| // Copyright 2016 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: --expose-gc --min-semi-space-size=32 |
| |
| // We need to set --min-semi-space-size to enable allocation site pretenuring. |
| |
| function foo(i) { |
| with({}) {}; |
| x = {}; |
| x.a = 0.23; |
| x.b = 0.3; |
| return x; |
| } |
| |
| var all = []; |
| function step() { |
| for (var i = 0; i < 100; i++) { |
| var z = foo(i); |
| // Write unboxed double in object slack. |
| z.c = 0.1 + z.b |
| all.push(z); |
| } |
| gc(1); |
| gc(1); |
| } |
| |
| step(); |
| // Now foo will allocate objects in old space. |
| step(); |
