Invalid monomorphization of an intrinsic function was used.
Erroneous code example:
#![feature(platform_intrinsics)]
extern "platform-intrinsic" {
fn simd_add<T>(a: T, b: T) -> T;
}
fn main() {
unsafe { simd_add(0, 1); }
// error: invalid monomorphization of `simd_add` intrinsic
}The generic type has to be a SIMD type. Example:
#![feature(repr_simd)]
#![feature(platform_intrinsics)]
#[repr(simd)]
#[derive(Copy, Clone)]
struct i32x2(i32, i32);
extern "platform-intrinsic" {
fn simd_add<T>(a: T, b: T) -> T;
}
unsafe { simd_add(i32x2(0, 0), i32x2(1, 2)); } // ok!