- // MIR for `main` before ConstProp + // MIR for `main` after ConstProp fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/read_immutable_static.rs:6:11: 6:11 let _1: u8; // in scope 0 at $DIR/read_immutable_static.rs:7:9: 7:10 let mut _2: u8; // in scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16 let mut _3: &u8; // in scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16 let mut _4: u8; // in scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22 let mut _5: &u8; // in scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22 scope 1 { debug x => _1; // in scope 1 at $DIR/read_immutable_static.rs:7:9: 7:10 } bb0: { StorageLive(_1); // scope 0 at $DIR/read_immutable_static.rs:7:9: 7:10 StorageLive(_2); // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16 StorageLive(_3); // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16 _3 = const {alloc1: &u8}; // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16 // mir::Constant // + span: $DIR/read_immutable_static.rs:7:13: 7:16 // + literal: Const { ty: &u8, val: Value(Scalar(alloc1)) } - _2 = (*_3); // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16 + _2 = const 2_u8; // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:16 StorageLive(_4); // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22 StorageLive(_5); // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22 _5 = const {alloc1: &u8}; // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22 // mir::Constant // + span: $DIR/read_immutable_static.rs:7:19: 7:22 // + literal: Const { ty: &u8, val: Value(Scalar(alloc1)) } - _4 = (*_5); // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22 - _1 = Add(move _2, move _4); // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:22 + _4 = const 2_u8; // scope 0 at $DIR/read_immutable_static.rs:7:19: 7:22 + _1 = const 4_u8; // scope 0 at $DIR/read_immutable_static.rs:7:13: 7:22 StorageDead(_4); // scope 0 at $DIR/read_immutable_static.rs:7:21: 7:22 StorageDead(_2); // scope 0 at $DIR/read_immutable_static.rs:7:21: 7:22 StorageDead(_5); // scope 0 at $DIR/read_immutable_static.rs:7:22: 7:23 StorageDead(_3); // scope 0 at $DIR/read_immutable_static.rs:7:22: 7:23 nop; // scope 0 at $DIR/read_immutable_static.rs:6:11: 8:2 StorageDead(_1); // scope 0 at $DIR/read_immutable_static.rs:8:1: 8:2 return; // scope 0 at $DIR/read_immutable_static.rs:8:2: 8:2 } } alloc1 (static: FOO, size: 1, align: 1) { 02 │ . }