f820041aba
This is a reland of 289b25765a.
The fix for failures landed here:
https://chromium-review.googlesource.com/c/v8/v8/+/1599388
Original change's description:
> [Test] Update tests to work with lazy feedback allocation.
>
> This adds either %EnsureFeedbackVectorForFunction or
> %PrepareFunctionForOptimization to allocate feedback vectors when testing
> optimization, allocation sites, IC transitions etc.,
>
> Bug: v8:8394
> Change-Id: I6ad1b6d460e4abda693b326cddb87754e080a0a1
> Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1593303
> Commit-Queue: Mythri Alle <mythria@chromium.org>
> Auto-Submit: Mythri Alle <mythria@chromium.org>
> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#61212}
Bug: v8:8394
Change-Id: Idb5bba221d138e6fd73155f959b9e16fc948c709
TBR: rmcilroy@chromium.org
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1599607
Reviewed-by: Mythri Alle <mythria@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Auto-Submit: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61332}
36 lines
708 B
JavaScript
36 lines
708 B
JavaScript
// 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
|
|
|
|
function g(y) { assertEquals(y, 12); }
|
|
|
|
var X = 0;
|
|
|
|
function foo () {
|
|
var cnt = 0;
|
|
var l = -1;
|
|
var x = 0;
|
|
while (1) switch (l) {
|
|
case -1:
|
|
var y = x + 12;
|
|
l = 0;
|
|
break;
|
|
case 0:
|
|
if (cnt++ == 5) {
|
|
%OptimizeOsr();
|
|
l = 1;
|
|
}
|
|
break;
|
|
case 1:
|
|
// This case will contain deoptimization
|
|
// because it has no type feedback.
|
|
g(y);
|
|
return;
|
|
};
|
|
}
|
|
|
|
%PrepareFunctionForOptimization(foo);
|
|
foo();
|