- // MIR for `main` before PreCodegen + // MIR for `main` after PreCodegen fn main() -> () { let mut _0: (); // return place in scope 0 at $DIR/issue-73223.rs:1:11: 1:11 let _1: i32; // in scope 0 at $DIR/issue-73223.rs:2:9: 2:14 let mut _2: std::option::Option; // in scope 0 at $DIR/issue-73223.rs:2:23: 2:30 let _3: i32; // in scope 0 at $DIR/issue-73223.rs:3:14: 3:15 let mut _5: (&i32, &i32); // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _6: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _9: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _10: bool; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _11: i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _12: std::fmt::Arguments; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _13: &[&str; 3]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _14: &[std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let _15: [std::fmt::ArgumentV1; 2]; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _16: (&&i32, &&i32); // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let _17: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _18: &&i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let _19: &i32; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _20: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _21: std::fmt::ArgumentV1; // in scope 0 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 1 { debug split => _1; // in scope 1 at $DIR/issue-73223.rs:2:9: 2:14 let _4: std::option::Option; // in scope 1 at $DIR/issue-73223.rs:7:9: 7:14 scope 3 { debug _prev => _4; // in scope 3 at $DIR/issue-73223.rs:7:9: 7:14 let _7: &i32; // in scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let _8: &i32; // in scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 4 { debug left_val => _7; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug right_val => _8; // in scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 5 { debug arg0 => _24; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug arg1 => _27; // in scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 6 (inlined ArgumentV1::new::<&i32>) { // at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug x => _24; // in scope 6 at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug f => _23; // in scope 6 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _22: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _23: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 6 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _24: &&i32; // in scope 6 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 7 { } } scope 8 (inlined ArgumentV1::new::<&i32>) { // at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug x => _27; // in scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug f => _26; // in scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _25: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _26: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>; // in scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _27: &&i32; // in scope 8 at $SRC_DIR/core/src/macros/mod.rs:LL:COL scope 9 { } } } scope 10 (inlined Arguments::new_v1) { // at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug pieces => (_12.0: &[&str]); // in scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL debug args => _29; // in scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _28: std::option::Option<&[std::fmt::rt::v1::Argument]>; // in scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL let mut _29: &[std::fmt::ArgumentV1]; // in scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL } } } } scope 2 { debug v => _3; // in scope 2 at $DIR/issue-73223.rs:3:14: 3:15 } bb0: { StorageLive(_1); // scope 0 at $DIR/issue-73223.rs:2:9: 2:14 StorageLive(_2); // scope 0 at $DIR/issue-73223.rs:2:23: 2:30 ((_2 as Some).0: i32) = const 1_i32; // scope 0 at $DIR/issue-73223.rs:2:23: 2:30 discriminant(_2) = 1; // scope 0 at $DIR/issue-73223.rs:2:23: 2:30 StorageLive(_3); // scope 0 at $DIR/issue-73223.rs:3:14: 3:15 _3 = ((_2 as Some).0: i32); // scope 0 at $DIR/issue-73223.rs:3:14: 3:15 _1 = _3; // scope 2 at $DIR/issue-73223.rs:3:20: 3:21 StorageDead(_3); // scope 0 at $DIR/issue-73223.rs:3:20: 3:21 StorageDead(_2); // scope 0 at $DIR/issue-73223.rs:5:6: 5:7 ((_4 as Some).0: i32) = _1; // scope 1 at $DIR/issue-73223.rs:7:22: 7:27 discriminant(_4) = 1; // scope 1 at $DIR/issue-73223.rs:7:17: 7:28 (_5.0: &i32) = &_1; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _6 = const main::promoted[1]; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // ty::Const // + ty: &i32 // + val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main), const_param_did: None }, [], Some(promoted[1])) // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: &i32, val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main), const_param_did: None }, [], Some(promoted[1])) } (_5.1: &i32) = move _6; // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_7); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _7 = (_5.0: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_8); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _8 = (_5.1: &i32); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_9); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_10); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_11); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _11 = (*_7); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _10 = Eq(move _11, const 1_i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_11); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _9 = Not(move _10); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_10); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL switchInt(_9) -> [false: bb1, otherwise: bb2]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL } bb1: { StorageDead(_9); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_8); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_7); // scope 3 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _0 = const (); // scope 0 at $DIR/issue-73223.rs:1:11: 9:2 StorageDead(_1); // scope 0 at $DIR/issue-73223.rs:9:1: 9:2 return; // scope 0 at $DIR/issue-73223.rs:9:2: 9:2 } bb2: { _13 = const main::promoted[0]; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // ty::Const // + ty: &[&str; 3] // + val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main), const_param_did: None }, [], Some(promoted[0])) // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: &[&str; 3], val: Unevaluated(WithOptConstParam { did: DefId(0:3 ~ issue_73223[317d]::main), const_param_did: None }, [], Some(promoted[0])) } (_12.0: &[&str]) = move _13 as &[&str] (Pointer(Unsize)); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_15); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_17); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _17 = _7; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL (_16.0: &&i32) = &_17; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_18); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_19); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _19 = _8; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _18 = &_19; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL (_16.1: &&i32) = move _18; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_18); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _24 = (_16.0: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _27 = (_16.1: &&i32); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _23 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar()) } StorageLive(_22); // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _22 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _23) -> bb3; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute:: fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar()) } } bb3: { (_20.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _24) -> bb4; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(&&i32) -> &core::fmt::Opaque {std::intrinsics::transmute::<&&i32, &core::fmt::Opaque>}, val: Value(Scalar()) } } bb4: { (_20.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _22; // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_22); // scope 7 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _26 = <&i32 as Debug>::fmt as for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> (Pointer(ReifyFnPointer)); // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {<&i32 as std::fmt::Debug>::fmt}, val: Value(Scalar()) } StorageLive(_25); // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _25 = transmute:: fn(&'r &i32, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>(move _26) -> bb5; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(for<'r, 's, 't0> fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) -> for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error> {std::intrinsics::transmute:: fn(&'r &i32, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>, for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>>}, val: Value(Scalar()) } } bb5: { (_21.0: &core::fmt::Opaque) = transmute::<&&i32, &core::fmt::Opaque>(move _27) -> bb6; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: unsafe extern "rust-intrinsic" fn(&&i32) -> &core::fmt::Opaque {std::intrinsics::transmute::<&&i32, &core::fmt::Opaque>}, val: Value(Scalar()) } } bb6: { (_21.1: for<'r, 's, 't0> fn(&'r core::fmt::Opaque, &'s mut std::fmt::Formatter<'t0>) -> std::result::Result<(), std::fmt::Error>) = move _25; // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_25); // scope 9 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _15 = [move _20, move _21]; // scope 5 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _14 = &_15; // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL _29 = move _14 as &[std::fmt::ArgumentV1] (Pointer(Unsize)); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageLive(_28); // scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL discriminant(_28) = 0; // scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL (_12.1: std::option::Option<&[std::fmt::rt::v1::Argument]>) = move _28; // scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL (_12.2: &[std::fmt::ArgumentV1]) = move _29; // scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL StorageDead(_28); // scope 10 at $SRC_DIR/core/src/macros/mod.rs:LL:COL core::panicking::panic_fmt(move _12); // scope 4 at $SRC_DIR/core/src/macros/mod.rs:LL:COL // mir::Constant // + span: $SRC_DIR/core/src/macros/mod.rs:LL:COL // + literal: Const { ty: for<'r> fn(std::fmt::Arguments<'r>) -> ! {core::panicking::panic_fmt}, val: Value(Scalar()) } } }