[javascriptcore-test262-automation] Changes from https://github.com/webkit/webkit.git at sha ffc7368147 on Tue Aug 21 2018 18:14:08 GMT+0000 (Coordinated Universal Time)

This commit is contained in:
test262-automation 2018-08-21 18:16:37 +00:00
parent 9cb6333cb9
commit 04c056b950
7 changed files with 1147 additions and 0 deletions

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function shouldBe(actual, expected) {
if (actual !== expected)
throw new Error('bad value: ' + actual);
}
function testH(string) {
return string.match(/h/i);
}
noInline(testH);
function testHe(string) {
return string.match(/he/i);
}
noInline(testHe);
function testHel(string) {
return string.match(/hel/i);
}
noInline(testHel);
function testHell(string) {
return string.match(/hell/i);
}
noInline(testHell);
function testHello(string) {
return string.match(/hello/i);
}
noInline(testHello);
function testHelloW(string) {
return string.match(/hellow/i);
}
noInline(testHelloW);
function testHelloWo(string) {
return string.match(/hellowo/i);
}
noInline(testHelloWo);
function testHelloWor(string) {
return string.match(/hellowor/i);
}
noInline(testHelloWor);
function testHelloWorl(string) {
return string.match(/helloworl/i);
}
noInline(testHelloWorl);
function testHelloWorld(string) {
return string.match(/helloworld/i);
}
noInline(testHelloWorld);
for (var i = 0; i < 1e4; ++i) {
shouldBe(testH("HelloWorld")[0], `H`);
shouldBe(testHe("HelloWorld")[0], `He`);
shouldBe(testHel("HelloWorld")[0], `Hel`);
shouldBe(testHell("HelloWorld")[0], `Hell`);
shouldBe(testHello("HelloWorld")[0], `Hello`);
shouldBe(testHelloW("HelloWorld")[0], `HelloW`);
shouldBe(testHelloWo("HelloWorld")[0], `HelloWo`);
shouldBe(testHelloWor("HelloWorld")[0], `HelloWor`);
shouldBe(testHelloWorl("HelloWorld")[0], `HelloWorl`);
shouldBe(testHelloWorld("HelloWorld")[0], `HelloWorld`);
shouldBe(testH("HelloWorldこんにちは")[0], `H`);
shouldBe(testHe("HelloWorldこんにちは")[0], `He`);
shouldBe(testHel("HelloWorldこんにちは")[0], `Hel`);
shouldBe(testHell("HelloWorldこんにちは")[0], `Hell`);
shouldBe(testHello("HelloWorldこんにちは")[0], `Hello`);
shouldBe(testHelloW("HelloWorldこんにちは")[0], `HelloW`);
shouldBe(testHelloWo("HelloWorldこんにちは")[0], `HelloWo`);
shouldBe(testHelloWor("HelloWorldこんにちは")[0], `HelloWor`);
shouldBe(testHelloWorl("HelloWorldこんにちは")[0], `HelloWorl`);
shouldBe(testHelloWorld("HelloWorldこんにちは")[0], `HelloWorld`);
}

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function shouldBe(actual, expected) {
if (actual !== expected)
throw new Error('bad value: ' + actual);
}
function testH(string) {
return string.match(/H/);
}
noInline(testH);
function testHe(string) {
return string.match(/He/);
}
noInline(testHe);
function testHel(string) {
return string.match(/Hel/);
}
noInline(testHel);
function testHell(string) {
return string.match(/Hell/);
}
noInline(testHell);
function testHello(string) {
return string.match(/Hello/);
}
noInline(testHello);
function testHelloW(string) {
return string.match(/HelloW/);
}
noInline(testHelloW);
function testHelloWo(string) {
return string.match(/HelloWo/);
}
noInline(testHelloWo);
function testHelloWor(string) {
return string.match(/HelloWor/);
}
noInline(testHelloWor);
function testHelloWorl(string) {
return string.match(/HelloWorl/);
}
noInline(testHelloWorl);
function testHelloWorld(string) {
return string.match(/HelloWorld/);
}
noInline(testHelloWorld);
for (var i = 0; i < 1e4; ++i) {
shouldBe(testH("HelloWorld")[0], `H`);
shouldBe(testHe("HelloWorld")[0], `He`);
shouldBe(testHel("HelloWorld")[0], `Hel`);
shouldBe(testHell("HelloWorld")[0], `Hell`);
shouldBe(testHello("HelloWorld")[0], `Hello`);
shouldBe(testHelloW("HelloWorld")[0], `HelloW`);
shouldBe(testHelloWo("HelloWorld")[0], `HelloWo`);
shouldBe(testHelloWor("HelloWorld")[0], `HelloWor`);
shouldBe(testHelloWorl("HelloWorld")[0], `HelloWorl`);
shouldBe(testHelloWorld("HelloWorld")[0], `HelloWorld`);
shouldBe(testH("HelloWorldこんにちは")[0], `H`);
shouldBe(testHe("HelloWorldこんにちは")[0], `He`);
shouldBe(testHel("HelloWorldこんにちは")[0], `Hel`);
shouldBe(testHell("HelloWorldこんにちは")[0], `Hell`);
shouldBe(testHello("HelloWorldこんにちは")[0], `Hello`);
shouldBe(testHelloW("HelloWorldこんにちは")[0], `HelloW`);
shouldBe(testHelloWo("HelloWorldこんにちは")[0], `HelloWo`);
shouldBe(testHelloWor("HelloWorldこんにちは")[0], `HelloWor`);
shouldBe(testHelloWorl("HelloWorldこんにちは")[0], `HelloWorl`);
shouldBe(testHelloWorld("HelloWorldこんにちは")[0], `HelloWorld`);
}

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"use strict";
function assert(b, m = "") {
if (!b)
throw new Error("Bad: " + m);
}
let getOps = {
getUint8: 1,
getUint16: 2,
getUint32: 4,
getInt8: 1,
getInt16: 2,
getInt32: 4,
getFloat32: 4,
getFloat64: 8,
};
let setOps = {
setUint8: 1,
setUint16: 2,
setUint32: 4,
setInt8: 1,
setInt16: 2,
setInt32: 4,
setFloat32: 4,
setFloat64: 8,
};
let getFuncs = [];
for (let p of Object.keys(getOps)) {
let endOfCall = getOps[p] === 1 ? ");" : ", true);";
let str = `
(function ${p}(dv, index) {
return dv.${p}(index${endOfCall}
})
`;
let func = eval(str);
noInline(func);
getFuncs.push(func);
}
let setFuncs = [];
for (let p of Object.keys(setOps)) {
let endOfCall = setOps[p] === 1 ? ");" : ", true);";
let str = `
(function ${p}(dv, index, value) {
return dv.${p}(index, value${endOfCall}
})
`;
let func = eval(str);
noInline(func);
setFuncs.push(func);
}
function assertThrowsRangeError(f) {
let e = null;
try {
f();
} catch(err) {
e = err;
}
assert(e instanceof RangeError, e);
}
function test(warmup) {
const size = 16*1024;
let ab = new ArrayBuffer(size);
let dv = new DataView(ab);
for (let i = 0; i < warmup; ++i) {
for (let f of getFuncs) {
f(dv, 0);
}
for (let f of setFuncs) {
f(dv, 0, 10);
}
}
for (let f of getFuncs) {
assertThrowsRangeError(() => {
let index = size - getOps[f.name] + 1;
f(dv, index);
});
assertThrowsRangeError(() => {
let index = -1;
f(dv, index);
});
assertThrowsRangeError(() => {
let index = -2147483648;
f(dv, index);
});
}
for (let f of setFuncs) {
assertThrowsRangeError(() => {
let index = size - setOps[f.name] + 1;
f(dv, index, 10);
});
assertThrowsRangeError(() => {
let index = -1;
f(dv, index, 10);
});
assertThrowsRangeError(() => {
let index = -2147483648;
f(dv, index, 10);
});
}
}
test(2000);
test(10000);

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"use strict";
function assert(b) {
if (!b)
throw new Error("Bad!");
}
function test1() {
function bigEndian(o, i) {
return o.getInt32(i, false);
}
noInline(bigEndian);
function littleEndian(o, i) {
return o.getInt32(i, true);
}
noInline(littleEndian);
function biEndian(o, i, b) {
return o.getInt32(i, b);
}
noInline(biEndian);
let ab = new ArrayBuffer(4);
let ta = new Int32Array(ab);
ta[0] = 0x01020304;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === 0x04030201);
assert(littleEndian(dv, 0) === 0x01020304);
if (i % 2)
assert(biEndian(dv, 0, true) === 0x01020304);
else
assert(biEndian(dv, 0, false) === 0x04030201);
}
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === 0x04030201);
assert(littleEndian(dv, 0) === 0x01020304);
if (i % 2)
assert(biEndian(dv, 0, true) === 0x01020304);
else
assert(biEndian(dv, 0, false) === 0x04030201);
}
// Make sure we get the right sign.
ta[0] = -32361386; // 0xfe123456
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === 0x563412fe);
assert(littleEndian(dv, 0) === -32361386);
if (i % 2)
assert(biEndian(dv, 0, true) === -32361386);
else
assert(biEndian(dv, 0, false) === 0x563412fe);
}
// -2146290602 == (int)0x80123456
ta[0] = 0x56341280;
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === -2146290602);
assert(littleEndian(dv, 0) === 0x56341280);
if (i % 2)
assert(biEndian(dv, 0, true) === 0x56341280);
else
assert(biEndian(dv, 0, false) === -2146290602);
}
}
test1();
function test2() {
function bigEndian(o, i) {
return o.getInt16(i, false);
}
noInline(bigEndian);
function littleEndian(o, i) {
return o.getInt16(i, true);
}
noInline(littleEndian);
function biEndian(o, i, b) {
return o.getInt16(i, b);
}
noInline(biEndian);
let ab = new ArrayBuffer(2);
let ta = new Int16Array(ab);
ta[0] = 0x0102;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === 0x0201);
assert(littleEndian(dv, 0) === 0x0102);
if (i % 2)
assert(biEndian(dv, 0, true) === 0x0102);
else
assert(biEndian(dv, 0, false) === 0x0201);
}
// Check sign.
ta[0] = -512; // 0xfe00
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === 0x00fe);
assert(littleEndian(dv, 0) === -512);
if (i % 2)
assert(biEndian(dv, 0, true) === -512);
else
assert(biEndian(dv, 0, false) === 0x00fe);
}
// Check sign extension.
ta[0] = 0x00fe;
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === -512);
assert(littleEndian(dv, 0) === 0x00fe);
if (i % 2)
assert(biEndian(dv, 0, true) === 0x00fe);
else
assert(biEndian(dv, 0, false) === -512);
}
}
test2();
function test3() {
function bigEndian(o, i) {
return o.getFloat32(i, false);
}
noInline(bigEndian);
function littleEndian(o, i) {
return o.getFloat32(i, true);
}
noInline(littleEndian);
function biEndian(o, i, b) {
return o.getFloat32(i, b);
}
noInline(biEndian);
let ab = new ArrayBuffer(4);
let ta = new Float32Array(ab);
const normal = 12912.403; // 0x4649c19d
const normalAsDouble = 12912.403320312500;
const flipped = -5.1162437589918884e-21;
ta[0] = normal;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === flipped);
assert(littleEndian(dv, 0) === 12912.403320312500);
if (i % 2)
assert(biEndian(dv, 0, true) === normalAsDouble);
else
assert(biEndian(dv, 0, false) === flipped);
}
}
test3();
function test4() {
function bigEndian(o, i) {
return o.getUint32(i, false);
}
noInline(bigEndian);
function littleEndian(o, i) {
return o.getUint32(i, true);
}
noInline(littleEndian);
function biEndian(o, i, b) {
return o.getUint32(i, b);
}
noInline(biEndian);
let ab = new ArrayBuffer(4);
let ta = new Uint32Array(ab);
ta[0] = 0xa0b0d0f0;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(bigEndian(dv, 0) === 0xf0d0b0a0);
assert(littleEndian(dv, 0) === 0xa0b0d0f0);
if (i % 2)
assert(biEndian(dv, 0, true) === 0xa0b0d0f0);
else
assert(biEndian(dv, 0, false) === 0xf0d0b0a0);
}
}
test4();
function test5() {
function bigEndian(o, i) {
return o.getUint16(i, false);
}
noInline(bigEndian);
function littleEndian(o, i) {
return o.getUint16(i, true);
}
noInline(littleEndian);
function biEndian(o, i, b) {
return o.getUint16(i, b);
}
noInline(biEndian);
let ab = new ArrayBuffer(4);
let ta = new Uint32Array(ab);
ta[0] = 0xa0b0d0f0;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(littleEndian(dv, 0) == 0xd0f0);
assert(bigEndian(dv, 0) == 0xf0d0);
assert(littleEndian(dv, 1) == 0xb0d0);
assert(bigEndian(dv, 1) == 0xd0b0);
assert(littleEndian(dv, 2) == 0xa0b0);
assert(bigEndian(dv, 2) == 0xb0a0);
assert(biEndian(dv, 0, true) == 0xd0f0);
assert(biEndian(dv, 0, false) == 0xf0d0);
assert(biEndian(dv, 1, true) == 0xb0d0);
assert(biEndian(dv, 1, false) == 0xd0b0);
assert(biEndian(dv, 2, true) == 0xa0b0);
assert(biEndian(dv, 2, false) == 0xb0a0);
}
}
test5();
function test6() {
function bigEndian(o, i) {
return o.getInt16(i, false);
}
noInline(bigEndian);
function littleEndian(o, i) {
return o.getInt16(i, true);
}
noInline(littleEndian);
function biEndian(o, i, b) {
return o.getInt16(i, b);
}
noInline(biEndian);
let ab = new ArrayBuffer(4);
let ta = new Uint32Array(ab);
ta[0] = 0xa070fa01;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(littleEndian(dv, 0) == -1535);
assert(bigEndian(dv, 0) == 0x01fa);
assert(littleEndian(dv, 1) == 0x70fa);
assert(bigEndian(dv, 1) == -1424);
assert(littleEndian(dv, 2) == -24464);
assert(bigEndian(dv, 2) == 0x70a0);
assert(biEndian(dv, 0, true) == -1535);
assert(biEndian(dv, 0, false) == 0x01fa);
assert(biEndian(dv, 1, true) == 0x70fa);
assert(biEndian(dv, 1, false) == -1424);
assert(biEndian(dv, 2, true) == -24464);
assert(biEndian(dv, 2, false) == 0x70a0);
}
}
test6();
function test7() {
function load(o, i) {
return o.getInt8(i);
}
noInline(load);
let ab = new ArrayBuffer(4);
let ta = new Uint32Array(ab);
ta[0] = 0xa070fa01;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(load(dv, 0) === 0x01);
assert(load(dv, 1) === -6);
assert(load(dv, 2) === 0x70);
assert(load(dv, 3) === -96);
}
}
test7();
function test8() {
function load(o, i) {
return o.getUint8(i);
}
noInline(load);
let ab = new ArrayBuffer(4);
let ta = new Uint32Array(ab);
ta[0] = 0xa070fa01;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(load(dv, 0) === 0x01);
assert(load(dv, 1) === 0xfa);
assert(load(dv, 2) === 0x70);
assert(load(dv, 3) === 0xa0)
}
}
test8();

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"use strict";
function assert(b) {
if (!b)
throw new Error("Bad!");
}
function test() {
function load(o, i) {
return o.getUint8(i);
}
noInline(load);
let ab = new ArrayBuffer(4);
let ta = new Uint32Array(ab);
ta[0] = 0xa070fa01;
let dv = new DataView(ab);
for (let i = 0; i < 1000; ++i) {
assert(load(dv, 0) === 0x01);
}
transferArrayBuffer(ab);
let e = null;
try {
load(dv, 0);
} catch(err) {
e = err;
}
assert(e instanceof RangeError);
}
test();
function test2() {
function load(o, i) {
return o.getUint8(i);
}
noInline(load);
let ab = new ArrayBuffer(4);
let ta = new Uint32Array(ab);
ta[0] = 0xa070fa01;
let dv = new DataView(ab);
for (let i = 0; i < 10000; ++i) {
assert(load(dv, 0) === 0x01);
}
transferArrayBuffer(ab);
let e = null;
try {
load(dv, 0);
} catch(err) {
e = err;
}
assert(e instanceof RangeError);
}
test2();

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"use strict";
function assert(b) {
if (!b)
throw new Error;
}
function readHex(dv, bytes) {
function isLittleEndian() {
let b = new ArrayBuffer(4);
let dv = new DataView(b);
dv.setInt32(0, 0x00112233, true);
return dv.getUint8(0) === 0x33;
}
let str = "";
function readByte(i) {
let b = dv.getUint8(i).toString(16);
if (b.length === 1)
b = "0" + b;
else
assert(b.length === 2)
return b;
}
if (isLittleEndian()) {
for (let i = bytes; i--;)
str = str + readByte(i);
} else {
for (let i = 0; i < bytes; ++i)
str = str + readByte(i);
}
return "0x" + str;
}
{
let b = new ArrayBuffer(4);
let dv = new DataView(b);
dv.setInt32(0, 0x00112233, true);
assert(readHex(dv, 4) === "0x00112233");
}
function test() {
function storeLittleEndian(dv, index, value) {
dv.setInt16(index, value, true);
}
noInline(storeLittleEndian);
function storeBigEndian(dv, index, value) {
dv.setInt16(index, value, false);
}
noInline(storeBigEndian);
function store(dv, index, value, littleEndian) {
dv.setInt16(index, value, littleEndian);
}
noInline(store);
let buffer = new ArrayBuffer(2);
let arr = new Uint16Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
storeLittleEndian(dv, 0, 0xfaba);
assert(arr[0] === 0xfaba);
store(dv, 0, 0xabcd, true);
assert(arr[0] === 0xabcd);
store(dv, 0, 0xbadbeef, true);
assert(arr[0] === 0xbeef);
storeLittleEndian(dv, 0, 0xbb4db33f, true);
assert(arr[0] === 0xb33f);
storeBigEndian(dv, 0, 0xfada);
assert(arr[0] === 0xdafa);
storeBigEndian(dv, 0, 0x12ab);
assert(arr[0] === 0xab12);
store(dv, 0, 0x1234, false);
assert(arr[0] === 0x3412);
store(dv, 0, 0x0102, false);
assert(arr[0] === 0x0201);
store(dv, 0, -1, false);
assert(arr[0] === 0xffff);
store(dv, 0, -2, false);
assert(arr[0] === 0xfeff);
storeBigEndian(dv, 0, -1);
assert(arr[0] === 0xffff);
storeBigEndian(dv, 0, -2);
assert(arr[0] === 0xfeff);
storeBigEndian(dv, 0, -2147483648);
assert(arr[0] === 0x0000);
storeLittleEndian(dv, 0, -2147483648);
assert(arr[0] === 0x0000);
storeLittleEndian(dv, 0, -2147478988);
assert(arr[0] === 0x1234);
storeBigEndian(dv, 0, -2147478988);
assert(arr[0] === 0x3412);
}
}
test();
function test2() {
function storeLittleEndian(dv, index, value) {
dv.setUint16(index, value, true);
}
noInline(storeLittleEndian);
function storeBigEndian(dv, index, value) {
dv.setUint16(index, value, false);
}
noInline(storeBigEndian);
function store(dv, index, value, littleEndian) {
dv.setUint16(index, value, littleEndian);
}
noInline(store);
let buffer = new ArrayBuffer(2);
let arr = new Uint16Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
storeLittleEndian(dv, 0, 0xfaba);
assert(arr[0] === 0xfaba);
store(dv, 0, 0xabcd, true);
assert(arr[0] === 0xabcd);
store(dv, 0, 0xbadbeef, true);
assert(arr[0] === 0xbeef);
storeLittleEndian(dv, 0, 0xbb4db33f, true);
assert(arr[0] === 0xb33f);
storeBigEndian(dv, 0, 0xfada);
assert(arr[0] === 0xdafa);
storeBigEndian(dv, 0, 0x12ab);
assert(arr[0] === 0xab12);
store(dv, 0, 0x1234, false);
assert(arr[0] === 0x3412);
store(dv, 0, 0x0102, false);
assert(arr[0] === 0x0201);
store(dv, 0, -1, false);
assert(arr[0] === 0xffff);
store(dv, 0, -2, false);
assert(arr[0] === 0xfeff);
storeBigEndian(dv, 0, -1);
assert(arr[0] === 0xffff);
storeBigEndian(dv, 0, -2);
assert(arr[0] === 0xfeff);
storeBigEndian(dv, 0, -2147483648);
assert(arr[0] === 0x0000);
storeLittleEndian(dv, 0, -2147483648);
assert(arr[0] === 0x0000);
storeLittleEndian(dv, 0, -2147478988);
assert(arr[0] === 0x1234);
storeBigEndian(dv, 0, -2147478988);
assert(arr[0] === 0x3412);
}
}
test2();
function test3() {
function storeLittleEndian(dv, index, value) {
dv.setUint32(index, value, true);
}
noInline(storeLittleEndian);
function storeBigEndian(dv, index, value) {
dv.setUint32(index, value, false);
}
noInline(storeBigEndian);
function store(dv, index, value, littleEndian) {
dv.setUint32(index, value, littleEndian);
}
noInline(store);
let buffer = new ArrayBuffer(4);
let arr = new Uint32Array(buffer);
let arr2 = new Int32Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
storeLittleEndian(dv, 0, 0xffffffff);
assert(arr[0] === 0xffffffff);
assert(arr2[0] === -1);
storeLittleEndian(dv, 0, 0xffaabbcc);
assert(arr[0] === 0xffaabbcc);
storeBigEndian(dv, 0, 0x12345678);
assert(arr[0] === 0x78563412);
storeBigEndian(dv, 0, 0xffaabbcc);
assert(arr[0] === 0xccbbaaff);
store(dv, 0, 0xfaeadaca, false);
assert(arr[0] === 0xcadaeafa);
store(dv, 0, 0xcadaeafa, false);
assert(arr2[0] === -85271862);
store(dv, 0, 0x12345678, false);
assert(arr[0] === 0x78563412);
storeBigEndian(dv, 0, 0xbeeffeeb);
assert(arr2[0] === -335614018);
}
}
test3();
function test4() {
function storeLittleEndian(dv, index, value) {
dv.setInt32(index, value, true);
}
noInline(storeLittleEndian);
function storeBigEndian(dv, index, value) {
dv.setInt32(index, value, false);
}
noInline(storeBigEndian);
function store(dv, index, value, littleEndian) {
dv.setInt32(index, value, littleEndian);
}
noInline(store);
let buffer = new ArrayBuffer(4);
let arr = new Uint32Array(buffer);
let arr2 = new Int32Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
storeLittleEndian(dv, 0, 0xffffffff);
assert(arr[0] === 0xffffffff);
assert(arr2[0] === -1);
storeLittleEndian(dv, 0, 0xffaabbcc);
assert(arr[0] === 0xffaabbcc);
storeBigEndian(dv, 0, 0x12345678);
assert(arr[0] === 0x78563412);
storeBigEndian(dv, 0, 0xffaabbcc);
assert(arr[0] === 0xccbbaaff);
store(dv, 0, 0xfaeadaca, false);
assert(arr[0] === 0xcadaeafa);
store(dv, 0, 0xcadaeafa, false);
assert(arr2[0] === -85271862);
store(dv, 0, 0x12345678, false);
assert(arr[0] === 0x78563412);
storeBigEndian(dv, 0, 0xbeeffeeb);
assert(arr2[0] === -335614018);
}
}
test4();
function test5() {
function storeLittleEndian(dv, index, value) {
dv.setFloat32(index, value, true);
}
noInline(storeLittleEndian);
function storeBigEndian(dv, index, value) {
dv.setFloat32(index, value, false);
}
noInline(storeBigEndian);
function store(dv, index, value, littleEndian) {
dv.setFloat32(index, value, littleEndian);
}
noInline(store);
let buffer = new ArrayBuffer(4);
let arr = new Float32Array(buffer);
let bits = new Uint32Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
storeLittleEndian(dv, 0, 1.5);
assert(arr[0] === 1.5);
storeLittleEndian(dv, 0, 12912.124123215122);
assert(arr[0] === 12912.1240234375);
assert(bits[0] === 0x4649c07f);
storeLittleEndian(dv, 0, NaN);
assert(isNaN(arr[0]));
assert(bits[0] === 0x7FC00000);
storeLittleEndian(dv, 0, 2.3879393e-38);
assert(arr[0] === 2.387939260590663e-38);
assert(bits[0] === 0x01020304);
storeBigEndian(dv, 0, 2.3879393e-38);
assert(arr[0] === 1.539989614439558e-36);
assert(bits[0] === 0x04030201);
}
}
test5();
function test6() {
function storeLittleEndian(dv, index, value) {
dv.setFloat64(index, value, true);
}
noInline(storeLittleEndian);
function storeBigEndian(dv, index, value) {
dv.setFloat64(index, value, false);
}
noInline(storeBigEndian);
function store(dv, index, value, littleEndian) {
dv.setFloat64(index, value, littleEndian);
}
noInline(store);
let buffer = new ArrayBuffer(8);
let arr = new Float64Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
storeLittleEndian(dv, 0, NaN);
assert(isNaN(arr[0]));
storeLittleEndian(dv, 0, -2.5075187084135162e+284);
assert(arr[0] === -2.5075187084135162e+284);
assert(readHex(dv, 8) === "0xfafafafafafafafa");
store(dv, 0, 124.553, true);
assert(readHex(dv, 8) === "0x405f23645a1cac08");
store(dv, 0, Infinity, true);
assert(readHex(dv, 8) === "0x7ff0000000000000");
store(dv, 0, Infinity, false);
assert(readHex(dv, 8) === "0x000000000000f07f");
store(dv, 0, -Infinity, true);
assert(readHex(dv, 8) === "0xfff0000000000000");
storeBigEndian(dv, 0, -2.5075187084135162e+284);
assert(arr[0] === -2.5075187084135162e+284);
assert(readHex(dv, 8) === "0xfafafafafafafafa");
storeBigEndian(dv, 0, 124.553);
assert(readHex(dv, 8) === "0x08ac1c5a64235f40");
}
}
test6();
function test7() {
function store(dv, index, value) {
dv.setInt8(index, value);
}
noInline(store);
let buffer = new ArrayBuffer(1);
let arr = new Uint8Array(buffer);
let arr2 = new Int8Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
store(dv, 0, 0xff);
assert(arr[0] === 0xff);
assert(arr2[0] === -1);
store(dv, 0, 0xff00);
assert(arr[0] === 0);
assert(arr2[0] === 0);
store(dv, 0, -1);
assert(arr[0] === 0xff);
assert(arr2[0] === -1);
store(dv, 0, 0x0badbeef);
assert(arr[0] === 0xef);
assert(arr2[0] === -17);
}
}
test7();
function test8() {
function store(dv, index, value) {
dv.setInt8(index, value);
}
noInline(store);
let buffer = new ArrayBuffer(1);
let arr = new Uint8Array(buffer);
let arr2 = new Int8Array(buffer);
let dv = new DataView(buffer);
for (let i = 0; i < 10000; ++i) {
store(dv, 0, 0xff);
assert(arr[0] === 0xff);
assert(arr2[0] === -1);
store(dv, 0, 0xff00);
assert(arr[0] === 0);
assert(arr2[0] === 0);
store(dv, 0, -1);
assert(arr[0] === 0xff);
assert(arr2[0] === -1);
store(dv, 0, 0x0badbeef);
assert(arr[0] === 0xef);
assert(arr2[0] === -17);
}
}
test8();

View File

@ -0,0 +1,75 @@
"use strict";
function assert(b, m = "") {
if (!b)
throw new Error("Bad: " + m);
}
let getOps = {
getUint8: 1,
getUint16: 2,
getUint32: 4,
getInt8: 1,
getInt16: 2,
getInt32: 4,
getFloat32: 4,
getFloat64: 8,
};
let setOps = {
setUint8: 1,
setUint16: 2,
setUint32: 4,
setInt8: 1,
setInt16: 2,
setInt32: 4,
setFloat32: 4,
setFloat64: 8,
};
let getFuncs = [];
for (let p of Object.keys(getOps)) {
let endOfCall = getOps[p] === 1 ? ");" : ", true);";
let str = `
(function ${p}(dv, index) {
return dv.${p}(index${endOfCall}
})
`;
let func = eval(str);
noInline(func);
getFuncs.push(func);
}
let setFuncs = [];
for (let p of Object.keys(setOps)) {
let endOfCall = setOps[p] === 1 ? ");" : ", true);";
let str = `
(function ${p}(dv, index, value) {
dv.${p}(index, value${endOfCall}
})
`;
let func = eval(str);
noInline(func);
setFuncs.push(func);
}
function test() {
const size = 16*1024;
let ab = new ArrayBuffer(size);
let dv = new DataView(ab);
for (let i = 0; i < 100000; ++i) {
let index = (Math.random() * size) >>> 0;
index = Math.max(index - 8, 0);
for (let f of getFuncs) {
f(dv, index);
}
for (let f of setFuncs) {
f(dv, index, 10);
}
}
}
test();