v8/test/mjsunit/compiler/simple-bailouts.js
kasperl@chromium.org 90b3370374 Update V8 to version 3.0 (re-land r5920).
git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5922 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-12-07 11:31:57 +00:00

144 lines
3.7 KiB
JavaScript

// Copyright 2010 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.
function Test() {
this.result = 0;
this.x = 0;
this.y = 0;
this.z = 0;
}
var a = 1;
var b = 2;
var c = 4;
var d = 8;
// Test operations expected to stay on the fast path. Enumerate all binary
// trees with <= 4 leaves.
Test.prototype.test0 = function () {
this.result = a | b;
};
Test.prototype.test1 = function() {
this.result = (a | b) | c;
};
Test.prototype.test2 = function() {
this.result = a | (b | c);
};
Test.prototype.test3 = function() {
this.result = ((a | b) | c) | d;
};
Test.prototype.test4 = function() {
this.result = (a | (b | c)) | d;
};
Test.prototype.test5 = function() {
this.result = (a | b) | (c | d);
};
Test.prototype.test6 = function() {
this.result = a | ((b | c) | d);
};
Test.prototype.test7 = function() {
this.result = a | (b | (c | d));
};
// These tests should fail if we bailed out to the beginning of the full
// code.
Test.prototype.test8 = function () {
// If this.x = 1 and a = 1.1:
this.y = this.x | b; // Should be (1 | 2) == 3.
this.x = c; // Should be 4.
this.z = this.x | a; // Should be (4 | 1.1) == 5.
};
Test.prototype.test9 = function() {
// If this.x = 2 and a = 1.1:
this.z = // (14 | 1.1) == 15
(this.x = // (6 | 8) == 14
(this.y = // (2 | 4) == 6
this.x // 2
| c) // 4
| d) // 8
| a; // 1.1
}
Test.prototype.test10 = function() {
this.z = (a >> b) | (c >> c);
}
Test.prototype.test11 = function(x) {
this.z = x >> x;
}
var t = new Test();
t.test0();
assertEquals(3, t.result);
t.test1();
assertEquals(7, t.result);
t.test2();
assertEquals(7, t.result);
t.test3();
assertEquals(15, t.result);
t.test4();
assertEquals(15, t.result);
t.test5();
assertEquals(15, t.result);
t.test6();
assertEquals(15, t.result);
t.test7();
assertEquals(15, t.result);
a = 1.1;
t.x = 1;
t.test8();
assertEquals(4, t.x);
assertEquals(3, t.y);
assertEquals(5, t.z);
t.x = 2;
t.test9();
assertEquals(14, t.x);
assertEquals(6, t.y);
assertEquals(15, t.z);
a = "2";
t.test11(a);
assertEquals(0, t.z);
a = 4;
b = "1";
c = 2;
t.test10();
assertEquals(2, t.z);