compiler-builtins-zynq/src/lib.rs

119 lines
2.8 KiB
Rust

#![cfg_attr(not(stage0), deny(warnings))]
#![cfg_attr(not(test), no_std)]
#![cfg_attr(feature = "compiler-builtins", compiler_builtins)]
#![crate_name = "compiler_builtins"]
#![crate_type = "rlib"]
#![doc(html_logo_url = "https://www.rust-lang.org/logos/rust-logo-128x128-blk.png",
html_favicon_url = "https://doc.rust-lang.org/favicon.ico",
html_root_url = "https://doc.rust-lang.org/nightly/",
html_playground_url = "https://play.rust-lang.org/",
test(attr(deny(warnings))))]
#![feature(asm)]
#![feature(compiler_builtins)]
#![feature(core_intrinsics)]
#![feature(naked_functions)]
#![feature(staged_api)]
#![no_builtins]
#![unstable(feature = "compiler_builtins_lib",
reason = "Compiler builtins. Will never become stable.",
issue = "0")]
// We disable #[no_mangle] for tests so that we can verify the test results
// against the native compiler-rt implementations of the builtins.
// NOTE cfg(all(feature = "c", ..)) indicate that compiler-rt provides an arch optimized
// implementation of that intrinsic and we'll prefer to use that
// TODO(rust-lang/rust#37029) use e.g. checked_div(_).unwrap_or_else(|| abort())
macro_rules! udiv {
($a:expr, $b:expr) => {
unsafe {
let a = $a;
let b = $b;
if b == 0 {
::core::intrinsics::abort()
} else {
::core::intrinsics::unchecked_div(a, b)
}
}
}
}
macro_rules! sdiv {
($sty:ident, $a:expr, $b:expr) => {
unsafe {
let a = $a;
let b = $b;
if b == 0 || (b == -1 && a == $sty::min_value()) {
::core::intrinsics::abort()
} else {
::core::intrinsics::unchecked_div(a, b)
}
}
}
}
macro_rules! urem {
($a:expr, $b:expr) => {
unsafe {
let a = $a;
let b = $b;
if b == 0 {
::core::intrinsics::abort()
} else {
::core::intrinsics::unchecked_rem(a, b)
}
}
}
}
macro_rules! srem {
($sty:ty, $a:expr, $b:expr) => {
unsafe {
let a = $a;
let b = $b;
if b == 0 || (b == -1 && a == $sty::min_value()) {
::core::intrinsics::abort()
} else {
::core::intrinsics::unchecked_rem(a, b)
}
}
}
}
#[cfg(test)]
#[cfg_attr(target_arch = "arm", macro_use)]
extern crate quickcheck;
#[cfg(test)]
extern crate core;
#[cfg(test)]
extern crate gcc_s;
#[cfg(test)]
extern crate compiler_rt;
#[cfg(test)]
extern crate rand;
#[cfg(test)]
#[macro_use]
mod qc;
pub mod int;
pub mod float;
#[cfg(feature = "mem")]
pub mod mem;
#[cfg(target_arch = "arm")]
pub mod arm;
#[cfg(target_arch = "x86_64")]
pub mod x86_64;