d22884ef02
Bug: v8:8801, v8:8394, v8:9183 Change-Id: Ie2858af4863511d5f67b662ac6f6f79512f55e7e Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1662307 Commit-Queue: Mythri Alle <mythria@chromium.org> Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Ross McIlroy <rmcilroy@chromium.org> Cr-Commit-Position: refs/heads/master@{#62223}
69 lines
2.3 KiB
JavaScript
69 lines
2.3 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: --allow-natives-syntax
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// Load fields should not be hoisted beyond their check maps when the check maps
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// cannot be hoisted due to changes in elements kinds.
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function f(o, a) {
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var v;
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var i = 1;
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while (i < 2) {
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v = o.y;
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a[0] = 1.5;
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i++;
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}
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return v;
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}
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%PrepareFunctionForOptimization(f);
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f({y:1.4}, [1]);
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f({y:1.6}, [1]);
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%OptimizeFunctionOnNextCall(f);
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f({x:1}, [1]);
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// Polymorphic loads should not be hoisted beyond their compare maps.
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function f2(o) {
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var i = 0;
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var v;
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while (i < 1) {
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v = o.x;
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i++;
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}
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return v;
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}
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var o1 = { x: 1.5 };
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var o2 = { y: 1, x: 1 };
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%PrepareFunctionForOptimization(f2);
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f2(o1);
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f2(o1);
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f2(o2);
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%OptimizeFunctionOnNextCall(f2);
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f2(o2);
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