9b5c312bfc
Support a binary operation (bitwise OR) so long as it's not nested in the left subexpression. This ensures that the expression stack never has height greater than two and so can be kept fully in registers. The bounded expression stack height and the absence of any side effects on the fast path allows us to still bailout out to the very beginning of the function if any of our fast-path checks fail. Review URL: http://codereview.chromium.org/594008 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3822 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
65 lines
2.1 KiB
JavaScript
65 lines
2.1 KiB
JavaScript
// Copyright 2010 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: --fast-compiler
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// Test references to properties of this.
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function Test() {
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this.a = 0;
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this.b = 1;
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this.c = 2;
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this.d = 3;
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}
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Test.prototype.test0 = function () {
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this.a = this.b;
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};
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Test.prototype.test1 = function() {
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this.a = this.b = this.c;
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};
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Test.prototype.test2 = function() {
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this.c = this.d;
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this.b = this.c;
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this.a = this.b;
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};
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var t = new Test();
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t.test0();
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assertEquals(1, t.a);
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t.test1();
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assertEquals(2, t.a);
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assertEquals(2, t.b);
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t.test2();
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assertEquals(3, t.a);
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assertEquals(3, t.b);
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assertEquals(3, t.c);
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