| //@ build-fail |
| //@ compile-flags: --crate-type=lib |
| //@ only-aarch64 |
| #![allow(incomplete_features, internal_features)] |
| #![feature( |
| simd_ffi, |
| rustc_attrs, |
| link_llvm_intrinsics |
| )] |
| |
| #[derive(Copy, Clone)] |
| #[rustc_scalable_vector(4)] |
| #[allow(non_camel_case_types)] |
| pub struct svint32_t(i32); |
| |
| #[inline(never)] |
| #[target_feature(enable = "sve")] |
| pub unsafe fn svdup_n_s32(op: i32) -> svint32_t { |
| extern "C" { |
| #[cfg_attr(target_arch = "aarch64", link_name = "llvm.aarch64.sve.dup.x.nxv4i32")] |
| fn _svdup_n_s32(op: i32) -> svint32_t; |
| //~^ WARN: `extern` block uses type `svint32_t`, which is not FFI-safe |
| } |
| unsafe { _svdup_n_s32(op) } |
| } |
| |
| pub fn non_annotated_callee(x: svint32_t) {} |
| //~^ ERROR: this function definition uses scalable vector type `svint32_t` |
| |
| #[target_feature(enable = "sve")] |
| pub fn annotated_callee(x: svint32_t) {} // okay! |
| |
| #[target_feature(enable = "sve")] |
| pub fn caller() { |
| unsafe { |
| let a = svdup_n_s32(42); |
| non_annotated_callee(a); |
| annotated_callee(a); |
| } |
| } |
