e3e8ea5d65
To be consistent with the all the other tiers and avoid confusion, we rename --opt to ---turbofan, and --always-opt to --always-turbofan. Change-Id: Ie23dc8282b3fb4cf2fbf73b6c3d5264de5d09718 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/3610431 Reviewed-by: Leszek Swirski <leszeks@chromium.org> Commit-Queue: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Jakob Linke <jgruber@chromium.org> Cr-Commit-Position: refs/heads/main@{#80336}
83 lines
2.3 KiB
JavaScript
83 lines
2.3 KiB
JavaScript
// Copyright 2019 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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// Flags: --no-always-turbofan --turbofan
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// Test that code embedding accesses to a Smi field gets properly
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// deoptimized if s->t field representation changes are done in-place.
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(function() {
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function O(x) { this.x = x; }
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function foo(o) { return o.x; }
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%PrepareFunctionForOptimization(foo);
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// We need to keep an instance around to make the GC stress testing work.
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const o1 = new O(1);
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foo(o1);
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foo(new O(2));
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%OptimizeFunctionOnNextCall(foo);
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foo(new O(3));
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assertOptimized(foo);
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new O(null);
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assertUnoptimized(foo);
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})();
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// Test that code embedding assignments to a Smi field gets properly
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// deoptimized if s->t field representation changes are done in-place.
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(function() {
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function O(x) { this.x = x; }
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function foo(o) { o.x = 0; }
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%PrepareFunctionForOptimization(foo);
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// We need to keep an instance around to make the GC stress testing work.
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const o1 = new O(1);
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foo(o1);
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foo(new O(2));
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%OptimizeFunctionOnNextCall(foo);
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foo(new O(3));
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assertOptimized(foo);
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new O(null);
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assertUnoptimized(foo);
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})();
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// Test that code embedding accesses to a HeapObject field gets properly
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// deoptimized if h->t field representation changes are done in-place.
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(function() {
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function O(x) { this.x = x; }
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function foo(o) { return o.x; }
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%PrepareFunctionForOptimization(foo);
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// We need to keep an instance around to make the GC stress testing work.
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const onull = new O(null);
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foo(onull);
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foo(new O("Hello"));
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%OptimizeFunctionOnNextCall(foo);
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foo(new O({}));
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assertOptimized(foo);
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new O(1);
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assertUnoptimized(foo);
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})();
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// Test that code embedding assignments to a Smi field gets properly
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// deoptimized if s->t field representation changes are done in-place.
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(function() {
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function O(x) { this.x = x; }
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function foo(o) { o.x = true; }
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%PrepareFunctionForOptimization(foo);
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// We need to keep an instance around to make the GC stress testing work.
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const onull = new O(null);
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foo(onull);
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foo(new O("Hello"));
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%OptimizeFunctionOnNextCall(foo);
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foo(new O({}));
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assertOptimized(foo);
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new O(1);
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assertUnoptimized(foo);
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})();
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