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// Copyright 2016 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 --turbo
// TurboFan optimizes integer loops. These tests check that we compute
// the correct upper and lower bounds.
function positive_increment() {
for (var i = 5; i < 10; i++) {
if (i < 0) return false;
if (i > 20) return false;
if (i === 7) return true;
}
return false;
}
function positive_increment_strict() {
for (var i = 5; i < 10; i++) {
if (i < 0) return false;
if (i === 10) return false;
}
return true;
}
function positive_increment_non_strict() {
for (var i = 5; i <= 10; i++) {
if (i < 0) return false;
if (i === 10) return true;
}
return false;
}
function negative_increment() {
for (var i = 10; i > 5;) {
if (i < 0) return false;
if (i > 20) return false;
if (i === 7) return true;
i -= 1;
}
return false;
}
function positive_decrement() {
for (var i = 10; i > 5; i--) {
if (i < 0) return false;
if (i === 7) return true;
}
return false;
}
function positive_decrement_strict() {
for (var i = 10; i > 5; i--) {
if (i < 0) return false;
if (i === 5) return false;
}
return true;
}
function positive_decrement_non_strict() {
for (var i = 10; i >= 5; i--) {
if (i < 0) return false;
if (i === 5) return true;
}
return false;
}
function negative_decrement() {
for (var i = 5; i < 10;) {
if (i < 0) return false;
if (i === 7) return true;
i -= -1;
}
return false;
}
function variable_bound() {
for (var i = 5; i < 10; i++) {
for (var j = 5; j < i; j++) {
if (j < 0) return false;
if (j === 7) return true;
}
}
return false;
}
function test(f) {
f();
assertTrue(f());
%OptimizeFunctionOnNextCall(f);
assertTrue(f());
}
test(positive_increment);
test(positive_increment_strict);
test(positive_increment_non_strict);
test(negative_increment);
test(positive_decrement);
test(positive_decrement_strict);
test(positive_decrement_non_strict);
test(negative_decrement);
test(variable_bound);
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