c3af691e72
With Int32Add we lose the int/uint distinction, so later, in simplified lowering we can make a wrong decision. E.g., see the attached test case, where we lower NumberAdd -> Int32Add because inputs are Uint32, but during simplified lowering we change the inputs to Int32, so we get a wrong result. Simplified lowering will lower the NumberAdd operations anyway, so we should lose performance. BUG= R=bmeurer@chromium.org Review URL: https://codereview.chromium.org/721723004 Cr-Commit-Position: refs/heads/master@{#25368}
11 lines
266 B
JavaScript
11 lines
266 B
JavaScript
// Copyright 2014 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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function f(a) {
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var x = a >>> 0;
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return (x * 1.0 + x * 1.0) << 0;
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}
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assertEquals(-2, f(-1));
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