9a26c1aee2
Moves the accumulator value on-heap to be restored in the InterpreterNotifyDeopt handler rather than explicitly setting the accumulator register. This allows it to be materialized correctly if required. BUG=v8:4678 LOG=N Review URL: https://codereview.chromium.org/1707133003 Cr-Commit-Position: refs/heads/master@{#34113}
42 lines
2.0 KiB
JavaScript
42 lines
2.0 KiB
JavaScript
// Copyright 2016 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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//
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// Tests that Turbofan correctly materializes values which are in the
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// interpreters accumulator during deopt.
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var global = 3;
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function f(a) {
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// This will trigger a deopt since global was previously a SMI, with the
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// accumulator holding an unboxed double which needs materialized.
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global = %_MathSqrt(a);
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}
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%OptimizeFunctionOnNextCall(f);
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f(0.25);
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assertEquals(0.5, global);
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