rust/tests/ui/asm/generic_const_simd_vec_len.rs
2024-12-11 20:17:37 +00:00

21 lines
521 B
Rust

//! This is a regression test to ensure that we emit a diagnostic pointing to the
//! reason the type was rejected in inline assembly.
//@ only-x86_64
#![feature(repr_simd)]
#[repr(simd)]
#[derive(Copy, Clone)]
pub struct Foo<const C: usize>([u8; C]);
//~^ ERROR: cannot evaluate SIMD vector length
pub unsafe fn foo<const C: usize>(a: Foo<C>) {
std::arch::asm!(
"movaps {src}, {src}",
src = in(xmm_reg) a,
//~^ NOTE: SIMD vector length needs to be known statically
);
}
fn main() {}