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}
148 lines
3.5 KiB
JavaScript
148 lines
3.5 KiB
JavaScript
// Copyright 2018 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 --turbofan --noalways-turbofan
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// Known symbols abstract equality.
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(function() {
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const a = Symbol("a");
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const b = Symbol("b");
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function foo() { return a == b; }
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%PrepareFunctionForOptimization(foo);
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assertFalse(foo());
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assertFalse(foo());
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(foo());
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})();
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// Known symbols abstract in-equality.
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(function() {
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const a = Symbol("a");
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const b = Symbol("b");
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function foo() { return a != b; }
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo());
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assertTrue(foo());
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo());
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})();
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// Known symbol on one side abstract equality.
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(function() {
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const a = Symbol("a");
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const b = Symbol("b");
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function foo(a) { return a == b; }
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// Warmup
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo(b));
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assertFalse(foo(a));
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assertTrue(foo(b));
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assertFalse(foo(a));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo(b));
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// Re-prepare the function immediately to make sure type feedback isn't
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// cleared by untimely gc, as re-optimization on new feedback is tested below
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%PrepareFunctionForOptimization(foo);
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assertFalse(foo(a));
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assertOptimized(foo);
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// Make optimized code bail out
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assertFalse(foo("a"));
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assertUnoptimized(foo);
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// Make sure TurboFan learns the new feedback
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(foo("a"));
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assertOptimized(foo);
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})();
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// Known symbol on one side abstract in-equality.
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(function() {
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const a = Symbol("a");
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const b = Symbol("b");
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function foo(a) { return a != b; }
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// Warmup
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%PrepareFunctionForOptimization(foo);
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assertFalse(foo(b));
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assertTrue(foo(a));
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assertFalse(foo(b));
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assertTrue(foo(a));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(foo(b));
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assertTrue(foo(a));
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// Make optimized code bail out
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assertTrue(foo("a"));
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assertUnoptimized(foo);
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// Make sure TurboFan learns the new feedback
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%PrepareFunctionForOptimization(foo);
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo("a"));
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assertOptimized(foo);
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})();
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// Feedback based symbol abstract equality.
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(function() {
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const a = Symbol("a");
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const b = Symbol("b");
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function foo(a, b) { return a == b; }
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// Warmup
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%PrepareFunctionForOptimization(foo);
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assertTrue(foo(b, b));
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assertFalse(foo(a, b));
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assertTrue(foo(a, a));
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assertFalse(foo(b, a));
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo(a, a));
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assertFalse(foo(b, a));
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// Make optimized code bail out
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assertFalse(foo("a", b));
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assertUnoptimized(foo);
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// Make sure TurboFan learns the new feedback
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%PrepareFunctionForOptimization(foo);
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(foo("a", b));
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assertOptimized(foo);
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})();
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// Feedback based symbol abstract in-equality.
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(function() {
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const a = Symbol("a");
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const b = Symbol("b");
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function foo(a, b) { return a != b; }
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%PrepareFunctionForOptimization(foo);
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assertFalse(foo(b, b));
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assertTrue(foo(a, b));
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assertFalse(foo(a, a));
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assertTrue(foo(b, a));
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%OptimizeFunctionOnNextCall(foo);
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assertFalse(foo(a, a));
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assertTrue(foo(b, a));
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// Make optimized code bail out
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assertTrue(foo("a", b));
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assertUnoptimized(foo);
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// Make sure TurboFan learns the new feedback
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%PrepareFunctionForOptimization(foo);
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%OptimizeFunctionOnNextCall(foo);
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assertTrue(foo("a", b));
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assertOptimized(foo);
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})();
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