#![warn(clippy::suboptimal_flops)]
#![allow(clippy::unnecessary_cast)]

fn main() {
    let one = 1;
    let x = 3f32;

    let y = 4f32;
    let _ = x.mul_add(x, y);
    //~^ suboptimal_flops
    let _ = x.mul_add(x, -y);
    //~^ suboptimal_flops
    let _ = y.mul_add(y, x);
    //~^ suboptimal_flops
    let _ = y.mul_add(-y, x);
    //~^ suboptimal_flops
    let _ = (y as f32).mul_add(y as f32, x);
    //~^ suboptimal_flops
    let _ = x.mul_add(x, y).sqrt();
    //~^ suboptimal_flops
    let _ = y.mul_add(y, x).sqrt();
    //~^ suboptimal_flops

    let _ = (x - 1.0).mul_add(x - 1.0, -y);
    //~^ suboptimal_flops
    let _ = (x - 1.0).mul_add(x - 1.0, -y) + 3.0;
    //~^ suboptimal_flops
    let _ = (x - 1.0).mul_add(x - 1.0, -(y + 3.0));
    //~^ suboptimal_flops
    let _ = (y + 1.0).mul_add(-(y + 1.0), x);
    //~^ suboptimal_flops
    let _ = (3.0 * y).mul_add(-(3.0 * y), x);
    //~^ suboptimal_flops
    let _ = (y + 1.0 + x).mul_add(-(y + 1.0 + x), x);
    //~^ suboptimal_flops
    let _ = (y + 1.0 + 2.0).mul_add(-(y + 1.0 + 2.0), x);
    //~^ suboptimal_flops

    // Cases where the lint shouldn't be applied
    let _ = x.powi(2);
    let _ = x.powi(1 + 1);
    let _ = x.powi(3);
    let _ = x.powi(4) + y;
    let _ = x.powi(one + 1);
    let _ = (x.powi(2) + y.powi(2)).sqrt();
}
