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sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
99 lines
2.8 KiB
JavaScript
99 lines
2.8 KiB
JavaScript
// Copyright 2012 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: --allow-natives-syntax --opt --no-always-opt
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function divp4(x) {
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return x / 4;
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}
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divp4(8);
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divp4(8);
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%OptimizeFunctionOnNextCall(divp4);
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assertEquals(2, divp4(8));
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assertEquals(0.5, divp4(2));
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function divn4(x) {
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return x / (-4);
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}
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divn4(8);
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divn4(8);
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%OptimizeFunctionOnNextCall(divn4);
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assertEquals(-2, divn4(8));
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// Check for (0 / -x)
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assertEquals(-0, divn4(0));
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// Check for (kMinInt / -1)
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function divn1(x) {
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return x / (-1);
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}
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var two_31 = 1 << 31;
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divn1(2);
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divn1(2);
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%OptimizeFunctionOnNextCall(divn1);
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assertEquals(-2, divn1(2));
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assertEquals(-two_31, divn1(two_31));
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//Check for truncating to int32 case
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function divp4t(x) {
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return (x / 4) | 0;
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}
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divp4t(8);
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divp4t(8);
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%OptimizeFunctionOnNextCall(divp4t);
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assertEquals(-1, divp4t(-5));
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assertEquals(1, divp4t(5));
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assertOptimized(divp4t);
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function divn4t(x) {
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return (x / -4) | 0;
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}
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divn4t(8);
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divn4t(8);
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%OptimizeFunctionOnNextCall(divn4t);
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assertEquals(1, divn4t(-5));
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assertEquals(-1, divn4t(5));
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assertOptimized(divn4t);
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// Check kMinInt case.
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function div_by_two(x) {
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return (x / 2) | 0;
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}
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div_by_two(12);
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div_by_two(34);
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%OptimizeFunctionOnNextCall(div_by_two);
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div_by_two(56);
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assertEquals(-(1 << 30), div_by_two(1 << 31));
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