🔬This is a nightly-only experimental API. (

`simd_wasm64`

#90599)Available on

**only.**`target_family="wasm"`

## Expand description

Platform-specific intrinsics for the `wasm`

target family.

See the module documentation for more details.

## Structs

WASM-specific 128-bit wide SIMD vector type.

## Functions

Corresponding intrinsic to wasm’s

`memory.atomic.notify`

instructionCorresponding intrinsic to wasm’s

`memory.atomic.wait32`

instructionCorresponding intrinsic to wasm’s

`memory.atomic.wait64`

instructionf32x4

`simd128`

Materializes a SIMD value from the provided operands.

f32x4_abs

`simd128`

Calculates the absolute value of each lane of a 128-bit vector interpreted
as four 32-bit floating point numbers.

f32x4_add

`simd128`

Lane-wise addition of two 128-bit vectors interpreted as four 32-bit
floating point numbers.

f32x4_ceil

`simd128`

Lane-wise rounding to the nearest integral value not smaller than the input.

f32x4_convert_i32x4

`simd128`

Converts a 128-bit vector interpreted as four 32-bit signed integers into a
128-bit vector of four 32-bit floating point numbers.

f32x4_convert_u32x4

`simd128`

Converts a 128-bit vector interpreted as four 32-bit unsigned integers into a
128-bit vector of four 32-bit floating point numbers.

f32x4_demote_f64x2_zero

`simd128`

Conversion of the two double-precision floating point lanes to two lower
single-precision lanes of the result. The two higher lanes of the result are
initialized to zero. If the conversion result is not representable as a
single-precision floating point number, it is rounded to the nearest-even
representable number.

f32x4_div

`simd128`

Lane-wise division of two 128-bit vectors interpreted as four 32-bit
floating point numbers.

f32x4_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
floating point numbers.

f32x4_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 4 packed f32 numbers.

f32x4_floor

`simd128`

Lane-wise rounding to the nearest integral value not greater than the input.

f32x4_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
floating point numbers.

f32x4_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
floating point numbers.

f32x4_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
floating point numbers.

f32x4_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
floating point numbers.

f32x4_max

`simd128`

Calculates the lane-wise minimum of two 128-bit vectors interpreted
as four 32-bit floating point numbers.

f32x4_min

`simd128`

Calculates the lane-wise minimum of two 128-bit vectors interpreted
as four 32-bit floating point numbers.

f32x4_mul

`simd128`

Lane-wise multiplication of two 128-bit vectors interpreted as four 32-bit
floating point numbers.

f32x4_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
floating point numbers.

f32x4_nearest

`simd128`

Lane-wise rounding to the nearest integral value; if two values are equally
near, rounds to the even one.

f32x4_neg

`simd128`

Negates each lane of a 128-bit vector interpreted as four 32-bit floating
point numbers.

f32x4_pmax

`simd128`

Lane-wise maximum value, defined as

`a < b ? b : a`

f32x4_pmin

`simd128`

Lane-wise minimum value, defined as

`b < a ? b : a`

f32x4_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 4 packed f32 numbers.

f32x4_splat

`simd128`

Creates a vector with identical lanes.

f32x4_sqrt

`simd128`

Calculates the square root of each lane of a 128-bit vector interpreted as
four 32-bit floating point numbers.

f32x4_sub

`simd128`

Lane-wise subtraction of two 128-bit vectors interpreted as four 32-bit
floating point numbers.

f32x4_trunc

`simd128`

Lane-wise rounding to the nearest integral value with the magnitude not
larger than the input.

f64x2

`simd128`

Materializes a SIMD value from the provided operands.

f64x2_abs

`simd128`

Calculates the absolute value of each lane of a 128-bit vector interpreted
as two 64-bit floating point numbers.

f64x2_add

`simd128`

Lane-wise add of two 128-bit vectors interpreted as two 64-bit
floating point numbers.

f64x2_ceil

`simd128`

Lane-wise rounding to the nearest integral value not smaller than the input.

f64x2_convert_low_i32x4

`simd128`

Lane-wise conversion from integer to floating point.

f64x2_convert_low_u32x4

`simd128`

Lane-wise conversion from integer to floating point.

f64x2_div

`simd128`

Lane-wise divide of two 128-bit vectors interpreted as two 64-bit
floating point numbers.

f64x2_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
floating point numbers.

f64x2_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 2 packed f64 numbers.

f64x2_floor

`simd128`

Lane-wise rounding to the nearest integral value not greater than the input.

f64x2_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
floating point numbers.

f64x2_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
floating point numbers.

f64x2_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
floating point numbers.

f64x2_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
floating point numbers.

f64x2_max

`simd128`

Calculates the lane-wise maximum of two 128-bit vectors interpreted
as two 64-bit floating point numbers.

f64x2_min

`simd128`

Calculates the lane-wise minimum of two 128-bit vectors interpreted
as two 64-bit floating point numbers.

f64x2_mul

`simd128`

Lane-wise multiply of two 128-bit vectors interpreted as two 64-bit
floating point numbers.

f64x2_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
floating point numbers.

f64x2_nearest

`simd128`

Lane-wise rounding to the nearest integral value; if two values are equally
near, rounds to the even one.

f64x2_neg

`simd128`

Negates each lane of a 128-bit vector interpreted as two 64-bit floating
point numbers.

f64x2_pmax

`simd128`

Lane-wise maximum value, defined as

`a < b ? b : a`

f64x2_pmin

`simd128`

Lane-wise minimum value, defined as

`b < a ? b : a`

f64x2_promote_low_f32x4

`simd128`

Conversion of the two lower single-precision floating point lanes to the two
double-precision lanes of the result.

f64x2_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 2 packed f64 numbers.

f64x2_splat

`simd128`

Creates a vector with identical lanes.

f64x2_sqrt

`simd128`

Calculates the square root of each lane of a 128-bit vector interpreted as
two 64-bit floating point numbers.

f64x2_sub

`simd128`

Lane-wise subtract of two 128-bit vectors interpreted as two 64-bit
floating point numbers.

f64x2_trunc

`simd128`

Lane-wise rounding to the nearest integral value with the magnitude not
larger than the input.

i8x16

`simd128`

Materializes a SIMD value from the provided operands.

i8x16_abs

`simd128`

Lane-wise wrapping absolute value.

i8x16_add

`simd128`

Adds two 128-bit vectors as if they were two packed sixteen 8-bit integers.

i8x16_add_sat

`simd128`

Adds two 128-bit vectors as if they were two packed sixteen 8-bit signed
integers, saturating on overflow to

`i8::MAX`

.i8x16_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

i8x16_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.i8x16_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
integers.

i8x16_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 16 packed i8 numbers.

i8x16_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
signed integers.

i8x16_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
signed integers.

i8x16_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
signed integers.

i8x16_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
signed integers.

i8x16_max

`simd128`

Compares lane-wise signed integers, and returns the maximum of
each pair.

i8x16_min

`simd128`

Compares lane-wise signed integers, and returns the minimum of
each pair.

i8x16_narrow_i16x8

`simd128`

Converts two input vectors into a smaller lane vector by narrowing each
lane.

i8x16_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
integers.

i8x16_neg

`simd128`

Negates a 128-bit vectors interpreted as sixteen 8-bit signed integers

i8x16_popcnt

`simd128`

Count the number of bits set to one within each lane.

i8x16_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 16 packed i8 numbers.

i8x16_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

i8x16_shr

`simd128`

Shifts each lane to the right by the specified number of bits, sign
extending.

i8x16_shuffle

`simd128`

Returns a new vector with lanes selected from the lanes of the two input
vectors

`$a`

and `$b`

specified in the 16 immediate operands.i8x16_splat

`simd128`

Creates a vector with identical lanes.

i8x16_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed sixteen 8-bit integers.

i8x16_sub_sat

`simd128`

Subtracts two 128-bit vectors as if they were two packed sixteen 8-bit
signed integers, saturating on overflow to

`i8::MIN`

.i8x16_swizzle

`simd128`

Returns a new vector with lanes selected from the lanes of the first input
vector

`a`

specified in the second input vector `s`

.i16x8

`simd128`

Materializes a SIMD value from the provided operands.

i16x8_abs

`simd128`

Lane-wise wrapping absolute value.

i16x8_add

`simd128`

Adds two 128-bit vectors as if they were two packed eight 16-bit integers.

i16x8_add_sat

`simd128`

Adds two 128-bit vectors as if they were two packed eight 16-bit signed
integers, saturating on overflow to

`i16::MAX`

.i16x8_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

i16x8_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.i16x8_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
integers.

i16x8_extadd_pairwise_i8x16

`simd128`

Integer extended pairwise addition producing extended results
(twice wider results than the inputs).

i16x8_extadd_pairwise_u8x16

`simd128`

Integer extended pairwise addition producing extended results
(twice wider results than the inputs).

i16x8_extend_high_i8x16

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, sign extended.

i16x8_extend_high_u8x16

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, zero extended.

i16x8_extend_low_i8x16

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, sign extended.

i16x8_extend_low_u8x16

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, zero extended.

i16x8_extmul_high_i8x16

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i16x8_extmul_high_u8x16

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i16x8_extmul_low_i8x16

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i16x8_extmul_low_u8x16

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i16x8_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 8 packed i16 numbers.

i16x8_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
signed integers.

i16x8_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
signed integers.

i16x8_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
signed integers.

Load eight 8-bit integers and sign extend each one to a 16-bit lane

Load eight 8-bit integers and zero extend each one to a 16-bit lane

i16x8_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
signed integers.

i16x8_max

`simd128`

Compares lane-wise signed integers, and returns the maximum of
each pair.

i16x8_min

`simd128`

Compares lane-wise signed integers, and returns the minimum of
each pair.

i16x8_mul

`simd128`

Multiplies two 128-bit vectors as if they were two packed eight 16-bit
signed integers.

i16x8_narrow_i32x4

`simd128`

Converts two input vectors into a smaller lane vector by narrowing each
lane.

i16x8_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
integers.

i16x8_neg

`simd128`

Negates a 128-bit vectors interpreted as eight 16-bit signed integers

i16x8_q15mulr_sat

`simd128`

Lane-wise saturating rounding multiplication in Q15 format.

i16x8_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 8 packed i16 numbers.

i16x8_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

i16x8_shr

`simd128`

Shifts each lane to the right by the specified number of bits, sign
extending.

i16x8_shuffle

`simd128`

Same as

`i8x16_shuffle`

, except operates as if the inputs were eight
16-bit integers, only taking 8 indices to shuffle.i16x8_splat

`simd128`

Creates a vector with identical lanes.

i16x8_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed eight 16-bit integers.

i16x8_sub_sat

`simd128`

Subtracts two 128-bit vectors as if they were two packed eight 16-bit
signed integers, saturating on overflow to

`i16::MIN`

.i32x4

`simd128`

Materializes a SIMD value from the provided operands.

i32x4_abs

`simd128`

Lane-wise wrapping absolute value.

i32x4_add

`simd128`

Adds two 128-bit vectors as if they were two packed four 32-bit integers.

i32x4_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

i32x4_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.i32x4_dot_i16x8

`simd128`

Lane-wise multiply signed 16-bit integers in the two input vectors and add
adjacent pairs of the full 32-bit results.

i32x4_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
integers.

i32x4_extadd_pairwise_i16x8

`simd128`

Integer extended pairwise addition producing extended results
(twice wider results than the inputs).

i32x4_extadd_pairwise_u16x8

`simd128`

Integer extended pairwise addition producing extended results
(twice wider results than the inputs).

i32x4_extend_high_i16x8

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, sign extended.

i32x4_extend_high_u16x8

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, zero extended.

i32x4_extend_low_i16x8

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, sign extended.

i32x4_extend_low_u16x8

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, zero extended.

i32x4_extmul_high_i16x8

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i32x4_extmul_high_u16x8

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i32x4_extmul_low_i16x8

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i32x4_extmul_low_u16x8

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i32x4_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 4 packed i32 numbers.

i32x4_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
signed integers.

i32x4_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
signed integers.

i32x4_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
signed integers.

Load four 16-bit integers and sign extend each one to a 32-bit lane

Load four 16-bit integers and zero extend each one to a 32-bit lane

i32x4_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
signed integers.

i32x4_max

`simd128`

Compares lane-wise signed integers, and returns the maximum of
each pair.

i32x4_min

`simd128`

Compares lane-wise signed integers, and returns the minimum of
each pair.

i32x4_mul

`simd128`

Multiplies two 128-bit vectors as if they were two packed four 32-bit
signed integers.

i32x4_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
integers.

i32x4_neg

`simd128`

Negates a 128-bit vectors interpreted as four 32-bit signed integers

i32x4_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 4 packed i32 numbers.

i32x4_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

i32x4_shr

`simd128`

Shifts each lane to the right by the specified number of bits, sign
extending.

i32x4_shuffle

`simd128`

Same as

`i8x16_shuffle`

, except operates as if the inputs were four
32-bit integers, only taking 4 indices to shuffle.i32x4_splat

`simd128`

Creates a vector with identical lanes.

i32x4_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed four 32-bit integers.

i32x4_trunc_sat_f32x4

`simd128`

Converts a 128-bit vector interpreted as four 32-bit floating point numbers
into a 128-bit vector of four 32-bit signed integers.

i32x4_trunc_sat_f64x2_zero

`simd128`

Saturating conversion of the two double-precision floating point lanes to
two lower integer lanes using the IEEE

`convertToIntegerTowardZero`

function.i64x2

`simd128`

Materializes a SIMD value from the provided operands.

i64x2_abs

`simd128`

Lane-wise wrapping absolute value.

i64x2_add

`simd128`

Adds two 128-bit vectors as if they were two packed two 64-bit integers.

i64x2_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

i64x2_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.i64x2_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
integers.

i64x2_extend_high_i32x4

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, sign extended.

i64x2_extend_high_u32x4

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, zero extended.

i64x2_extend_low_i32x4

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, sign extended.

i64x2_extend_low_u32x4

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, zero extended.

i64x2_extmul_high_i32x4

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i64x2_extmul_high_u32x4

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i64x2_extmul_low_i32x4

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i64x2_extmul_low_u32x4

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

i64x2_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 2 packed i64 numbers.

i64x2_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
signed integers.

i64x2_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
signed integers.

i64x2_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
signed integers.

Load two 32-bit integers and sign extend each one to a 64-bit lane

Load two 32-bit integers and zero extend each one to a 64-bit lane

i64x2_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
signed integers.

i64x2_mul

`simd128`

Multiplies two 128-bit vectors as if they were two packed two 64-bit integers.

i64x2_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
integers.

i64x2_neg

`simd128`

Negates a 128-bit vectors interpreted as two 64-bit signed integers

i64x2_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 2 packed i64 numbers.

i64x2_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

i64x2_shr

`simd128`

Shifts each lane to the right by the specified number of bits, sign
extending.

i64x2_shuffle

`simd128`

Same as

`i8x16_shuffle`

, except operates as if the inputs were two
64-bit integers, only taking 2 indices to shuffle.i64x2_splat

`simd128`

Creates a vector with identical lanes.

i64x2_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed two 64-bit integers.

Corresponding intrinsic to wasm’s

`memory.grow`

instructionCorresponding intrinsic to wasm’s

`memory.size`

instructionu8x16

`simd128`

Materializes a SIMD value from the provided operands.

u8x16_add

`simd128`

Adds two 128-bit vectors as if they were two packed sixteen 8-bit integers.

u8x16_add_sat

`simd128`

Adds two 128-bit vectors as if they were two packed sixteen 8-bit unsigned
integers, saturating on overflow to

`u8::MAX`

.u8x16_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

u8x16_avgr

`simd128`

Lane-wise rounding average.

u8x16_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.u8x16_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
integers.

u8x16_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 16 packed u8 numbers.

u8x16_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
unsigned integers.

u8x16_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
unsigned integers.

u8x16_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
unsigned integers.

u8x16_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
unsigned integers.

u8x16_max

`simd128`

Compares lane-wise unsigned integers, and returns the maximum of
each pair.

u8x16_min

`simd128`

Compares lane-wise unsigned integers, and returns the minimum of
each pair.

u8x16_narrow_i16x8

`simd128`

Converts two input vectors into a smaller lane vector by narrowing each
lane.

u8x16_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 16 eight-bit
integers.

u8x16_popcnt

`simd128`

Count the number of bits set to one within each lane.

u8x16_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 16 packed u8 numbers.

u8x16_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

u8x16_shr

`simd128`

Shifts each lane to the right by the specified number of bits, shifting in
zeros.

u8x16_shuffle

`simd128`

Returns a new vector with lanes selected from the lanes of the two input
vectors

`$a`

and `$b`

specified in the 16 immediate operands.u8x16_splat

`simd128`

Creates a vector with identical lanes.

u8x16_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed sixteen 8-bit integers.

u8x16_sub_sat

`simd128`

Subtracts two 128-bit vectors as if they were two packed sixteen 8-bit
unsigned integers, saturating on overflow to 0.

u8x16_swizzle

`simd128`

Returns a new vector with lanes selected from the lanes of the first input
vector

`a`

specified in the second input vector `s`

.u16x8

`simd128`

Materializes a SIMD value from the provided operands.

u16x8_add

`simd128`

Adds two 128-bit vectors as if they were two packed eight 16-bit integers.

u16x8_add_sat

`simd128`

Adds two 128-bit vectors as if they were two packed eight 16-bit unsigned
integers, saturating on overflow to

`u16::MAX`

.u16x8_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

u16x8_avgr

`simd128`

Lane-wise rounding average.

u16x8_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.u16x8_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
integers.

u16x8_extadd_pairwise_u8x16

`simd128`

Integer extended pairwise addition producing extended results
(twice wider results than the inputs).

u16x8_extend_high_u8x16

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, zero extended.

u16x8_extend_low_u8x16

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, zero extended.

u16x8_extmul_high_u8x16

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

u16x8_extmul_low_u8x16

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

u16x8_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 8 packed u16 numbers.

u16x8_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
unsigned integers.

u16x8_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
unsigned integers.

u16x8_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
unsigned integers.

Load eight 8-bit integers and zero extend each one to a 16-bit lane

u16x8_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
unsigned integers.

u16x8_max

`simd128`

Compares lane-wise unsigned integers, and returns the maximum of
each pair.

u16x8_min

`simd128`

Compares lane-wise unsigned integers, and returns the minimum of
each pair.

u16x8_mul

`simd128`

Multiplies two 128-bit vectors as if they were two packed eight 16-bit
signed integers.

u16x8_narrow_i32x4

`simd128`

Converts two input vectors into a smaller lane vector by narrowing each
lane.

u16x8_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 8 sixteen-bit
integers.

u16x8_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 8 packed u16 numbers.

u16x8_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

u16x8_shr

`simd128`

Shifts each lane to the right by the specified number of bits, shifting in
zeros.

u16x8_shuffle

`simd128`

Same as

`i8x16_shuffle`

, except operates as if the inputs were eight
16-bit integers, only taking 8 indices to shuffle.u16x8_splat

`simd128`

Creates a vector with identical lanes.

u16x8_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed eight 16-bit integers.

u16x8_sub_sat

`simd128`

Subtracts two 128-bit vectors as if they were two packed eight 16-bit
unsigned integers, saturating on overflow to 0.

u32x4

`simd128`

Materializes a SIMD value from the provided operands.

u32x4_add

`simd128`

Adds two 128-bit vectors as if they were two packed four 32-bit integers.

u32x4_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

u32x4_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.u32x4_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
integers.

u32x4_extadd_pairwise_u16x8

`simd128`

Integer extended pairwise addition producing extended results
(twice wider results than the inputs).

u32x4_extend_high_u16x8

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, zero extended.

u32x4_extend_low_u16x8

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, zero extended.

u32x4_extmul_high_u16x8

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

u32x4_extmul_low_u16x8

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

u32x4_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 4 packed u32 numbers.

u32x4_ge

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
unsigned integers.

u32x4_gt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
unsigned integers.

u32x4_le

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
unsigned integers.

Load four 16-bit integers and zero extend each one to a 32-bit lane

u32x4_lt

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
unsigned integers.

u32x4_max

`simd128`

Compares lane-wise unsigned integers, and returns the maximum of
each pair.

u32x4_min

`simd128`

Compares lane-wise unsigned integers, and returns the minimum of
each pair.

u32x4_mul

`simd128`

Multiplies two 128-bit vectors as if they were two packed four 32-bit
signed integers.

u32x4_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 4 thirty-two-bit
integers.

u32x4_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 4 packed u32 numbers.

u32x4_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

u32x4_shr

`simd128`

Shifts each lane to the right by the specified number of bits, shifting in
zeros.

u32x4_shuffle

`simd128`

Same as

`i8x16_shuffle`

, except operates as if the inputs were four
32-bit integers, only taking 4 indices to shuffle.u32x4_splat

`simd128`

Creates a vector with identical lanes.

u32x4_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed four 32-bit integers.

u32x4_trunc_sat_f32x4

`simd128`

Converts a 128-bit vector interpreted as four 32-bit floating point numbers
into a 128-bit vector of four 32-bit unsigned integers.

u32x4_trunc_sat_f64x2_zero

`simd128`

Saturating conversion of the two double-precision floating point lanes to
two lower integer lanes using the IEEE

`convertToIntegerTowardZero`

function.u64x2

`simd128`

Materializes a SIMD value from the provided operands.

u64x2_add

`simd128`

Adds two 128-bit vectors as if they were two packed two 64-bit integers.

u64x2_all_true

`simd128`

Returns true if all lanes are non-zero, false otherwise.

u64x2_bitmask

`simd128`

Extracts the high bit for each lane in

`a`

and produce a scalar mask with
all bits concatenated.u64x2_eq

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
integers.

u64x2_extend_high_u32x4

`simd128`

Converts high half of the smaller lane vector to a larger lane
vector, zero extended.

u64x2_extend_low_u32x4

`simd128`

Converts low half of the smaller lane vector to a larger lane
vector, zero extended.

u64x2_extmul_high_u32x4

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

u64x2_extmul_low_u32x4

`simd128`

Lane-wise integer extended multiplication producing twice wider result than
the inputs.

u64x2_extract_lane

`simd128`

Extracts a lane from a 128-bit vector interpreted as 2 packed u64 numbers.

Load two 32-bit integers and zero extend each one to a 64-bit lane

u64x2_mul

`simd128`

Multiplies two 128-bit vectors as if they were two packed two 64-bit integers.

u64x2_ne

`simd128`

Compares two 128-bit vectors as if they were two vectors of 2 sixty-four-bit
integers.

u64x2_replace_lane

`simd128`

Replaces a lane from a 128-bit vector interpreted as 2 packed u64 numbers.

u64x2_shl

`simd128`

Shifts each lane to the left by the specified number of bits.

u64x2_shr

`simd128`

Shifts each lane to the right by the specified number of bits, shifting in
zeros.

u64x2_shuffle

`simd128`

Same as

`i8x16_shuffle`

, except operates as if the inputs were two
64-bit integers, only taking 2 indices to shuffle.u64x2_splat

`simd128`

Creates a vector with identical lanes.

u64x2_sub

`simd128`

Subtracts two 128-bit vectors as if they were two packed two 64-bit integers.

Generates the

`unreachable`

instruction, which causes an unconditional trap.v128_and

`simd128`

Performs a bitwise and of the two input 128-bit vectors, returning the
resulting vector.

v128_andnot

`simd128`

Bitwise AND of bits of

`a`

and the logical inverse of bits of `b`

.v128_any_true

`simd128`

Returns

`true`

if any bit in `a`

is set, or `false`

otherwise.v128_bitselect

`simd128`

Use the bitmask in

`c`

to select bits from `v1`

when 1 and `v2`

when 0.Loads a

`v128`

vector from the given heap address.Loads an 8-bit value from

`m`

and sets lane `L`

of `v`

to that value.Load a single element and splat to all lanes of a v128 vector.

Loads a 16-bit value from

`m`

and sets lane `L`

of `v`

to that value.Load a single element and splat to all lanes of a v128 vector.

Loads a 32-bit value from

`m`

and sets lane `L`

of `v`

to that value.Load a single element and splat to all lanes of a v128 vector.

Load a 32-bit element into the low bits of the vector and sets all other
bits to zero.

Loads a 64-bit value from

`m`

and sets lane `L`

of `v`

to that value.Load a single element and splat to all lanes of a v128 vector.

Load a 64-bit element into the low bits of the vector and sets all other
bits to zero.

v128_not

`simd128`

Flips each bit of the 128-bit input vector.

v128_or

`simd128`

Performs a bitwise or of the two input 128-bit vectors, returning the
resulting vector.

Stores a

`v128`

vector to the given heap address.Stores the 8-bit value from lane

`L`

of `v`

into `m`

Stores the 16-bit value from lane

`L`

of `v`

into `m`

Stores the 32-bit value from lane

`L`

of `v`

into `m`

Stores the 64-bit value from lane

`L`

of `v`

into `m`

v128_xor

`simd128`

Performs a bitwise xor of the two input 128-bit vectors, returning the
resulting vector.