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[rustc.git] / src / test / mir-opt / const_prop / control_flow_simplification.rs

// unit-test: ConstProp
// compile-flags: -Zmir-opt-level=1

trait NeedsDrop: Sized {
    const NEEDS: bool = std::mem::needs_drop::<Self>();
}

impl<This> NeedsDrop for This {}

// EMIT_MIR control_flow_simplification.hello.ConstProp.diff
// EMIT_MIR control_flow_simplification.hello.PreCodegen.before.mir
fn hello<T>(){
    if <bool>::NEEDS {
        panic!()
    }
}

pub fn main() {
    hello::<()>();
    hello::<Vec<()>>();
}