v8/test/mjsunit/compiler/stress-deopt-count-2.js
Ross McIlroy 31a3cfbc10 [Test] Add PrepareForOptimization to mjsunit/compiler
BUG=v8:8801

Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256
Reviewed-on: https://chromium-review.googlesource.com/c/1495555
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#60001}
2019-03-04 12:25:41 +00:00

51 lines
1.0 KiB
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 --opt --no-always-opt --deopt-every-n-times=6
// Check that stress deopt count resets correctly
// Function with two deopt points
function f(x) {
return x + 1;
}
%PrepareFunctionForOptimization(f);
f(1);
%OptimizeFunctionOnNextCall(f);
// stress_deopt_count == 6
f(1);
assertOptimized(f, undefined, undefined, false);
// stress_deopt_count == 4
f(1);
assertOptimized(f, undefined, undefined, false);
// stress_deopt_count == 2
f(1);
// deopt & counter reset
assertUnoptimized(f, undefined, undefined, false);
// stress_deopt_count == 6
%PrepareFunctionForOptimization(f);
%OptimizeFunctionOnNextCall(f);
f(1);
assertOptimized(f, undefined, undefined, false);
// stress_deopt_count == 4
f(1);
assertOptimized(f, undefined, undefined, false);
// stress_deopt_count == 2
f(1);
// deopt & counter reset
assertUnoptimized(f, undefined, undefined, false);