pub fn _mm_sm3rnds2_epi32(
a: __m128i,
b: __m128i,
c: __m128i,
const IMM8: i32,
) -> __m128i🔬This is a nightly-only experimental API. (
sha512_sm_x86 #126624)Available on (x86 or x86-64) and target feature
sm3,avx and x86 only.Expand description
The intrinsic performs two rounds of SM3 operation using initial SM3 state (C, D, G, H)
from a, an initial SM3 states (A, B, E, F) from b and a pre-computed words from the
c. a with initial SM3 state of (C, D, G, H) assumes input of non-rotated left variables
from previous state. The updated SM3 state (A, B, E, F) is written to a. The imm8
should contain the even round number for the first of the two rounds computed by this instruction.
The computation masks the imm8 value by ANDing it with 0x3E so that only even round numbers
from 0 through 62 are used for this operation. The calculated results are stored in dst.