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// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Test various optimizations and deoptimizations of optimizing compiler..
// VMOptions=--optimization-counter-threshold=10 --no-use-osr --no-background-compilation
import "package:expect/expect.dart";
addThem(a, b) {
return a + b;
}
isItInt(a) {
return a is int;
}
doNeg(a) {
return -a;
}
doNeg2(a) {
return -a;
}
doNot(a) {
return !a;
}
doBitNot(a) {
return ~a;
}
doStore1(a, v) {
a[1] = v;
}
doStore2(a, v) {
a[2] = v;
}
class StringPlus {
const StringPlus(String this._val);
operator +(right) => new StringPlus("${_val}${right}");
toString() => _val;
final String _val;
}
main() {
for (int i = 0; i < 20; i++) {
Expect.stringEquals("HI 5", addThem(const StringPlus("HI "), 5).toString());
Expect.equals(true, isItInt(5));
}
Expect.equals(8, addThem(3, 5));
for (int i = 0; i < 20; i++) {
Expect.stringEquals("HI 5", addThem(const StringPlus("HI "), 5).toString());
Expect.equals(8, addThem(3, 5));
}
for (int i = -10; i < 10; i++) {
var r = doNeg(i);
var p = doNeg(r);
Expect.equals(i, p);
}
var maxSmi = (1 << 30) - 1;
Expect.equals(maxSmi, doNeg(doNeg(maxSmi)));
// Deoptimize because of overflow.
var minInt = -(1 << 30);
Expect.equals(minInt, doNeg(doNeg(minInt)));
for (int i = 0; i < 20; i++) {
Expect.equals(false, doNot(true));
Expect.equals(true, doNot(doNot(true)));
}
for (int i = 0; i < 20; i++) {
Expect.equals(-57, doBitNot(56));
Expect.equals(55, doBitNot(-56));
}
for (int i = 0; i < 20; i++) {
Expect.equals(-2.2, doNeg2(2.2));
}
// Deoptimize.
Expect.equals(-5, doNeg2(5));
var fixed = new List(10);
var growable = [1, 2, 3, 4, 5];
for (int i = 0; i < 20; i++) {
doStore1(fixed, 7);
Expect.equals(7, fixed[1]);
doStore2(growable, 12);
Expect.equals(12, growable[2]);
}
// Deoptimize.
doStore1(growable, 8);
Expect.equals(8, growable[1]);
doStore2(fixed, 101);
Expect.equals(101, fixed[2]);
}