// MIR for `tail_call` after built fn tail_call(_1: i32) -> i32 { let mut _0: i32; let mut _2: i32; bb0: { _2 = Add(copy _1, const 42_i32); tailcall ident::(Spanned { node: copy _2, span: $DIR/terminators.rs:32:28: 32:29 (#0) }); } }