src/stdsimd/crates/core_arch/src/arm/mod.rs

   1 //! ARM intrinsics.
   2 //!
   3 //! The reference for NEON is [ARM's NEON Intrinsics Reference][arm_ref]. The
   4 //! [ARM's NEON Intrinsics Online Database][arm_dat] is also useful.
   5 //!
   6 //! [arm_ref]: http://infocenter.arm.com/help/topic/com.arm.doc.ihi0073a/IHI0073A_arm_neon_intrinsics_ref.pdf
   7 //! [arm_dat]: https://developer.arm.com/technologies/neon/intrinsics
   8 #![allow(non_camel_case_types)]
   9
  10 mod armclang;
  11
  12 pub use self::armclang::*;
  13
  14 #[cfg(any(target_feature = "mclass", dox))]
  15 mod cmsis;
  16 #[cfg(any(target_feature = "mclass", dox))]
  17 pub use self::cmsis::*;
  18
  19 mod v6;
  20 pub use self::v6::*;
  21
  22 #[cfg(any(target_arch = "aarch64", target_feature = "v7"))]
  23 mod v7;
  24 #[cfg(any(target_arch = "aarch64", target_feature = "v7"))]
  25 pub use self::v7::*;
  26
  27 #[cfg(any(all(target_feature = "v7", not(target_feature = "mclass")), dox))]
  28 mod dsp;
  29 #[cfg(any(all(target_feature = "v7", not(target_feature = "mclass")), dox))]
  30 pub use self::dsp::*;
  31
  32 // NEON is supported on AArch64, and on ARM when built with the v7 and neon
  33 // features. Building ARM without neon produces incorrect codegen.
  34 #[cfg(any(
  35     target_arch = "aarch64",
  36     all(target_feature = "v7", target_feature = "neon"),
  37     dox
  38 ))]
  39 mod neon;
  40 #[cfg(any(
  41     target_arch = "aarch64",
  42     all(target_feature = "v7", target_feature = "neon"),
  43     dox
  44 ))]
  45 pub use self::neon::*;
  46
  47 #[cfg(test)]
  48 use stdsimd_test::assert_instr;
  49
  50 /// Generates the trap instruction `UDF`
  51 #[cfg(target_arch = "arm")]
  52 #[cfg_attr(test, assert_instr(udf))]
  53 #[inline]
  54 pub unsafe fn udf() -> ! {
  55     ::intrinsics::abort()
  56 }