#![allow(clippy::many_single_char_names, clippy::unreadable_literal)]

use crate::consts::RC;

use core::convert::TryInto;

#[inline(always)]

fn op_f(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 {

    ((x & y) | (!x & z))

        .wrapping_add(w)

        .wrapping_add(m)

        .wrapping_add(c)

        .rotate_left(s)

        .wrapping_add(x)

}

#[inline(always)]

fn op_g(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 {

    ((x & z) | (y & !z))

        .wrapping_add(w)

        .wrapping_add(m)

        .wrapping_add(c)

        .rotate_left(s)

        .wrapping_add(x)

}

#[inline(always)]

fn op_h(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 {

    (x ^ y ^ z)

        .wrapping_add(w)

        .wrapping_add(m)

        .wrapping_add(c)

        .rotate_left(s)

        .wrapping_add(x)

}

#[inline(always)]

fn op_i(w: u32, x: u32, y: u32, z: u32, m: u32, c: u32, s: u32) -> u32 {

    (y ^ (x | !z))

        .wrapping_add(w)

        .wrapping_add(m)

        .wrapping_add(c)

        .rotate_left(s)

        .wrapping_add(x)

}

#[inline]

pub fn compress_block(state: &mut [u32; 4], input: &[u8; 64]) {

    let mut a = state[0];

    let mut b = state[1];

    let mut c = state[2];

    let mut d = state[3];

    let mut data = [0u32; 16];

    for (o, chunk) in data.iter_mut().zip(input.chunks_exact(4)) {

        *o = u32::from_le_bytes(chunk.try_into().unwrap());

    }

    // round 1

    a = op_f(a, b, c, d, data[0], RC[0], 7);

    d = op_f(d, a, b, c, data[1], RC[1], 12);

    c = op_f(c, d, a, b, data[2], RC[2], 17);

    b = op_f(b, c, d, a, data[3], RC[3], 22);

    a = op_f(a, b, c, d, data[4], RC[4], 7);

    d = op_f(d, a, b, c, data[5], RC[5], 12);

    c = op_f(c, d, a, b, data[6], RC[6], 17);

    b = op_f(b, c, d, a, data[7], RC[7], 22);

    a = op_f(a, b, c, d, data[8], RC[8], 7);

    d = op_f(d, a, b, c, data[9], RC[9], 12);

    c = op_f(c, d, a, b, data[10], RC[10], 17);

    b = op_f(b, c, d, a, data[11], RC[11], 22);

    a = op_f(a, b, c, d, data[12], RC[12], 7);

    d = op_f(d, a, b, c, data[13], RC[13], 12);

    c = op_f(c, d, a, b, data[14], RC[14], 17);

    b = op_f(b, c, d, a, data[15], RC[15], 22);

    // round 2

    a = op_g(a, b, c, d, data[1], RC[16], 5);

    d = op_g(d, a, b, c, data[6], RC[17], 9);

    c = op_g(c, d, a, b, data[11], RC[18], 14);

    b = op_g(b, c, d, a, data[0], RC[19], 20);

    a = op_g(a, b, c, d, data[5], RC[20], 5);

    d = op_g(d, a, b, c, data[10], RC[21], 9);

    c = op_g(c, d, a, b, data[15], RC[22], 14);

    b = op_g(b, c, d, a, data[4], RC[23], 20);

    a = op_g(a, b, c, d, data[9], RC[24], 5);

    d = op_g(d, a, b, c, data[14], RC[25], 9);

    c = op_g(c, d, a, b, data[3], RC[26], 14);

    b = op_g(b, c, d, a, data[8], RC[27], 20);

    a = op_g(a, b, c, d, data[13], RC[28], 5);

    d = op_g(d, a, b, c, data[2], RC[29], 9);

    c = op_g(c, d, a, b, data[7], RC[30], 14);

    b = op_g(b, c, d, a, data[12], RC[31], 20);

    // round 3

    a = op_h(a, b, c, d, data[5], RC[32], 4);

    d = op_h(d, a, b, c, data[8], RC[33], 11);

    c = op_h(c, d, a, b, data[11], RC[34], 16);

    b = op_h(b, c, d, a, data[14], RC[35], 23);

    a = op_h(a, b, c, d, data[1], RC[36], 4);

    d = op_h(d, a, b, c, data[4], RC[37], 11);

    c = op_h(c, d, a, b, data[7], RC[38], 16);

    b = op_h(b, c, d, a, data[10], RC[39], 23);

    a = op_h(a, b, c, d, data[13], RC[40], 4);

    d = op_h(d, a, b, c, data[0], RC[41], 11);

    c = op_h(c, d, a, b, data[3], RC[42], 16);

    b = op_h(b, c, d, a, data[6], RC[43], 23);

    a = op_h(a, b, c, d, data[9], RC[44], 4);

    d = op_h(d, a, b, c, data[12], RC[45], 11);

    c = op_h(c, d, a, b, data[15], RC[46], 16);

    b = op_h(b, c, d, a, data[2], RC[47], 23);

    // round 4

    a = op_i(a, b, c, d, data[0], RC[48], 6);

    d = op_i(d, a, b, c, data[7], RC[49], 10);

    c = op_i(c, d, a, b, data[14], RC[50], 15);

    b = op_i(b, c, d, a, data[5], RC[51], 21);

    a = op_i(a, b, c, d, data[12], RC[52], 6);

    d = op_i(d, a, b, c, data[3], RC[53], 10);

    c = op_i(c, d, a, b, data[10], RC[54], 15);

    b = op_i(b, c, d, a, data[1], RC[55], 21);

    a = op_i(a, b, c, d, data[8], RC[56], 6);

    d = op_i(d, a, b, c, data[15], RC[57], 10);

    c = op_i(c, d, a, b, data[6], RC[58], 15);

    b = op_i(b, c, d, a, data[13], RC[59], 21);

    a = op_i(a, b, c, d, data[4], RC[60], 6);

    d = op_i(d, a, b, c, data[11], RC[61], 10);

    c = op_i(c, d, a, b, data[2], RC[62], 15);

    b = op_i(b, c, d, a, data[9], RC[63], 21);

    state[0] = state[0].wrapping_add(a);

    state[1] = state[1].wrapping_add(b);

    state[2] = state[2].wrapping_add(c);

    state[3] = state[3].wrapping_add(d);

}

Unexecuted instantiation: md5::compress::soft::compress_block

Unexecuted instantiation: md5::compress::soft::compress_block

#[inline]

pub fn compress(state: &mut [u32; 4], blocks: &[[u8; 64]]) {

    for block in blocks {

        compress_block(state, block)

    }

}

Unexecuted instantiation: md5::compress::soft::compress

Unexecuted instantiation: md5::compress::soft::compress