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/*
vim: set ts=8 sts=2 et sw=2 tw=79:
Copyright (C) 2013
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
// A conforming SIMD.js implementation may contain the following deviations to
// normal JS numeric behavior:
// - Subnormal numbers may or may not be flushed to zero on input or output of
// any SIMD operation.
// Many of the operations in SIMD.js have semantics which correspond to scalar
// operations in JS, however there are a few differences:
// - Vector shifts don't mask the shift count.
// - Conversions from float to int32 throw on error.
// - Load and store operations throw when out of bounds.
(
function
(
global
)
{
if
(
typeof
global
.
SIMD
===
"undefined"
)
{
// SIMD module.
global
.
SIMD
=
{
}
;
}
if
(
typeof
module
!==
"undefined"
)
{
// For CommonJS modules
module
.
exports
=
global
.
SIMD
;
}
var
SIMD
=
global
.
SIMD
;
// Buffers for bit casting and coercing lane values to those representable in
// the underlying lane type.
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
)
;
function
convertValue
(
buffer
,
value
)
{
buffer
[
0
]
=
value
;
return
buffer
[
0
]
;
}
function
convertArray
(
buffer
,
array
)
{
for
(
var
i
=
0
;
i
<
array
.
length
;
i
++
)
array
[
i
]
=
convertValue
(
buffer
,
array
[
i
]
)
;
return
array
;
}
// Utility functions.
function
isInt32
(
o
)
{
return
(
o
|
0
)
===
o
;
}
function
isTypedArray
(
o
)
{
return
(
o
instanceof
Int8Array
)
||
(
o
instanceof
Uint8Array
)
||
(
o
instanceof
Uint8ClampedArray
)
||
(
o
instanceof
Int16Array
)
||
(
o
instanceof
Uint16Array
)
||
(
o
instanceof
Int32Array
)
||
(
o
instanceof
Uint32Array
)
||
(
o
instanceof
Float32Array
)
||
(
o
instanceof
Float64Array
)
;
}
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
clamp
(
a
,
min
,
max
)
{
if
(
a
<
min
)
return
min
;
if
(
a
>
max
)
return
max
;
return
a
;
}
// SIMD implementation functions
function
simdCheckLaneIndex
(
index
,
lanes
)
{
if
(
!
isInt32
(
index
)
)
throw
new
TypeError
(
'Lane index must be an int32'
)
;
if
(
index
<
0
||
index
>=
lanes
)
throw
new
RangeError
(
'Lane index must be in bounds'
)
;
}
// Global lanes array for constructing SIMD values.
var
lanes
=
[
]
;
function
simdCreate
(
type
)
{
// XXX Emscripten:
// Work around v8 NaN canonicalization issue: if lanes contains floats with non-canonical NaN bit patterns,
// type.fn.apply() will canonicalize the NaNs and the bits are lost (most likely as part of float->double expansion).
// Directly passing the arguments into the function preserves them.
if
(
type
.
name
==
"Float32x4"
)
{
return
SIMD
.
Float32x4
(
lanes
[
0
]
,
lanes
[
1
]
,
lanes
[
2
]
,
lanes
[
3
]
)
;
}
else
{
return
type
.
fn
.
apply
(
type
.
fn
,
lanes
)
;
}
}
function
simdToString
(
type
,
a
)
{
a
=
type
.
fn
.
check
(
a
)
;
var
str
=
"SIMD."
+
type
.
name
+
"("
;
str
+=
type
.
fn
.
extractLane
(
a
,
0
)
;
for
(
var
i
=
1
;
i
<
type
.
lanes
;
i
++
)
{
str
+=
", "
+
type
.
fn
.
extractLane
(
a
,
i
)
;
}
return
str
+
")"
;
}
function
simdToLocaleString
(
type
,
a
)
{
a
=
type
.
fn
.
check
(
a
)
;
var
str
=
"SIMD."
+
type
.
name
+
"("
;
str
+=
type
.
fn
.
extractLane
(
a
,
0
)
.
toLocaleString
(
)
;
for
(
var
i
=
1
;
i
<
type
.
lanes
;
i
++
)
{
str
+=
", "
+
type
.
fn
.
extractLane
(
a
,
i
)
.
toLocaleString
(
)
;
}
return
str
+
")"
;
}
function
simdSplat
(
type
,
s
)
{
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
lanes
[
i
]
=
s
;
return
simdCreate
(
type
)
;
}
function
simdReplaceLane
(
type
,
a
,
i
,
s
)
{
a
=
type
.
fn
.
check
(
a
)
;
simdCheckLaneIndex
(
i
,
type
.
lanes
)
;
for
(
var
j
=
0
;
j
<
type
.
lanes
;
j
++
)
lanes
[
j
]
=
type
.
fn
.
extractLane
(
a
,
j
)
;
lanes
[
i
]
=
s
;
return
simdCreate
(
type
)
;
}
function
simdFrom
(
toType
,
fromType
,
a
)
{
a
=
fromType
.
fn
.
check
(
a
)
;
for
(
var
i
=
0
;
i
<
fromType
.
lanes
;
i
++
)
{
var
v
=
fromType
.
fn
.
extractLane
(
a
,
i
)
;
if
(
toType
.
minVal
!==
undefined
&&
(
v
<
toType
.
minVal
||
v
>
toType
.
maxVal
)
)
{
throw
new
RangeError
(
"Can't convert value"
)
;
}
lanes
[
i
]
=
v
;
}
return
simdCreate
(
toType
)
;
}
function
simdFromBits
(
toType
,
fromType
,
a
)
{
a
=
fromType
.
fn
.
check
(
a
)
;
for
(
var
i
=
0
;
i
<
fromType
.
lanes
;
i
++
)
fromType
.
buffer
[
i
]
=
fromType
.
fn
.
extractLane
(
a
,
i
)
;
for
(
var
i
=
0
;
i
<
toType
.
lanes
;
i
++
)
lanes
[
i
]
=
toType
.
buffer
[
i
]
;
return
simdCreate
(
toType
)
;
}
function
simdSelect
(
type
,
selector
,
a
,
b
)
{
selector
=
type
.
boolType
.
fn
.
check
(
selector
)
;
a
=
type
.
fn
.
check
(
a
)
;
b
=
type
.
fn
.
check
(
b
)
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
{
lanes
[
i
]
=
type
.
boolType
.
fn
.
extractLane
(
selector
,
i
)
?
type
.
fn
.
extractLane
(
a
,
i
)
:
type
.
fn
.
extractLane
(
b
,
i
)
;
}
return
simdCreate
(
type
)
;
}
function
simdSwizzle
(
type
,
a
,
indices
)
{
a
=
type
.
fn
.
check
(
a
)
;
for
(
var
i
=
0
;
i
<
indices
.
length
;
i
++
)
{
simdCheckLaneIndex
(
indices
[
i
]
,
type
.
lanes
)
;
lanes
[
i
]
=
type
.
fn
.
extractLane
(
a
,
indices
[
i
]
)
;
}
return
simdCreate
(
type
)
;
}
function
simdShuffle
(
type
,
a
,
b
,
indices
)
{
a
=
type
.
fn
.
check
(
a
)
;
b
=
type
.
fn
.
check
(
b
)
;
for
(
var
i
=
0
;
i
<
indices
.
length
;
i
++
)
{
simdCheckLaneIndex
(
indices
[
i
]
,
2
*
type
.
lanes
)
;
lanes
[
i
]
=
indices
[
i
]
<
type
.
lanes
?
type
.
fn
.
extractLane
(
a
,
indices
[
i
]
)
:
type
.
fn
.
extractLane
(
b
,
indices
[
i
]
-
type
.
lanes
)
;
}
return
simdCreate
(
type
)
;
}
function
unaryNeg
(
a
)
{
return
-
a
;
}
function
unaryBitwiseNot
(
a
)
{
return
~
a
;
}
function
unaryLogicalNot
(
a
)
{
return
!
a
;
}
function
simdUnaryOp
(
type
,
op
,
a
)
{
a
=
type
.
fn
.
check
(
a
)
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
lanes
[
i
]
=
op
(
type
.
fn
.
extractLane
(
a
,
i
)
)
;
return
simdCreate
(
type
)
;
}
function
binaryAnd
(
a
,
b
)
{
return
a
&
b
;
}
function
binaryOr
(
a
,
b
)
{
return
a
|
b
;
}
function
binaryXor
(
a
,
b
)
{
return
a
^
b
;
}
function
binaryAdd
(
a
,
b
)
{
return
a
+
b
;
}
function
binarySub
(
a
,
b
)
{
return
a
-
b
;
}
function
binaryMul
(
a
,
b
)
{
return
a
*
b
;
}
function
binaryDiv
(
a
,
b
)
{
return
a
/
b
;
}
function
binaryAbsDiff
(
a
,
b
)
{
return
Math
.
abs
(
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
)
;
}
;
}
function
simdBinaryOp
(
type
,
op
,
a
,
b
)
{
a
=
type
.
fn
.
check
(
a
)
;
b
=
type
.
fn
.
check
(
b
)
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
lanes
[
i
]
=
op
(
type
.
fn
.
extractLane
(
a
,
i
)
,
type
.
fn
.
extractLane
(
b
,
i
)
)
;
return
simdCreate
(
type
)
;
}
function
simdWideningBinaryOp
(
type
,
op
,
a
,
b
)
{
a
=
type
.
fn
.
check
(
a
)
;
b
=
type
.
fn
.
check
(
b
)
;
for
(
var
i
=
0
;
i
<
type
.
wideType
.
lanes
;
i
++
)
lanes
[
i
]
=
op
(
type
.
fn
.
extractLane
(
a
,
i
)
,
type
.
fn
.
extractLane
(
b
,
i
)
)
;
return
simdCreate
(
type
.
wideType
)
;
}
function
binaryEqual
(
a
,
b
)
{
return
a
==
b
;
}
function
binaryNotEqual
(
a
,
b
)
{
return
a
!=
b
;
}
function
binaryLess
(
a
,
b
)
{
return
a
<
b
;
}
function
binaryLessEqual
(
a
,
b
)
{
return
a
<=
b
;
}
function
binaryGreater
(
a
,
b
)
{
return
a
>
b
;
}
function
binaryGreaterEqual
(
a
,
b
)
{
return
a
>=
b
;
}
function
simdRelationalOp
(
type
,
op
,
a
,
b
)
{
a
=
type
.
fn
.
check
(
a
)
;
b
=
type
.
fn
.
check
(
b
)
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
lanes
[
i
]
=
op
(
type
.
fn
.
extractLane
(
a
,
i
)
,
type
.
fn
.
extractLane
(
b
,
i
)
)
;
return
simdCreate
(
type
.
boolType
)
;
}
function
simdAnyTrue
(
type
,
a
)
{
a
=
type
.
fn
.
check
(
a
)
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
if
(
type
.
fn
.
extractLane
(
a
,
i
)
)
return
true
;
return
false
;
}
function
simdAllTrue
(
type
,
a
)
{
a
=
type
.
fn
.
check
(
a
)
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
if
(
!
type
.
fn
.
extractLane
(
a
,
i
)
)
return
false
;
return
true
;
}
function
binaryShiftLeft
(
a
,
bits
)
{
return
a
<<
bits
;
}
function
binaryShiftRightArithmetic
(
a
,
bits
)
{
return
a
>>
bits
;
}
function
simdShiftOp
(
type
,
op
,
a
,
bits
)
{
a
=
type
.
fn
.
check
(
a
)
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
lanes
[
i
]
=
op
(
type
.
fn
.
extractLane
(
a
,
i
)
,
bits
)
;
return
simdCreate
(
type
)
;
}
function
simdHorizontalSum
(
type
,
a
)
{
a
=
type
.
fn
.
check
(
a
)
;
var
result
=
0
;
for
(
var
i
=
0
;
i
<
type
.
lanes
;
i
++
)
result
+=
type
.
fn
.
extractLane
(
a
,
i
)
;
return
result
;
}
function
simdLoad
(
type
,
tarray
,
index
,
count
)
{
if
(
!
isTypedArray
(
tarray
)
)
throw
new
TypeError
(
"The 1st argument must be a typed array."
)
;
if
(
!
isInt32
(
index
)
)
throw
new
TypeError
(
"The 2nd argument must be an Int32."
)
;
var
bpe
=
tarray
.
BYTES_PER_ELEMENT
;
var
bytes
=
count
*
type
.
laneSize
;
if
(
index
<
0
||
(
index
*
bpe
+
bytes
)
>
tarray
.
byteLength
)
throw
new
RangeError
(
"The value of index is invalid."
)
;
var
buf
=
type
.
buffer
;
var
array
=
bpe
==
1
?
_i8x16
:
bpe
==
2
?
_i16x8
:
bpe
==
4
?
(
tarray
instanceof
Float32Array
?
_f32x4
:
_i32x4
)
:
_f64x2
;
var
n
=
bytes
/
bpe
;
for
(
var
i
=
0
;
i
<
n
;
i
++
)
array
[
i
]
=
tarray
[
index
+
i
]
;
for
(
i
=
0
;
i
<
count
;
i
++
)
lanes
[
i
]
=
buf
[
i
]
;
for
(
;
i
<
type
.
lanes
;
i
++
)
lanes
[
i
]
=
0
;
return
simdCreate
(
type
)
;
}
function
simdStore
(
type
,
tarray
,
index
,
a
,
count
)
{
if
(
!
isTypedArray
(
tarray
)
)
throw
new
TypeError
(
"The 1st argument must be a typed array."
)
;
if
(
!
isInt32
(
index
)
)
throw
new
TypeError
(
"The 2nd argument must be an Int32."
)
;
var
bpe
=
tarray
.
BYTES_PER_ELEMENT
;
var
bytes
=
count
*
type
.
laneSize
;
if
(
index
<
0
||
(
index
*
bpe
+
bytes
)
>
tarray
.
byteLength
)
throw
new
RangeError
(
"The value of index is invalid."
)
;
a
=
type
.
fn
.
check
(
a
)
;
// If count is odd and tarray's elements are 8 bytes wide, we have to create
// a new view.
if
(
(
count
%
2
!=
0
)
&&
bpe
==
8
)
{
var
view
=
new
type
.
view
(
tarray
.
buffer
,
tarray
.
byteOffset
+
index
*
8
,
count
)
;
for
(
var
i
=
0
;
i
<
count
;
i
++
)
view
[
i
]
=
type
.
fn
.
extractLane
(
a
,
i
)
;
}
else
{
for
(
var
i
=
0
;
i
<
count
;
i
++
)
type
.
buffer
[
i
]
=
type
.
fn
.
extractLane
(
a
,
i
)
;
var
array
=
bpe
==
1
?
_i8x16
:
bpe
==
2
?
_i16x8
:
bpe
==
4
?
(
tarray
instanceof
Float32Array
?
_f32x4
:
_i32x4
)
:
_f64x2
;
var
n
=
bytes
/
bpe
;
for
(
var
i
=
0
;
i
<
n
;
i
++
)
tarray
[
index
+
i
]
=
array
[
i
]
;
}
return
a
;
}
// Constructors and extractLane functions are closely related and must be
// polyfilled together.
// Bool64x2
if
(
typeof
SIMD
.
Bool64x2
===
"undefined"
||
typeof
SIMD
.
Bool64x2
.
extractLane
===
"undefined"
)
{
SIMD
.
Bool64x2
=
function
(
s0
,
s1
)
{
if
(
!
(
this
instanceof
SIMD
.
Bool64x2
)
)
{
return
new
SIMD
.
Bool64x2
(
s0
,
s1
)
;
}
this
.
s_
=
[
!
!
s0
,
!
!
s1
]
;
}
SIMD
.
Bool64x2
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Bool64x2
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
2
)
;
return
v
.
s_
[
i
]
;
}
}
// Bool32x4
if
(
typeof
SIMD
.
Bool32x4
===
"undefined"
||
typeof
SIMD
.
Bool32x4
.
extractLane
===
"undefined"
)
{
SIMD
.
Bool32x4
=
function
(
s0
,
s1
,
s2
,
s3
)
{
if
(
!
(
this
instanceof
SIMD
.
Bool32x4
)
)
{
return
new
SIMD
.
Bool32x4
(
s0
,
s1
,
s2
,
s3
)
;
}
this
.
s_
=
[
!
!
s0
,
!
!
s1
,
!
!
s2
,
!
!
s3
]
;
}
SIMD
.
Bool32x4
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Bool32x4
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
4
)
;
return
v
.
s_
[
i
]
;
}
}
// Bool16x8
if
(
typeof
SIMD
.
Bool16x8
===
"undefined"
||
typeof
SIMD
.
Bool16x8
.
extractLane
===
"undefined"
)
{
SIMD
.
Bool16x8
=
function
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
)
{
if
(
!
(
this
instanceof
SIMD
.
Bool16x8
)
)
{
return
new
SIMD
.
Bool16x8
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
)
;
}
this
.
s_
=
[
!
!
s0
,
!
!
s1
,
!
!
s2
,
!
!
s3
,
!
!
s4
,
!
!
s5
,
!
!
s6
,
!
!
s7
]
;
}
SIMD
.
Bool16x8
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Bool16x8
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
8
)
;
return
v
.
s_
[
i
]
;
}
}
// Bool8x16
if
(
typeof
SIMD
.
Bool8x16
===
"undefined"
||
typeof
SIMD
.
Bool8x16
.
extractLane
===
"undefined"
)
{
SIMD
.
Bool8x16
=
function
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
)
{
if
(
!
(
this
instanceof
SIMD
.
Bool8x16
)
)
{
return
new
SIMD
.
Bool8x16
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
)
;
}
this
.
s_
=
[
!
!
s0
,
!
!
s1
,
!
!
s2
,
!
!
s3
,
!
!
s4
,
!
!
s5
,
!
!
s6
,
!
!
s7
,
!
!
s8
,
!
!
s9
,
!
!
s10
,
!
!
s11
,
!
!
s12
,
!
!
s13
,
!
!
s14
,
!
!
s15
]
;
}
SIMD
.
Bool8x16
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Bool8x16
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
16
)
;
return
v
.
s_
[
i
]
;
}
}
// Float64x2
if
(
typeof
SIMD
.
Float64x2
===
"undefined"
||
typeof
SIMD
.
Float64x2
.
extractLane
===
"undefined"
)
{
SIMD
.
Float64x2
=
function
(
s0
,
s1
)
{
if
(
!
(
this
instanceof
SIMD
.
Float64x2
)
)
{
return
new
SIMD
.
Float64x2
(
s0
,
s1
)
;
}
this
.
s_
=
convertArray
(
_f64x2
,
[
s0
,
s1
]
)
;
}
SIMD
.
Float64x2
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Float64x2
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
2
)
;
return
v
.
s_
[
i
]
;
}
}
// Float32x4
if
(
typeof
SIMD
.
Float32x4
===
"undefined"
||
typeof
SIMD
.
Float32x4
.
extractLane
===
"undefined"
)
{
SIMD
.
Float32x4
=
function
(
s0
,
s1
,
s2
,
s3
)
{
if
(
!
(
this
instanceof
SIMD
.
Float32x4
)
)
{
return
new
SIMD
.
Float32x4
(
s0
,
s1
,
s2
,
s3
)
;
}
// XXX Emscripten:
// Don't use convertArray() here to construct the Float32x4, since v8 most likely due to float->double
// expansion will lose noncanonical NaN bits if present, producing an incorrect bit pattern as a result.
this
.
s_
=
new
Float32Array
(
new
ArrayBuffer
(
16
)
)
;
this
.
s_
[
0
]
=
s0
;
this
.
s_
[
1
]
=
s1
;
this
.
s_
[
2
]
=
s2
;
this
.
s_
[
3
]
=
s3
;
}
SIMD
.
Float32x4
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Float32x4
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
4
)
;
return
v
.
s_
[
i
]
;
}
}
// Int32x4
if
(
typeof
SIMD
.
Int32x4
===
"undefined"
||
typeof
SIMD
.
Int32x4
.
extractLane
===
"undefined"
)
{
SIMD
.
Int32x4
=
function
(
s0
,
s1
,
s2
,
s3
)
{
if
(
!
(
this
instanceof
SIMD
.
Int32x4
)
)
{
return
new
SIMD
.
Int32x4
(
s0
,
s1
,
s2
,
s3
)
;
}
this
.
s_
=
convertArray
(
_i32x4
,
[
s0
,
s1
,
s2
,
s3
]
)
;
}
SIMD
.
Int32x4
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Int32x4
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
4
)
;
return
v
.
s_
[
i
]
;
}
}
// Int16x8
if
(
typeof
SIMD
.
Int16x8
===
"undefined"
||
typeof
SIMD
.
Int16x8
.
extractLane
===
"undefined"
)
{
SIMD
.
Int16x8
=
function
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
)
{
if
(
!
(
this
instanceof
SIMD
.
Int16x8
)
)
{
return
new
SIMD
.
Int16x8
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
)
;
}
this
.
s_
=
convertArray
(
_i16x8
,
[
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
]
)
;
}
SIMD
.
Int16x8
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Int16x8
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
8
)
;
return
v
.
s_
[
i
]
;
}
}
// Int8x16
if
(
typeof
SIMD
.
Int8x16
===
"undefined"
||
typeof
SIMD
.
Int8x16
.
extractLane
===
"undefined"
)
{
SIMD
.
Int8x16
=
function
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
)
{
if
(
!
(
this
instanceof
SIMD
.
Int8x16
)
)
{
return
new
SIMD
.
Int8x16
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
)
;
}
this
.
s_
=
convertArray
(
_i8x16
,
[
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
]
)
;
}
SIMD
.
Int8x16
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Int8x16
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
16
)
;
return
v
.
s_
[
i
]
;
}
}
// Uint32x4
if
(
typeof
SIMD
.
Uint32x4
===
"undefined"
||
typeof
SIMD
.
Uint32x4
.
extractLane
===
"undefined"
)
{
SIMD
.
Uint32x4
=
function
(
s0
,
s1
,
s2
,
s3
)
{
if
(
!
(
this
instanceof
SIMD
.
Uint32x4
)
)
{
return
new
SIMD
.
Uint32x4
(
s0
,
s1
,
s2
,
s3
)
;
}
this
.
s_
=
convertArray
(
_ui32x4
,
[
s0
,
s1
,
s2
,
s3
]
)
;
}
SIMD
.
Uint32x4
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Uint32x4
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
4
)
;
return
v
.
s_
[
i
]
;
}
}
// Uint16x8
if
(
typeof
SIMD
.
Uint16x8
===
"undefined"
||
typeof
SIMD
.
Uint16x8
.
extractLane
===
"undefined"
)
{
SIMD
.
Uint16x8
=
function
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
)
{
if
(
!
(
this
instanceof
SIMD
.
Uint16x8
)
)
{
return
new
SIMD
.
Uint16x8
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
)
;
}
this
.
s_
=
convertArray
(
_ui16x8
,
[
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
]
)
;
}
SIMD
.
Uint16x8
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Uint16x8
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
8
)
;
return
v
.
s_
[
i
]
;
}
}
// Uint8x16
if
(
typeof
SIMD
.
Uint8x16
===
"undefined"
||
typeof
SIMD
.
Uint8x16
.
extractLane
===
"undefined"
)
{
SIMD
.
Uint8x16
=
function
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
)
{
if
(
!
(
this
instanceof
SIMD
.
Uint8x16
)
)
{
return
new
SIMD
.
Uint8x16
(
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
)
;
}
this
.
s_
=
convertArray
(
_ui8x16
,
[
s0
,
s1
,
s2
,
s3
,
s4
,
s5
,
s6
,
s7
,
s8
,
s9
,
s10
,
s11
,
s12
,
s13
,
s14
,
s15
]
)
;
}
SIMD
.
Uint8x16
.
extractLane
=
function
(
v
,
i
)
{
v
=
SIMD
.
Uint8x16
.
check
(
v
)
;
simdCheckLaneIndex
(
i
,
16
)
;
return
v
.
s_
[
i
]
;
}
}
var
float32x4
=
{
name
:
"Float32x4"
,
fn
:
SIMD
.
Float32x4
,
lanes
:
4
,
laneSize
:
4
,
buffer
:
_f32x4
,
view
:
Float32Array
,
mulFn
:
binaryMul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"add"
,
"sub"
,
"mul"
,
"div"
,
"neg"
,
"abs"
,
"min"
,
"max"
,
"minNum"
,
"maxNum"
,
"reciprocalApproximation"
,
"reciprocalSqrtApproximation"
,
"sqrt"
,
"load"
,
"load1"
,
"load2"
,
"load3"
,
"store"
,
"store1"
,
"store2"
,
"store3"
]
,
}
var
float64x2
=
{
name
:
"Float64x2"
,
fn
:
SIMD
.
Float64x2
,
lanes
:
2
,
laneSize
:
8
,
buffer
:
_f64x2
,
view
:
Float64Array
,
mulFn
:
binaryMul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"add"
,
"sub"
,
"mul"
,
"div"
,
"neg"
,
"abs"
,
"min"
,
"max"
,
"minNum"
,
"maxNum"
,
"reciprocalApproximation"
,
"reciprocalSqrtApproximation"
,
"sqrt"
,
"load"
,
"load1"
,
"load2"
,
"load3"
,
"store"
,
"store1"
,
"store2"
,
"store3"
]
,
}
var
int32x4
=
{
name
:
"Int32x4"
,
fn
:
SIMD
.
Int32x4
,
lanes
:
4
,
laneSize
:
4
,
minVal
:
-
0x80000000
,
maxVal
:
0x7FFFFFFF
,
buffer
:
_i32x4
,
notFn
:
unaryBitwiseNot
,
view
:
Int32Array
,
mulFn
:
binaryImul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"and"
,
"or"
,
"xor"
,
"not"
,
"add"
,
"sub"
,
"mul"
,
"neg"
,
"min"
,
"max"
,
"shiftLeftByScalar"
,
"shiftRightArithmeticByScalar"
,
"load"
,
"load1"
,
"load2"
,
"load3"
,
"store"
,
"store1"
,
"store2"
,
"store3"
]
,
}
var
int16x8
=
{
name
:
"Int16x8"
,
fn
:
SIMD
.
Int16x8
,
lanes
:
8
,
laneSize
:
2
,
minVal
:
-
0x8000
,
maxVal
:
0x7FFF
,
buffer
:
_i16x8
,
notFn
:
unaryBitwiseNot
,
view
:
Int16Array
,
mulFn
:
binaryMul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"and"
,
"or"
,
"xor"
,
"not"
,
"add"
,
"sub"
,
"mul"
,
"neg"
,
"min"
,
"max"
,
"shiftLeftByScalar"
,
"shiftRightArithmeticByScalar"
,
"addSaturate"
,
"subSaturate"
,
"load"
,
"store"
]
,
}
var
int8x16
=
{
name
:
"Int8x16"
,
fn
:
SIMD
.
Int8x16
,
lanes
:
16
,
laneSize
:
1
,
minVal
:
-
0x80
,
maxVal
:
0x7F
,
buffer
:
_i8x16
,
notFn
:
unaryBitwiseNot
,
view
:
Int8Array
,
mulFn
:
binaryMul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"and"
,
"or"
,
"xor"
,
"not"
,
"add"
,
"sub"
,
"mul"
,
"neg"
,
"min"
,
"max"
,
"shiftLeftByScalar"
,
"shiftRightArithmeticByScalar"
,
"addSaturate"
,
"subSaturate"
,
"load"
,
"store"
]
,
}
var
uint32x4
=
{
name
:
"Uint32x4"
,
fn
:
SIMD
.
Uint32x4
,
lanes
:
4
,
laneSize
:
4
,
minVal
:
0
,
maxVal
:
0xFFFFFFFF
,
unsigned
:
true
,
buffer
:
_ui32x4
,
notFn
:
unaryBitwiseNot
,
view
:
Uint32Array
,
mulFn
:
binaryImul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"and"
,
"or"
,
"xor"
,
"not"
,
"add"
,
"sub"
,
"mul"
,
"min"
,
"max"
,
"shiftLeftByScalar"
,
"shiftRightLogicalByScalar"
,
"horizontalSum"
,
"load"
,
"load1"
,
"load2"
,
"load3"
,
"store"
,
"store1"
,
"store2"
,
"store3"
]
,
}
var
uint16x8
=
{
name
:
"Uint16x8"
,
fn
:
SIMD
.
Uint16x8
,
lanes
:
8
,
laneSize
:
2
,
unsigned
:
true
,
minVal
:
0
,
maxVal
:
0xFFFF
,
buffer
:
_ui16x8
,
notFn
:
unaryBitwiseNot
,
view
:
Uint16Array
,
mulFn
:
binaryMul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"and"
,
"or"
,
"xor"
,
"not"
,
"add"
,
"sub"
,
"mul"
,
"min"
,
"max"
,
"shiftLeftByScalar"
,
"shiftRightLogicalByScalar"
,
"horizontalSum"
,
"absoluteDifference"
,
"widenedAbsoluteDifference"
,
"addSaturate"
,
"subSaturate"
,
"load"
,
"store"
]
,
}
var
uint8x16
=
{
name
:
"Uint8x16"
,
fn
:
SIMD
.
Uint8x16
,
lanes
:
16
,
laneSize
:
1
,
unsigned
:
true
,
minVal
:
0
,
maxVal
:
0xFF
,
buffer
:
_ui8x16
,
notFn
:
unaryBitwiseNot
,
view
:
Uint8Array
,
mulFn
:
binaryMul
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"select"
,
"equal"
,
"notEqual"
,
"lessThan"
,
"lessThanOrEqual"
,
"greaterThan"
,
"greaterThanOrEqual"
,
"and"
,
"or"
,
"xor"
,
"not"
,
"add"
,
"sub"
,
"mul"
,
"min"
,
"max"
,
"shiftLeftByScalar"
,
"shiftRightLogicalByScalar"
,
"horizontalSum"
,
"absoluteDifference"
,
"widenedAbsoluteDifference"
,
"addSaturate"
,
"subSaturate"
,
"load"
,
"store"
]
,
}
var
bool64x2
=
{
name
:
"Bool64x2"
,
fn
:
SIMD
.
Bool64x2
,
lanes
:
2
,
laneSize
:
8
,
notFn
:
unaryLogicalNot
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"allTrue"
,
"anyTrue"
,
"and"
,
"or"
,
"xor"
,
"not"
]
,
}
var
bool32x4
=
{
name
:
"Bool32x4"
,
fn
:
SIMD
.
Bool32x4
,
lanes
:
4
,
laneSize
:
4
,
notFn
:
unaryLogicalNot
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"allTrue"
,
"anyTrue"
,
"and"
,
"or"
,
"xor"
,
"not"
]
,
}
var
bool16x8
=
{
name
:
"Bool16x8"
,
fn
:
SIMD
.
Bool16x8
,
lanes
:
8
,
laneSize
:
2
,
notFn
:
unaryLogicalNot
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"allTrue"
,
"anyTrue"
,
"and"
,
"or"
,
"xor"
,
"not"
]
,
}
var
bool8x16
=
{
name
:
"Bool8x16"
,
fn
:
SIMD
.
Bool8x16
,
lanes
:
16
,
laneSize
:
1
,
notFn
:
unaryLogicalNot
,
fns
:
[
"check"
,
"splat"
,
"replaceLane"
,
"allTrue"
,
"anyTrue"
,
"and"
,
"or"
,
"xor"
,
"not"
]
,
}
// Each SIMD type has a corresponding Boolean SIMD type, which is returned by
// relational ops.
float64x2
.
boolType
=
bool64x2
.
boolType
=
bool64x2
;
float32x4
.
boolType
=
int32x4
.
boolType
=
uint32x4
.
boolType
=
bool32x4
.
boolType
=
bool32x4
;
int16x8
.
boolType
=
uint16x8
.
boolType
=
bool16x8
.
boolType
=
bool16x8
;
int8x16
.
boolType
=
uint8x16
.
boolType
=
bool8x16
.
boolType
=
bool8x16
;
// SIMD fromTIMD types.
float64x2
.
from
=
[
]
;
float32x4
.
from
=
[
int32x4
,
uint32x4
]
;
int32x4
.
from
=
[
float32x4
,
uint32x4
]
;
int16x8
.
from
=
[
uint16x8
]
;
int8x16
.
from
=
[
uint8x16
]
;
uint32x4
.
from
=
[
float32x4
,
int32x4
]
;
uint16x8
.
from
=
[
int16x8
]
;
uint8x16
.
from
=
[
int8x16
]
;
// SIMD fromTIMDBits types.
float64x2
.
fromBits
=
[
float32x4
,
int32x4
,
int16x8
,
int8x16
,
uint32x4
,
uint16x8
,
uint8x16
]
;
float32x4
.
fromBits
=
[
float64x2
,
int32x4
,
int16x8
,
int8x16
,
uint32x4
,
uint16x8
,
uint8x16
]
;
int32x4
.
fromBits
=
[
float64x2
,
float32x4
,
int16x8
,
int8x16
,
uint32x4
,
uint16x8
,
uint8x16
]
;
int16x8
.
fromBits
=
[
float64x2
,
float32x4
,
int32x4
,
int8x16
,
uint32x4
,
uint16x8
,
uint8x16
]
;
int8x16
.
fromBits
=
[
float64x2
,
float32x4
,
int32x4
,
int16x8
,
uint32x4
,
uint16x8
,
uint8x16
]
;
uint32x4
.
fromBits
=
[
float64x2
,
float32x4
,
int32x4
,
int16x8
,
int8x16
,
uint16x8
,
uint8x16
]
;
uint16x8
.
fromBits
=
[
float64x2
,
float32x4
,
int32x4
,
int16x8
,
int8x16
,
uint32x4
,
uint8x16
]
;
uint8x16
.
fromBits
=
[
float64x2
,
float32x4
,
int32x4
,
int16x8
,
int8x16
,
uint32x4
,
uint16x8
]
;
// SIMD widening types.
uint16x8
.
wideType
=
uint32x4
;
uint8x16
.
wideType
=
uint16x8
;
var
allTypes
=
[
float64x2
,
float32x4
,
int32x4
,
int16x8
,
int8x16
,
uint32x4
,
uint16x8
,
uint8x16
,
bool32x4
,
bool16x8
,
bool8x16
]
;
// XXX Emscripten: Add member functions to Bool64x2 as well.
allTypes
.
push
(
bool64x2
)
;
// XXX Emscripten: Float64x2 value conversion to other types (In two lowest channels. Two highest channels zero).
float64x2
.
from
=
[
int32x4
,
uint32x4
,
float32x4
]
;
// SIMD prototype functions.
var
prototypeFns
=
{
valueOf
:
function
(
type
)
{
return
function
(
)
{
throw
new
TypeError
(
type
.
name
+
" cannot be converted to a number"
)
;
}
}
,
toString
:
function
(
type
)
{
return
function
(
)
{
return
simdToString
(
type
,
this
)
;
}
}
,
toLocaleString
:
function
(
type
)
{
return
function
(
)
{
return
simdToLocaleString
(
type
,
this
)
;
}
}
,
}
;
// SIMD constructor functions.
var
simdFns
=
{
check
:
function
(
type
)
{
return
function
(
a
)
{
if
(
!
(
a
instanceof
type
.
fn
)
)
{
throw
new
TypeError
(
"Argument is not a "
+
type
.
name
+
"."
)
;
}
return
a
;
}
}
,
splat
:
function
(
type
)
{
return
function
(
s
)
{
return
simdSplat
(
type
,
s
)
;
}
}
,
replaceLane
:
function
(
type
)
{
return
function
(
a
,
i
,
s
)
{
return
simdReplaceLane
(
type
,
a
,
i
,
s
)
;
}
}
,
allTrue
:
function
(
type
)
{
return
function
(
a
)
{
return
simdAllTrue
(
type
,
a
)
;
}
}
,
anyTrue
:
function
(
type
)
{
return
function
(
a
)
{
return
simdAnyTrue
(
type
,
a
)
;
}
}
,
and
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdBinaryOp
(
type
,
binaryAnd
,
a
,
b
)
;
}
}
,
or
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdBinaryOp
(
type
,
binaryOr
,
a
,
b
)
;
}
}
,
xor
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdBinaryOp
(
type
,
binaryXor
,
a
,
b
)
;
}
}
,
not
:
function
(
type
)
{
return
function
(
a
)
{
return
simdUnaryOp
(
type
,
type
.
notFn
,
a
)
;
}
}
,
equal
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdRelationalOp
(
type
,
binaryEqual
,
a
,
b
)
;
}
}
,
notEqual
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdRelationalOp
(
type
,
binaryNotEqual
,
a
,
b
)
;
}
}
,
lessThan
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdRelationalOp
(
type
,
binaryLess
,
a
,
b
)
;
}
}
,
lessThanOrEqual
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdRelationalOp
(
type
,
binaryLessEqual
,
a
,
b
)
;
}
}
,
greaterThan
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdRelationalOp
(
type
,
binaryGreater
,
a
,
b
)
;
}
}
,
greaterThanOrEqual
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdRelationalOp
(
type
,
binaryGreaterEqual
,
a
,
b
)
;
}
}
,
add
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdBinaryOp
(
type
,
binaryAdd
,
a
,
b
)
;
}
}
,
sub
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdBinaryOp
(
type
,
binarySub
,
a
,
b
)
;
}
}
,
mul
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdBinaryOp
(
type
,
type
.
mulFn
,
a
,
b
)
;
}
}
,
div
:
function
(
type
)
{
return
function
(
a
,
b
)
{
return
simdBinaryOp
(
type
,
binaryDiv
,
a
,
b
)
;
}
}
,
neg
:
function
(
type
)
{
return
function
(
a
)
{
return
simdUnaryOp
(
type
,
unaryNeg
,
a
)
;
}
}
,
abs
:
function
(
type
)
{
return
function
(
a
)
{
return
simdUnaryOp
(
type
,
Math
.
abs
,
a
)
;
}
}
,
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