test262/harness/simdUtilities.js

427 lines
11 KiB
JavaScript

// Copyright (C) 2016 ecmascript_simd authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
function minNum(x, y) {
return x != x ? y :
y != y ? x :
Math.min(x, y);
}
function maxNum(x, y) {
return x != x ? y :
y != y ? x :
Math.max(x, y);
}
function sameValue(x, y) {
if (x == y)
return x != 0 || y != 0 || (1/x == 1/y);
return x != x && y != y;
}
function binaryMul(a, b) { return a * b; }
var binaryImul;
if (typeof Math.imul !== "undefined") {
binaryImul = Math.imul;
} else {
binaryImul = function(a, b) {
var ah = (a >>> 16) & 0xffff;
var al = a & 0xffff;
var bh = (b >>> 16) & 0xffff;
var bl = b & 0xffff;
// the shift by 0 fixes the sign on the high part
// the final |0 converts the unsigned value into a signed value
return ((al * bl) + (((ah * bl + al * bh) << 16) >>> 0)|0);
};
}
var _f32x4 = new Float32Array(4);
var _f64x2 = new Float64Array(_f32x4.buffer);
var _i32x4 = new Int32Array(_f32x4.buffer);
var _i16x8 = new Int16Array(_f32x4.buffer);
var _i8x16 = new Int8Array(_f32x4.buffer);
var _ui32x4 = new Uint32Array(_f32x4.buffer);
var _ui16x8 = new Uint16Array(_f32x4.buffer);
var _ui8x16 = new Uint8Array(_f32x4.buffer);
var float32x4 = {
name: "Float32x4",
fn: SIMD.Float32x4,
floatLane: true,
signed: true,
numerical: true,
lanes: 4,
laneSize: 4,
interestingValues: [0, -0, 1, -1, 0.9, -0.9, 1.414, 0x7F, -0x80, -0x8000,
-0x80000000, 0x7FFF, 0x7FFFFFFF, Infinity, -Infinity, NaN],
view: Float32Array,
buffer: _f32x4,
mulFn: binaryMul,
}
var int32x4 = {
name: "Int32x4",
fn: SIMD.Int32x4,
intLane: true,
signed: true,
numerical: true,
logical: true,
lanes: 4,
laneSize: 4,
minVal: -0x80000000,
maxVal: 0x7FFFFFFF,
interestingValues: [0, 1, -1, 0x40000000, 0x7FFFFFFF, -0x80000000],
view: Int32Array,
buffer: _i32x4,
mulFn: binaryImul,
}
var int16x8 = {
name: "Int16x8",
fn: SIMD.Int16x8,
intLane: true,
signed: true,
numerical: true,
logical: true,
lanes: 8,
laneSize: 2,
laneMask: 0xFFFF,
minVal: -0x8000,
maxVal: 0x7FFF,
interestingValues: [0, 1, -1, 0x4000, 0x7FFF, -0x8000],
view: Int16Array,
buffer: _i16x8,
mulFn: binaryMul,
}
var int8x16 = {
name: "Int8x16",
fn: SIMD.Int8x16,
intLane: true,
signed: true,
numerical: true,
logical: true,
lanes: 16,
laneSize: 1,
laneMask: 0xFF,
minVal: -0x80,
maxVal: 0x7F,
interestingValues: [0, 1, -1, 0x40, 0x7F, -0x80],
view: Int8Array,
buffer: _i8x16,
mulFn: binaryMul,
}
var uint32x4 = {
name: "Uint32x4",
fn: SIMD.Uint32x4,
intLane: true,
unsigned: true,
numerical: true,
logical: true,
lanes: 4,
laneSize: 4,
minVal: 0,
maxVal: 0xFFFFFFFF,
interestingValues: [0, 1, 0x40000000, 0x7FFFFFFF, 0xFFFFFFFF],
view: Uint32Array,
buffer: _ui32x4,
mulFn: binaryImul,
}
var uint16x8 = {
name: "Uint16x8",
fn: SIMD.Uint16x8,
intLane: true,
unsigned: true,
numerical: true,
logical: true,
lanes: 8,
laneSize: 2,
laneMask: 0xFFFF,
minVal: 0,
maxVal: 0xFFFF,
interestingValues: [0, 1, 0x4000, 0x7FFF, 0xFFFF],
view: Uint16Array,
buffer: _ui16x8,
mulFn: binaryMul,
}
var uint8x16 = {
name: "Uint8x16",
fn: SIMD.Uint8x16,
intLane: true,
unsigned: true,
numerical: true,
logical: true,
lanes: 16,
laneSize: 1,
laneMask: 0xFF,
minVal: 0,
maxVal: 0xFF,
interestingValues: [0, 1, 0x40, 0x7F, 0xFF],
view: Int8Array,
buffer: _ui8x16,
mulFn: binaryMul,
}
var bool32x4 = {
name: "Bool32x4",
fn: SIMD.Bool32x4,
boolLane: true,
logical: true,
lanes: 4,
laneSize: 4,
interestingValues: [true, false],
}
var bool16x8 = {
name: "Bool16x8",
fn: SIMD.Bool16x8,
boolLane: true,
logical: true,
lanes: 8,
laneSize: 2,
interestingValues: [true, false],
}
var bool8x16 = {
name: "Bool8x16",
fn: SIMD.Bool8x16,
boolLane: true,
logical: true,
lanes: 16,
laneSize: 1,
interestingValues: [true, false],
}
// Filter functions.
function isFloatType(type) { return type.floatLane; }
function isIntType(type) { return type.intLane; }
function isBoolType(type) { return type.boolLane; }
function isNumerical(type) { return type.numerical; }
function isLogical(type) { return type.logical; }
function isSigned(type) { return type.signed; }
function isSignedIntType(type) { return type.intLane && type.signed; }
function isUnsignedIntType(type) { return type.intLane && type.unsigned; }
function isSmallIntType(type) { return type.intLane && type.lanes >= 8; }
function isSmallUnsignedIntType(type) {
return type.intLane && type.unsigned && type.lanes >= 8;
}
function hasLoadStore123(type) { return !type.boolLane && type.lanes == 4; }
// Each SIMD type has a corresponding Boolean SIMD type, which is returned by
// relational ops.
float32x4.boolType = int32x4.boolType = uint32x4.boolType = bool32x4;
int16x8.boolType = uint16x8.boolType = bool16x8;
int8x16.boolType = uint8x16.boolType = bool8x16;
// SIMD fromTIMD types.
float32x4.from = [int32x4, uint32x4];
int32x4.from = [float32x4];
int16x8.from = [];
int8x16.from = [];
uint32x4.from = [float32x4];
uint16x8.from = [int16x8];
uint8x16.from = [int8x16];
// SIMD fromBits types.
float32x4.fromBits = [int32x4, int16x8, int8x16, uint32x4, uint16x8, uint8x16];
int32x4.fromBits = [float32x4, int16x8, int8x16, uint32x4, uint16x8, uint8x16];
int16x8.fromBits = [float32x4, int32x4, int8x16, uint32x4, uint16x8, uint8x16];
int8x16.fromBits = [float32x4, int32x4, int16x8, uint32x4, uint16x8, uint8x16];
uint32x4.fromBits = [float32x4, int32x4, int16x8, int8x16, uint16x8, uint8x16];
uint16x8.fromBits = [float32x4, int32x4, int16x8, int8x16, uint32x4, uint8x16];
uint8x16.fromBits = [float32x4, int32x4, int16x8, int8x16, uint32x4, uint16x8];
var simdTypes = [float32x4,
int32x4, int16x8, int8x16,
uint32x4, uint16x8, uint8x16,
bool32x4, bool16x8, bool8x16];
if (typeof simdPhase2 !== "undefined") {
var float64x2 = {
name: "Float64x2",
fn: SIMD.Float64x2,
floatLane: true,
signed: true,
numerical: true,
lanes: 2,
laneSize: 8,
interestingValues: [0, -0, 1, -1, 1.414, 0x7F, -0x80, -0x8000, -0x80000000,
0x7FFF, 0x7FFFFFFF, Infinity, -Infinity, NaN],
view: Float64Array,
buffer: _f64x2,
mulFn: binaryMul,
}
var bool64x2 = {
name: "Bool64x2",
fn: SIMD.Bool64x2,
boolLane: true,
lanes: 2,
laneSize: 8,
interestingValues: [true, false],
}
float64x2.boolType = bool64x2;
float32x4.fromBits.push(float64x2);
int32x4.fromBits.push(float64x2);
int16x8.fromBits.push(float64x2);
int8x16.fromBits.push(float64x2);
uint32x4.fromBits.push(float64x2);
uint16x8.fromBits.push(float64x2);
uint8x16.fromBits.push(float64x2);
float64x2.fromBits = [float32x4, int32x4, int16x8, int8x16,
uint32x4, uint16x8, uint8x16];
int32x4.fromBits = [float32x4, int16x8, int8x16, uint32x4,
uint16x8, uint8x16];
int16x8.fromBits = [float32x4, int32x4, int8x16, uint32x4,
uint16x8, uint8x16];
int8x16.fromBits = [float32x4, int32x4, int16x8, uint32x4,
uint16x8, uint8x16];
uint32x4.fromBits = [float32x4, int32x4, int16x8, int8x16,
uint16x8, uint8x16];
uint16x8.fromBits = [float32x4, int32x4, int16x8, int8x16,
uint32x4, uint8x16];
uint8x16.fromBits = [float32x4, int32x4, int16x8, int8x16,
uint32x4, uint16x8];
simdTypes.push(float64x2);
simdTypes.push(bool64x2);
}
// SIMD utility functions.
// Create a value for testing, with vanilla lane values, i.e. [0, 1, 2, ..]
// for numeric types, [false, true, true, ..] for boolean types. These test
// values shouldn't contain NaNs or other "interesting" values.
function createTestValue(type) {
var lanes = [];
for (var i = 0; i < type.lanes; i++)
lanes.push(i);
return type.fn.apply(type.fn, lanes);
}
function createSplatValue(type, v) {
var lanes = [];
for (var i = 0; i < type.lanes; i++)
lanes.push(v);
return type.fn.apply(type.fn, lanes);
}
// SIMD reference functions.
// Returns converted array buffer value of specified type.
function simdConvert(type, value) {
if (type.buffer === undefined) return !!value; // bool types
type.buffer[0] = value;
return type.buffer[0];
}
function checkValue(type, a, expect) {
var fail = false;
for (var i = 0; i < type.lanes; i++) {
var v = type.fn.extractLane(a, i);
var ev = simdConvert(type, expect(i));
if (!sameValue(ev, v) && Math.abs(ev - v) >= 0.00001)
fail = true;
}
if (fail) {
var lanes = [];
for (var i = 0; i < type.lanes; i++){
lanes.push(simdConvert(type, expect(i)));
}
$ERROR("expected SIMD." + type.name + "(" + lanes +
") but found " + a.toString());
}
}
// SIMD reference functions.
// Reference implementation of toLocaleString.
function simdToLocaleString(type, value) {
value = type.fn.check(value);
var str = "SIMD." + type.name + "(";
str += type.fn.extractLane(value, 0).toLocaleString();
for (var i = 1; i < type.lanes; i++) {
str += "," + type.fn.extractLane(value, i).toLocaleString();
}
return str + ")";
}
function equalInt32x4(a, b) {
assert.sameValue(SIMD.Int32x4.extractLane(a, 0),
SIMD.Int32x4.extractLane(b, 0));
assert.sameValue(SIMD.Int32x4.extractLane(a, 1),
SIMD.Int32x4.extractLane(b, 1));
assert.sameValue(SIMD.Int32x4.extractLane(a, 2),
SIMD.Int32x4.extractLane(b, 2));
assert.sameValue(SIMD.Int32x4.extractLane(a, 3),
SIMD.Int32x4.extractLane(b, 3));
}
// Compare unary op's behavior to ref op at each lane.
function testUnaryOp(type, op, refOp) {
assert.sameValue("function", typeof type.fn[op]);
for (var v of type.interestingValues) {
var expected = simdConvert(type, refOp(v));
var a = type.fn.splat(v);
var result = type.fn[op](a);
checkValue(type, result, function(index) { return expected; });
}
}
// Compare binary op's behavior to ref op at each lane with the Cartesian
// product of the given values.
function testBinaryOp(type, op, refOp) {
assert.sameValue("function", typeof type.fn[op]);
var zero = type.fn();
for (var av of type.interestingValues) {
for (var bv of type.interestingValues) {
var expected = simdConvert(type, refOp(simdConvert(type, av),
simdConvert(type, bv)));
var a = type.fn.splat(av);
var b = type.fn.splat(bv);
var result = type.fn[op](a, b);
checkValue(type, result, function(index) { return expected; });
}
}
}
// Compare relational op's behavior to ref op at each lane with the Cartesian
// product of the given values.
function testRelationalOp(type, op, refOp) {
assert.sameValue("function", typeof type.fn[op]);
var zero = type.fn();
for (var av of type.interestingValues) {
for (var bv of type.interestingValues) {
var expected = refOp(simdConvert(type, av), simdConvert(type, bv));
var a = type.fn.splat(av);
var b = type.fn.splat(bv);
var result = type.fn[op](a, b);
checkValue(type.boolType, result, function(index) { return expected; });
}
}
}
// Test utilities.
var currentName = "<global>";
var skipValueTests = false;
function testSimdFunction(name, func) {
currentName = name;
if (typeof skipValueTests !== "undefined" && skipValueTests &&
name.indexOf("value semantics") != -1) return;
try {
func();
} catch (e) {
e.message += " (Testing with " + name + ".)";
throw e;
}
}