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}
28 lines
604 B
JavaScript
28 lines
604 B
JavaScript
// Copyright 2017 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 C1() { }
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C1.prototype.f = function () { return 1; }
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function C2() { }
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C2.prototype.f = function () { throw 2; }
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var o1 = new C1();
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var o2 = new C2();
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function foo(o) {
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return o.f();
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}
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%PrepareFunctionForOptimization(foo);
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foo(o1);
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try { foo(o2); } catch(e) {}
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foo(o1);
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try { foo(o2); } catch(e) {}
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%OptimizeFunctionOnNextCall(foo);
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assertEquals(1, foo(o1));
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assertThrows(() => foo(o2));
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