gcc/testsuite/rust/compile/issues/1383.rs

#![feature(no_core)]
#![no_core]

#![feature(lang_items)]
#[lang = "sized"]
pub trait Sized {}

pub fn generic_function<X>(a: X) -> X {
    a
}

fn main() -> i32 {
    let a = generic_function(123);
    a - 123
}