cfbf9e0d14
PR-URL: https://github.com/nodejs/node/pull/52465 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Rafael Gonzaga <rafael.nunu@hotmail.com> Reviewed-By: Michael Dawson <midawson@redhat.com>
49 lines
1014 B
JavaScript
49 lines
1014 B
JavaScript
// Copyright 2024 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 --maglev --maglev-inlining
|
|
// Flags: --maglev-escape-analysis
|
|
|
|
var d = false;
|
|
|
|
function bar() {
|
|
if (d) {
|
|
// This shoud access 'o' defined in foo, but its allocation was
|
|
// removed since there was no use.
|
|
throw foo_inlined.arguments[0].x;
|
|
}
|
|
}
|
|
|
|
function foo_inlined() {
|
|
bar();
|
|
}
|
|
|
|
function foo() {
|
|
var o = {x: 1};
|
|
foo_inlined(o);
|
|
};
|
|
|
|
%PrepareFunctionForOptimization(foo_inlined);
|
|
%PrepareFunctionForOptimization(foo);
|
|
foo();
|
|
foo();
|
|
%OptimizeMaglevOnNextCall(foo);
|
|
|
|
// This does not crash, but it messes the stack up!
|
|
d = true;
|
|
try { foo(); } catch (e) {}
|
|
|
|
// We force some deopt that causes the crash.
|
|
|
|
function deopt() {}
|
|
function crash() {
|
|
deopt(); // Deopt, since no feedback.
|
|
};
|
|
|
|
%PrepareFunctionForOptimization(crash);
|
|
%OptimizeMaglevOnNextCall(crash);
|
|
|
|
|
|
crash(); // Deopt and crash!!
|