[aarch64] refactor AArch64 intrinsics into its own architecture module (#162)

library/stdarch/src/aarch64/mod.rs

@@ -0,0 +1,17 @@
+//! AArch64 intrinsics.
+//!
+//! The reference for NEON is [ARM's NEON Intrinsics Reference][arm_ref]. The
+//! [ARM's NEON Intrinsics Online Database][arm_dat] is also useful.
+//!
+//! [arm_ref]:
+//! http://infocenter.arm.com/help/topic/com.arm.doc.
+//! ihi0073a/IHI0073A_arm_neon_intrinsics_ref.pdf
+//! [arm_dat]: https://developer.arm.com/technologies/neon/intrinsics
+
+mod v8;
+pub use self::v8::*;
+
+#[cfg(target_feature = "neon")]
+mod neon;
+#[cfg(target_feature = "neon")]
+pub use self::neon::*;

library/stdarch/src/aarch64/v8.rs

@@ -5,8 +5,6 @@
 //! [armv8]: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.
 //! ddi0487a.k_10775/index.html
 
-pub use super::v7::*;
-
 #[cfg(test)]
 use stdsimd_test::assert_instr;
 
@@ -59,7 +57,7 @@ pub unsafe fn _cls_u64(x: u64) -> u64 {
 
 #[cfg(test)]
 mod tests {
-    use arm::v8;
+    use aarch64::v8;
 
     #[test]
     fn _rev_u64() {

library/stdarch/src/arm/mod.rs

@@ -8,23 +8,13 @@
 //! ihi0073a/IHI0073A_arm_neon_intrinsics_ref.pdf
 //! [arm_dat]: https://developer.arm.com/technologies/neon/intrinsics
 
-pub use self::v6::*;
-pub use self::v7::*;
-#[cfg(target_arch = "aarch64")]
-pub use self::v8::*;
-
-#[cfg(target_feature = "neon")]
-pub use self::v7_neon::*;
-
-#[cfg(all(target_arch = "aarch64", target_feature = "neon"))]
-pub use self::v8_neon::*;
-
 mod v6;
-mod v7;
-#[cfg(target_feature = "neon")]
-mod v7_neon;
+pub use self::v6::*;
 
-#[cfg(target_arch = "aarch64")]
-mod v8;
-#[cfg(all(target_arch = "aarch64", target_feature = "neon"))]
-mod v8_neon;
+mod v7;
+pub use self::v7::*;
+
+#[cfg(target_feature = "neon")]
+mod neon;
+#[cfg(target_feature = "neon")]
+pub use self::neon::*;

library/stdarch/src/lib.rs

@@ -144,6 +144,9 @@ pub mod vendor {
 
     #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
     pub use arm::*;
+
+    #[cfg(target_arch = "aarch64")]
+    pub use aarch64::*;
 }
 
 #[macro_use]
@@ -160,3 +163,5 @@ mod x86;
 
 #[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
 mod arm;
+#[cfg(target_arch = "aarch64")]
+mod aarch64;