7730fd94a2
Unifies various operators for dynamic map checks with the naming scheme of DynamicCheckMaps (to be similar to CheckMaps. BUG=v8:10582 Change-Id: I8ac842f55fe31cdc7b84968d077017a86ddf4442 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2567952 Auto-Submit: Ross McIlroy <rmcilroy@chromium.org> Commit-Queue: Jakob Gruber <jgruber@chromium.org> Reviewed-by: Jakob Gruber <jgruber@chromium.org> Cr-Commit-Position: refs/heads/master@{#71559}
44 lines
975 B
JavaScript
44 lines
975 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 --noalways-opt
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function foo() {
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function g(o) {
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return o.f;
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}
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return g;
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}
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let g1 = foo();
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let g2 = foo();
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%PrepareFunctionForOptimization(g1);
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g1({ f : 1});
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g1({ f : 2});
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g2({ f : 2});
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g2({ f : 2});
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%OptimizeFunctionOnNextCall(g1);
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g1({ f : 1});
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%PrepareFunctionForOptimization(g2);
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%OptimizeFunctionOnNextCall(g2);
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g2({ f : 2});
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g1({});
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if (%DynamicCheckMapsEnabled()) {
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// One more call to ensure a deopt even if dynamic map checks is enabled.
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g1({});
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}
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assertUnoptimized(g1);
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// Deoptimization of g1 should also deoptimize g2 because they should share
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// the optimized code object. (Unfortunately, this test bakes in various
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// other assumptions about dealing with optimized code, and thus might break
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// in future.)
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assertUnoptimized(g2);
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g2({});
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