62 lines
1.6 KiB
Rust
62 lines
1.6 KiB
Rust
//@ revisions: aarch64-neon aarch64-sve2
|
|
//@ [aarch64-neon] compile-flags: -Ctarget-feature=+neon --target=aarch64-unknown-linux-gnu
|
|
//@ [aarch64-neon] needs-llvm-components: aarch64
|
|
//@ [aarch64-sve2] compile-flags: -Ctarget-feature=-neon,+sve2 --target=aarch64-unknown-linux-gnu
|
|
//@ [aarch64-sve2] needs-llvm-components: aarch64
|
|
//@ build-pass
|
|
#![no_core]
|
|
#![crate_type = "rlib"]
|
|
#![feature(intrinsics, rustc_attrs, no_core, lang_items, staged_api)]
|
|
#![stable(feature = "test", since = "1.0.0")]
|
|
|
|
// Tests vetting "feature hierarchies" in the cases where we impose them.
|
|
|
|
// Supporting minimal rust core code
|
|
#[lang = "sized"]
|
|
trait Sized {}
|
|
#[lang = "copy"]
|
|
trait Copy {}
|
|
impl Copy for bool {}
|
|
|
|
#[stable(feature = "test", since = "1.0.0")]
|
|
#[rustc_const_stable(feature = "test", since = "1.0.0")]
|
|
#[rustc_intrinsic]
|
|
#[rustc_intrinsic_must_be_overridden]
|
|
const unsafe fn unreachable() -> ! {
|
|
loop {}
|
|
}
|
|
|
|
#[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(aarch64_neon)]
|
|
fn check_neon_not_sve2() {
|
|
// This checks that a normal aarch64 target doesn't suddenly jump up the feature hierarchy.
|
|
assert!(cfg!(target_feature = "neon"));
|
|
assert!(cfg!(not(target_feature = "sve2")));
|
|
}
|
|
|
|
#[cfg(aarch64_sve2)]
|
|
fn check_sve2_includes_neon() {
|
|
// This checks that aarch64's sve2 includes neon
|
|
assert!(cfg!(target_feature = "neon"));
|
|
assert!(cfg!(target_feature = "sve2"));
|
|
}
|