gcc/testsuite/rust/compile/torture/constant1.rs

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

const TEST_CONST:i32 = 10;

fn main() {
    let mut x = TEST_CONST;
    x = x + 1;

    let mut y = x + TEST_CONST;
    // { dg-warning "unused name" "" { target *-*-* } .-1 }
}