v8/test/mjsunit/context-calls-maintained.js
Ross McIlroy 5b794a389b [Test] Add PrepareForOptimization to some mjsunit tests.
Bug: v8:8801, v8:8394
Change-Id: I6bb46ecafe1bd94adbf0409f13c9b2e558da0823
Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1594558
Commit-Queue: Ross McIlroy <rmcilroy@chromium.org>
Commit-Queue: Mythri Alle <mythria@chromium.org>
Auto-Submit: Ross McIlroy <rmcilroy@chromium.org>
Reviewed-by: Mythri Alle <mythria@chromium.org>
Cr-Commit-Position: refs/heads/master@{#61200}
2019-05-03 13:32:32 +00:00

121 lines
3.9 KiB
JavaScript

// Copyright 2013 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Flags: --expose-gc --allow-natives-syntax
function clear_all_ics() {
%NotifyContextDisposed();
gc();
gc();
gc();
}
// Test: verify that a monomorphic call retains the structural knowledge
// of a global call, correctly throwing either ReferenceError or
// TypeError on undefined depending on how the call is made.
(function() {
foo = function(arg) { return arg + 1; }
function f() { foo(1); }
// Drive to monomorphic
%PrepareFunctionForOptimization(f);
f(); f(); f();
delete foo;
assertThrows(function() { f(); }, ReferenceError);
foo = function(arg) { return arg * 2; }
assertDoesNotThrow(function() { f(); });
f(); f(); f();
delete foo;
assertThrows(function() { f(); }, ReferenceError);
clear_all_ics();
foo = function(arg) { return arg * 3; }
f();
%OptimizeFunctionOnNextCall(f);
f();
delete foo;
assertThrows(function() { f(); }, ReferenceError);
foo = function(arg) { return arg * 3; }
function g() { this.foo(1); }
%PrepareFunctionForOptimization(g);
g(); g(); g();
delete foo;
assertThrows(function() { g(); }, TypeError);
foo = function(arg) { return arg * 3; }
g();
%OptimizeFunctionOnNextCall(g);
g();
delete foo;
assertThrows(function() { g(); }, TypeError);
})();
// Test: verify that a load with IC does the right thing.
(function() {
var foo = function() { return a; };
%PrepareFunctionForOptimization(foo);
a = 3;
foo(); foo(); foo();
delete a;
assertThrows(function() { foo(); }, ReferenceError);
a = "hi";
foo();
clear_all_ics();
foo();
%OptimizeFunctionOnNextCall(foo);
foo();
delete a;
assertThrows(function() { foo(); }, ReferenceError);
foo = function() { return this.a; }
assertDoesNotThrow(function() { foo(); });
})();
// Test: verify that a store with IC does the right thing.
// If store is contextual and strict mode is set, throw a ReferenceError
// if the variable isn't found.
(function() {
var foo = function() { a = 3; }
var bar = function() { "use strict"; a = 3; };
%PrepareFunctionForOptimization(bar);
foo(); foo(); foo();
delete a;
assertThrows(function() { bar(); }, ReferenceError);
a = 6;
foo(); foo(); foo();
bar(); bar();
clear_all_ics();
bar();
%OptimizeFunctionOnNextCall(bar);
bar();
delete a;
assertThrows(function() { bar(); }, ReferenceError);
})();