blob: ef2e3fd476d24b7ea93f7091835575c54388b7fe [file] [log] [blame]
//@ defaultNoEagerRun
"use strict";
let validInputTestCases = [
// input as string, expected result as string.
["undefined", "NaN"],
["null", "0"],
["0", "0"],
["-0.", "-0."],
["4", "2"],
["42.5", "6.519202405202649"],
["Infinity", "Infinity"],
["-Infinity", "NaN"],
["NaN", "NaN"],
["\"WebKit\"", "NaN"],
["\"4\"", "2"],
["{ valueOf: () => { return 4; } }", "2"],
];
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.sqrt() without arguments.
function opaqueSqrtNoArgument() {
return Math.sqrt();
}
noInline(opaqueSqrtNoArgument);
noOSRExitFuzzing(opaqueSqrtNoArgument);
function testNoArgument() {
for (let i = 0; i < 1e4; ++i) {
let output = opaqueSqrtNoArgument();
if (output === output) {
throw "Failed opaqueSqrtNoArgument";
}
}
if (numberOfDFGCompiles(opaqueSqrtNoArgument) > 1)
throw "The call without arguments should never exit.";
}
testNoArgument();
// Test Math.sqrt() with a very polymorphic input. All test cases are seen at each iteration.
function opaqueAllTypesSqrt(argument) {
return Math.sqrt(argument);
}
noInline(opaqueAllTypesSqrt);
noOSRExitFuzzing(opaqueAllTypesSqrt);
function testAllTypesCall() {
for (let i = 0; i < 1e3; ++i) {
for (let testCaseInput of validInputTypedTestCases) {
let output = opaqueAllTypesSqrt(testCaseInput[0]);
if (!isIdentical(output, testCaseInput[1]))
throw "Failed testAllTypesCall for input " + testCaseInput[0] + " expected " + testCaseInput[1] + " got " + output;
}
}
if (numberOfDFGCompiles(opaqueAllTypesSqrt) > 2)
throw "We should have detected sqrt() was polymorphic and generated a generic version.";
}
testAllTypesCall();
// Test Math.sqrt() on a completely typed input. Every call see only one type.
function testSingleTypeCall() {
for (let testCaseInput of validInputTestCases) {
eval(`
function opaqueSqrt(argument) {
return Math.sqrt(argument);
}
noInline(opaqueSqrt);
noOSRExitFuzzing(opaqueSqrt);
for (let i = 0; i < 1e4; ++i) {
if (!isIdentical(opaqueSqrt(${testCaseInput[0]}), ${testCaseInput[1]})) {
throw "Failed testSingleTypeCall()";
}
}
if (numberOfDFGCompiles(opaqueSqrt) > 1)
throw "We should have compiled a single sqrt for the expected type.";
`);
}
}
testSingleTypeCall();
// Test Math.sqrt() on constants
function testConstant() {
for (let testCaseInput of validInputTestCases) {
eval(`
function opaqueSqrtOnConstant() {
return Math.sqrt(${testCaseInput[0]});
}
noInline(opaqueSqrtOnConstant);
noOSRExitFuzzing(opaqueSqrtOnConstant);
for (let i = 0; i < 1e4; ++i) {
if (!isIdentical(opaqueSqrtOnConstant(), ${testCaseInput[1]})) {
throw "Failed testConstant()";
}
}
if (numberOfDFGCompiles(opaqueSqrtOnConstant) > 1)
throw "We should have compiled a single sqrt for the expected type.";
`);
}
}
testConstant();
// Verify we call valueOf() exactly once per call.
function opaqueSqrtForSideEffects(argument) {
return Math.sqrt(argument);
}
noInline(opaqueSqrtForSideEffects);
noOSRExitFuzzing(opaqueSqrtForSideEffects);
function testSideEffect() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 16; }
};
for (let i = 0; i < 1e4; ++i) {
if (opaqueSqrtForSideEffects(testObject) !== 4)
throw "Incorrect result in testSideEffect()";
}
if (testObject.counter !== 1e4)
throw "Failed testSideEffect()";
if (numberOfDFGCompiles(opaqueSqrtForSideEffects) > 1)
throw "opaqueSqrtForSideEffects() is predictable, it should only be compiled once.";
}
testSideEffect();
// Verify sqrt() is not subject to CSE if the argument has side effects.
function opaqueSqrtForCSE(argument) {
return Math.sqrt(argument) + Math.sqrt(argument) + Math.sqrt(argument);
}
noInline(opaqueSqrtForCSE);
noOSRExitFuzzing(opaqueSqrtForCSE);
function testCSE() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 16; }
};
for (let i = 0; i < 1e4; ++i) {
if (opaqueSqrtForCSE(testObject) !== 12)
throw "Incorrect result in testCSE()";
}
if (testObject.counter !== 3e4)
throw "Failed testCSE()";
if (numberOfDFGCompiles(opaqueSqrtForCSE) > 1)
throw "opaqueSqrtForCSE() is predictable, it should only be compiled once.";
}
testCSE();
// Verify sqrt() is not subject to DCE if the argument has side effects.
function opaqueSqrtForDCE(argument) {
Math.sqrt(argument);
}
noInline(opaqueSqrtForDCE);
noOSRExitFuzzing(opaqueSqrtForDCE);
function testDCE() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 16; }
};
for (let i = 0; i < 1e4; ++i) {
opaqueSqrtForDCE(testObject);
}
if (testObject.counter !== 1e4)
throw "Failed testDCE()";
if (numberOfDFGCompiles(opaqueSqrtForDCE) > 1)
throw "opaqueSqrtForDCE() is predictable, it should only be compiled once.";
}
testDCE();
// Test exceptions in the argument.
function testException() {
let counter = 0;
function opaqueSqrtWithException(argument) {
let result = Math.sqrt(argument);
++counter;
return result;
}
noInline(opaqueSqrtWithException);
let testObject = { valueOf: () => { return 64; } };
// Warm up without exception.
for (let i = 0; i < 1e3; ++i) {
if (opaqueSqrtWithException(testObject) !== 8)
throw "Incorrect result in opaqueSqrtWithException()";
}
let testThrowObject = { valueOf: () => { throw testObject; return 64; } };
for (let i = 0; i < 1e2; ++i) {
try {
if (opaqueSqrtWithException(testThrowObject) !== 8)
throw "This code should not be reached!!";
} catch (e) {
if (e !== testObject) {
throw "Wrong object thrown from opaqueSqrtWithException."
}
}
}
if (counter !== 1e3) {
throw "Invalid count in testException()";
}
}
testException();