61ce45c9e2
With bytecode flushing and lazy feedback allocation, we need to call %PrepareForOptimization before we call %OptimizeFunctionOnNextCall, ideally after declaring the function. Bug: v8:8801, v8:8394, v8:9183 Change-Id: I6bf119e726426df8527d97546b6ce806112c894d Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1643167 Auto-Submit: Mathias Bynens <mathias@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Commit-Queue: Mathias Bynens <mathias@chromium.org> Cr-Commit-Position: refs/heads/master@{#61988}
78 lines
1.6 KiB
JavaScript
78 lines
1.6 KiB
JavaScript
// Copyright 2016 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 f(x, len) {
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var distraction = [];
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var result = new Array(25);
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// Create a bunch of double values with long live ranges.
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var d0 = x + 0.5;
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var d1 = x + 1.5;
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var d2 = x + 2.5;
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var d3 = x + 3.5;
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var d4 = x + 4.5;
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var d5 = x + 5.5;
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var d6 = x + 6.5;
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var d7 = x + 7.5;
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var d8 = x + 8.5;
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var d9 = x + 9.5;
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var d10 = x + 10.5;
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var d11 = x + 11.5;
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var d12 = x + 12.5;
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var d13 = x + 13.5;
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var d14 = x + 14.5;
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var d15 = x + 15.5;
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var d16 = x + 16.5;
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var d17 = x + 17.5;
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var d18 = x + 18.5;
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var d19 = x + 19.5;
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var d20 = x + 20.5;
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var d21 = x + 21.5;
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var d22 = x + 22.5;
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var d23 = x + 23.5;
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var d24 = x + 24.5;
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// Trigger a stub failure when the array grows too big.
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distraction[len] = 0;
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// Write the long-lived doubles to memory and verify them.
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result[0] = d0;
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result[1] = d1;
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result[2] = d2;
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result[3] = d3;
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result[4] = d4;
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result[5] = d5;
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result[6] = d6;
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result[7] = d7;
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result[8] = d8;
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result[9] = d9;
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result[10] = d10;
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result[11] = d11;
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result[12] = d12;
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result[13] = d13;
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result[14] = d14;
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result[15] = d15;
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result[16] = d16;
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result[17] = d17;
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result[18] = d18;
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result[19] = d19;
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result[20] = d20;
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result[21] = d21;
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result[22] = d22;
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result[23] = d23;
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result[24] = d24;
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for (var i = 0; i < result.length; i++) {
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assertEquals(x + i + 0.5, result[i]);
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}
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}
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%PrepareFunctionForOptimization(f);
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f(0, 10);
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f(0, 10);
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%OptimizeFunctionOnNextCall(f);
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f(0, 80000);
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