[x86] implement xsave intrinsics

Author: gnzlbg

src/lib.rs

@@ -121,7 +121,7 @@
 #![feature(const_fn, link_llvm_intrinsics, platform_intrinsics, repr_simd,
            simd_ffi, target_feature, cfg_target_feature, i128_type, asm,
            const_atomic_usize_new, stmt_expr_attributes)]
-#![cfg_attr(test, feature(proc_macro, test))]
+#![cfg_attr(test, feature(proc_macro, test, repr_align, attr_literals))]
 #![cfg_attr(feature = "cargo-clippy",
             allow(inline_always, too_many_arguments, cast_sign_loss,
                   cast_lossless, cast_possible_wrap,

src/x86/mod.rs

@@ -1,5 +1,7 @@
 //! `x86` and `x86_64` intrinsics.
 
+pub use self::xsave::*;
+
 pub use self::sse::*;
 pub use self::sse2::*;
 pub use self::sse3::*;
@@ -28,6 +30,8 @@ mod macros;
 #[macro_use]
 mod runtime;
 
+mod xsave;
+
 mod sse;
 mod sse2;
 mod sse3;