1 files changed, 0 insertions, 214 deletions
diff --git a/vendor/simd-adler32/src/imp/avx2.rs b/vendor/simd-adler32/src/imp/avx2.rs
deleted file mode 100644
index c16cc99..0000000
--- a/vendor/simd-adler32/src/imp/avx2.rs
+++ /dev/null
@@ -1,214 +0,0 @@
-use super::Adler32Imp;
-
-/// Resolves update implementation if CPU supports avx2 instructions.
-pub fn get_imp() -> Option<Adler32Imp> {
-  get_imp_inner()
-}
-
-#[inline]
-#[cfg(all(feature = "std", any(target_arch = "x86", target_arch = "x86_64")))]
-fn get_imp_inner() -> Option<Adler32Imp> {
-  if std::is_x86_feature_detected!("avx2") {
-    Some(imp::update)
-  } else {
-    None
-  }
-}
-
-#[inline]
-#[cfg(all(
-  target_feature = "avx2",
-  not(all(feature = "std", any(target_arch = "x86", target_arch = "x86_64")))
-))]
-fn get_imp_inner() -> Option<Adler32Imp> {
-  Some(imp::update)
-}
-
-#[inline]
-#[cfg(all(
-  not(target_feature = "avx2"),
-  not(all(feature = "std", any(target_arch = "x86", target_arch = "x86_64")))
-))]
-fn get_imp_inner() -> Option<Adler32Imp> {
-  None
-}
-
-#[cfg(all(
-  any(target_arch = "x86", target_arch = "x86_64"),
-  any(feature = "std", target_feature = "avx2")
-))]
-mod imp {
-  const MOD: u32 = 65521;
-  const NMAX: usize = 5552;
-  const BLOCK_SIZE: usize = 32;
-  const CHUNK_SIZE: usize = NMAX / BLOCK_SIZE * BLOCK_SIZE;
-
-  #[cfg(target_arch = "x86")]
-  use core::arch::x86::*;
-  #[cfg(target_arch = "x86_64")]
-  use core::arch::x86_64::*;
-
-  pub fn update(a: u16, b: u16, data: &[u8]) -> (u16, u16) {
-    unsafe { update_imp(a, b, data) }
-  }
-
-  #[inline]
-  #[target_feature(enable = "avx2")]
-  unsafe fn update_imp(a: u16, b: u16, data: &[u8]) -> (u16, u16) {
-    let mut a = a as u32;
-    let mut b = b as u32;
-
-    let chunks = data.chunks_exact(CHUNK_SIZE);
-    let remainder = chunks.remainder();
-    for chunk in chunks {
-      update_chunk_block(&mut a, &mut b, chunk);
-    }
-
-    update_block(&mut a, &mut b, remainder);
-
-    (a as u16, b as u16)
-  }
-
-  #[inline]
-  unsafe fn update_chunk_block(a: &mut u32, b: &mut u32, chunk: &[u8]) {
-    debug_assert_eq!(
-      chunk.len(),
-      CHUNK_SIZE,
-      "Unexpected chunk size (expected {}, got {})",
-      CHUNK_SIZE,
-      chunk.len()
-    );
-
-    reduce_add_blocks(a, b, chunk);
-
-    *a %= MOD;
-    *b %= MOD;
-  }
-
-  #[inline]
-  unsafe fn update_block(a: &mut u32, b: &mut u32, chunk: &[u8]) {
-    debug_assert!(
-      chunk.len() <= CHUNK_SIZE,
-      "Unexpected chunk size (expected <= {}, got {})",
-      CHUNK_SIZE,
-      chunk.len()
-    );
-
-    for byte in reduce_add_blocks(a, b, chunk) {
-      *a += *byte as u32;
-      *b += *a;
-    }
-
-    *a %= MOD;
-    *b %= MOD;
-  }
-
-  #[inline(always)]
-  unsafe fn reduce_add_blocks<'a>(a: &mut u32, b: &mut u32, chunk: &'a [u8]) -> &'a [u8] {
-    if chunk.len() < BLOCK_SIZE {
-      return chunk;
-    }
-
-    let blocks = chunk.chunks_exact(BLOCK_SIZE);
-    let blocks_remainder = blocks.remainder();
-
-    let one_v = _mm256_set1_epi16(1);
-    let zero_v = _mm256_setzero_si256();
-    let weights = get_weights();
-
-    let mut p_v = _mm256_set_epi32(0, 0, 0, 0, 0, 0, 0, (*a * blocks.len() as u32) as _);
-    let mut a_v = _mm256_setzero_si256();
-    let mut b_v = _mm256_set_epi32(0, 0, 0, 0, 0, 0, 0, *b as _);
-
-    for block in blocks {
-      let block_ptr = block.as_ptr() as *const _;
-      let block = _mm256_loadu_si256(block_ptr);
-
-      p_v = _mm256_add_epi32(p_v, a_v);
-
-      a_v = _mm256_add_epi32(a_v, _mm256_sad_epu8(block, zero_v));
-      let mad = _mm256_maddubs_epi16(block, weights);
-      b_v = _mm256_add_epi32(b_v, _mm256_madd_epi16(mad, one_v));
-    }
-
-    b_v = _mm256_add_epi32(b_v, _mm256_slli_epi32(p_v, 5));
-
-    *a += reduce_add(a_v);
-    *b = reduce_add(b_v);
-
-    blocks_remainder
-  }
-
-  #[inline(always)]
-  unsafe fn reduce_add(v: __m256i) -> u32 {
-    let sum = _mm_add_epi32(_mm256_castsi256_si128(v), _mm256_extracti128_si256(v, 1));
-    let hi = _mm_unpackhi_epi64(sum, sum);
-
-    let sum = _mm_add_epi32(hi, sum);
-    let hi = _mm_shuffle_epi32(sum, crate::imp::_MM_SHUFFLE(2, 3, 0, 1));
-
-    let sum = _mm_add_epi32(sum, hi);
-
-    _mm_cvtsi128_si32(sum) as _
-  }
-
-  #[inline(always)]
-  unsafe fn get_weights() -> __m256i {
-    _mm256_set_epi8(
-      1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23,
-      24, 25, 26, 27, 28, 29, 30, 31, 32,
-    )
-  }
-}
-
-#[cfg(test)]
-mod tests {
-  use rand::Rng;
-
-  #[test]
-  fn zeroes() {
-    assert_sum_eq(&[]);
-    assert_sum_eq(&[0]);
-    assert_sum_eq(&[0, 0]);
-    assert_sum_eq(&[0; 100]);
-    assert_sum_eq(&[0; 1024]);
-    assert_sum_eq(&[0; 1024 * 1024]);
-  }
-
-  #[test]
-  fn ones() {
-    assert_sum_eq(&[]);
-    assert_sum_eq(&[1]);
-    assert_sum_eq(&[1, 1]);
-    assert_sum_eq(&[1; 100]);
-    assert_sum_eq(&[1; 1024]);
-    assert_sum_eq(&[1; 1024 * 1024]);
-  }
-
-  #[test]
-  fn random() {
-    let mut random = [0; 1024 * 1024];
-    rand::thread_rng().fill(&mut random[..]);
-
-    assert_sum_eq(&random[..1]);
-    assert_sum_eq(&random[..100]);
-    assert_sum_eq(&random[..1024]);
-    assert_sum_eq(&random[..1024 * 1024]);
-  }
-
-  /// Example calculation from https://en.wikipedia.org/wiki/Adler-32.
-  #[test]
-  fn wiki() {
-    assert_sum_eq(b"Wikipedia");
-  }
-
-  fn assert_sum_eq(data: &[u8]) {
-    if let Some(update) = super::get_imp() {
-      let (a, b) = update(1, 0, data);
-      let left = u32::from(b) << 16 | u32::from(a);
-      let right = adler::adler32_slice(data);
-
-      assert_eq!(left, right, "len({})", data.len());
-    }
-  }
-}