e3e7daf01c
to be on the global object. Previously, this information was stored in RelocInfo. A more logical place for this kind of structural information is ExtraICState. Storing it there makes it easier for us to gather type feedback from these sites too. R=verwaest@chromium.org Review URL: https://codereview.chromium.org/96083005 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@18466 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
117 lines
3.7 KiB
JavaScript
117 lines
3.7 KiB
JavaScript
// Copyright 2013 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// Flags: --expose-gc --allow-natives-syntax
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function clear_all_ics() {
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%NotifyContextDisposed();
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gc();
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gc();
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gc();
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}
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// Test: verify that a monomorphic call retains the structural knowledge
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// of a global call, correctly throwing either ReferenceError or
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// TypeError on undefined depending on how the call is made.
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(function() {
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foo = function(arg) { return arg + 1; }
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function f() { foo(1); }
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// Drive to monomorphic
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f(); f(); f();
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delete foo;
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assertThrows(function() { f(); }, ReferenceError);
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foo = function(arg) { return arg * 2; }
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assertDoesNotThrow(function() { f(); });
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f(); f(); f();
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delete foo;
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assertThrows(function() { f(); }, ReferenceError);
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clear_all_ics();
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foo = function(arg) { return arg * 3; }
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f();
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%OptimizeFunctionOnNextCall(f);
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f();
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delete foo;
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assertThrows(function() { f(); }, ReferenceError);
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foo = function(arg) { return arg * 3; }
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function g() { this.foo(1); }
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g(); g(); g();
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delete foo;
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assertThrows(function() { g(); }, TypeError);
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foo = function(arg) { return arg * 3; }
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g();
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%OptimizeFunctionOnNextCall(g);
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g();
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delete foo;
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assertThrows(function() { g(); }, TypeError);
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})();
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// Test: verify that a load with IC does the right thing.
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(function() {
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var foo = function() { return a; }
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a = 3;
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foo(); foo(); foo();
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delete a;
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assertThrows(function() { foo(); }, ReferenceError);
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a = "hi";
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foo();
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clear_all_ics();
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foo();
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%OptimizeFunctionOnNextCall(foo);
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foo();
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delete a;
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assertThrows(function() { foo(); }, ReferenceError);
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foo = function() { return this.a; }
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assertDoesNotThrow(function() { foo(); });
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})();
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// Test: verify that a store with IC does the right thing.
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// If store is contextual and strict mode is set, throw a ReferenceError
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// if the variable isn't found.
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(function() {
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var foo = function() { a = 3; }
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var bar = function() { "use strict"; a = 3; }
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foo(); foo(); foo();
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delete a;
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assertThrows(function() { bar(); }, ReferenceError);
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a = 6;
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foo(); foo(); foo();
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bar(); bar();
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clear_all_ics();
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bar();
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%OptimizeFunctionOnNextCall(bar);
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bar();
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delete a;
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assertThrows(function() { bar(); }, ReferenceError);
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})();
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