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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --opt --noalways-opt
// Known receivers abstract equality.
(function() {
const a = {};
const b = {};
function foo() { return a == b; }
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
// Known receiver/null abstract equality.
(function() {
const a = {};
const b = null;
function foo() { return a == b; }
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
// Known null/receiver abstract equality.
(function() {
const a = null;
const b = {};
function foo() { return a == b; }
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
// Known receiver/undefined abstract equality.
(function() {
const a = {};
const b = undefined;
function foo() { return a == b; }
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
// Known undefined/receiver abstract equality.
(function() {
const a = undefined;
const b = {};
function foo() { return a == b; }
assertFalse(foo());
assertFalse(foo());
%OptimizeFunctionOnNextCall(foo);
assertFalse(foo());
})();
// Known receiver on one side strict equality.
(function() {
const a = {};
const b = {};
function foo(a) { return a == b; }
assertTrue(foo(b));
assertFalse(foo(a));
assertTrue(foo(b));
assertFalse(foo(a));
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo(b));
assertFalse(foo(a));
// TurboFan bakes in feedback for the (unknown) left hand side.
assertFalse(foo(null));
assertUnoptimized(foo);
})();
// Known receiver on one side strict equality with null.
(function() {
const a = null;
const b = {};
function foo(a) { return a == b; }
assertTrue(foo(b));
assertFalse(foo(a));
assertTrue(foo(b));
assertFalse(foo(a));
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo(b));
assertFalse(foo(a));
// TurboFan bakes in feedback for the (unknown) left hand side.
assertFalse(foo(1));
assertUnoptimized(foo);
})();
// Known receiver on one side strict equality with undefined.
(function() {
const a = undefined;
const b = {};
function foo(a) { return a == b; }
assertTrue(foo(b));
assertFalse(foo(a));
assertTrue(foo(b));
assertFalse(foo(a));
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo(b));
assertFalse(foo(a));
// TurboFan bakes in feedback for the (unknown) left hand side.
assertFalse(foo(1));
assertUnoptimized(foo);
})();
// Known null on one side strict equality with receiver.
(function() {
const a = {};
const b = null;
function foo(a) { return a == b; }
assertTrue(foo(b));
assertFalse(foo(a));
assertTrue(foo(b));
assertFalse(foo(a));
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo(b));
assertFalse(foo(a));
assertTrue(foo(null));
assertTrue(foo(undefined));
assertOptimized(foo);
// TurboFan doesn't need to bake in feedback, since it sees the null.
assertFalse(foo(1));
assertOptimized(foo);
})();
// Known undefined on one side strict equality with receiver.
(function() {
const a = {};
const b = undefined;
function foo(a) { return a == b; }
assertTrue(foo(b));
assertFalse(foo(a));
assertTrue(foo(b));
assertFalse(foo(a));
%OptimizeFunctionOnNextCall(foo);
assertTrue(foo(b));
assertFalse(foo(a));
assertTrue(foo(null));
assertTrue(foo(undefined));
assertOptimized(foo);
// TurboFan needs to bake in feedback, since undefined cannot
// be context specialized.
assertFalse(foo(1));
assertUnoptimized(foo);
})();
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