// MIR for `main` after PreCodegen fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/optimizes_into_variable.rs:+0:11: +0:11 scope 1 { debug x => const 4_i32; // in scope 1 at $DIR/optimizes_into_variable.rs:+1:9: +1:10 scope 2 { debug y => const 3_i32; // in scope 2 at $DIR/optimizes_into_variable.rs:+2:9: +2:10 scope 3 { debug z => const 42_u32; // in scope 3 at $DIR/optimizes_into_variable.rs:+3:9: +3:10 } } } bb0: { return; // scope 0 at $DIR/optimizes_into_variable.rs:+4:2: +4:2 } }