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// |reftest| skip-if(!this.hasOwnProperty("SIMD"))
/*
* Any copyright is dedicated to the Public Domain.
* https://creativecommons.org/publicdomain/zero/1.0/
*/
var Float32x4 = SIMD.Float32x4;
var Float64x2 = SIMD.Float64x2;
var Int8x16 = SIMD.Int8x16;
var Int16x8 = SIMD.Int16x8;
var Int32x4 = SIMD.Int32x4;
var Uint8x16 = SIMD.Uint8x16;
var Uint16x8 = SIMD.Uint16x8;
var Uint32x4 = SIMD.Uint32x4;
var Bool8x16 = SIMD.Bool8x16;
var Bool16x8 = SIMD.Bool16x8;
var Bool32x4 = SIMD.Bool32x4;
var Bool64x2 = SIMD.Bool64x2;
function getMask(i, maskLength) {
var args = [];
for (var j = 0; j < maskLength; j++)
args.push((i >> j) & 1);
if (maskLength == 2)
return Bool64x2(...args);
else if (maskLength == 4)
return Bool32x4(...args);
else if (maskLength == 8)
return Bool16x8(...args);
else if (maskLength == 16)
return Bool8x16(...args);
else
throw new Error("Invalid mask length.");
}
function select(mask, ifTrue, ifFalse) {
var m = simdToArray(mask);
var tv = simdToArray(ifTrue);
var fv = simdToArray(ifFalse);
return m.map(function(v, i) {
return (v ? tv : fv)[i];
});
}
/**
* Tests type.select on all input pairs, for all possible masks. As the mask
* has 4 lanes (for Int32x4) and 2 possible values (true or false), there are 16 possible
* masks. For Int8x16, the mask has 16 lanes and 2 possible values, so there are 256
* possible masks. For Int16x8, the mask has 8 lanes and 2 possible values, so there
* are 64 possible masks.
*/
function testSelect(type, inputs) {
var x, y;
var maskLength = simdLengthType(type);
for (var i = 0; i < Math.pow(maskLength, 2); i++) {
var mask = getMask(i, maskLength);
for ([x, y] of inputs)
assertEqVec(type.select(mask, x, y), select(mask, x, y));
}
}
function test() {
var inputs = [
[Int8x16(0,4,9,16,25,36,49,64,81,121,-4,-9,-16,-25,-36,-49), Int8x16(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16)],
[Int8x16(-1, 2, INT8_MAX, INT8_MIN, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16),
Int8x16(INT8_MAX, -4, INT8_MIN, 42, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)]
];
testSelect(Int8x16, inputs);
inputs = [
[Int16x8(0,4,9,16,25,36,49,64), Int16x8(1,2,3,4,5,6,7,8)],
[Int16x8(-1, 2, INT16_MAX, INT16_MIN, 5, 6, 7, 8),
Int16x8(INT16_MAX, -4, INT16_MIN, 42, 5, 6, 7, 8)]
];
testSelect(Int16x8, inputs);
inputs = [
[Int32x4(0,4,9,16), Int32x4(1,2,3,4)],
[Int32x4(-1, 2, INT32_MAX, INT32_MIN), Int32x4(INT32_MAX, -4, INT32_MIN, 42)]
];
testSelect(Int32x4, inputs);
inputs = [
[Uint8x16(0,4,9,16,25,36,49,64,81,121,-4,-9,-16,-25,-36,-49), Uint8x16(1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16)],
[Uint8x16(-1, 2, INT8_MAX, INT8_MIN, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16),
Uint8x16(INT8_MAX, -4, INT8_MIN, 42, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)]
];
testSelect(Uint8x16, inputs);
inputs = [
[Uint16x8(0,4,9,16,25,36,49,64), Uint16x8(1,2,3,4,5,6,7,8)],
[Uint16x8(-1, 2, INT16_MAX, INT16_MIN, 5, 6, 7, 8),
Uint16x8(INT16_MAX, -4, INT16_MIN, 42, 5, 6, 7, 8)]
];
testSelect(Uint16x8, inputs);
inputs = [
[Uint32x4(0,4,9,16), Uint32x4(1,2,3,4)],
[Uint32x4(-1, 2, INT32_MAX, INT32_MIN), Uint32x4(INT32_MAX, -4, INT32_MIN, 42)]
];
testSelect(Uint32x4, inputs);
inputs = [
[Float32x4(0.125,4.25,9.75,16.125), Float32x4(1.5,2.75,3.25,4.5)],
[Float32x4(-1.5,-0,NaN,-Infinity), Float32x4(1,-2,13.37,3.13)],
[Float32x4(1.5,2.75,NaN,Infinity), Float32x4(-NaN,-Infinity,9.75,16.125)]
];
testSelect(Float32x4, inputs);
inputs = [
[Float64x2(0.125,4.25), Float64x2(9.75,16.125)],
[Float64x2(1.5,2.75), Float64x2(3.25,4.5)],
[Float64x2(-1.5,-0), Float64x2(NaN,-Infinity)],
[Float64x2(1,-2), Float64x2(13.37,3.13)],
[Float64x2(1.5,2.75), Float64x2(NaN,Infinity)],
[Float64x2(-NaN,-Infinity), Float64x2(9.75,16.125)]
];
testSelect(Float64x2, inputs);
if (typeof reportCompare === "function")
reportCompare(true, true);
}
test();
|
