blob: 40df8489c79e89bc6b5cd1a2e14cc3935f0eae01 [file] [log] [blame]
//@ skip if not $jitTests
//@ requireOptions("--forceUnlinkedDFG=0")
//@ defaultNoEagerRun
"use strict";
let expm1OfHalf = Math.expm1(0.5);
let validInputTestCases = [
// input as string, expected result as string.
["undefined", "NaN"],
["null", "0"],
["1", "" + Math.expm1(1)],
["0", "0"],
["-0.", "-0"],
["0.5", "" + expm1OfHalf],
["Math.PI", "" + Math.expm1(Math.PI)],
["Infinity", "Infinity"],
["-Infinity", "-1"],
["NaN", "NaN"],
["\"WebKit\"", "NaN"],
["\"0.5\"", "" + expm1OfHalf],
["{ valueOf: () => { return 0.5; } }", "" + expm1OfHalf],
];
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)
return (1 / expected) === (1 / result);
return true;
}
return result !== result;
}
// Test Math.expm1() without arguments.
function opaqueExpm1NoArgument() {
return Math.expm1();
}
noInline(opaqueExpm1NoArgument);
noOSRExitFuzzing(opaqueExpm1NoArgument);
function testNoArgument() {
for (let i = 0; i < 1e4; ++i) {
let output = opaqueExpm1NoArgument();
if (output === output) {
throw "Failed opaqueExpm1NoArgument";
}
}
if (numberOfDFGCompiles(opaqueExpm1NoArgument) > 1)
throw "The call without arguments should never exit.";
}
testNoArgument();
// Test Math.expm1() with a very polymorphic input. All test cases are seen at each iteration.
function opaqueAllTypesExpm1(argument) {
return Math.expm1(argument);
}
noInline(opaqueAllTypesExpm1);
noOSRExitFuzzing(opaqueAllTypesExpm1);
function testAllTypesCall() {
for (let i = 0; i < 1e3; ++i) {
for (let testCaseInput of validInputTypedTestCases) {
let output = opaqueAllTypesExpm1(testCaseInput[0]);
if (!isIdentical(output, testCaseInput[1]))
throw "Failed testAllTypesCall for input " + testCaseInput[0] + " expected " + testCaseInput[1] + " got " + output;
}
}
if (numberOfDFGCompiles(opaqueAllTypesExpm1) > 2)
throw "We should have detected expm1() was polymorphic and generated a generic version.";
}
testAllTypesCall();
// Test Math.expm1() on a completely typed input. Every call see only one type.
function testSingleTypeCall() {
for (let testCaseInput of validInputTestCases) {
eval(`
function opaqueExpm1(argument) {
return Math.expm1(argument);
}
noInline(opaqueExpm1);
noOSRExitFuzzing(opaqueExpm1);
for (let i = 0; i < 1e4; ++i) {
if (!isIdentical(opaqueExpm1(${testCaseInput[0]}), ${testCaseInput[1]})) {
throw "Failed testSingleTypeCall()";
}
}
if (numberOfDFGCompiles(opaqueExpm1) > 1)
throw "We should have compiled a single expm1 for the expected type.";
`);
}
}
testSingleTypeCall();
// Test Math.expm1() on constants
function testConstant() {
for (let testCaseInput of validInputTestCases) {
eval(`
function opaqueExpm1OnConstant() {
return Math.expm1(${testCaseInput[0]});
}
noInline(opaqueExpm1OnConstant);
noOSRExitFuzzing(opaqueExpm1OnConstant);
for (let i = 0; i < 1e4; ++i) {
if (!isIdentical(opaqueExpm1OnConstant(), ${testCaseInput[1]})) {
throw "Failed testConstant()";
}
}
if (numberOfDFGCompiles(opaqueExpm1OnConstant) > 1)
throw "We should have compiled a single expm1 for the expected type.";
`);
}
}
testConstant();
// Verify we call valueOf() exactly once per call.
function opaqueExpm1ForSideEffects(argument) {
return Math.expm1(argument);
}
noInline(opaqueExpm1ForSideEffects);
noOSRExitFuzzing(opaqueExpm1ForSideEffects);
function testSideEffect() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 0.2; }
};
let expm1Result = Math.expm1(0.2);
for (let i = 0; i < 1e4; ++i) {
if (opaqueExpm1ForSideEffects(testObject) !== expm1Result)
throw "Incorrect result in testSideEffect()";
}
if (testObject.counter !== 1e4)
throw "Failed testSideEffect()";
if (numberOfDFGCompiles(opaqueExpm1ForSideEffects) > 1)
throw "opaqueExpm1ForSideEffects() is predictable, it should only be compiled once.";
}
testSideEffect();
// Verify expm1() is not subject to CSE if the argument has side effects.
function opaqueExpm1ForCSE(argument) {
return Math.expm1(argument) + Math.expm1(argument) + Math.expm1(argument);
}
noInline(opaqueExpm1ForCSE);
noOSRExitFuzzing(opaqueExpm1ForCSE);
function testCSE() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 0.2; }
};
let expm1Result = Math.expm1(0.2);
let threeexpm1Result = expm1Result + expm1Result + expm1Result;
for (let i = 0; i < 1e4; ++i) {
if (opaqueExpm1ForCSE(testObject) !== threeexpm1Result)
throw "Incorrect result in testCSE()";
}
if (testObject.counter !== 3e4)
throw "Failed testCSE()";
if (numberOfDFGCompiles(opaqueExpm1ForCSE) > 1)
throw "opaqueExpm1ForCSE() is predictable, it should only be compiled once.";
}
testCSE();
// Verify expm1() is not subject to DCE if the argument has side effects.
function opaqueExpm1ForDCE(argument) {
Math.expm1(argument);
}
noInline(opaqueExpm1ForDCE);
noOSRExitFuzzing(opaqueExpm1ForDCE);
function testDCE() {
let testObject = {
counter: 0,
valueOf: function() { ++this.counter; return 0.2; }
};
for (let i = 0; i < 1e4; ++i) {
opaqueExpm1ForDCE(testObject);
}
if (testObject.counter !== 1e4)
throw "Failed testDCE()";
if (numberOfDFGCompiles(opaqueExpm1ForDCE) > 1)
throw "opaqueExpm1ForDCE() is predictable, it should only be compiled once.";
}
testDCE();
// Test exceptions in the argument.
function testException() {
let counter = 0;
function opaqueExpm1WithException(argument) {
let result = Math.expm1(argument);
++counter;
return result;
}
noInline(opaqueExpm1WithException);
let testObject = { valueOf: () => { return 0.1; } };
let expm1Result = Math.expm1(0.1);
// Warm up without exception.
for (let i = 0; i < 1e3; ++i) {
if (opaqueExpm1WithException(testObject) !== expm1Result)
throw "Incorrect result in opaqueExpm1WithException()";
}
let testThrowObject = { valueOf: () => { throw testObject; return 0.1; } };
for (let i = 0; i < 1e2; ++i) {
try {
if (opaqueExpm1WithException(testThrowObject) !== 8)
throw "This code should not be reached!!";
} catch (e) {
if (e !== testObject) {
throw "Wrong object thrown from opaqueExpm1WithException."
}
}
}
if (counter !== 1e3) {
throw "Invalid count in testException()";
}
}
testException();