3edf54337a
... to --turbo-dynamic-map-checks. With the upcoming use in NCI code, this feature is no longer used exclusively by Turboprop. Bug: v8:8888 Change-Id: I61e01db086fd2e8566d2e2a09574be74b6e5a7bd Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2546693 Commit-Queue: Mythri Alle <mythria@chromium.org> Reviewed-by: Mythri Alle <mythria@chromium.org> Auto-Submit: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#71263}
37 lines
867 B
JavaScript
37 lines
867 B
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 --turboprop --turbo-dynamic-map-checks --opt
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// Flags: --no-always-opt
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function load(obj){
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return obj.x;
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}
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var o = {x:20, y:30};
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var o1 = {x:20, y:30, z:40};
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%PrepareFunctionForOptimization(load);
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load(o);
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load(o1);
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%OptimizeFunctionOnNextCall(load);
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load(o);
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load(o1);
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assertOptimized(load);
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// deprecate maps in IC
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o.x = 21.32;
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o1.x = 21.32;
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// transition poly -> mono
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var o2 = {y:20, x:20};
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// This bails out to interpreter and updates the IC state
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load(o2);
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// Optimized code sees monomorphic and should deopt.
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load(o2);
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// should deptimize since we wouldn't generate checks for monomorphic when
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// starting off with polymorphic
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assertUnoptimized(load);
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