73 lines
2.0 KiB
Rust
73 lines
2.0 KiB
Rust
//@ revisions: aarch64 x86-64
|
|
//@ [aarch64] compile-flags: -Ctarget-feature=+neon,+fp16,+fhm --target=aarch64-unknown-linux-gnu
|
|
//@ [aarch64] needs-llvm-components: aarch64
|
|
//@ [x86-64] compile-flags: -Ctarget-feature=+sse4.2,+rdrand --target=x86_64-unknown-linux-gnu
|
|
//@ [x86-64] needs-llvm-components: x86
|
|
//@ build-pass
|
|
#![no_core]
|
|
#![crate_type = "rlib"]
|
|
#![feature(intrinsics, rustc_attrs, no_core, lang_items, staged_api, lint_reasons)]
|
|
#![stable(feature = "test", since = "1.0.0")]
|
|
|
|
// Supporting minimal rust core code
|
|
#[lang = "sized"]
|
|
trait Sized {}
|
|
#[lang = "copy"]
|
|
trait Copy {}
|
|
impl Copy for bool {}
|
|
|
|
extern "rust-intrinsic" {
|
|
#[rustc_const_stable(feature = "test", since = "1.0.0")]
|
|
fn unreachable() -> !;
|
|
}
|
|
|
|
#[rustc_builtin_macro]
|
|
macro_rules! cfg {
|
|
($($cfg:tt)*) => {};
|
|
}
|
|
|
|
// Test code
|
|
const fn do_or_die(cond: bool) {
|
|
if cond {
|
|
} else {
|
|
unsafe { unreachable() }
|
|
}
|
|
}
|
|
|
|
macro_rules! assert {
|
|
($x:expr $(,)?) => {
|
|
const _: () = do_or_die($x);
|
|
};
|
|
}
|
|
|
|
|
|
#[cfg(target_arch = "aarch64")]
|
|
fn check_aarch64() {
|
|
// These checks that the rustc feature name is used, not the LLVM feature.
|
|
|
|
assert!(cfg!(target_feature = "neon"));
|
|
// #[expect(unexpected_cfgs)] except that 32-bit arm actually use fp-armv8
|
|
{ assert!(cfg!(not(target_feature = "fp-armv8"))); }
|
|
|
|
assert!(cfg!(target_feature = "fhm"));
|
|
#[expect(unexpected_cfgs)]
|
|
{ assert!(cfg!(not(target_feature = "fp16fml"))); }
|
|
|
|
assert!(cfg!(target_feature = "fp16"));
|
|
#[expect(unexpected_cfgs)]
|
|
{ assert!(cfg!(not(target_feature = "fullfp16"))); }
|
|
}
|
|
|
|
#[cfg(target_arch = "x86_64")]
|
|
fn check_x86_64() {
|
|
// This checks that the rustc feature name is used, not the LLVM feature.
|
|
assert!(cfg!(target_feature = "rdrand"));
|
|
#[expect(unexpected_cfgs)]
|
|
{ assert!(cfg!(not(target_feature = "rdrnd"))); }
|
|
|
|
// Likewise: We enable LLVM's crc32 feature with SSE4.2, but Rust says it's just SSE4.2
|
|
assert!(cfg!(target_feature = "sse4.2"));
|
|
#[expect(unexpected_cfgs)]
|
|
{ assert!(cfg!(not(target_feature = "crc32"))); }
|
|
}
|