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// Copyright 2018 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --allow-natives-syntax --opt --no-always-opt
var buffer = new ArrayBuffer(64);
var dataview = new DataView(buffer, 8, 24);
function writeUint8(offset, value) {
dataview.setUint8(offset, value);
}
function writeInt8Handled(offset, value) {
try {
dataview.setInt8(offset, value);
} catch(e) {
return e;
}
}
function writeUint16(offset, value, little_endian) {
dataview.setUint16(offset, value, little_endian);
}
function writeInt16(offset, value, little_endian) {
dataview.setInt16(offset, value, little_endian);
}
function writeUint32(offset, value, little_endian) {
dataview.setUint32(offset, value, little_endian);
}
function writeInt32(offset, value, little_endian) {
dataview.setInt32(offset, value, little_endian);
}
function writeFloat32(offset, value, little_endian) {
dataview.setFloat32(offset, value, little_endian);
}
function writeFloat64(offset, value, little_endian) {
dataview.setFloat64(offset, value, little_endian);
}
function warmup(f) {
f(0, 0);
f(0, 1);
%OptimizeFunctionOnNextCall(f);
f(0, 2);
f(0, 3);
}
// TurboFan valid setUint8.
warmup(writeUint8);
assertOptimized(writeUint8);
writeUint8(0, 0xde);
writeUint8(1, 0xad);
writeUint8(2, 0xbe);
writeUint8(3, 0xef);
assertEquals(0xdeadbeef, dataview.getUint32(0));
// TurboFan valid setInt8.
warmup(writeInt8Handled);
assertOptimized(writeInt8Handled);
writeInt8Handled(0, -34);
writeInt8Handled(1, -83);
writeInt8Handled(2, -66);
writeInt8Handled(3, -17);
assertEquals(0xdeadbeef, dataview.getUint32(0));
// TurboFan valid setUint16.
warmup(writeUint16);
assertOptimized(writeUint16);
writeUint16(0, 0xdead);
writeUint16(2, 0xefbe, true);
assertEquals(0xdeadbeef, dataview.getUint32(0));
// TurboFan valid setInt16.
warmup(writeInt16);
assertOptimized(writeInt16);
writeInt16(0, -8531);
writeInt16(2, -4162, true);
assertEquals(0xdeadbeef, dataview.getUint32(0));
// TurboFan valid setUint32.
warmup(writeUint32);
assertOptimized(writeUint32);
writeUint32(0, 0xdeadbeef);
assertEquals(0xdeadbeef, dataview.getUint32(0));
writeUint32(0, 0xefbeadde, true);
assertEquals(0xdeadbeef, dataview.getUint32(0));
// TurboFan valid setInt32.
warmup(writeInt32);
assertOptimized(writeInt32);
writeInt32(0, -559038737);
assertEquals(0xdeadbeef, dataview.getUint32(0));
writeInt32(0, -272716322, true);
assertEquals(0xdeadbeef, dataview.getUint32(0));
// TurboFan valid setFloat32.
let b3 = Math.fround(Math.E); // Round Math.E to float32.
warmup(writeFloat32);
assertOptimized(writeFloat32);
writeFloat32(4, b3);
assertEquals(b3, dataview.getFloat32(4));
writeFloat32(4, b3, true);
assertEquals(b3, dataview.getFloat32(4, true));
// TurboFan valid setFloat64.
let b4 = Math.PI;
warmup(writeFloat64);
assertOptimized(writeFloat64);
writeFloat64(8, b4);
assertEquals(b4, dataview.getFloat64(8));
writeFloat64(8, b4, true);
assertEquals(b4, dataview.getFloat64(8, true));
// TurboFan out of bounds read, throw with exception handler.
assertOptimized(writeInt8Handled);
assertInstanceof(writeInt8Handled(24, 0), RangeError);
assertOptimized(writeInt8Handled);
// Without exception handler.
assertOptimized(writeUint8);
assertThrows(() => writeUint8(24, 0));
assertOptimized(writeUint8);
// None of the stores wrote out of bounds.
var bytes = new Uint8Array(buffer);
for (var i = 0; i < 8; i++) assertEquals(0, bytes[i]);
for (var i = 32; i < 64; i++) assertEquals(0, bytes[i]);
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