Function core::arch::x86::_mm_aeskeygenassist_si128

pub unsafe fn _mm_aeskeygenassist_si128(a: __m128i, imm8: i32) -> __m128i

This is supported on x86 and target feature aes only.

Assist in expanding the AES cipher key.

Assist in expanding the AES cipher key by computing steps towards generating a round key for encryption cipher using data from a and an 8-bit round constant imm8.

Intel's documentation