# Function core::arch::x86_64::_mm_sha1rnds4_epu32
1.27.0[−][src]

    pub unsafe fn _mm_sha1rnds4_epu32<const FUNC: i32>(
        a: __m128i,
        b: __m128i
    ) -> __m128i

This is supported on x86-64 and target feature `sha` only.
Expand description

Performs four rounds of SHA1 operation using an initial SHA1 state (A,B,C,D) from `a` and some pre-computed sum of the next 4 round message values (unsigned 32-bit integers), and state variable E from `b`, and return the updated SHA1 state (A,B,C,D). `FUNC` contains the logic functions and round constants.

Intel’s documentation