src/test/ui/feature-gates/feature-gate-custom_mir.rs


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#![feature(core_intrinsics)]

extern crate core;

#[custom_mir(dialect = "built")] //~ ERROR the `#[custom_mir]` attribute is just used for the Rust test suite
pub fn foo(_x: i32) -> i32 {
    0
}

fn main() {
    assert_eq!(2, foo(2));
}