- // MIR for `t4` before SimplifyLocals-before-const-prop + // MIR for `t4` after SimplifyLocals-before-const-prop fn t4() -> u32 { let mut _0: u32; let mut _1: u32; let mut _2: *mut u32; scope 1 { } bb0: { StorageLive(_1); StorageLive(_2); _2 = &/*tls*/ mut X; _1 = (*_2); _0 = Add(move _1, const 1_u32); StorageDead(_1); StorageDead(_2); return; } }