Remove asm for crc32cb instruction (#56)

zowens · Feb 8, 2024 · 6b46ba3 · 6b46ba3
1 parent 4bd4615
commit 6b46ba3
Showing 1 changed file with 3 additions and 13 deletions.
diff --git a/src/hw_aarch64.rs b/src/hw_aarch64.rs
@@ -1,8 +1,6 @@
 use crate::hw_tables;
 use crate::util::{self, U64Le};
-
 use std::arch::aarch64 as simd;
-use std::arch::asm;
 
 pub unsafe fn crc32c(crci: u32, buffer: &[u8]) -> u32 {
     let mut crc0 = !crci;
@@ -46,18 +44,10 @@ pub unsafe fn crc32c(crci: u32, buffer: &[u8]) -> u32 {
 
 #[inline]
 #[target_feature(enable = "crc")]
-pub unsafe fn __crc32b(mut crc: u32, data: u8) -> u32 {
-    asm!(
-        "crc32cb {0:w}, {0:w}, {1:w}",
-        inout(reg) crc,
-        in(reg) data,
-    );
-    crc
-}
-
-#[inline]
 unsafe fn crc_u8(crc: u32, buffer: &[u8]) -> u32 {
-    buffer.iter().fold(crc, |crc, &next| __crc32b(crc, next))
+    buffer
+        .iter()
+        .fold(crc, |crc, &next| simd::__crc32cb(crc, next))
 }
 
 #[inline(always)]