From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Fri, 19 Jul 2024 16:37:58 +0400
Subject: Deleted vendor folder

---
 vendor/crc32fast/src/specialized/aarch64.rs | 88 -----------------------------
 1 file changed, 88 deletions(-)
 delete mode 100644 vendor/crc32fast/src/specialized/aarch64.rs

(limited to 'vendor/crc32fast/src/specialized/aarch64.rs')

diff --git a/vendor/crc32fast/src/specialized/aarch64.rs b/vendor/crc32fast/src/specialized/aarch64.rs
deleted file mode 100644
index 49de6b0..0000000
--- a/vendor/crc32fast/src/specialized/aarch64.rs
+++ /dev/null
@@ -1,88 +0,0 @@
-use std::arch::aarch64 as arch;
-
-#[derive(Clone)]
-pub struct State {
-    state: u32,
-}
-
-impl State {
-    pub fn new(state: u32) -> Option<Self> {
-        if std::arch::is_aarch64_feature_detected!("crc") {
-            // SAFETY: The conditions above ensure that all
-            //         required instructions are supported by the CPU.
-            Some(Self { state })
-        } else {
-            None
-        }
-    }
-
-    pub fn update(&mut self, buf: &[u8]) {
-        // SAFETY: The `State::new` constructor ensures that all
-        //         required instructions are supported by the CPU.
-        self.state = unsafe { calculate(self.state, buf) }
-    }
-
-    pub fn finalize(self) -> u32 {
-        self.state
-    }
-
-    pub fn reset(&mut self) {
-        self.state = 0;
-    }
-
-    pub fn combine(&mut self, other: u32, amount: u64) {
-        self.state = ::combine::combine(self.state, other, amount);
-    }
-}
-
-// target_feature is necessary to allow rustc to inline the crc32* wrappers
-#[target_feature(enable = "crc")]
-pub unsafe fn calculate(crc: u32, data: &[u8]) -> u32 {
-    let mut c32 = !crc;
-    let (pre_quad, quads, post_quad) = data.align_to::<u64>();
-
-    c32 = pre_quad.iter().fold(c32, |acc, &b| arch::__crc32b(acc, b));
-
-    // unrolling increases performance by a lot
-    let mut quad_iter = quads.chunks_exact(8);
-    for chunk in &mut quad_iter {
-        c32 = arch::__crc32d(c32, chunk[0]);
-        c32 = arch::__crc32d(c32, chunk[1]);
-        c32 = arch::__crc32d(c32, chunk[2]);
-        c32 = arch::__crc32d(c32, chunk[3]);
-        c32 = arch::__crc32d(c32, chunk[4]);
-        c32 = arch::__crc32d(c32, chunk[5]);
-        c32 = arch::__crc32d(c32, chunk[6]);
-        c32 = arch::__crc32d(c32, chunk[7]);
-    }
-    c32 = quad_iter
-        .remainder()
-        .iter()
-        .fold(c32, |acc, &q| arch::__crc32d(acc, q));
-
-    c32 = post_quad.iter().fold(c32, |acc, &b| arch::__crc32b(acc, b));
-
-    !c32
-}
-
-#[cfg(test)]
-mod test {
-    quickcheck! {
-        fn check_against_baseline(init: u32, chunks: Vec<(Vec<u8>, usize)>) -> bool {
-            let mut baseline = super::super::super::baseline::State::new(init);
-            let mut aarch64 = super::State::new(init).expect("not supported");
-            for (chunk, mut offset) in chunks {
-                // simulate random alignments by offsetting the slice by up to 15 bytes
-                offset &= 0xF;
-                if chunk.len() <= offset {
-                    baseline.update(&chunk);
-                    aarch64.update(&chunk);
-                } else {
-                    baseline.update(&chunk[offset..]);
-                    aarch64.update(&chunk[offset..]);
-                }
-            }
-            aarch64.finalize() == baseline.finalize()
-        }
-    }
-}
-- 
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