Advanced Vector Extensions 2
Advanced Vector Extensions 2 (AVX2), also known as Haswell New Instructions, is an expansion of the AVX instruction set to be first introduced in Intel's Haswell microarchitecture. AVX2 makes the following additions:
- Expansion of most integer AVX instructions to 256 bits
- 3-operand general-purpose bit manipulation and multiply
- Gather support, enabling vector elements to be loaded from non-contiguous memory locations
- DWORD- and QWORD-granularity any-to-any permutes
- Vector shifts
- 3-operand fused multiply-accumulate support
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