31a3cfbc10
BUG=v8:8801 Change-Id: I9d9d9824c6c9ad0176bbfd3723da1b578b17c256 Reviewed-on: https://chromium-review.googlesource.com/c/1495555 Commit-Queue: Ross McIlroy <rmcilroy@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Cr-Commit-Position: refs/heads/master@{#60001}
59 lines
1.3 KiB
JavaScript
59 lines
1.3 KiB
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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// Flags: --allow-natives-syntax
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// Check the results of `left >>> right`. The result is always unsigned (and
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// therefore positive).
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function test_shr(left) {
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var errors = 0;
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for (var i = 1; i < 1024; i++) {
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var temp = left >>> i;
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if (temp < 0) {
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errors++;
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}
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}
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return errors;
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}
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%PrepareFunctionForOptimization(test_shr);
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assertEquals(0, test_shr(1));
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%OptimizeFunctionOnNextCall(test_shr);
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for (var i = 5; i >= -5; i--) {
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assertEquals(0, test_shr(i));
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}
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(function () {
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function foo(x, b, array) {
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var y;
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x = x >>> 0;
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b ? (y = x | 0) : (y = x);
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return array[y];
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}
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%PrepareFunctionForOptimization(foo);
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foo(111, true, new Array(42));
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foo(111, true, new Array(42));
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%OptimizeFunctionOnNextCall(foo);
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foo(-111, true, new Array(42));
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})();
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(function () {
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function foo(x, b, array) {
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var y;
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x = x >>> 0;
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b ? (y = x | 0) : (y = x);
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return array[y];
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}
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%PrepareFunctionForOptimization(foo);
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foo(111, true, new Array(42));
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foo(111, true, new Array(42));
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%OptimizeFunctionOnNextCall(foo);
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foo(111, true, new Array(42));
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})();
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