rust/tests/ui/simd/const-err-trumps-simd-err.rs

25 lines
746 B
Rust
Raw Normal View History

//@build-fail
//! Make sure that monomorphization-time const errors from `static_assert` take priority over the
//! error from simd_extract. Basically this checks that if a const fails to evaluate in some
//! function, we don't bother codegen'ing the function.
#![feature(generic_arg_infer)]
#![feature(core_intrinsics)]
#![feature(repr_simd)]
#![feature(inline_const)]
use std::intrinsics::simd::*;
#[repr(simd)]
#[allow(non_camel_case_types)]
struct int8x4_t(u8,u8,u8,u8);
fn get_elem<const LANE: u32>(a: int8x4_t) -> u8 {
const { assert!(LANE < 4); } // the error should be here...
//~^ ERROR failed
//~| assertion failed
unsafe { simd_extract(a, LANE) } // ...not here
}
fn main() {
get_elem::<4>(int8x4_t(0,0,0,0));
}