blob: 140d63f7423b55739c1559d583361c8c58cd16bf [file] [log] [blame]
//@ skip if not $jitTests
//@ requireOptions("--forceUnlinkedDFG=0")
//@ defaultNoEagerRun
"use strict";
let cosOfFour = Math.cos(4);
let validInputTestCases = [
// input as string, expected result as string.
["undefined", "NaN"],
["null", "1"],
["0", "1"],
["-0.", "1"],
["4", "" + cosOfFour],
["Math.PI", "-1"],
["Infinity", "NaN"],
["-Infinity", "NaN"],
["NaN", "NaN"],
["\"WebKit\"", "NaN"],
["\"4\"", "" + cosOfFour],
["{ valueOf: () => { return 4; } }", "" + cosOfFour],
];
let validInputTypedTestCases = validInputTestCases.map((element) => { return [eval("(" + element[0] + ")"), eval(element[1])] });
function isIdentical(result, expected)
{
if (expected === expected) {
if (result !== expected)
return false;
if (!expected && 1 / expected === -Infinity && 1 / result !== -Infinity)
return false;
return true;
}
return result !== result;
}
// Test Math.cos() without arguments.
function opaqueCosNoArgument() {
return Math.cos();
}
noInline(opaqueCosNoArgument);
noOSRExitFuzzing(opaqueCosNoArgument);
function testNoArgument() {
for (let i = 0; i < 1e4; ++i) {
let output = opaqueCosNoArgument();
if (output === output) {
throw "Failed opaqueCosNoArgument";
}
}
if (numberOfDFGCompiles(opaqueCosNoArgument) > 1)
throw "The call without arguments should never exit.";
}
testNoArgument();
// Test Math.cos() with a very polymorphic input. All test cases are seen at each iteration.
function opaqueAllTypesCos(argument) {
return Math.cos(argument);
}
noInline(opaqueAllTypesCos);
noOSRExitFuzzing(opaqueAllTypesCos);
function testAllTypesCall() {
for (let i = 0; i < 1e3; ++i) {
for (let testCaseInput of validInputTypedTestCases) {
let output = opaqueAllTypesCos(testCaseInput[0]);
if (!isIdentical(output, testCaseInput[1]))
throw "Failed testAllTypesCall for input " + testCaseInput[0] + " expected " + testCaseInput[1] + " got " + output;
}
}
if (numberOfDFGCompiles(opaqueAllTypesCos) > 2)
throw "We should have detected cos() was polymorphic and generated a generic version.";
}
testAllTypesCall();
// Test Math.cos() on a completely typed input. Every call see only one type.
function testSingleTypeCall() {
for (let testCaseInput of validInputTestCases) {
eval(`
function opaqueCos(argument) {
return Math.cos(argument);
}
noInline(opaqueCos);
noOSRExitFuzzing(opaqueCos);
for (let i = 0; i < 1e4; ++i) {
if (!isIdentical(opaqueCos(${testCaseInput[0]}), ${testCaseInput[1]})) {
throw "Failed testSingleTypeCall()";
}
}
if (numberOfDFGCompiles(opaqueCos) > 1)
throw "We should have compiled a single cos for the expected type.";
`);
}
}
testSingleTypeCall();
// Test Math.cos() on constants
function testConstant() {
for (let testCaseInput of validInputTestCases) {
eval(`
function opaqueCosOnConstant() {
return Math.cos(${testCaseInput[0]});
}
noInline(opaqueCosOnConstant);
noOSRExitFuzzing(opaqueCosOnConstant);
for (let i = 0; i < 1e4; ++i) {
if (!isIdentical(opaqueCosOnConstant(), ${testCaseInput[1]})) {
throw "Failed testConstant()";
}
}
if (numberOfDFGCompiles(opaqueCosOnConstant) > 1)
throw "We should have compiled a single cos for the expected type.";
`);
}
}
testConstant();
// Verify we call valueOf() exactly once per call.
function opaqueCosForSideEffects(argument) {
return Math.cos(argument);
}
noInline(opaqueCosForSideEffects);
noOSRExitFuzzing(opaqueCosForSideEffects);
function testSideEffect() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 16; }
};
let cos16 = Math.cos(16);
for (let i = 0; i < 1e4; ++i) {
if (opaqueCosForSideEffects(testObject) !== cos16)
throw "Incorrect result in testSideEffect()";
}
if (testObject.counter !== 1e4)
throw "Failed testSideEffect()";
if (numberOfDFGCompiles(opaqueCosForSideEffects) > 1)
throw "opaqueCosForSideEffects() is predictable, it should only be compiled once.";
}
testSideEffect();
// Verify cos() is not subject to CSE if the argument has side effects.
function opaqueCosForCSE(argument) {
return Math.cos(argument) + Math.cos(argument) + Math.cos(argument);
}
noInline(opaqueCosForCSE);
noOSRExitFuzzing(opaqueCosForCSE);
function testCSE() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 16; }
};
let cos16 = Math.cos(16);
let threeCos16 = cos16 + cos16 + cos16;
for (let i = 0; i < 1e4; ++i) {
if (opaqueCosForCSE(testObject) !== threeCos16)
throw "Incorrect result in testCSE()";
}
if (testObject.counter !== 3e4)
throw "Failed testCSE()";
if (numberOfDFGCompiles(opaqueCosForCSE) > 1)
throw "opaqueCosForCSE() is predictable, it should only be compiled once.";
}
testCSE();
// Verify cos() is not subject to DCE if the argument has side effects.
function opaqueCosForDCE(argument) {
Math.cos(argument);
}
noInline(opaqueCosForDCE);
noOSRExitFuzzing(opaqueCosForDCE);
function testDCE() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 16; }
};
for (let i = 0; i < 1e4; ++i) {
opaqueCosForDCE(testObject);
}
if (testObject.counter !== 1e4)
throw "Failed testDCE()";
if (numberOfDFGCompiles(opaqueCosForDCE) > 1)
throw "opaqueCosForDCE() is predictable, it should only be compiled once.";
}
testDCE();
// Test exceptions in the argument.
function testException() {
let counter = 0;
function opaqueCosWithException(argument) {
let result = Math.cos(argument);
++counter;
return result;
}
noInline(opaqueCosWithException);
let testObject = { valueOf: () => { return 64; } };
let cos64 = Math.cos(64);
// Warm up without exception.
for (let i = 0; i < 1e3; ++i) {
if (opaqueCosWithException(testObject) !== cos64)
throw "Incorrect result in opaqueCosWithException()";
}
let testThrowObject = { valueOf: () => { throw testObject; return 64; } };
for (let i = 0; i < 1e2; ++i) {
try {
if (opaqueCosWithException(testThrowObject) !== 8)
throw "This code should not be reached!!";
} catch (e) {
if (e !== testObject) {
throw "Wrong object thrown from opaqueCosWithException."
}
}
}
if (counter !== 1e3) {
throw "Invalid count in testException()";
}
}
testException();