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