src/libcompiler_builtins/src/lib.rs

   1 #![cfg_attr(not(stage0), deny(warnings))]
   2 #![cfg_attr(not(test), no_std)]
   3 #![cfg_attr(feature = "compiler-builtins", compiler_builtins)]
   4 #![crate_name = "compiler_builtins"]
   5 #![crate_type = "rlib"]
   6 #![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk.png",
   7        html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
   8        html_root_url = "https://doc.rust-lang.org/nightly/",
   9        html_playground_url = "https://play.rust-lang.org/",
  10        test(attr(deny(warnings))))]
  11 #![feature(asm)]
  12 #![feature(compiler_builtins)]
  13 #![feature(core_intrinsics)]
  14 #![feature(naked_functions)]
  15 #![feature(staged_api)]
  16 #![feature(i128_type)]
  17 #![feature(repr_simd)]
  18 #![feature(abi_unadjusted)]
  19 #![feature(linkage)]
  20 #![allow(unused_features)]
  21 #![no_builtins]
  22 #![unstable(feature = "compiler_builtins_lib",
  23             reason = "Compiler builtins. Will never become stable.",
  24             issue = "0")]
  25
  26 // We disable #[no_mangle] for tests so that we can verify the test results
  27 // against the native compiler-rt implementations of the builtins.
  28
  29 // NOTE cfg(all(feature = "c", ..)) indicate that compiler-rt provides an arch optimized
  30 // implementation of that intrinsic and we'll prefer to use that
  31
  32 // NOTE(aapcs, aeabi, arm) ARM targets use intrinsics named __aeabi_* instead of the intrinsics
  33 // that follow "x86 naming convention" (e.g. addsf3). Those aeabi intrinsics must adhere to the
  34 // AAPCS calling convention (`extern "aapcs"`) because that's how LLVM will call them.
  35
  36 #[cfg(test)]
  37 extern crate core;
  38
  39 fn abort() -> ! {
  40     unsafe { core::intrinsics::abort() }
  41 }
  42
  43 #[macro_use]
  44 mod macros;
  45
  46 pub mod int;
  47 pub mod float;
  48
  49 pub mod mem;
  50
  51 #[cfg(target_arch = "arm")]
  52 pub mod arm;
  53
  54 #[cfg(all(armv5te, target_os = "linux", target_arch = "arm"))]
  55 pub mod arm_linux;
  56
  57 #[cfg(target_arch = "x86")]
  58 pub mod x86;
  59
  60 #[cfg(target_arch = "x86_64")]
  61 pub mod x86_64;
  62
  63 pub mod probestack;