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# 64-Bit Signed Integer Vectors

Perform operations on vectors that contain signed 64-bit integer elements.

## Topics

### Vector Data Types

[`typealias simd_long1`](/documentation/simd/simd_long1)

A vector of one 64-bit signed integer element.

[`typealias simd_long2`](/documentation/simd/simd_long2)

A vector of two 64-bit signed integer elements.

[`typealias simd_long3`](/documentation/simd/simd_long3)

A vector of three 64-bit signed integer elements.

[`typealias simd_long4`](/documentation/simd/simd_long4)

A vector of four 64-bit signed integer elements.

[`typealias simd_long8`](/documentation/simd/simd_long8)

A vector of eight 64-bit signed integer elements.

### Packed Vector Data Types

[`typealias simd_packed_long2`](/documentation/simd/simd_packed_long2)

A packed vector of two 64-bit signed integer elements.

[`typealias simd_packed_long4`](/documentation/simd/simd_packed_long4)

A packed vector of four 64-bit signed integer elements.

[`typealias simd_packed_long8`](/documentation/simd/simd_packed_long8)

A packed vector of eight 64-bit signed integer elements.


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