1 files changed, 18 insertions, 0 deletions
diff --git a/vendor/sha1/src/compress/aarch64.rs b/vendor/sha1/src/compress/aarch64.rs
new file mode 100644
index 000000000..5952d1f62
--- /dev/null
+++ b/vendor/sha1/src/compress/aarch64.rs
@@ -0,0 +1,18 @@
+//! SHA-1 `aarch64` backend.
+
+// Per rustc target feature docs for `aarch64-unknown-linux-gnu` and
+// `aarch64-apple-darwin` platforms, the `sha2` target feature enables
+// SHA-1 as well:
+//
+// > Enable SHA1 and SHA256 support.
+cpufeatures::new!(sha1_hwcap, "sha2");
+
+pub fn compress(state: &mut [u32; 5], blocks: &[[u8; 64]]) {
+    // TODO: Replace with https://github.com/rust-lang/rfcs/pull/2725
+    // after stabilization
+    if sha1_hwcap::get() {
+        sha1_asm::compress(state, blocks);
+    } else {
+        super::soft::compress(state, blocks);
+    }
+}