v8/test/mjsunit/compiler/osr-one.js
Fanchen Kong 9f902b7483 [turbofan] Making OSR concurrent
... to reduce compilation overhead on the main thread for OSR

Bug: v8:12161
Change-Id: I54ca5fa6201405daf92dac9cf51d5de4b46577b3
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3369361
Reviewed-by: Jakob Gruber <jgruber@chromium.org>
Reviewed-by: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Fanchen Kong <fanchen.kong@intel.com>
Cr-Commit-Position: refs/heads/main@{#79188}
2022-02-21 09:40:10 +00:00

22 lines
470 B
JavaScript

// Copyright 2013 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: --use-osr --allow-natives-syntax
function f(x) {
var sum = 0;
var count = 10;
while (count > 0) {
sum += x;
count--;
if (count == 5 || count == 4) {
%OptimizeOsr(0, "concurrent");
}
}
return sum;
}
%PrepareFunctionForOptimization(f);
assertEquals(50, f(5));