v8/test/mjsunit/regress/regress-5262.js
Leszek Swirski 66d5cebb49 Revert "[turbofan] Making OSR concurrent"
This reverts commit 9f902b7483.

Reason for revert: Reverting due to various fuzzing issues (numfuzz issues listed in original CL comments, ochang fuzzer in https://bugs.chromium.org/p/chromium/issues/detail?id=1299418)

Original change's description:
> [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}

Bug: v8:12161
Change-Id: Id6f6086517cd77fb1aa60b20fd03528b8e2ca686
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3477104
Auto-Submit: Leszek Swirski <leszeks@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Owners-Override: Leszek Swirski <leszeks@chromium.org>
Commit-Queue: Leszek Swirski <leszeks@chromium.org>
Cr-Commit-Position: refs/heads/main@{#79194}
2022-02-21 14:02:43 +00:00

28 lines
839 B
JavaScript

// 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: --ignition-osr --allow-natives-syntax
function g() { return 23 }
function h() { return 42 }
function boom(o) { o.g = h }
function f(osr_and_recurse) {
if (osr_and_recurse) {
for (var i = 0; i < 3; ++i) {
if (i == 1) %OptimizeOsr();
}
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
f(false); // Trigger tier-up due to recursive call.
boom(this); // Causes a deopt due to below dependency.
var x = g(); // Install dependency on the {g} function.
return x;
}
return 65;
}
%PrepareFunctionForOptimization(f);
assertEquals(65, f(false));
assertEquals(65, f(false));
assertEquals(42, f(true));