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Q: What are the benefits of using Neon Intrinsics compared to using assembly code?

A: Compilers take advantage of built-in functions called intrinsics, with mostly 1-2-1 mapped assembly instructions. Using intrinsics removes the need to use Assembly code to get the highest performance out of the underlying hardware.

Q: What are some example areas that can be improved by using SIMD architecture?

A: Some examples include video and audio encoding and decoding, 3D graphics, and speech and image processing.

Q: What are the name conventions that Neon intrinsics use to represent various register vectors?

A: To represent various register vectors, Neon intrinsics use the following name convention:

<type><size>x<number of lanes>_t

  • <type> is the data type (int, uint, float, or poly).
  • <size> is the number of bits used for the data type (8, 16, 32, 64).
  • <number of lanes> defines how many lanes.
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