80 lines
2.5 KiB
JavaScript
80 lines
2.5 KiB
JavaScript
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// Copyright 2008 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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function dead1(a, b) {
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var x = a + b;
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return a; // x is dead
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}
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function dead2(a, b) {
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var x = a | 0;
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var y = b | 0;
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return a; // x and y are both dead
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}
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function dead3(a, b) {
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var z;
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if(a == 2) z = a;
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else z = b;
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return a; // z is dead
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}
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function dead4(a) {
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var z = 3;
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for (i = 0; i < 3; i++) {
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z++;
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}
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return a; // z is dead
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}
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function dead5(a) {
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var z = 3;
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for (i = 0; i < 3; i++) {
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z++;
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}
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var w = z + a;
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return a; // z is dead
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}
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assertTrue(dead1(33, 32) == 33);
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assertTrue(dead2(33, 32) == 33);
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assertTrue(dead3(33, 32) == 33);
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assertTrue(dead4(33) == 33);
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assertTrue(dead5(33) == 33);
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assertTrue(dead1(34, 7) == 34);
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assertTrue(dead2(34, 7) == 34);
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assertTrue(dead3(34, 7) == 34);
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assertTrue(dead4(34) == 34);
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assertTrue(dead5(34) == 34);
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assertTrue(dead1(3.4, 0.1) == 3.4);
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assertTrue(dead2(3.4, 0.1) == 3.4);
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assertTrue(dead3(3.4, 0.1) == 3.4);
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assertTrue(dead4(3.4) == 3.4);
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assertTrue(dead5(3.4) == 3.4);
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