1; i = {}) { |
| // The second iteration of this loop is dead code, leading to a |
| // contradiction between dynamic and static information. |
| x += a.x + 0.5; |
| x += a.x % 0.5; |
| x += Math.abs(a.x); |
| x += a.x < 6; |
| x += a.x === 7; |
| x += a.x <= 8; |
| a = b; |
| } |
| return x; |
| } |
| %PrepareFunctionForOptimization(foo); |
| foo(); |
| foo(); |
| %OptimizeFunctionOnNextCall(foo); |
| foo(); |