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e31f0a7d25
PR-URL: https://github.com/nodejs/node/pull/28918 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Rich Trott <rtrott@gmail.com>
38 lines
1.0 KiB
JavaScript
38 lines
1.0 KiB
JavaScript
// Copyright 2015 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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// Flags: --allow-natives-syntax
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function loader(dst, src, i) {
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dst[i] = src[i];
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};
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%PrepareFunctionForOptimization(loader);
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var ab = new ArrayBuffer(8);
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var i_view = new Int32Array(ab);
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i_view[0] = %GetHoleNaNUpper();
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i_view[1] = %GetHoleNaNLower();
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var f_view = new Float64Array(ab);
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var fixed_double_elements = new Float64Array(1);
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function opt_store() {
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fixed_double_elements[0] = f_view[0];
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};
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%PrepareFunctionForOptimization(opt_store);
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opt_store();
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opt_store();
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%OptimizeFunctionOnNextCall(opt_store);
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opt_store();
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var i32 = new Int32Array(fixed_double_elements.buffer);
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assertEquals(i_view[0], i32[0]);
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assertEquals(i_view[1], i32[1]);
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var doubles = [0.5];
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loader(doubles, fixed_double_elements, 0);
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loader(doubles, fixed_double_elements, 0);
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%OptimizeFunctionOnNextCall(loader);
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loader(doubles, fixed_double_elements, 0);
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assertTrue(doubles[0] !== undefined);
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