04f5085dfe
The tests assert that funcs are optimized / deoptimized a certain way. Bug: v8:9237, v8:11138 Change-Id: Ia4879e722e442be52de0bf93919eb03fecb88147 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2529136 Reviewed-by: Michael Achenbach <machenbach@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#71087}
43 lines
1.2 KiB
JavaScript
43 lines
1.2 KiB
JavaScript
// Copyright 2020 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 --super-ic --opt
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// Flags: --no-always-opt --no-stress-opt --turboprop
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// Flags: --turboprop-dynamic-map-checks --deopt-every-n-times=0
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// This file contains tests which require --dynamic-map-chekcs.
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(function TestMinimorphicPropertyAccess() {
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class A {}
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A.prototype.bar = "wrong value: A.prototype.bar";
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class B extends A {};
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B.prototype.bar = "correct value";
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class C extends B {
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foo(should_bailout) {
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const r = super.bar;
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const did_bailout = (
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%GetOptimizationStatus(C.prototype.foo) &
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V8OptimizationStatus.kTopmostFrameIsTurboFanned) == 0;
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assertEquals(should_bailout, did_bailout);
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return r;
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}
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}
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C.prototype.bar = "wrong value: C.prototype.bar";
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%PrepareFunctionForOptimization(C.prototype.foo);
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let o = new C();
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o.bar = "wrong value: o.bar";
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// Fill in the feedback.
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let r = o.foo(true);
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assertEquals("correct value", r);
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%OptimizeFunctionOnNextCall(C.prototype.foo);
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// Test the optimized function.
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r = o.foo(false);
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assertEquals("correct value", r);
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})();
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