5e725575d7
The (KEYED_)LOAD/STORE_ICs didn't properly leave the UNINITIALIZED as long as the receiver was always null/undefined. This leads to deoptimization loops in TurboFan, because the compiler always put in a SOFT deoptimization at this point. Bug: v8:6989 Change-Id: I1a32bfb722f121f8b593e8972e657290d7b0531d Reviewed-on: https://chromium-review.googlesource.com/735319 Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> Commit-Queue: Benedikt Meurer <bmeurer@chromium.org> Cr-Commit-Position: refs/heads/master@{#48854}
86 lines
1.9 KiB
JavaScript
86 lines
1.9 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
|
|
|
|
(function() {
|
|
function foo(o) { o["x"] = 1; }
|
|
|
|
assertThrows(() => foo(undefined));
|
|
assertThrows(() => foo(undefined));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(undefined));
|
|
assertOptimized(foo);
|
|
})();
|
|
|
|
(function() {
|
|
function foo(o) { o["x"] = 1; }
|
|
|
|
assertThrows(() => foo(null));
|
|
assertThrows(() => foo(null));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(null));
|
|
assertOptimized(foo);
|
|
})();
|
|
|
|
(function() {
|
|
function foo(o) { return o["x"]; }
|
|
|
|
assertThrows(() => foo(undefined));
|
|
assertThrows(() => foo(undefined));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(undefined));
|
|
assertOptimized(foo);
|
|
})();
|
|
|
|
(function() {
|
|
function foo(o) { return o["x"]; }
|
|
|
|
assertThrows(() => foo(null));
|
|
assertThrows(() => foo(null));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(null));
|
|
assertOptimized(foo);
|
|
})();
|
|
|
|
(function() {
|
|
function foo(o) { o.x = 1; }
|
|
|
|
assertThrows(() => foo(undefined));
|
|
assertThrows(() => foo(undefined));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(undefined));
|
|
assertOptimized(foo);
|
|
})();
|
|
|
|
(function() {
|
|
function foo(o) { o.x = 1; }
|
|
|
|
assertThrows(() => foo(null));
|
|
assertThrows(() => foo(null));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(null));
|
|
assertOptimized(foo);
|
|
})();
|
|
|
|
(function() {
|
|
function foo(o) { return o.x; }
|
|
|
|
assertThrows(() => foo(undefined));
|
|
assertThrows(() => foo(undefined));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(undefined));
|
|
assertOptimized(foo);
|
|
})();
|
|
|
|
(function() {
|
|
function foo(o) { return o.x; }
|
|
|
|
assertThrows(() => foo(null));
|
|
assertThrows(() => foo(null));
|
|
%OptimizeFunctionOnNextCall(foo);
|
|
assertThrows(() => foo(null));
|
|
assertOptimized(foo);
|
|
})();
|