src/test/ui/feature-gate-optimize_attribute.rs

#![crate_type="rlib"]
#![optimize(speed)] //~ ERROR `#[optimize]` attribute is an unstable feature

#[optimize(size)] //~ ERROR `#[optimize]` attribute is an unstable feature
mod module {

#[optimize(size)] //~ ERROR `#[optimize]` attribute is an unstable feature
fn size() {}

#[optimize(speed)] //~ ERROR `#[optimize]` attribute is an unstable feature
fn speed() {}

#[optimize(banana)]
//~^ ERROR `#[optimize]` attribute is an unstable feature
//~| ERROR E0722
fn not_known() {}

}