Auto merge of #122852 - compiler-errors:raw-ptr, r=lcnr

Remove `TypeAndMut` from `ty::RawPtr` variant, make it take `Ty` and `Mutability`

Pretty much mechanically converting `ty::RawPtr(ty::TypeAndMut { ty, mutbl })` to `ty::RawPtr(ty, mutbl)` and its fallout.

r? lcnr

cc rust-lang/types-team#124

compiler/rustc_borrowck/src/diagnostics/mod.rs

@@ -366,7 +366,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                     Some(variant.fields[field].name.to_string())
                 }
                 ty::Tuple(_) => Some(field.index().to_string()),
-                ty::Ref(_, ty, _) | ty::RawPtr(ty::TypeAndMut { ty, .. }) => {
+                ty::Ref(_, ty, _) | ty::RawPtr(ty, _) => {
                     self.describe_field_from_ty(ty, field, variant_index, including_tuple_field)
                 }
                 ty::Array(ty, _) | ty::Slice(ty) => {

compiler/rustc_borrowck/src/diagnostics/region_errors.rs

@@ -503,10 +503,10 @@ impl<'a, 'tcx> MirBorrowckCtxt<'a, 'tcx> {
             ty::VarianceDiagInfo::None => {}
             ty::VarianceDiagInfo::Invariant { ty, param_index } => {
                 let (desc, note) = match ty.kind() {
-                    ty::RawPtr(ty_mut) => {
-                        assert_eq!(ty_mut.mutbl, rustc_hir::Mutability::Mut);
+                    ty::RawPtr(ty, mutbl) => {
+                        assert_eq!(*mutbl, rustc_hir::Mutability::Mut);
                         (
-                            format!("a mutable pointer to `{}`", ty_mut.ty),
+                            format!("a mutable pointer to `{}`", ty),
                             "mutable pointers are invariant over their type parameter".to_string(),
                         )
                     }

compiler/rustc_borrowck/src/diagnostics/region_name.rs

@@ -555,8 +555,8 @@ impl<'tcx> MirBorrowckCtxt<'_, 'tcx> {
                     search_stack.push((*elem_ty, elem_hir_ty));
                 }
 
-                (ty::RawPtr(mut_ty), hir::TyKind::Ptr(mut_hir_ty)) => {
-                    search_stack.push((mut_ty.ty, &mut_hir_ty.ty));
+                (ty::RawPtr(mut_ty, _), hir::TyKind::Ptr(mut_hir_ty)) => {
+                    search_stack.push((*mut_ty, &mut_hir_ty.ty));
                 }
 
                 _ => {

compiler/rustc_borrowck/src/lib.rs

@@ -1649,7 +1649,7 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                     | ty::Str
                     | ty::Array(_, _)
                     | ty::Slice(_)
-                    | ty::RawPtr(_)
+                    | ty::RawPtr(_, _)
                     | ty::Ref(_, _, _)
                     | ty::FnDef(_, _)
                     | ty::FnPtr(_)
@@ -2284,8 +2284,8 @@ impl<'cx, 'tcx> MirBorrowckCtxt<'cx, 'tcx> {
                                     }
                                 }
                             }
-                            ty::RawPtr(tnm) => {
-                                match tnm.mutbl {
+                            ty::RawPtr(_, mutbl) => {
+                                match mutbl {
                                     // `*const` raw pointers are not mutable
                                     hir::Mutability::Not => Err(place),
                                     // `*mut` raw pointers are always mutable, regardless of

compiler/rustc_borrowck/src/type_check/mod.rs

@@ -2157,15 +2157,12 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                     }
 
                     CastKind::PointerCoercion(PointerCoercion::MutToConstPointer) => {
-                        let ty::RawPtr(ty::TypeAndMut { ty: ty_from, mutbl: hir::Mutability::Mut }) =
-                            op.ty(body, tcx).kind()
+                        let ty::RawPtr(ty_from, hir::Mutability::Mut) = op.ty(body, tcx).kind()
                         else {
                             span_mirbug!(self, rvalue, "unexpected base type for cast {:?}", ty,);
                             return;
                         };
-                        let ty::RawPtr(ty::TypeAndMut { ty: ty_to, mutbl: hir::Mutability::Not }) =
-                            ty.kind()
-                        else {
+                        let ty::RawPtr(ty_to, hir::Mutability::Not) = ty.kind() else {
                             span_mirbug!(self, rvalue, "unexpected target type for cast {:?}", ty,);
                             return;
                         };
@@ -2190,12 +2187,10 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                         let ty_from = op.ty(body, tcx);
 
                         let opt_ty_elem_mut = match ty_from.kind() {
-                            ty::RawPtr(ty::TypeAndMut { mutbl: array_mut, ty: array_ty }) => {
-                                match array_ty.kind() {
+                            ty::RawPtr(array_ty, array_mut) => match array_ty.kind() {
                                 ty::Array(ty_elem, _) => Some((ty_elem, *array_mut)),
                                 _ => None,
-                                }
-                            }
+                            },
                             _ => None,
                         };
 
@@ -2210,9 +2205,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                         };
 
                         let (ty_to, ty_to_mut) = match ty.kind() {
-                            ty::RawPtr(ty::TypeAndMut { mutbl: ty_to_mut, ty: ty_to }) => {
-                                (ty_to, *ty_to_mut)
-                            }
+                            ty::RawPtr(ty_to, ty_to_mut) => (ty_to, *ty_to_mut),
                             _ => {
                                 span_mirbug!(
                                     self,
@@ -2413,7 +2406,7 @@ impl<'a, 'tcx> TypeChecker<'a, 'tcx> {
                 let ty_left = left.ty(body, tcx);
                 match ty_left.kind() {
                     // Types with regions are comparable if they have a common super-type.
-                    ty::RawPtr(_) | ty::FnPtr(_) => {
+                    ty::RawPtr(_, _) | ty::FnPtr(_) => {
                         let ty_right = right.ty(body, tcx);
                         let common_ty = self.infcx.next_ty_var(TypeVariableOrigin {
                             kind: TypeVariableOriginKind::MiscVariable,

compiler/rustc_codegen_cranelift/src/abi/mod.rs

@@ -677,11 +677,7 @@ pub(crate) fn codegen_drop<'tcx>(
 
                 let arg_value = drop_place.place_ref(
                     fx,
-                    fx.layout_of(Ty::new_ref(
-                        fx.tcx,
-                        fx.tcx.lifetimes.re_erased,
-                        TypeAndMut { ty, mutbl: crate::rustc_hir::Mutability::Mut },
-                    )),
+                    fx.layout_of(Ty::new_mut_ref(fx.tcx, fx.tcx.lifetimes.re_erased, ty)),
                 );
                 let arg_value = adjust_arg_for_abi(fx, arg_value, &fn_abi.args[0], true);
 

compiler/rustc_codegen_cranelift/src/common.rs

@@ -69,7 +69,7 @@ fn clif_type_from_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Option<types::Typ
             FloatTy::F128 => unimplemented!("f16_f128"),
         },
         ty::FnPtr(_) => pointer_ty(tcx),
-        ty::RawPtr(TypeAndMut { ty: pointee_ty, mutbl: _ }) | ty::Ref(_, pointee_ty, _) => {
+        ty::RawPtr(pointee_ty, _) | ty::Ref(_, pointee_ty, _) => {
             if has_ptr_meta(tcx, *pointee_ty) {
                 return None;
             } else {
@@ -89,7 +89,7 @@ fn clif_pair_type_from_ty<'tcx>(
         ty::Tuple(types) if types.len() == 2 => {
             (clif_type_from_ty(tcx, types[0])?, clif_type_from_ty(tcx, types[1])?)
         }
-        ty::RawPtr(TypeAndMut { ty: pointee_ty, mutbl: _ }) | ty::Ref(_, pointee_ty, _) => {
+        ty::RawPtr(pointee_ty, _) | ty::Ref(_, pointee_ty, _) => {
             if has_ptr_meta(tcx, *pointee_ty) {
                 (pointer_ty(tcx), pointer_ty(tcx))
             } else {

compiler/rustc_codegen_cranelift/src/unsize.rs

@@ -70,10 +70,8 @@ fn unsize_ptr<'tcx>(
 ) -> (Value, Value) {
     match (&src_layout.ty.kind(), &dst_layout.ty.kind()) {
         (&ty::Ref(_, a, _), &ty::Ref(_, b, _))
-        | (&ty::Ref(_, a, _), &ty::RawPtr(ty::TypeAndMut { ty: b, .. }))
-        | (&ty::RawPtr(ty::TypeAndMut { ty: a, .. }), &ty::RawPtr(ty::TypeAndMut { ty: b, .. })) => {
-            (src, unsized_info(fx, *a, *b, old_info))
-        }
+        | (&ty::Ref(_, a, _), &ty::RawPtr(b, _))
+        | (&ty::RawPtr(a, _), &ty::RawPtr(b, _)) => (src, unsized_info(fx, *a, *b, old_info)),
         (&ty::Adt(def_a, _), &ty::Adt(def_b, _)) => {
             assert_eq!(def_a, def_b);
 

compiler/rustc_codegen_cranelift/src/value_and_place.rs

@@ -865,15 +865,10 @@ pub(crate) fn assert_assignable<'tcx>(
         return;
     }
     match (from_ty.kind(), to_ty.kind()) {
-        (ty::Ref(_, a, _), ty::Ref(_, b, _))
-        | (
-            ty::RawPtr(TypeAndMut { ty: a, mutbl: _ }),
-            ty::RawPtr(TypeAndMut { ty: b, mutbl: _ }),
-        ) => {
+        (ty::Ref(_, a, _), ty::Ref(_, b, _)) | (ty::RawPtr(a, _), ty::RawPtr(b, _)) => {
             assert_assignable(fx, *a, *b, limit - 1);
         }
-        (ty::Ref(_, a, _), ty::RawPtr(TypeAndMut { ty: b, mutbl: _ }))
-        | (ty::RawPtr(TypeAndMut { ty: a, mutbl: _ }), ty::Ref(_, b, _)) => {
+        (ty::Ref(_, a, _), ty::RawPtr(b, _)) | (ty::RawPtr(a, _), ty::Ref(_, b, _)) => {
             assert_assignable(fx, *a, *b, limit - 1);
         }
         (ty::FnPtr(_), ty::FnPtr(_)) => {

compiler/rustc_codegen_gcc/src/intrinsic/simd.rs

@@ -796,16 +796,16 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
 
         // This counts how many pointers
         fn ptr_count(t: Ty<'_>) -> usize {
-            match t.kind() {
-                ty::RawPtr(p) => 1 + ptr_count(p.ty),
+            match *t.kind() {
+                ty::RawPtr(p_ty, _) => 1 + ptr_count(p_ty),
                 _ => 0,
             }
         }
 
         // Non-ptr type
         fn non_ptr(t: Ty<'_>) -> Ty<'_> {
-            match t.kind() {
-                ty::RawPtr(p) => non_ptr(p.ty),
+            match *t.kind() {
+                ty::RawPtr(p_ty, _) => non_ptr(p_ty),
                 _ => t,
             }
         }
@@ -814,8 +814,8 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
         // to the element type of the first argument
         let (_, element_ty0) = arg_tys[0].simd_size_and_type(bx.tcx());
         let (_, element_ty1) = arg_tys[1].simd_size_and_type(bx.tcx());
-        let (pointer_count, underlying_ty) = match element_ty1.kind() {
-            ty::RawPtr(p) if p.ty == in_elem => (ptr_count(element_ty1), non_ptr(element_ty1)),
+        let (pointer_count, underlying_ty) = match *element_ty1.kind() {
+            ty::RawPtr(p_ty, _) if p_ty == in_elem => (ptr_count(element_ty1), non_ptr(element_ty1)),
             _ => {
                 require!(
                     false,
@@ -910,16 +910,16 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
 
         // This counts how many pointers
         fn ptr_count(t: Ty<'_>) -> usize {
-            match t.kind() {
-                ty::RawPtr(p) => 1 + ptr_count(p.ty),
+            match *t.kind() {
+                ty::RawPtr(p_ty, _) => 1 + ptr_count(p_ty),
                 _ => 0,
             }
         }
 
         // Non-ptr type
         fn non_ptr(t: Ty<'_>) -> Ty<'_> {
-            match t.kind() {
-                ty::RawPtr(p) => non_ptr(p.ty),
+            match *t.kind() {
+                ty::RawPtr(p_ty, _) => non_ptr(p_ty),
                 _ => t,
             }
         }
@@ -929,8 +929,8 @@ pub fn generic_simd_intrinsic<'a, 'gcc, 'tcx>(
         let (_, element_ty0) = arg_tys[0].simd_size_and_type(bx.tcx());
         let (_, element_ty1) = arg_tys[1].simd_size_and_type(bx.tcx());
         let (_, element_ty2) = arg_tys[2].simd_size_and_type(bx.tcx());
-        let (pointer_count, underlying_ty) = match element_ty1.kind() {
-            ty::RawPtr(p) if p.ty == in_elem && p.mutbl == hir::Mutability::Mut => {
+        let (pointer_count, underlying_ty) = match *element_ty1.kind() {
+            ty::RawPtr(p_ty, mutbl) if p_ty == in_elem && mutbl == hir::Mutability::Mut => {
                 (ptr_count(element_ty1), non_ptr(element_ty1))
             }
             _ => {

compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs

@@ -452,7 +452,7 @@ pub fn type_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>) -> &'ll D
         ty::Slice(_) | ty::Str => build_slice_type_di_node(cx, t, unique_type_id),
         ty::Dynamic(..) => build_dyn_type_di_node(cx, t, unique_type_id),
         ty::Foreign(..) => build_foreign_type_di_node(cx, t, unique_type_id),
-        ty::RawPtr(ty::TypeAndMut { ty: pointee_type, .. }) | ty::Ref(_, pointee_type, _) => {
+        ty::RawPtr(pointee_type, _) | ty::Ref(_, pointee_type, _) => {
             build_pointer_or_reference_di_node(cx, t, pointee_type, unique_type_id)
         }
         // Some `Box` are newtyped pointers, make debuginfo aware of that.

compiler/rustc_codegen_llvm/src/intrinsic.rs

@@ -1483,7 +1483,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
                 v.normalize(bx.target_spec().pointer_width).bit_width().unwrap()
             ),
             ty::Float(v) => format!("v{}f{}", vec_len, v.bit_width()),
-            ty::RawPtr(_) => format!("v{}p0", vec_len),
+            ty::RawPtr(_, _) => format!("v{}p0", vec_len),
             _ => unreachable!(),
         }
     }
@@ -1493,7 +1493,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
             ty::Int(v) => cx.type_int_from_ty(v),
             ty::Uint(v) => cx.type_uint_from_ty(v),
             ty::Float(v) => cx.type_float_from_ty(v),
-            ty::RawPtr(_) => cx.type_ptr(),
+            ty::RawPtr(_, _) => cx.type_ptr(),
             _ => unreachable!(),
         };
         cx.type_vector(elem_ty, vec_len)
@@ -1548,8 +1548,8 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
 
         require!(
             matches!(
-                element_ty1.kind(),
-                ty::RawPtr(p) if p.ty == in_elem && p.ty.kind() == element_ty0.kind()
+                *element_ty1.kind(),
+                ty::RawPtr(p_ty, _) if p_ty == in_elem && p_ty.kind() == element_ty0.kind()
             ),
             InvalidMonomorphization::ExpectedElementType {
                 span,
@@ -1654,8 +1654,8 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
 
         require!(
             matches!(
-                pointer_ty.kind(),
-                ty::RawPtr(p) if p.ty == values_elem && p.ty.kind() == values_elem.kind()
+                *pointer_ty.kind(),
+                ty::RawPtr(p_ty, _) if p_ty == values_elem && p_ty.kind() == values_elem.kind()
             ),
             InvalidMonomorphization::ExpectedElementType {
                 span,
@@ -1746,8 +1746,8 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
         // The second argument must be a mutable pointer type matching the element type
         require!(
             matches!(
-                pointer_ty.kind(),
-                ty::RawPtr(p) if p.ty == values_elem && p.ty.kind() == values_elem.kind() && p.mutbl.is_mut()
+                *pointer_ty.kind(),
+                ty::RawPtr(p_ty, p_mutbl) if p_ty == values_elem && p_ty.kind() == values_elem.kind() && p_mutbl.is_mut()
             ),
             InvalidMonomorphization::ExpectedElementType {
                 span,
@@ -1843,9 +1843,9 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
 
         require!(
             matches!(
-                element_ty1.kind(),
-                ty::RawPtr(p)
-                    if p.ty == in_elem && p.mutbl.is_mut() && p.ty.kind() == element_ty0.kind()
+                *element_ty1.kind(),
+                ty::RawPtr(p_ty, p_mutbl)
+                    if p_ty == in_elem && p_mutbl.is_mut() && p_ty.kind() == element_ty0.kind()
             ),
             InvalidMonomorphization::ExpectedElementType {
                 span,
@@ -2074,8 +2074,8 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
         );
 
         match in_elem.kind() {
-            ty::RawPtr(p) => {
-                let metadata = p.ty.ptr_metadata_ty(bx.tcx, |ty| {
+            ty::RawPtr(p_ty, _) => {
+                let metadata = p_ty.ptr_metadata_ty(bx.tcx, |ty| {
                     bx.tcx.normalize_erasing_regions(ty::ParamEnv::reveal_all(), ty)
                 });
                 require!(
@@ -2088,8 +2088,8 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
             }
         }
         match out_elem.kind() {
-            ty::RawPtr(p) => {
-                let metadata = p.ty.ptr_metadata_ty(bx.tcx, |ty| {
+            ty::RawPtr(p_ty, _) => {
+                let metadata = p_ty.ptr_metadata_ty(bx.tcx, |ty| {
                     bx.tcx.normalize_erasing_regions(ty::ParamEnv::reveal_all(), ty)
                 });
                 require!(
@@ -2120,7 +2120,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
         );
 
         match in_elem.kind() {
-            ty::RawPtr(_) => {}
+            ty::RawPtr(_, _) => {}
             _ => {
                 return_error!(InvalidMonomorphization::ExpectedPointer { span, name, ty: in_elem })
             }
@@ -2152,7 +2152,7 @@ fn generic_simd_intrinsic<'ll, 'tcx>(
             _ => return_error!(InvalidMonomorphization::ExpectedUsize { span, name, ty: in_elem }),
         }
         match out_elem.kind() {
-            ty::RawPtr(_) => {}
+            ty::RawPtr(_, _) => {}
             _ => {
                 return_error!(InvalidMonomorphization::ExpectedPointer { span, name, ty: out_elem })
             }

compiler/rustc_codegen_ssa/src/base.rs

@@ -193,8 +193,8 @@ pub fn unsize_ptr<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>>(
 ) -> (Bx::Value, Bx::Value) {
     debug!("unsize_ptr: {:?} => {:?}", src_ty, dst_ty);
     match (src_ty.kind(), dst_ty.kind()) {
-        (&ty::Ref(_, a, _), &ty::Ref(_, b, _) | &ty::RawPtr(ty::TypeAndMut { ty: b, .. }))
-        | (&ty::RawPtr(ty::TypeAndMut { ty: a, .. }), &ty::RawPtr(ty::TypeAndMut { ty: b, .. })) => {
+        (&ty::Ref(_, a, _), &ty::Ref(_, b, _) | &ty::RawPtr(b, _))
+        | (&ty::RawPtr(a, _), &ty::RawPtr(b, _)) => {
             assert_eq!(bx.cx().type_is_sized(a), old_info.is_none());
             (src, unsized_info(bx, a, b, old_info))
         }

compiler/rustc_codegen_ssa/src/debuginfo/type_names.rs

@@ -138,7 +138,7 @@ fn push_debuginfo_type_name<'tcx>(
                 output.push(')');
             }
         }
-        ty::RawPtr(ty::TypeAndMut { ty: inner_type, mutbl }) => {
+        ty::RawPtr(inner_type, mutbl) => {
             if cpp_like_debuginfo {
                 match mutbl {
                     Mutability::Not => output.push_str("ptr_const$<"),

compiler/rustc_codegen_ssa/src/mir/debuginfo.rs

@@ -414,10 +414,7 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
                 calculate_debuginfo_offset(bx, var.projection, base);
 
             // Create a variable which will be a pointer to the actual value
-            let ptr_ty = Ty::new_ptr(
-                bx.tcx(),
-                ty::TypeAndMut { mutbl: mir::Mutability::Mut, ty: place.layout.ty },
-            );
+            let ptr_ty = Ty::new_mut_ptr(bx.tcx(), place.layout.ty);
             let ptr_layout = bx.layout_of(ptr_ty);
             let alloca = PlaceRef::alloca(bx, ptr_layout);
             bx.set_var_name(alloca.llval, &(var.name.to_string() + ".dbg.spill"));

compiler/rustc_codegen_ssa/src/mir/rvalue.rs

@@ -572,20 +572,15 @@ impl<'a, 'tcx, Bx: BuilderMethods<'a, 'tcx>> FunctionCx<'a, 'tcx, Bx> {
 
             mir::Rvalue::Ref(_, bk, place) => {
                 let mk_ref = move |tcx: TyCtxt<'tcx>, ty: Ty<'tcx>| {
-                    Ty::new_ref(
-                        tcx,
-                        tcx.lifetimes.re_erased,
-                        ty::TypeAndMut { ty, mutbl: bk.to_mutbl_lossy() },
-                    )
+                    Ty::new_ref(tcx, tcx.lifetimes.re_erased, ty, bk.to_mutbl_lossy())
                 };
                 self.codegen_place_to_pointer(bx, place, mk_ref)
             }
 
             mir::Rvalue::CopyForDeref(place) => self.codegen_operand(bx, &Operand::Copy(place)),
             mir::Rvalue::AddressOf(mutability, place) => {
-                let mk_ptr = move |tcx: TyCtxt<'tcx>, ty: Ty<'tcx>| {
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty, mutbl: mutability })
-                };
+                let mk_ptr =
+                    move |tcx: TyCtxt<'tcx>, ty: Ty<'tcx>| Ty::new_ptr(tcx, ty, mutability);
                 self.codegen_place_to_pointer(bx, place, mk_ptr)
             }
 

compiler/rustc_const_eval/src/const_eval/valtrees.rs

@@ -98,7 +98,7 @@ fn const_to_valtree_inner<'tcx>(
             Ok(ty::ValTree::Leaf(val.assert_int()))
         }
 
-        ty::RawPtr(_) => {
+        ty::RawPtr(_, _) => {
             // Not all raw pointers are allowed, as we cannot properly test them for
             // equality at compile-time (see `ptr_guaranteed_cmp`).
             // However we allow those that are just integers in disguise.
@@ -278,7 +278,7 @@ pub fn valtree_to_const_value<'tcx>(
             assert!(valtree.unwrap_branch().is_empty());
             mir::ConstValue::ZeroSized
         }
-        ty::Bool | ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::Char | ty::RawPtr(_) => {
+        ty::Bool | ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::Char | ty::RawPtr(_, _) => {
             match valtree {
                 ty::ValTree::Leaf(scalar_int) => mir::ConstValue::Scalar(Scalar::Int(scalar_int)),
                 ty::ValTree::Branch(_) => bug!(

compiler/rustc_const_eval/src/interpret/cast.rs

@@ -6,7 +6,7 @@ use rustc_middle::mir::interpret::{InterpResult, PointerArithmetic, Scalar};
 use rustc_middle::mir::CastKind;
 use rustc_middle::ty::adjustment::PointerCoercion;
 use rustc_middle::ty::layout::{IntegerExt, LayoutOf, TyAndLayout};
-use rustc_middle::ty::{self, FloatTy, Ty, TypeAndMut};
+use rustc_middle::ty::{self, FloatTy, Ty};
 use rustc_target::abi::Integer;
 use rustc_type_ir::TyKind::*;
 
@@ -230,7 +230,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
         src: &ImmTy<'tcx, M::Provenance>,
         cast_to: TyAndLayout<'tcx>,
     ) -> InterpResult<'tcx, ImmTy<'tcx, M::Provenance>> {
-        assert_matches!(src.layout.ty.kind(), ty::RawPtr(_) | ty::FnPtr(_));
+        assert_matches!(src.layout.ty.kind(), ty::RawPtr(_, _) | ty::FnPtr(_));
         assert!(cast_to.ty.is_integral());
 
         let scalar = src.to_scalar();
@@ -248,7 +248,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
         cast_to: TyAndLayout<'tcx>,
     ) -> InterpResult<'tcx, ImmTy<'tcx, M::Provenance>> {
         assert!(src.layout.ty.is_integral());
-        assert_matches!(cast_to.ty.kind(), ty::RawPtr(_));
+        assert_matches!(cast_to.ty.kind(), ty::RawPtr(_, _));
 
         // First cast to usize.
         let scalar = src.to_scalar();
@@ -435,10 +435,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
     ) -> InterpResult<'tcx> {
         trace!("Unsizing {:?} of type {} into {}", *src, src.layout.ty, cast_ty.ty);
         match (&src.layout.ty.kind(), &cast_ty.ty.kind()) {
-            (&ty::Ref(_, s, _), &ty::Ref(_, c, _) | &ty::RawPtr(TypeAndMut { ty: c, .. }))
-            | (&ty::RawPtr(TypeAndMut { ty: s, .. }), &ty::RawPtr(TypeAndMut { ty: c, .. })) => {
-                self.unsize_into_ptr(src, dest, *s, *c)
-            }
+            (&ty::Ref(_, s, _), &ty::Ref(_, c, _) | &ty::RawPtr(c, _))
+            | (&ty::RawPtr(s, _), &ty::RawPtr(c, _)) => self.unsize_into_ptr(src, dest, *s, *c),
             (&ty::Adt(def_a, _), &ty::Adt(def_b, _)) => {
                 assert_eq!(def_a, def_b); // implies same number of fields
 

compiler/rustc_const_eval/src/interpret/intrinsics.rs

@@ -79,7 +79,7 @@ pub(crate) fn eval_nullary_intrinsic<'tcx>(
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)

compiler/rustc_const_eval/src/interpret/terminator.rs

@@ -375,7 +375,7 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
             // We cannot use `builtin_deref` here since we need to reject `Box<T, MyAlloc>`.
             Ok(Some(match ty.kind() {
                 ty::Ref(_, ty, _) => *ty,
-                ty::RawPtr(mt) => mt.ty,
+                ty::RawPtr(ty, _) => *ty,
                 // We only accept `Box` with the default allocator.
                 _ if ty.is_box_global(*self.tcx) => ty.boxed_ty(),
                 _ => return Ok(None),

compiler/rustc_const_eval/src/util/type_name.rs

@@ -33,7 +33,7 @@ impl<'tcx> Printer<'tcx> for AbsolutePathPrinter<'tcx> {
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnPtr(_)
             | ty::Never

compiler/rustc_hir_analysis/src/check/check.rs

@@ -499,7 +499,7 @@ fn is_enum_of_nonnullable_ptr<'tcx>(
 fn check_static_linkage(tcx: TyCtxt<'_>, def_id: LocalDefId) {
     if tcx.codegen_fn_attrs(def_id).import_linkage.is_some() {
         if match tcx.type_of(def_id).instantiate_identity().kind() {
-            ty::RawPtr(_) => false,
+            ty::RawPtr(_, _) => false,
             ty::Adt(adt_def, args) => !is_enum_of_nonnullable_ptr(tcx, *adt_def, *args),
             _ => true,
         } {
@@ -934,10 +934,13 @@ pub fn check_simd(tcx: TyCtxt<'_>, sp: Span, def_id: LocalDefId) {
         // No: char, "fat" pointers, compound types
         match e.kind() {
             ty::Param(_) => (), // pass struct<T>(T, T, T, T) through, let monomorphization catch errors
-            ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::RawPtr(_) => (), // struct(u8, u8, u8, u8) is ok
+            ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::RawPtr(_, _) => (), // struct(u8, u8, u8, u8) is ok
             ty::Array(t, _) if matches!(t.kind(), ty::Param(_)) => (), // pass struct<T>([T; N]) through, let monomorphization catch errors
             ty::Array(t, _clen)
-                if matches!(t.kind(), ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::RawPtr(_)) =>
+                if matches!(
+                    t.kind(),
+                    ty::Int(_) | ty::Uint(_) | ty::Float(_) | ty::RawPtr(_, _)
+                ) =>
             { /* struct([f32; 4]) is ok */ }
             _ => {
                 struct_span_code_err!(

compiler/rustc_hir_analysis/src/check/intrinsic.rs

@@ -191,7 +191,7 @@ pub fn check_intrinsic_type(
                 ty::BoundRegion { var: ty::BoundVar::from_u32(2), kind: ty::BrEnv },
             );
             let va_list_ty = tcx.type_of(did).instantiate(tcx, &[region.into()]);
-            (Ty::new_ref(tcx, env_region, ty::TypeAndMut { ty: va_list_ty, mutbl }), va_list_ty)
+            (Ty::new_ref(tcx, env_region, va_list_ty, mutbl), va_list_ty)
         })
     };
 
@@ -240,15 +240,9 @@ pub fn check_intrinsic_type(
             sym::prefetch_read_data
             | sym::prefetch_write_data
             | sym::prefetch_read_instruction
-            | sym::prefetch_write_instruction => (
-                1,
-                0,
-                vec![
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Not }),
-                    tcx.types.i32,
-                ],
-                Ty::new_unit(tcx),
-            ),
+            | sym::prefetch_write_instruction => {
+                (1, 0, vec![Ty::new_imm_ptr(tcx, param(0)), tcx.types.i32], Ty::new_unit(tcx))
+            }
             sym::needs_drop => (1, 0, vec![], tcx.types.bool),
 
             sym::type_name => (1, 0, vec![], Ty::new_static_str(tcx)),
@@ -257,28 +251,22 @@ pub fn check_intrinsic_type(
             sym::arith_offset => (
                 1,
                 0,
-                vec![
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Not }),
-                    tcx.types.isize,
-                ],
-                Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Not }),
+                vec![Ty::new_imm_ptr(tcx, param(0)), tcx.types.isize],
+                Ty::new_imm_ptr(tcx, param(0)),
             ),
             sym::ptr_mask => (
                 1,
                 0,
-                vec![
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Not }),
-                    tcx.types.usize,
-                ],
-                Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Not }),
+                vec![Ty::new_imm_ptr(tcx, param(0)), tcx.types.usize],
+                Ty::new_imm_ptr(tcx, param(0)),
             ),
 
             sym::copy | sym::copy_nonoverlapping => (
                 1,
                 0,
                 vec![
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Not }),
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Mut }),
+                    Ty::new_imm_ptr(tcx, param(0)),
+                    Ty::new_mut_ptr(tcx, param(0)),
                     tcx.types.usize,
                 ],
                 Ty::new_unit(tcx),
@@ -287,8 +275,8 @@ pub fn check_intrinsic_type(
                 1,
                 0,
                 vec![
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Mut }),
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Not }),
+                    Ty::new_mut_ptr(tcx, param(0)),
+                    Ty::new_imm_ptr(tcx, param(0)),
                     tcx.types.usize,
                 ],
                 Ty::new_unit(tcx),
@@ -300,11 +288,7 @@ pub fn check_intrinsic_type(
             sym::write_bytes | sym::volatile_set_memory => (
                 1,
                 0,
-                vec![
-                    Ty::new_ptr(tcx, ty::TypeAndMut { ty: param(0), mutbl: hir::Mutability::Mut }),
-                    tcx.types.u8,
-                    tcx.types.usize,
-                ],
+                vec![Ty::new_mut_ptr(tcx, param(0)), tcx.types.u8, tcx.types.usize],
                 Ty::new_unit(tcx),
             ),
 

compiler/rustc_hir_analysis/src/check/intrinsicck.rs

@@ -62,9 +62,7 @@ impl<'a, 'tcx> InlineAsmCtxt<'a, 'tcx> {
             ty::Float(FloatTy::F32) => Some(InlineAsmType::F32),
             ty::Float(FloatTy::F64) => Some(InlineAsmType::F64),
             ty::FnPtr(_) => Some(asm_ty_isize),
-            ty::RawPtr(ty::TypeAndMut { ty, mutbl: _ }) if self.is_thin_ptr_ty(ty) => {
-                Some(asm_ty_isize)
-            }
+            ty::RawPtr(ty, _) if self.is_thin_ptr_ty(ty) => Some(asm_ty_isize),
             ty::Adt(adt, args) if adt.repr().simd() => {
                 let fields = &adt.non_enum_variant().fields;
                 let elem_ty = fields[FieldIdx::from_u32(0)].ty(self.tcx, args);

compiler/rustc_hir_analysis/src/check/wfcheck.rs

@@ -954,7 +954,7 @@ fn check_param_wf(tcx: TyCtxt<'_>, param: &hir::GenericParam<'_>) -> Result<(),
                         hir_ty.span,
                         "using function pointers as const generic parameters is forbidden",
                     ),
-                    ty::RawPtr(_) => tcx.dcx().struct_span_err(
+                    ty::RawPtr(_, _) => tcx.dcx().struct_span_err(
                         hir_ty.span,
                         "using raw pointers as const generic parameters is forbidden",
                     ),

compiler/rustc_hir_analysis/src/coherence/builtin.rs

@@ -195,7 +195,7 @@ fn visit_implementation_of_dispatch_from_dyn(checker: &Checker<'_>) -> Result<()
         {
             Ok(())
         }
-        (&RawPtr(tm_a), &RawPtr(tm_b)) if tm_a.mutbl == tm_b.mutbl => Ok(()),
+        (&RawPtr(_, a_mutbl), &RawPtr(_, b_mutbl)) if a_mutbl == b_mutbl => Ok(()),
         (&Adt(def_a, args_a), &Adt(def_b, args_b)) if def_a.is_struct() && def_b.is_struct() => {
             if def_a != def_b {
                 let source_path = tcx.def_path_str(def_a.did());
@@ -351,14 +351,17 @@ pub fn coerce_unsized_info<'tcx>(
             check_mutbl(mt_a, mt_b, &|ty| Ty::new_imm_ref(tcx, r_b, ty))
         }
 
-        (&ty::Ref(_, ty_a, mutbl_a), &ty::RawPtr(mt_b)) => {
-            let mt_a = ty::TypeAndMut { ty: ty_a, mutbl: mutbl_a };
-            check_mutbl(mt_a, mt_b, &|ty| Ty::new_imm_ptr(tcx, ty))
-        }
+        (&ty::Ref(_, ty_a, mutbl_a), &ty::RawPtr(ty_b, mutbl_b)) => check_mutbl(
+            ty::TypeAndMut { ty: ty_a, mutbl: mutbl_a },
+            ty::TypeAndMut { ty: ty_b, mutbl: mutbl_b },
+            &|ty| Ty::new_imm_ptr(tcx, ty),
+        ),
 
-        (&ty::RawPtr(mt_a), &ty::RawPtr(mt_b)) => {
-            check_mutbl(mt_a, mt_b, &|ty| Ty::new_imm_ptr(tcx, ty))
-        }
+        (&ty::RawPtr(ty_a, mutbl_a), &ty::RawPtr(ty_b, mutbl_b)) => check_mutbl(
+            ty::TypeAndMut { ty: ty_a, mutbl: mutbl_a },
+            ty::TypeAndMut { ty: ty_b, mutbl: mutbl_b },
+            &|ty| Ty::new_imm_ptr(tcx, ty),
+        ),
 
         (&ty::Adt(def_a, args_a), &ty::Adt(def_b, args_b))
             if def_a.is_struct() && def_b.is_struct() =>

compiler/rustc_hir_analysis/src/coherence/inherent_impls.rs

@@ -162,7 +162,7 @@ impl<'tcx> InherentCollect<'tcx> {
             | ty::Str
             | ty::Array(..)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(..)
             | ty::Never
             | ty::FnPtr(_)

compiler/rustc_hir_analysis/src/coherence/orphan.rs

@@ -323,7 +323,7 @@ fn emit_orphan_check_error<'tcx>(
                 let is_foreign =
                     !trait_ref.def_id.is_local() && matches!(is_target_ty, IsFirstInputType::No);
 
-                match &ty.kind() {
+                match *ty.kind() {
                     ty::Slice(_) => {
                         push_to_foreign_or_name(
                             is_foreign,
@@ -354,14 +354,14 @@ fn emit_orphan_check_error<'tcx>(
                     ty::Alias(ty::Opaque, ..) => {
                         opaque.push(errors::OnlyCurrentTraitsOpaque { span })
                     }
-                    ty::RawPtr(ptr_ty) => {
+                    ty::RawPtr(ptr_ty, mutbl) => {
                         if !self_ty.has_param() {
-                            let mut_key = ptr_ty.mutbl.prefix_str();
+                            let mut_key = mutbl.prefix_str();
                             sugg = Some(errors::OnlyCurrentTraitsPointerSugg {
                                 wrapper_span: self_ty_span,
                                 struct_span: full_impl_span.shrink_to_lo(),
                                 mut_key,
-                                ptr_ty: ptr_ty.ty,
+                                ptr_ty,
                             });
                         }
                         pointer.push(errors::OnlyCurrentTraitsPointer { span, pointer: ty });

compiler/rustc_hir_analysis/src/hir_ty_lowering/mod.rs

@@ -2299,14 +2299,12 @@ impl<'tcx> dyn HirTyLowerer<'tcx> + '_ {
                 self.lower_delegation_ty(*sig_id, *idx, hir_ty.span)
             }
             hir::TyKind::Slice(ty) => Ty::new_slice(tcx, self.lower_ty(ty)),
-            hir::TyKind::Ptr(mt) => {
-                Ty::new_ptr(tcx, ty::TypeAndMut { ty: self.lower_ty(mt.ty), mutbl: mt.mutbl })
-            }
+            hir::TyKind::Ptr(mt) => Ty::new_ptr(tcx, self.lower_ty(mt.ty), mt.mutbl),
             hir::TyKind::Ref(region, mt) => {
                 let r = self.lower_lifetime(region, None);
                 debug!(?r);
                 let t = self.lower_ty_common(mt.ty, true, false);
-                Ty::new_ref(tcx, r, ty::TypeAndMut { ty: t, mutbl: mt.mutbl })
+                Ty::new_ref(tcx, r, t, mt.mutbl)
             }
             hir::TyKind::Never => tcx.types.never,
             hir::TyKind::Tup(fields) => {

compiler/rustc_hir_analysis/src/variance/constraints.rs

@@ -253,8 +253,8 @@ impl<'a, 'tcx> ConstraintContext<'a, 'tcx> {
                 self.add_constraints_from_ty(current, typ, variance);
             }
 
-            ty::RawPtr(ref mt) => {
-                self.add_constraints_from_mt(current, mt, variance);
+            ty::RawPtr(ty, mutbl) => {
+                self.add_constraints_from_mt(current, &ty::TypeAndMut { ty, mutbl }, variance);
             }
 
             ty::Tuple(subtys) => {

compiler/rustc_hir_typeck/src/cast.rs

@@ -128,7 +128,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
             | ty::Float(_)
             | ty::Array(..)
             | ty::CoroutineWitness(..)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(..)
             | ty::FnDef(..)
             | ty::FnPtr(..)
@@ -332,13 +332,9 @@ impl<'a, 'tcx> CastCheck<'tcx> {
                 let mut sugg = None;
                 let mut sugg_mutref = false;
                 if let ty::Ref(reg, cast_ty, mutbl) = *self.cast_ty.kind() {
-                    if let ty::RawPtr(TypeAndMut { ty: expr_ty, .. }) = *self.expr_ty.kind()
+                    if let ty::RawPtr(expr_ty, _) = *self.expr_ty.kind()
                         && fcx.can_coerce(
-                            Ty::new_ref(
-                                fcx.tcx,
-                                fcx.tcx.lifetimes.re_erased,
-                                TypeAndMut { ty: expr_ty, mutbl },
-                            ),
+                            Ty::new_ref(fcx.tcx, fcx.tcx.lifetimes.re_erased, expr_ty, mutbl),
                             self.cast_ty,
                         )
                     {
@@ -346,14 +342,7 @@ impl<'a, 'tcx> CastCheck<'tcx> {
                     } else if let ty::Ref(expr_reg, expr_ty, expr_mutbl) = *self.expr_ty.kind()
                         && expr_mutbl == Mutability::Not
                         && mutbl == Mutability::Mut
-                        && fcx.can_coerce(
-                            Ty::new_ref(
-                                fcx.tcx,
-                                expr_reg,
-                                TypeAndMut { ty: expr_ty, mutbl: Mutability::Mut },
-                            ),
-                            self.cast_ty,
-                        )
+                        && fcx.can_coerce(Ty::new_mut_ref(fcx.tcx, expr_reg, expr_ty), self.cast_ty)
                     {
                         sugg_mutref = true;
                     }
@@ -361,19 +350,15 @@ impl<'a, 'tcx> CastCheck<'tcx> {
                     if !sugg_mutref
                         && sugg == None
                         && fcx.can_coerce(
-                            Ty::new_ref(fcx.tcx, reg, TypeAndMut { ty: self.expr_ty, mutbl }),
+                            Ty::new_ref(fcx.tcx, reg, self.expr_ty, mutbl),
                             self.cast_ty,
                         )
                     {
                         sugg = Some((format!("&{}", mutbl.prefix_str()), false));
                     }
-                } else if let ty::RawPtr(TypeAndMut { mutbl, .. }) = *self.cast_ty.kind()
+                } else if let ty::RawPtr(_, mutbl) = *self.cast_ty.kind()
                     && fcx.can_coerce(
-                        Ty::new_ref(
-                            fcx.tcx,
-                            fcx.tcx.lifetimes.re_erased,
-                            TypeAndMut { ty: self.expr_ty, mutbl },
-                        ),
+                        Ty::new_ref(fcx.tcx, fcx.tcx.lifetimes.re_erased, self.expr_ty, mutbl),
                         self.cast_ty,
                     )
                 {
@@ -868,7 +853,7 @@ impl<'a, 'tcx> CastCheck<'tcx> {
                 // from a region pointer to a vector.
 
                 // Coerce to a raw pointer so that we generate AddressOf in MIR.
-                let array_ptr_type = Ty::new_ptr(fcx.tcx, m_expr);
+                let array_ptr_type = Ty::new_ptr(fcx.tcx, m_expr.ty, m_expr.mutbl);
                 fcx.coerce(self.expr, self.expr_ty, array_ptr_type, AllowTwoPhase::No, None)
                     .unwrap_or_else(|_| {
                         bug!(

compiler/rustc_hir_typeck/src/coercion.rs

@@ -55,7 +55,7 @@ use rustc_middle::ty::adjustment::{
 use rustc_middle::ty::error::TypeError;
 use rustc_middle::ty::relate::RelateResult;
 use rustc_middle::ty::visit::TypeVisitableExt;
-use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt, TypeAndMut};
+use rustc_middle::ty::{self, GenericArgsRef, Ty, TyCtxt};
 use rustc_session::parse::feature_err;
 use rustc_span::symbol::sym;
 use rustc_span::DesugaringKind;
@@ -222,8 +222,8 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> {
 
         // Examine the supertype and consider auto-borrowing.
         match *b.kind() {
-            ty::RawPtr(mt_b) => {
-                return self.coerce_unsafe_ptr(a, b, mt_b.mutbl);
+            ty::RawPtr(_, b_mutbl) => {
+                return self.coerce_unsafe_ptr(a, b, b_mutbl);
             }
             ty::Ref(r_b, _, mutbl_b) => {
                 return self.coerce_borrowed_pointer(a, b, r_b, mutbl_b);
@@ -440,10 +440,8 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> {
             let derefd_ty_a = Ty::new_ref(
                 self.tcx,
                 r,
-                TypeAndMut {
-                    ty: referent_ty,
-                    mutbl: mutbl_b, // [1] above
-                },
+                referent_ty,
+                mutbl_b, // [1] above
             );
             match self.unify(derefd_ty_a, b) {
                 Ok(ok) => {
@@ -558,22 +556,18 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> {
                     Adjustment { kind: Adjust::Deref(None), target: ty_a },
                     Adjustment {
                         kind: Adjust::Borrow(AutoBorrow::Ref(r_borrow, mutbl)),
-                        target: Ty::new_ref(
-                            self.tcx,
-                            r_borrow,
-                            ty::TypeAndMut { mutbl: mutbl_b, ty: ty_a },
-                        ),
+                        target: Ty::new_ref(self.tcx, r_borrow, ty_a, mutbl_b),
                     },
                 ))
             }
-            (&ty::Ref(_, ty_a, mt_a), &ty::RawPtr(ty::TypeAndMut { mutbl: mt_b, .. })) => {
+            (&ty::Ref(_, ty_a, mt_a), &ty::RawPtr(_, mt_b)) => {
                 coerce_mutbls(mt_a, mt_b)?;
 
                 Some((
                     Adjustment { kind: Adjust::Deref(None), target: ty_a },
                     Adjustment {
                         kind: Adjust::Borrow(AutoBorrow::RawPtr(mt_b)),
-                        target: Ty::new_ptr(self.tcx, ty::TypeAndMut { mutbl: mt_b, ty: ty_a }),
+                        target: Ty::new_ptr(self.tcx, ty_a, mt_b),
                     },
                 ))
             }
@@ -984,13 +978,13 @@ impl<'f, 'tcx> Coerce<'f, 'tcx> {
 
         let (is_ref, mt_a) = match *a.kind() {
             ty::Ref(_, ty, mutbl) => (true, ty::TypeAndMut { ty, mutbl }),
-            ty::RawPtr(mt) => (false, mt),
+            ty::RawPtr(ty, mutbl) => (false, ty::TypeAndMut { ty, mutbl }),
             _ => return self.unify_and(a, b, identity),
         };
         coerce_mutbls(mt_a.mutbl, mutbl_b)?;
 
         // Check that the types which they point at are compatible.
-        let a_unsafe = Ty::new_ptr(self.tcx, ty::TypeAndMut { mutbl: mutbl_b, ty: mt_a.ty });
+        let a_unsafe = Ty::new_ptr(self.tcx, mt_a.ty, mutbl_b);
         // Although references and unsafe ptrs have the same
         // representation, we still register an Adjust::DerefRef so that
         // regionck knows that the region for `a` must be valid here.

compiler/rustc_hir_typeck/src/expr.rs

@@ -426,7 +426,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
     ) -> Ty<'tcx> {
         let hint = expected.only_has_type(self).map_or(NoExpectation, |ty| {
             match ty.kind() {
-                ty::Ref(_, ty, _) | ty::RawPtr(ty::TypeAndMut { ty, .. }) => {
+                ty::Ref(_, ty, _) | ty::RawPtr(ty, _) => {
                     if oprnd.is_syntactic_place_expr() {
                         // Places may legitimately have unsized types.
                         // For example, dereferences of a fat pointer and
@@ -442,12 +442,11 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         let ty =
             self.check_expr_with_expectation_and_needs(oprnd, hint, Needs::maybe_mut_place(mutbl));
 
-        let tm = ty::TypeAndMut { ty, mutbl };
         match kind {
-            _ if tm.ty.references_error() => Ty::new_misc_error(self.tcx),
+            _ if ty.references_error() => Ty::new_misc_error(self.tcx),
             hir::BorrowKind::Raw => {
                 self.check_named_place_expr(oprnd);
-                Ty::new_ptr(self.tcx, tm)
+                Ty::new_ptr(self.tcx, ty, mutbl)
             }
             hir::BorrowKind::Ref => {
                 // Note: at this point, we cannot say what the best lifetime
@@ -465,7 +464,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 // whose address was taken can actually be made to live as long
                 // as it needs to live.
                 let region = self.next_region_var(infer::AddrOfRegion(expr.span));
-                Ty::new_ref(self.tcx, region, tm)
+                Ty::new_ref(self.tcx, region, ty, mutbl)
             }
         }
     }
@@ -2686,8 +2685,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 expr,
                 Some(span),
             );
-        } else if let ty::RawPtr(ty_and_mut) = expr_t.kind()
-            && let ty::Adt(adt_def, _) = ty_and_mut.ty.kind()
+        } else if let ty::RawPtr(ptr_ty, _) = expr_t.kind()
+            && let ty::Adt(adt_def, _) = ptr_ty.kind()
             && let ExprKind::Field(base_expr, _) = expr.kind
             && adt_def.variants().len() == 1
             && adt_def
@@ -3225,7 +3224,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     self.demand_coerce(expr, ty, fnptr_ty, None, AllowTwoPhase::No);
                 }
                 ty::Ref(_, base_ty, mutbl) => {
-                    let ptr_ty = Ty::new_ptr(self.tcx, ty::TypeAndMut { ty: base_ty, mutbl });
+                    let ptr_ty = Ty::new_ptr(self.tcx, base_ty, mutbl);
                     self.demand_coerce(expr, ty, ptr_ty, None, AllowTwoPhase::No);
                 }
                 _ => {}

compiler/rustc_hir_typeck/src/fn_ctxt/checks.rs

@@ -1394,9 +1394,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         arg: &hir::Expr<'tcx>,
         err: &mut Diag<'tcx>,
     ) {
-        if let ty::RawPtr(ty::TypeAndMut { mutbl: hir::Mutability::Mut, .. }) = expected_ty.kind()
-            && let ty::RawPtr(ty::TypeAndMut { mutbl: hir::Mutability::Not, .. }) =
-                provided_ty.kind()
+        if let ty::RawPtr(_, hir::Mutability::Mut) = expected_ty.kind()
+            && let ty::RawPtr(_, hir::Mutability::Not) = provided_ty.kind()
             && let hir::ExprKind::Call(callee, _) = arg.kind
             && let hir::ExprKind::Path(hir::QPath::Resolved(_, path)) = callee.kind
             && let Res::Def(_, def_id) = path.res

compiler/rustc_hir_typeck/src/fn_ctxt/suggestions.rs

@@ -7,7 +7,6 @@ use crate::hir::is_range_literal;
 use crate::method::probe;
 use crate::method::probe::{IsSuggestion, Mode, ProbeScope};
 use crate::rustc_middle::ty::Article;
-use crate::ty::TypeAndMut;
 use core::cmp::min;
 use core::iter;
 use rustc_ast::util::parser::{ExprPrecedence, PREC_POSTFIX};
@@ -1479,7 +1478,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         expected_ty: Ty<'tcx>,
     ) -> bool {
         // Expected type needs to be a raw pointer.
-        let ty::RawPtr(ty::TypeAndMut { mutbl, .. }) = expected_ty.kind() else {
+        let ty::RawPtr(_, mutbl) = expected_ty.kind() else {
             return false;
         };
 
@@ -2509,11 +2508,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     return make_sugg(sp, expr.span.lo());
                 }
             }
-            (
-                _,
-                &ty::RawPtr(TypeAndMut { ty: ty_b, mutbl: mutbl_b }),
-                &ty::Ref(_, ty_a, mutbl_a),
-            ) => {
+            (_, &ty::RawPtr(ty_b, mutbl_b), &ty::Ref(_, ty_a, mutbl_a)) => {
                 if let Some(steps) = self.deref_steps(ty_a, ty_b)
                     // Only suggest valid if dereferencing needed.
                     && steps > 0

compiler/rustc_hir_typeck/src/mem_categorization.rs

@@ -268,11 +268,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
             adjustment::Adjust::Deref(overloaded) => {
                 // Equivalent to *expr or something similar.
                 let base = if let Some(deref) = overloaded {
-                    let ref_ty = Ty::new_ref(
-                        self.tcx(),
-                        deref.region,
-                        ty::TypeAndMut { ty: target, mutbl: deref.mutbl },
-                    );
+                    let ref_ty = Ty::new_ref(self.tcx(), deref.region, target, deref.mutbl);
                     self.cat_rvalue(expr.hir_id, ref_ty)
                 } else {
                     previous()?
@@ -479,7 +475,7 @@ impl<'a, 'tcx> MemCategorizationContext<'a, 'tcx> {
         let ty::Ref(region, _, mutbl) = *base_ty.kind() else {
             span_bug!(expr.span, "cat_overloaded_place: base is not a reference");
         };
-        let ref_ty = Ty::new_ref(self.tcx(), region, ty::TypeAndMut { ty: place_ty, mutbl });
+        let ref_ty = Ty::new_ref(self.tcx(), region, place_ty, mutbl);
 
         let base = self.cat_rvalue(expr.hir_id, ref_ty);
         self.cat_deref(expr, base)

compiler/rustc_hir_typeck/src/method/confirm.rs

@@ -188,7 +188,7 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
                 // Type we're wrapping in a reference, used later for unsizing
                 let base_ty = target;
 
-                target = Ty::new_ref(self.tcx, region, ty::TypeAndMut { mutbl, ty: target });
+                target = Ty::new_ref(self.tcx, region, target, mutbl);
 
                 // Method call receivers are the primary use case
                 // for two-phase borrows.
@@ -208,11 +208,7 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
                             base_ty
                         )
                     };
-                    target = Ty::new_ref(
-                        self.tcx,
-                        region,
-                        ty::TypeAndMut { mutbl: mutbl.into(), ty: unsized_ty },
-                    );
+                    target = Ty::new_ref(self.tcx, region, unsized_ty, mutbl.into());
                     adjustments.push(Adjustment {
                         kind: Adjust::Pointer(PointerCoercion::Unsize),
                         target,
@@ -221,9 +217,9 @@ impl<'a, 'tcx> ConfirmContext<'a, 'tcx> {
             }
             Some(probe::AutorefOrPtrAdjustment::ToConstPtr) => {
                 target = match target.kind() {
-                    &ty::RawPtr(ty::TypeAndMut { ty, mutbl }) => {
+                    &ty::RawPtr(ty, mutbl) => {
                         assert!(mutbl.is_mut());
-                        Ty::new_ptr(self.tcx, ty::TypeAndMut { mutbl: hir::Mutability::Not, ty })
+                        Ty::new_imm_ptr(self.tcx, ty)
                     }
                     other => panic!("Cannot adjust receiver type {other:?} to const ptr"),
                 };

compiler/rustc_hir_typeck/src/method/mod.rs

@@ -200,11 +200,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         if let Some(span) = result.illegal_sized_bound {
             let mut needs_mut = false;
             if let ty::Ref(region, t_type, mutability) = self_ty.kind() {
-                let trait_type = Ty::new_ref(
-                    self.tcx,
-                    *region,
-                    ty::TypeAndMut { ty: *t_type, mutbl: mutability.invert() },
-                );
+                let trait_type = Ty::new_ref(self.tcx, *region, *t_type, mutability.invert());
                 // We probe again to see if there might be a borrow mutability discrepancy.
                 match self.lookup_probe(
                     segment.ident,

compiler/rustc_hir_typeck/src/method/probe.rs

@@ -528,7 +528,7 @@ fn method_autoderef_steps<'tcx>(
                 from_unsafe_deref: reached_raw_pointer,
                 unsize: false,
             };
-            if let ty::RawPtr(_) = ty.kind() {
+            if let ty::RawPtr(_, _) = ty.kind() {
                 // all the subsequent steps will be from_unsafe_deref
                 reached_raw_pointer = true;
             }
@@ -696,7 +696,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> {
             | ty::Str
             | ty::Array(..)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(..)
             | ty::Never
             | ty::Tuple(..) => self.assemble_inherent_candidates_for_incoherent_ty(raw_self_ty),
@@ -1213,7 +1213,7 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> {
         // In general, during probing we erase regions.
         let region = tcx.lifetimes.re_erased;
 
-        let autoref_ty = Ty::new_ref(tcx, region, ty::TypeAndMut { ty: self_ty, mutbl });
+        let autoref_ty = Ty::new_ref(tcx, region, self_ty, mutbl);
         self.pick_method(autoref_ty, unstable_candidates).map(|r| {
             r.map(|mut pick| {
                 pick.autoderefs = step.autoderefs;
@@ -1238,12 +1238,11 @@ impl<'a, 'tcx> ProbeContext<'a, 'tcx> {
             return None;
         }
 
-        let &ty::RawPtr(ty::TypeAndMut { ty, mutbl: hir::Mutability::Mut }) = self_ty.kind() else {
+        let &ty::RawPtr(ty, hir::Mutability::Mut) = self_ty.kind() else {
             return None;
         };
 
-        let const_self_ty = ty::TypeAndMut { ty, mutbl: hir::Mutability::Not };
-        let const_ptr_ty = Ty::new_ptr(self.tcx, const_self_ty);
+        let const_ptr_ty = Ty::new_imm_ptr(self.tcx, ty);
         self.pick_method(const_ptr_ty, unstable_candidates).map(|r| {
             r.map(|mut pick| {
                 pick.autoderefs = step.autoderefs;

compiler/rustc_hir_typeck/src/method/suggest.rs

@@ -304,11 +304,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 }
                 if let ty::Ref(region, t_type, mutability) = rcvr_ty.kind() {
                     if needs_mut {
-                        let trait_type = Ty::new_ref(
-                            self.tcx,
-                            *region,
-                            ty::TypeAndMut { ty: *t_type, mutbl: mutability.invert() },
-                        );
+                        let trait_type =
+                            Ty::new_ref(self.tcx, *region, *t_type, mutability.invert());
                         let msg = format!("you need `{trait_type}` instead of `{rcvr_ty}`");
                         let mut kind = &self_expr.kind;
                         while let hir::ExprKind::AddrOf(_, _, expr)
@@ -533,7 +530,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 Applicability::MachineApplicable,
             );
         }
-        if let ty::RawPtr(_) = &rcvr_ty.kind() {
+        if let ty::RawPtr(_, _) = &rcvr_ty.kind() {
             err.note(
                 "try using `<*const T>::as_ref()` to get a reference to the \
                  type behind the pointer: https://doc.rust-lang.org/std/\

compiler/rustc_hir_typeck/src/op.rs

@@ -508,11 +508,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         suggest_deref_binop(&mut err, *lhs_deref_ty);
                     } else {
                         let lhs_inv_mutbl = mutbl.invert();
-                        let lhs_inv_mutbl_ty = Ty::new_ref(
-                            self.tcx,
-                            *region,
-                            ty::TypeAndMut { ty: *lhs_deref_ty, mutbl: lhs_inv_mutbl },
-                        );
+                        let lhs_inv_mutbl_ty =
+                            Ty::new_ref(self.tcx, *region, *lhs_deref_ty, lhs_inv_mutbl);
 
                         suggest_different_borrow(
                             &mut err,
@@ -524,11 +521,8 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
 
                         if let Ref(region, rhs_deref_ty, mutbl) = rhs_ty.kind() {
                             let rhs_inv_mutbl = mutbl.invert();
-                            let rhs_inv_mutbl_ty = Ty::new_ref(
-                                self.tcx,
-                                *region,
-                                ty::TypeAndMut { ty: *rhs_deref_ty, mutbl: rhs_inv_mutbl },
-                            );
+                            let rhs_inv_mutbl_ty =
+                                Ty::new_ref(self.tcx, *region, *rhs_deref_ty, rhs_inv_mutbl);
 
                             suggest_different_borrow(
                                 &mut err,

compiler/rustc_hir_typeck/src/pat.rs

@@ -2057,8 +2057,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
     /// Create a reference type with a fresh region variable.
     fn new_ref_ty(&self, span: Span, mutbl: hir::Mutability, ty: Ty<'tcx>) -> Ty<'tcx> {
         let region = self.next_region_var(infer::PatternRegion(span));
-        let mt = ty::TypeAndMut { ty, mutbl };
-        Ty::new_ref(self.tcx, region, mt)
+        Ty::new_ref(self.tcx, region, ty, mutbl)
     }
 
     fn try_resolve_slice_ty_to_array_ty(

compiler/rustc_hir_typeck/src/place_op.rs

@@ -162,11 +162,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                 if let ty::Ref(region, _, hir::Mutability::Not) = method.sig.inputs()[0].kind() {
                     adjustments.push(Adjustment {
                         kind: Adjust::Borrow(AutoBorrow::Ref(*region, AutoBorrowMutability::Not)),
-                        target: Ty::new_ref(
-                            self.tcx,
-                            *region,
-                            ty::TypeAndMut { mutbl: hir::Mutability::Not, ty: adjusted_ty },
-                        ),
+                        target: Ty::new_imm_ref(self.tcx, *region, adjusted_ty),
                     });
                 } else {
                     span_bug!(expr.span, "input to index is not a ref?");
@@ -400,11 +396,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         allow_two_phase_borrow: AllowTwoPhase::No,
                     };
                     adjustment.kind = Adjust::Borrow(AutoBorrow::Ref(*region, mutbl));
-                    adjustment.target = Ty::new_ref(
-                        self.tcx,
-                        *region,
-                        ty::TypeAndMut { ty: source, mutbl: mutbl.into() },
-                    );
+                    adjustment.target = Ty::new_ref(self.tcx, *region, source, mutbl.into());
                 }
                 source = adjustment.target;
             }

compiler/rustc_hir_typeck/src/upvar.rs

@@ -1719,7 +1719,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
         for pointer_ty in place.deref_tys() {
             match pointer_ty.kind() {
                 // We don't capture derefs of raw ptrs
-                ty::RawPtr(_) => unreachable!(),
+                ty::RawPtr(_, _) => unreachable!(),
 
                 // Dereferencing a mut-ref allows us to mut the Place if we don't deref
                 // an immut-ref after on top of this.
@@ -1780,11 +1780,9 @@ fn apply_capture_kind_on_capture_ty<'tcx>(
 ) -> Ty<'tcx> {
     match capture_kind {
         ty::UpvarCapture::ByValue => ty,
-        ty::UpvarCapture::ByRef(kind) => Ty::new_ref(
-            tcx,
-            region.unwrap(),
-            ty::TypeAndMut { ty: ty, mutbl: kind.to_mutbl_lossy() },
-        ),
+        ty::UpvarCapture::ByRef(kind) => {
+            Ty::new_ref(tcx, region.unwrap(), ty, kind.to_mutbl_lossy())
+        }
     }
 }
 

compiler/rustc_lint/src/builtin.rs

@@ -2477,7 +2477,7 @@ impl<'tcx> LateLintPass<'tcx> for InvalidValue {
                 Adt(..) if ty.is_box() => Some("`Box` must be non-null".into()),
                 FnPtr(..) => Some("function pointers must be non-null".into()),
                 Never => Some("the `!` type has no valid value".into()),
-                RawPtr(tm) if matches!(tm.ty.kind(), Dynamic(..)) =>
+                RawPtr(ty, _) if matches!(ty.kind(), Dynamic(..)) =>
                 // raw ptr to dyn Trait
                 {
                     Some("the vtable of a wide raw pointer must be non-null".into())
@@ -2493,7 +2493,7 @@ impl<'tcx> LateLintPass<'tcx> for InvalidValue {
                     Some("integers must be initialized".into())
                 }
                 Float(_) if init == InitKind::Uninit => Some("floats must be initialized".into()),
-                RawPtr(_) if init == InitKind::Uninit => {
+                RawPtr(_, _) if init == InitKind::Uninit => {
                     Some("raw pointers must be initialized".into())
                 }
                 // Recurse and checks for some compound types. (but not unions)

compiler/rustc_lint/src/foreign_modules.rs

@@ -322,10 +322,10 @@ fn structurally_same_type_impl<'tcx>(
                 (Slice(a_ty), Slice(b_ty)) => {
                     structurally_same_type_impl(seen_types, tcx, param_env, *a_ty, *b_ty, ckind)
                 }
-                (RawPtr(a_tymut), RawPtr(b_tymut)) => {
-                    a_tymut.mutbl == b_tymut.mutbl
+                (RawPtr(a_ty, a_mutbl), RawPtr(b_ty, b_mutbl)) => {
+                    a_mutbl == b_mutbl
                         && structurally_same_type_impl(
-                            seen_types, tcx, param_env, a_tymut.ty, b_tymut.ty, ckind,
+                            seen_types, tcx, param_env, *a_ty, *b_ty, ckind,
                         )
                 }
                 (Ref(_a_region, a_ty, a_mut), Ref(_b_region, b_ty, b_mut)) => {

compiler/rustc_lint/src/reference_casting.rs

@@ -1,7 +1,7 @@
 use rustc_ast::Mutability;
 use rustc_hir::{Expr, ExprKind, UnOp};
 use rustc_middle::ty::layout::LayoutOf as _;
-use rustc_middle::ty::{self, layout::TyAndLayout, TypeAndMut};
+use rustc_middle::ty::{self, layout::TyAndLayout};
 use rustc_span::sym;
 
 use crate::{lints::InvalidReferenceCastingDiag, LateContext, LateLintPass, LintContext};
@@ -153,7 +153,7 @@ fn is_cast_from_ref_to_mut_ptr<'tcx>(
     let end_ty = cx.typeck_results().node_type(orig_expr.hir_id);
 
     // Bail out early if the end type is **not** a mutable pointer.
-    if !matches!(end_ty.kind(), ty::RawPtr(TypeAndMut { ty: _, mutbl: Mutability::Mut })) {
+    if !matches!(end_ty.kind(), ty::RawPtr(_, Mutability::Mut)) {
         return None;
     }
 
@@ -183,7 +183,7 @@ fn is_cast_to_bigger_memory_layout<'tcx>(
 ) -> Option<(TyAndLayout<'tcx>, TyAndLayout<'tcx>, Expr<'tcx>)> {
     let end_ty = cx.typeck_results().node_type(orig_expr.hir_id);
 
-    let ty::RawPtr(TypeAndMut { ty: inner_end_ty, mutbl: _ }) = end_ty.kind() else {
+    let ty::RawPtr(inner_end_ty, _) = end_ty.kind() else {
         return None;
     };
 

compiler/rustc_lint/src/types.rs

@@ -18,10 +18,10 @@ use rustc_errors::DiagMessage;
 use rustc_hir as hir;
 use rustc_hir::{is_range_literal, Expr, ExprKind, Node};
 use rustc_middle::ty::layout::{IntegerExt, LayoutOf, SizeSkeleton};
+use rustc_middle::ty::GenericArgsRef;
 use rustc_middle::ty::{
     self, AdtKind, Ty, TyCtxt, TypeSuperVisitable, TypeVisitable, TypeVisitableExt,
 };
-use rustc_middle::ty::{GenericArgsRef, TypeAndMut};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map;
 use rustc_span::symbol::sym;
@@ -673,7 +673,7 @@ fn lint_wide_pointer<'tcx>(
             refs += 1;
         }
         match ty.kind() {
-            ty::RawPtr(TypeAndMut { mutbl: _, ty }) => (!ty.is_sized(cx.tcx, cx.param_env))
+            ty::RawPtr(ty, _) => (!ty.is_sized(cx.tcx, cx.param_env))
                 .then(|| (refs, matches!(ty.kind(), ty::Dynamic(_, _, ty::Dyn)))),
             _ => None,
         }
@@ -1046,10 +1046,10 @@ fn get_nullable_type<'tcx>(
         }
         ty::Int(ty) => Ty::new_int(tcx, ty),
         ty::Uint(ty) => Ty::new_uint(tcx, ty),
-        ty::RawPtr(ty_mut) => Ty::new_ptr(tcx, ty_mut),
+        ty::RawPtr(ty, mutbl) => Ty::new_ptr(tcx, ty, mutbl),
         // As these types are always non-null, the nullable equivalent of
         // `Option<T>` of these types are their raw pointer counterparts.
-        ty::Ref(_region, ty, mutbl) => Ty::new_ptr(tcx, ty::TypeAndMut { ty, mutbl }),
+        ty::Ref(_region, ty, mutbl) => Ty::new_ptr(tcx, ty, mutbl),
         // There is no nullable equivalent for Rust's function pointers,
         // you must use an `Option<fn(..) -> _>` to represent it.
         ty::FnPtr(..) => ty,
@@ -1374,7 +1374,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
                 help: Some(fluent::lint_improper_ctypes_tuple_help),
             },
 
-            ty::RawPtr(ty::TypeAndMut { ty, .. }) | ty::Ref(_, ty, _)
+            ty::RawPtr(ty, _) | ty::Ref(_, ty, _)
                 if {
                     matches!(self.mode, CItemKind::Definition)
                         && ty.is_sized(self.cx.tcx, self.cx.param_env)
@@ -1383,7 +1383,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
                 FfiSafe
             }
 
-            ty::RawPtr(ty::TypeAndMut { ty, .. })
+            ty::RawPtr(ty, _)
                 if match ty.kind() {
                     ty::Tuple(tuple) => tuple.is_empty(),
                     _ => false,
@@ -1392,9 +1392,7 @@ impl<'a, 'tcx> ImproperCTypesVisitor<'a, 'tcx> {
                 FfiSafe
             }
 
-            ty::RawPtr(ty::TypeAndMut { ty, .. }) | ty::Ref(_, ty, _) => {
-                self.check_type_for_ffi(cache, ty)
-            }
+            ty::RawPtr(ty, _) | ty::Ref(_, ty, _) => self.check_type_for_ffi(cache, ty),
 
             ty::Array(inner_ty, _) => self.check_type_for_ffi(cache, inner_ty),
 

compiler/rustc_middle/src/mir/tcx.rs

@@ -170,11 +170,11 @@ impl<'tcx> Rvalue<'tcx> {
             Rvalue::ThreadLocalRef(did) => tcx.thread_local_ptr_ty(did),
             Rvalue::Ref(reg, bk, ref place) => {
                 let place_ty = place.ty(local_decls, tcx).ty;
-                Ty::new_ref(tcx, reg, ty::TypeAndMut { ty: place_ty, mutbl: bk.to_mutbl_lossy() })
+                Ty::new_ref(tcx, reg, place_ty, bk.to_mutbl_lossy())
             }
             Rvalue::AddressOf(mutability, ref place) => {
                 let place_ty = place.ty(local_decls, tcx).ty;
-                Ty::new_ptr(tcx, ty::TypeAndMut { ty: place_ty, mutbl: mutability })
+                Ty::new_ptr(tcx, place_ty, mutability)
             }
             Rvalue::Len(..) => tcx.types.usize,
             Rvalue::Cast(.., ty) => ty,

compiler/rustc_middle/src/ty/cast.rs

@@ -69,7 +69,7 @@ impl<'tcx> CastTy<'tcx> {
             ty::Uint(u) => Some(CastTy::Int(IntTy::U(u))),
             ty::Float(_) => Some(CastTy::Float),
             ty::Adt(d, _) if d.is_enum() && d.is_payloadfree() => Some(CastTy::Int(IntTy::CEnum)),
-            ty::RawPtr(mt) => Some(CastTy::Ptr(mt)),
+            ty::RawPtr(ty, mutbl) => Some(CastTy::Ptr(ty::TypeAndMut { ty, mutbl })),
             ty::FnPtr(..) => Some(CastTy::FnPtr),
             ty::Dynamic(_, _, ty::DynStar) => Some(CastTy::DynStar),
             _ => None,

compiler/rustc_middle/src/ty/error.rs

@@ -286,7 +286,7 @@ impl<'tcx> Ty<'tcx> {
             ty::Foreign(_) => "extern type".into(),
             ty::Array(..) => "array".into(),
             ty::Slice(_) => "slice".into(),
-            ty::RawPtr(_) => "raw pointer".into(),
+            ty::RawPtr(_, _) => "raw pointer".into(),
             ty::Ref(.., mutbl) => match mutbl {
                 hir::Mutability::Mut => "mutable reference",
                 _ => "reference",

compiler/rustc_middle/src/ty/fast_reject.rs

@@ -120,7 +120,7 @@ pub fn simplify_type<'tcx>(
         ty::Str => Some(SimplifiedType::Str),
         ty::Array(..) => Some(SimplifiedType::Array),
         ty::Slice(..) => Some(SimplifiedType::Slice),
-        ty::RawPtr(ptr) => Some(SimplifiedType::Ptr(ptr.mutbl)),
+        ty::RawPtr(_, mutbl) => Some(SimplifiedType::Ptr(mutbl)),
         ty::Dynamic(trait_info, ..) => match trait_info.principal_def_id() {
             Some(principal_def_id) if !tcx.trait_is_auto(principal_def_id) => {
                 Some(SimplifiedType::Trait(principal_def_id))
@@ -286,8 +286,10 @@ impl DeepRejectCtxt {
                 }
                 _ => false,
             },
-            ty::RawPtr(obl) => match k {
-                ty::RawPtr(imp) => obl.mutbl == imp.mutbl && self.types_may_unify(obl.ty, imp.ty),
+            ty::RawPtr(obl_ty, obl_mutbl) => match *k {
+                ty::RawPtr(imp_ty, imp_mutbl) => {
+                    obl_mutbl == imp_mutbl && self.types_may_unify(obl_ty, imp_ty)
+                }
                 _ => false,
             },
             ty::Dynamic(obl_preds, ..) => {

compiler/rustc_middle/src/ty/flags.rs

@@ -211,8 +211,8 @@ impl FlagComputation {
 
             &ty::Slice(tt) => self.add_ty(tt),
 
-            ty::RawPtr(m) => {
-                self.add_ty(m.ty);
+            &ty::RawPtr(ty, _) => {
+                self.add_ty(ty);
             }
 
             &ty::Ref(r, ty, _) => {

compiler/rustc_middle/src/ty/layout.rs

@@ -328,7 +328,7 @@ impl<'tcx> SizeSkeleton<'tcx> {
         };
 
         match *ty.kind() {
-            ty::Ref(_, pointee, _) | ty::RawPtr(ty::TypeAndMut { ty: pointee, .. }) => {
+            ty::Ref(_, pointee, _) | ty::RawPtr(pointee, _) => {
                 let non_zero = !ty.is_unsafe_ptr();
                 let tail = tcx.struct_tail_erasing_lifetimes(pointee, param_env);
                 match tail.kind() {
@@ -742,7 +742,7 @@ where
                 }
 
                 // Potentially-fat pointers.
-                ty::Ref(_, pointee, _) | ty::RawPtr(ty::TypeAndMut { ty: pointee, .. }) => {
+                ty::Ref(_, pointee, _) | ty::RawPtr(pointee, _) => {
                     assert!(i < this.fields.count());
 
                     // Reuse the fat `*T` type as its own thin pointer data field.
@@ -920,8 +920,8 @@ where
         let param_env = cx.param_env();
 
         let pointee_info = match *this.ty.kind() {
-            ty::RawPtr(mt) if offset.bytes() == 0 => {
-                tcx.layout_of(param_env.and(mt.ty)).ok().map(|layout| PointeeInfo {
+            ty::RawPtr(p_ty, _) if offset.bytes() == 0 => {
+                tcx.layout_of(param_env.and(p_ty)).ok().map(|layout| PointeeInfo {
                     size: layout.size,
                     align: layout.align.abi,
                     safe: None,

compiler/rustc_middle/src/ty/print/mod.rs

@@ -263,7 +263,7 @@ fn characteristic_def_id_of_type_cached<'a>(
             characteristic_def_id_of_type_cached(subty, visited)
         }
 
-        ty::RawPtr(mt) => characteristic_def_id_of_type_cached(mt.ty, visited),
+        ty::RawPtr(ty, _) => characteristic_def_id_of_type_cached(ty, visited),
 
         ty::Ref(_, ty, _) => characteristic_def_id_of_type_cached(ty, visited),
 

compiler/rustc_middle/src/ty/print/pretty.rs

@@ -667,15 +667,15 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write {
             ty::Int(t) => p!(write("{}", t.name_str())),
             ty::Uint(t) => p!(write("{}", t.name_str())),
             ty::Float(t) => p!(write("{}", t.name_str())),
-            ty::RawPtr(ref tm) => {
+            ty::RawPtr(ty, mutbl) => {
                 p!(write(
                     "*{} ",
-                    match tm.mutbl {
+                    match mutbl {
                         hir::Mutability::Mut => "mut",
                         hir::Mutability::Not => "const",
                     }
                 ));
-                p!(print(tm.ty))
+                p!(print(ty))
             }
             ty::Ref(r, ty, mutbl) => {
                 p!("&");
@@ -1752,7 +1752,7 @@ pub trait PrettyPrinter<'tcx>: Printer<'tcx> + fmt::Write {
                 p!(write("{:?}", char::try_from(int).unwrap()))
             }
             // Pointer types
-            ty::Ref(..) | ty::RawPtr(_) | ty::FnPtr(_) => {
+            ty::Ref(..) | ty::RawPtr(_, _) | ty::FnPtr(_) => {
                 let data = int.assert_bits(self.tcx().data_layout.pointer_size);
                 self.typed_value(
                     |this| {

compiler/rustc_middle/src/ty/relate.rs

@@ -94,28 +94,6 @@ pub trait Relate<'tcx>: TypeFoldable<TyCtxt<'tcx>> + PartialEq + Copy {
 ///////////////////////////////////////////////////////////////////////////
 // Relate impls
 
-pub fn relate_type_and_mut<'tcx, R: TypeRelation<'tcx>>(
-    relation: &mut R,
-    a: ty::TypeAndMut<'tcx>,
-    b: ty::TypeAndMut<'tcx>,
-    base_ty: Ty<'tcx>,
-) -> RelateResult<'tcx, ty::TypeAndMut<'tcx>> {
-    debug!("{}.mts({:?}, {:?})", relation.tag(), a, b);
-    if a.mutbl != b.mutbl {
-        Err(TypeError::Mutability)
-    } else {
-        let mutbl = a.mutbl;
-        let (variance, info) = match mutbl {
-            hir::Mutability::Not => (ty::Covariant, ty::VarianceDiagInfo::None),
-            hir::Mutability::Mut => {
-                (ty::Invariant, ty::VarianceDiagInfo::Invariant { ty: base_ty, param_index: 0 })
-            }
-        };
-        let ty = relation.relate_with_variance(variance, info, a.ty, b.ty)?;
-        Ok(ty::TypeAndMut { ty, mutbl })
-    }
-}
-
 #[inline]
 pub fn relate_args_invariantly<'tcx, R: TypeRelation<'tcx>>(
     relation: &mut R,
@@ -465,17 +443,39 @@ pub fn structurally_relate_tys<'tcx, R: TypeRelation<'tcx>>(
             Ok(Ty::new_coroutine_closure(tcx, a_id, args))
         }
 
-        (&ty::RawPtr(a_mt), &ty::RawPtr(b_mt)) => {
-            let mt = relate_type_and_mut(relation, a_mt, b_mt, a)?;
-            Ok(Ty::new_ptr(tcx, mt))
+        (&ty::RawPtr(a_ty, a_mutbl), &ty::RawPtr(b_ty, b_mutbl)) => {
+            if a_mutbl != b_mutbl {
+                return Err(TypeError::Mutability);
+            }
+
+            let (variance, info) = match a_mutbl {
+                hir::Mutability::Not => (ty::Covariant, ty::VarianceDiagInfo::None),
+                hir::Mutability::Mut => {
+                    (ty::Invariant, ty::VarianceDiagInfo::Invariant { ty: a, param_index: 0 })
+                }
+            };
+
+            let ty = relation.relate_with_variance(variance, info, a_ty, b_ty)?;
+
+            Ok(Ty::new_ptr(tcx, ty, a_mutbl))
         }
 
         (&ty::Ref(a_r, a_ty, a_mutbl), &ty::Ref(b_r, b_ty, b_mutbl)) => {
+            if a_mutbl != b_mutbl {
+                return Err(TypeError::Mutability);
+            }
+
+            let (variance, info) = match a_mutbl {
+                hir::Mutability::Not => (ty::Covariant, ty::VarianceDiagInfo::None),
+                hir::Mutability::Mut => {
+                    (ty::Invariant, ty::VarianceDiagInfo::Invariant { ty: a, param_index: 0 })
+                }
+            };
+
             let r = relation.relate(a_r, b_r)?;
-            let a_mt = ty::TypeAndMut { ty: a_ty, mutbl: a_mutbl };
-            let b_mt = ty::TypeAndMut { ty: b_ty, mutbl: b_mutbl };
-            let mt = relate_type_and_mut(relation, a_mt, b_mt, a)?;
-            Ok(Ty::new_ref(tcx, r, mt))
+            let ty = relation.relate_with_variance(variance, info, a_ty, b_ty)?;
+
+            Ok(Ty::new_ref(tcx, r, ty, a_mutbl))
         }
 
         (&ty::Array(a_t, sz_a), &ty::Array(b_t, sz_b)) => {

compiler/rustc_middle/src/ty/structural_impls.rs

@@ -560,7 +560,7 @@ impl<'tcx> TypeSuperFoldable<TyCtxt<'tcx>> for Ty<'tcx> {
         folder: &mut F,
     ) -> Result<Self, F::Error> {
         let kind = match *self.kind() {
-            ty::RawPtr(tm) => ty::RawPtr(tm.try_fold_with(folder)?),
+            ty::RawPtr(ty, mutbl) => ty::RawPtr(ty.try_fold_with(folder)?, mutbl),
             ty::Array(typ, sz) => ty::Array(typ.try_fold_with(folder)?, sz.try_fold_with(folder)?),
             ty::Slice(typ) => ty::Slice(typ.try_fold_with(folder)?),
             ty::Adt(tid, args) => ty::Adt(tid, args.try_fold_with(folder)?),
@@ -607,7 +607,7 @@ impl<'tcx> TypeSuperFoldable<TyCtxt<'tcx>> for Ty<'tcx> {
 impl<'tcx> TypeSuperVisitable<TyCtxt<'tcx>> for Ty<'tcx> {
     fn super_visit_with<V: TypeVisitor<TyCtxt<'tcx>>>(&self, visitor: &mut V) -> V::Result {
         match self.kind() {
-            ty::RawPtr(ref tm) => tm.visit_with(visitor),
+            ty::RawPtr(ty, _mutbl) => ty.visit_with(visitor),
             ty::Array(typ, sz) => {
                 try_visit!(typ.visit_with(visitor));
                 sz.visit_with(visitor)

compiler/rustc_middle/src/ty/sty.rs

@@ -1587,33 +1587,38 @@ impl<'tcx> Ty<'tcx> {
     }
 
     #[inline]
-    pub fn new_ref(tcx: TyCtxt<'tcx>, r: Region<'tcx>, tm: TypeAndMut<'tcx>) -> Ty<'tcx> {
-        Ty::new(tcx, Ref(r, tm.ty, tm.mutbl))
+    pub fn new_ref(
+        tcx: TyCtxt<'tcx>,
+        r: Region<'tcx>,
+        ty: Ty<'tcx>,
+        mutbl: ty::Mutability,
+    ) -> Ty<'tcx> {
+        Ty::new(tcx, Ref(r, ty, mutbl))
     }
 
     #[inline]
     pub fn new_mut_ref(tcx: TyCtxt<'tcx>, r: Region<'tcx>, ty: Ty<'tcx>) -> Ty<'tcx> {
-        Ty::new_ref(tcx, r, TypeAndMut { ty, mutbl: hir::Mutability::Mut })
+        Ty::new_ref(tcx, r, ty, hir::Mutability::Mut)
     }
 
     #[inline]
     pub fn new_imm_ref(tcx: TyCtxt<'tcx>, r: Region<'tcx>, ty: Ty<'tcx>) -> Ty<'tcx> {
-        Ty::new_ref(tcx, r, TypeAndMut { ty, mutbl: hir::Mutability::Not })
+        Ty::new_ref(tcx, r, ty, hir::Mutability::Not)
     }
 
     #[inline]
-    pub fn new_ptr(tcx: TyCtxt<'tcx>, tm: TypeAndMut<'tcx>) -> Ty<'tcx> {
-        Ty::new(tcx, RawPtr(tm))
+    pub fn new_ptr(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, mutbl: ty::Mutability) -> Ty<'tcx> {
+        Ty::new(tcx, ty::RawPtr(ty, mutbl))
     }
 
     #[inline]
     pub fn new_mut_ptr(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Ty<'tcx> {
-        Ty::new_ptr(tcx, TypeAndMut { ty, mutbl: hir::Mutability::Mut })
+        Ty::new_ptr(tcx, ty, hir::Mutability::Mut)
     }
 
     #[inline]
     pub fn new_imm_ptr(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> Ty<'tcx> {
-        Ty::new_ptr(tcx, TypeAndMut { ty, mutbl: hir::Mutability::Not })
+        Ty::new_ptr(tcx, ty, hir::Mutability::Not)
     }
 
     #[inline]
@@ -1910,7 +1915,7 @@ impl<'tcx> Ty<'tcx> {
     pub fn is_array_slice(self) -> bool {
         match self.kind() {
             Slice(_) => true,
-            RawPtr(TypeAndMut { ty, .. }) | Ref(_, ty, _) => matches!(ty.kind(), Slice(_)),
+            ty::RawPtr(ty, _) | Ref(_, ty, _) => matches!(ty.kind(), Slice(_)),
             _ => false,
         }
     }
@@ -1964,11 +1969,7 @@ impl<'tcx> Ty<'tcx> {
 
     #[inline]
     pub fn is_mutable_ptr(self) -> bool {
-        matches!(
-            self.kind(),
-            RawPtr(TypeAndMut { mutbl: hir::Mutability::Mut, .. })
-                | Ref(_, _, hir::Mutability::Mut)
-        )
+        matches!(self.kind(), RawPtr(_, hir::Mutability::Mut) | Ref(_, _, hir::Mutability::Mut))
     }
 
     /// Get the mutability of the reference or `None` when not a reference
@@ -1982,7 +1983,7 @@ impl<'tcx> Ty<'tcx> {
 
     #[inline]
     pub fn is_unsafe_ptr(self) -> bool {
-        matches!(self.kind(), RawPtr(_))
+        matches!(self.kind(), RawPtr(_, _))
     }
 
     /// Tests if this is any kind of primitive pointer type (reference, raw pointer, fn pointer).
@@ -2038,7 +2039,7 @@ impl<'tcx> Ty<'tcx> {
                 | Uint(_)
                 | FnDef(..)
                 | FnPtr(_)
-                | RawPtr(_)
+                | RawPtr(_, _)
                 | Infer(IntVar(_) | FloatVar(_))
         )
     }
@@ -2174,7 +2175,7 @@ impl<'tcx> Ty<'tcx> {
                 Some(TypeAndMut { ty: self.boxed_ty(), mutbl: hir::Mutability::Not })
             }
             Ref(_, ty, mutbl) => Some(TypeAndMut { ty: *ty, mutbl: *mutbl }),
-            RawPtr(mt) if explicit => Some(*mt),
+            RawPtr(ty, mutbl) if explicit => Some(TypeAndMut { ty: *ty, mutbl: *mutbl }),
             _ => None,
         }
     }
@@ -2293,7 +2294,7 @@ impl<'tcx> Ty<'tcx> {
             | ty::Str
             | ty::Array(..)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(..)
             | ty::FnDef(..)
             | ty::FnPtr(..)
@@ -2636,7 +2637,7 @@ impl<'tcx> Ty<'tcx> {
             | Str
             | Array(_, _)
             | Slice(_)
-            | RawPtr(_)
+            | RawPtr(_, _)
             | Ref(_, _, _)
             | FnDef(_, _)
             | FnPtr(_)

compiler/rustc_middle/src/ty/util.rs

@@ -1237,7 +1237,7 @@ impl<'tcx> Ty<'tcx> {
             | ty::Str
             | ty::Never
             | ty::Ref(..)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::FnDef(..)
             | ty::Error(_)
             | ty::FnPtr(_) => true,
@@ -1277,7 +1277,7 @@ impl<'tcx> Ty<'tcx> {
             | ty::Str
             | ty::Never
             | ty::Ref(..)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::FnDef(..)
             | ty::Error(_)
             | ty::FnPtr(_) => true,
@@ -1401,7 +1401,7 @@ impl<'tcx> Ty<'tcx> {
             ty::Ref(..) | ty::Array(..) | ty::Slice(_) | ty::Tuple(..) => true,
 
             // Raw pointers use bitwise comparison.
-            ty::RawPtr(_) | ty::FnPtr(_) => true,
+            ty::RawPtr(_, _) | ty::FnPtr(_) => true,
 
             // Floating point numbers are not `Eq`.
             ty::Float(_) => false,
@@ -1494,7 +1494,7 @@ impl<'tcx> ExplicitSelf<'tcx> {
         match *self_arg_ty.kind() {
             _ if is_self_ty(self_arg_ty) => ByValue,
             ty::Ref(region, ty, mutbl) if is_self_ty(ty) => ByReference(region, mutbl),
-            ty::RawPtr(ty::TypeAndMut { ty, mutbl }) if is_self_ty(ty) => ByRawPointer(mutbl),
+            ty::RawPtr(ty, mutbl) if is_self_ty(ty) => ByRawPointer(mutbl),
             ty::Adt(def, _) if def.is_box() && is_self_ty(self_arg_ty.boxed_ty()) => ByBox,
             _ => Other,
         }
@@ -1519,7 +1519,7 @@ pub fn needs_drop_components<'tcx>(
         | ty::FnDef(..)
         | ty::FnPtr(_)
         | ty::Char
-        | ty::RawPtr(_)
+        | ty::RawPtr(_, _)
         | ty::Ref(..)
         | ty::Str => Ok(SmallVec::new()),
 
@@ -1574,7 +1574,7 @@ pub fn is_trivially_const_drop(ty: Ty<'_>) -> bool {
         | ty::Infer(ty::IntVar(_))
         | ty::Infer(ty::FloatVar(_))
         | ty::Str
-        | ty::RawPtr(_)
+        | ty::RawPtr(_, _)
         | ty::Ref(..)
         | ty::FnDef(..)
         | ty::FnPtr(_)

compiler/rustc_middle/src/ty/walk.rs

@@ -158,8 +158,8 @@ fn push_inner<'tcx>(stack: &mut TypeWalkerStack<'tcx>, parent: GenericArg<'tcx>)
             ty::Slice(ty) => {
                 stack.push(ty.into());
             }
-            ty::RawPtr(mt) => {
-                stack.push(mt.ty.into());
+            ty::RawPtr(ty, _) => {
+                stack.push(ty.into());
             }
             ty::Ref(lt, ty, _) => {
                 stack.push(ty.into());

compiler/rustc_mir_build/src/thir/cx/expr.rs

@@ -125,11 +125,7 @@ impl<'tcx> Cx<'tcx> {
 
                 expr = Expr {
                     temp_lifetime,
-                    ty: Ty::new_ref(
-                        self.tcx,
-                        deref.region,
-                        ty::TypeAndMut { ty: expr.ty, mutbl: deref.mutbl },
-                    ),
+                    ty: Ty::new_ref(self.tcx, deref.region, expr.ty, deref.mutbl),
                     span,
                     kind: ExprKind::Borrow {
                         borrow_kind: deref.mutbl.to_borrow_kind(),
@@ -1021,7 +1017,7 @@ impl<'tcx> Cx<'tcx> {
         let ty::Ref(region, _, mutbl) = *self.thir[args[0]].ty.kind() else {
             span_bug!(span, "overloaded_place: receiver is not a reference");
         };
-        let ref_ty = Ty::new_ref(self.tcx, region, ty::TypeAndMut { ty: place_ty, mutbl });
+        let ref_ty = Ty::new_ref(self.tcx, region, place_ty, mutbl);
 
         // construct the complete expression `foo()` for the overloaded call,
         // which will yield the &T type

compiler/rustc_mir_dataflow/src/elaborate_drops.rs

@@ -1,4 +1,3 @@
-use rustc_hir as hir;
 use rustc_hir::lang_items::LangItem;
 use rustc_index::Idx;
 use rustc_middle::mir::patch::MirPatch;
@@ -629,11 +628,7 @@ where
         let drop_fn = tcx.associated_item_def_ids(drop_trait)[0];
         let ty = self.place_ty(self.place);
 
-        let ref_ty = Ty::new_ref(
-            tcx,
-            tcx.lifetimes.re_erased,
-            ty::TypeAndMut { ty, mutbl: hir::Mutability::Mut },
-        );
+        let ref_ty = Ty::new_mut_ref(tcx, tcx.lifetimes.re_erased, ty);
         let ref_place = self.new_temp(ref_ty);
         let unit_temp = Place::from(self.new_temp(Ty::new_unit(tcx)));
 
@@ -700,7 +695,7 @@ where
         let move_ = |place: Place<'tcx>| Operand::Move(place);
         let tcx = self.tcx();
 
-        let ptr_ty = Ty::new_ptr(tcx, ty::TypeAndMut { ty: ety, mutbl: hir::Mutability::Mut });
+        let ptr_ty = Ty::new_mut_ptr(tcx, ety);
         let ptr = Place::from(self.new_temp(ptr_ty));
         let can_go = Place::from(self.new_temp(tcx.types.bool));
         let one = self.constant_usize(1);

compiler/rustc_mir_dataflow/src/move_paths/builder.rs

@@ -194,7 +194,7 @@ impl<'b, 'a, 'tcx, F: Fn(Ty<'tcx>) -> bool> Gatherer<'b, 'a, 'tcx, F> {
                     | ty::Str
                     | ty::Array(_, _)
                     | ty::Slice(_)
-                    | ty::RawPtr(_)
+                    | ty::RawPtr(_, _)
                     | ty::Ref(_, _, _)
                     | ty::FnDef(_, _)
                     | ty::FnPtr(_)

compiler/rustc_mir_dataflow/src/value_analysis.rs

@@ -843,7 +843,7 @@ impl Map {
             self.value_count += 1;
         }
 
-        if let ty::Ref(_, ref_ty, _) | ty::RawPtr(ty::TypeAndMut { ty: ref_ty, .. }) = ty.kind()
+        if let ty::Ref(_, ref_ty, _) | ty::RawPtr(ref_ty, _) = ty.kind()
             && let ty::Slice(..) = ref_ty.kind()
         {
             assert!(self.places[place].value_index.is_none(), "slices are not scalars");

compiler/rustc_mir_transform/src/check_alignment.rs

@@ -5,7 +5,7 @@ use rustc_middle::mir::{
     interpret::Scalar,
     visit::{MutatingUseContext, NonMutatingUseContext, PlaceContext, Visitor},
 };
-use rustc_middle::ty::{self, ParamEnv, Ty, TyCtxt, TypeAndMut};
+use rustc_middle::ty::{self, ParamEnv, Ty, TyCtxt};
 use rustc_session::Session;
 
 pub struct CheckAlignment;
@@ -157,7 +157,7 @@ fn insert_alignment_check<'tcx>(
     new_block: BasicBlock,
 ) {
     // Cast the pointer to a *const ()
-    let const_raw_ptr = Ty::new_ptr(tcx, TypeAndMut { ty: tcx.types.unit, mutbl: Mutability::Not });
+    let const_raw_ptr = Ty::new_imm_ptr(tcx, tcx.types.unit);
     let rvalue = Rvalue::Cast(CastKind::PtrToPtr, Operand::Copy(pointer), const_raw_ptr);
     let thin_ptr = local_decls.push(LocalDecl::with_source_info(const_raw_ptr, source_info)).into();
     block_data

compiler/rustc_mir_transform/src/coroutine.rs

@@ -570,11 +570,7 @@ impl<'tcx> MutVisitor<'tcx> for TransformVisitor<'tcx> {
 fn make_coroutine_state_argument_indirect<'tcx>(tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
     let coroutine_ty = body.local_decls.raw[1].ty;
 
-    let ref_coroutine_ty = Ty::new_ref(
-        tcx,
-        tcx.lifetimes.re_erased,
-        ty::TypeAndMut { ty: coroutine_ty, mutbl: Mutability::Mut },
-    );
+    let ref_coroutine_ty = Ty::new_mut_ref(tcx, tcx.lifetimes.re_erased, coroutine_ty);
 
     // Replace the by value coroutine argument
     body.local_decls.raw[1].ty = ref_coroutine_ty;
@@ -1265,10 +1261,8 @@ fn create_coroutine_drop_shim<'tcx>(
     make_coroutine_state_argument_indirect(tcx, &mut body);
 
     // Change the coroutine argument from &mut to *mut
-    body.local_decls[SELF_ARG] = LocalDecl::with_source_info(
-        Ty::new_ptr(tcx, ty::TypeAndMut { ty: coroutine_ty, mutbl: hir::Mutability::Mut }),
-        source_info,
-    );
+    body.local_decls[SELF_ARG] =
+        LocalDecl::with_source_info(Ty::new_mut_ptr(tcx, coroutine_ty), source_info);
 
     // Make sure we remove dead blocks to remove
     // unrelated code from the resume part of the function

compiler/rustc_mir_transform/src/function_item_references.rs

@@ -121,7 +121,7 @@ impl<'tcx> FunctionItemRefChecker<'_, 'tcx> {
     fn is_fn_ref(ty: Ty<'tcx>) -> Option<(DefId, GenericArgsRef<'tcx>)> {
         let referent_ty = match ty.kind() {
             ty::Ref(_, referent_ty, _) => Some(referent_ty),
-            ty::RawPtr(ty_and_mut) => Some(&ty_and_mut.ty),
+            ty::RawPtr(referent_ty, _) => Some(referent_ty),
             _ => None,
         };
         referent_ty

compiler/rustc_mir_transform/src/gvn.rs

@@ -94,7 +94,7 @@ use rustc_middle::mir::interpret::GlobalAlloc;
 use rustc_middle::mir::visit::*;
 use rustc_middle::mir::*;
 use rustc_middle::ty::layout::LayoutOf;
-use rustc_middle::ty::{self, Ty, TyCtxt, TypeAndMut};
+use rustc_middle::ty::{self, Ty, TyCtxt};
 use rustc_span::def_id::DefId;
 use rustc_span::DUMMY_SP;
 use rustc_target::abi::{self, Abi, Size, VariantIdx, FIRST_VARIANT};
@@ -451,11 +451,10 @@ impl<'body, 'tcx> VnState<'body, 'tcx> {
                     AddressKind::Ref(bk) => Ty::new_ref(
                         self.tcx,
                         self.tcx.lifetimes.re_erased,
-                        ty::TypeAndMut { ty: mplace.layout.ty, mutbl: bk.to_mutbl_lossy() },
+                        mplace.layout.ty,
+                        bk.to_mutbl_lossy(),
                     ),
-                    AddressKind::Address(mutbl) => {
-                        Ty::new_ptr(self.tcx, TypeAndMut { ty: mplace.layout.ty, mutbl })
-                    }
+                    AddressKind::Address(mutbl) => Ty::new_ptr(self.tcx, mplace.layout.ty, mutbl),
                 };
                 let layout = self.ecx.layout_of(ty).ok()?;
                 ImmTy::from_immediate(pointer, layout).into()

compiler/rustc_mir_transform/src/promote_consts.rs

@@ -464,7 +464,7 @@ impl<'tcx> Validator<'_, 'tcx> {
                 let op = *op;
                 let lhs_ty = lhs.ty(self.body, self.tcx);
 
-                if let ty::RawPtr(_) | ty::FnPtr(..) = lhs_ty.kind() {
+                if let ty::RawPtr(_, _) | ty::FnPtr(..) = lhs_ty.kind() {
                     // Raw and fn pointer operations are not allowed inside consts and thus not promotable.
                     assert!(matches!(
                         op,
@@ -820,11 +820,8 @@ impl<'a, 'tcx> Promoter<'a, 'tcx> {
             let ty = local_decls[place.local].ty;
             let span = statement.source_info.span;
 
-            let ref_ty = Ty::new_ref(
-                tcx,
-                tcx.lifetimes.re_erased,
-                ty::TypeAndMut { ty, mutbl: borrow_kind.to_mutbl_lossy() },
-            );
+            let ref_ty =
+                Ty::new_ref(tcx, tcx.lifetimes.re_erased, ty, borrow_kind.to_mutbl_lossy());
 
             let mut projection = vec![PlaceElem::Deref];
             projection.extend(place.projection);

compiler/rustc_mir_transform/src/shim.rs

@@ -539,14 +539,8 @@ impl<'tcx> CloneShimBuilder<'tcx> {
             const_: Const::zero_sized(func_ty),
         }));
 
-        let ref_loc = self.make_place(
-            Mutability::Not,
-            Ty::new_ref(
-                tcx,
-                tcx.lifetimes.re_erased,
-                ty::TypeAndMut { ty, mutbl: hir::Mutability::Not },
-            ),
-        );
+        let ref_loc =
+            self.make_place(Mutability::Not, Ty::new_imm_ref(tcx, tcx.lifetimes.re_erased, ty));
 
         // `let ref_loc: &ty = &src;`
         let statement = self.make_statement(StatementKind::Assign(Box::new((
@@ -771,11 +765,7 @@ fn build_call_shim<'tcx>(
             // let rcvr = &mut rcvr;
             let ref_rcvr = local_decls.push(
                 LocalDecl::new(
-                    Ty::new_ref(
-                        tcx,
-                        tcx.lifetimes.re_erased,
-                        ty::TypeAndMut { ty: sig.inputs()[0], mutbl: hir::Mutability::Mut },
-                    ),
+                    Ty::new_mut_ref(tcx, tcx.lifetimes.re_erased, sig.inputs()[0]),
                     span,
                 )
                 .immutable(),

compiler/rustc_monomorphize/src/collector.rs

@@ -1211,10 +1211,8 @@ fn find_vtable_types_for_unsizing<'tcx>(
     };
 
     match (&source_ty.kind(), &target_ty.kind()) {
-        (&ty::Ref(_, a, _), &ty::Ref(_, b, _) | &ty::RawPtr(ty::TypeAndMut { ty: b, .. }))
-        | (&ty::RawPtr(ty::TypeAndMut { ty: a, .. }), &ty::RawPtr(ty::TypeAndMut { ty: b, .. })) => {
-            ptr_vtable(*a, *b)
-        }
+        (&ty::Ref(_, a, _), &ty::Ref(_, b, _) | &ty::RawPtr(b, _))
+        | (&ty::RawPtr(a, _), &ty::RawPtr(b, _)) => ptr_vtable(*a, *b),
         (&ty::Adt(def_a, _), &ty::Adt(def_b, _)) if def_a.is_box() && def_b.is_box() => {
             ptr_vtable(source_ty.boxed_ty(), target_ty.boxed_ty())
         }

compiler/rustc_next_trait_solver/src/canonicalizer.rs

@@ -351,7 +351,7 @@ impl<Infcx: InferCtxtLike<Interner = I>, I: Interner> TypeFolder<I>
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)

compiler/rustc_pattern_analysis/src/rustc.rs

@@ -398,7 +398,7 @@ impl<'p, 'tcx: 'p> RustcPatCtxt<'p, 'tcx> {
             ty::Float(_)
             | ty::Str
             | ty::Foreign(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)
             | ty::Dynamic(_, _, _)

compiler/rustc_smir/src/rustc_internal/internal.rs

@@ -95,10 +95,9 @@ impl RustcInternal for RigidTy {
             }
             RigidTy::Str => rustc_ty::TyKind::Str,
             RigidTy::Slice(ty) => rustc_ty::TyKind::Slice(ty.internal(tables, tcx)),
-            RigidTy::RawPtr(ty, mutability) => rustc_ty::TyKind::RawPtr(rustc_ty::TypeAndMut {
-                ty: ty.internal(tables, tcx),
-                mutbl: mutability.internal(tables, tcx),
-            }),
+            RigidTy::RawPtr(ty, mutability) => {
+                rustc_ty::TyKind::RawPtr(ty.internal(tables, tcx), mutability.internal(tables, tcx))
+            }
             RigidTy::Ref(region, ty, mutability) => rustc_ty::TyKind::Ref(
                 region.internal(tables, tcx),
                 ty.internal(tables, tcx),

compiler/rustc_smir/src/rustc_smir/convert/ty.rs

@@ -331,7 +331,7 @@ impl<'tcx> Stable<'tcx> for ty::TyKind<'tcx> {
                 TyKind::RigidTy(RigidTy::Array(ty.stable(tables), constant.stable(tables)))
             }
             ty::Slice(ty) => TyKind::RigidTy(RigidTy::Slice(ty.stable(tables))),
-            ty::RawPtr(ty::TypeAndMut { ty, mutbl }) => {
+            ty::RawPtr(ty, mutbl) => {
                 TyKind::RigidTy(RigidTy::RawPtr(ty.stable(tables), mutbl.stable(tables)))
             }
             ty::Ref(region, ty, mutbl) => TyKind::RigidTy(RigidTy::Ref(

compiler/rustc_symbol_mangling/src/typeid/typeid_itanium_cxx_abi.rs

@@ -683,13 +683,14 @@ fn encode_ty<'tcx>(
             typeid.push_str(&s);
         }
 
-        ty::RawPtr(tm) => {
+        ty::RawPtr(ptr_ty, _mutbl) => {
+            // FIXME: This can definitely not be so spaghettified.
             // P[K]<element-type>
             let mut s = String::new();
-            s.push_str(&encode_ty(tcx, tm.ty, dict, options));
+            s.push_str(&encode_ty(tcx, *ptr_ty, dict, options));
             if !ty.is_mutable_ptr() {
                 s = format!("{}{}", "K", &s);
-                compress(dict, DictKey::Ty(tm.ty, TyQ::Const), &mut s);
+                compress(dict, DictKey::Ty(*ptr_ty, TyQ::Const), &mut s);
             };
             s = format!("{}{}", "P", &s);
             compress(dict, DictKey::Ty(ty, TyQ::None), &mut s);
@@ -930,7 +931,7 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio
             }
         }
 
-        ty::RawPtr(tm) => {
+        ty::RawPtr(ptr_ty, _) => {
             if options.contains(TransformTyOptions::GENERALIZE_POINTERS) {
                 if ty.is_mutable_ptr() {
                     ty = Ty::new_mut_ptr(tcx, Ty::new_unit(tcx));
@@ -939,9 +940,9 @@ fn transform_ty<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>, options: TransformTyOptio
                 }
             } else {
                 if ty.is_mutable_ptr() {
-                    ty = Ty::new_mut_ptr(tcx, transform_ty(tcx, tm.ty, options));
+                    ty = Ty::new_mut_ptr(tcx, transform_ty(tcx, *ptr_ty, options));
                 } else {
-                    ty = Ty::new_imm_ptr(tcx, transform_ty(tcx, tm.ty, options));
+                    ty = Ty::new_imm_ptr(tcx, transform_ty(tcx, *ptr_ty, options));
                 }
             }
         }

compiler/rustc_symbol_mangling/src/v0.rs

@@ -361,12 +361,12 @@ impl<'tcx> Printer<'tcx> for SymbolMangler<'tcx> {
                 ty.print(self)?;
             }
 
-            ty::RawPtr(mt) => {
-                self.push(match mt.mutbl {
+            ty::RawPtr(ty, mutbl) => {
+                self.push(match mutbl {
                     hir::Mutability::Not => "P",
                     hir::Mutability::Mut => "O",
                 });
-                mt.ty.print(self)?;
+                ty.print(self)?;
             }
 
             ty::Array(ty, len) => {

compiler/rustc_trait_selection/src/solve/assembly/mod.rs

@@ -357,7 +357,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)
@@ -590,7 +590,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)
@@ -678,7 +678,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)

compiler/rustc_trait_selection/src/solve/assembly/structural_traits.rs

@@ -46,7 +46,7 @@ pub(in crate::solve) fn instantiate_constituent_tys_for_auto_trait<'tcx>(
             bug!("unexpected type `{ty}`")
         }
 
-        ty::RawPtr(ty::TypeAndMut { ty: element_ty, .. }) | ty::Ref(_, element_ty, _) => {
+        ty::RawPtr(element_ty, _) | ty::Ref(_, element_ty, _) => {
             Ok(vec![ty::Binder::dummy(element_ty)])
         }
 
@@ -340,7 +340,7 @@ pub(in crate::solve) fn extract_tupled_inputs_and_output_from_callable<'tcx>(
         | ty::Str
         | ty::Array(_, _)
         | ty::Slice(_)
-        | ty::RawPtr(_)
+        | ty::RawPtr(_, _)
         | ty::Ref(_, _, _)
         | ty::Dynamic(_, _, _)
         | ty::Coroutine(_, _)
@@ -527,7 +527,7 @@ pub(in crate::solve) fn extract_tupled_inputs_and_output_from_async_callable<'tc
         | ty::Str
         | ty::Array(_, _)
         | ty::Slice(_)
-        | ty::RawPtr(_)
+        | ty::RawPtr(_, _)
         | ty::Ref(_, _, _)
         | ty::Dynamic(_, _, _)
         | ty::Coroutine(_, _)

compiler/rustc_trait_selection/src/solve/trait_goals.rs

@@ -1050,7 +1050,7 @@ impl<'tcx> EvalCtxt<'_, 'tcx> {
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)

compiler/rustc_trait_selection/src/traits/error_reporting/suggestions.rs

@@ -31,8 +31,8 @@ use rustc_middle::traits::IsConstable;
 use rustc_middle::ty::error::TypeError::{self, Sorts};
 use rustc_middle::ty::{
     self, suggest_arbitrary_trait_bound, suggest_constraining_type_param, AdtKind, GenericArgs,
-    InferTy, IsSuggestable, ToPredicate, Ty, TyCtxt, TypeAndMut, TypeFoldable, TypeFolder,
-    TypeSuperFoldable, TypeVisitableExt, TypeckResults,
+    InferTy, IsSuggestable, ToPredicate, Ty, TyCtxt, TypeFoldable, TypeFolder, TypeSuperFoldable,
+    TypeVisitableExt, TypeckResults,
 };
 use rustc_span::def_id::LocalDefId;
 use rustc_span::symbol::{kw, sym, Ident, Symbol};
@@ -482,7 +482,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
                     if let Some(steps) =
                         autoderef.into_iter().enumerate().find_map(|(steps, (ty, obligations))| {
                             // Re-add the `&`
-                            let ty = Ty::new_ref(self.tcx, region, TypeAndMut { ty, mutbl });
+                            let ty = Ty::new_ref(self.tcx, region, ty, mutbl);
 
                             // Remapping bound vars here
                             let real_trait_pred_and_ty = real_trait_pred
@@ -4352,7 +4352,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
         // Go through all the candidate impls to see if any of them is for
         // slices of `element_ty` with `mutability`.
         let mut is_slice = |candidate: Ty<'tcx>| match *candidate.kind() {
-            ty::RawPtr(ty::TypeAndMut { ty: t, mutbl: m }) | ty::Ref(_, t, m) => {
+            ty::RawPtr(t, m) | ty::Ref(_, t, m) => {
                 if matches!(*t.kind(), ty::Slice(e) if e == element_ty)
                     && m == mutability.unwrap_or(m)
                 {

compiler/rustc_trait_selection/src/traits/error_reporting/type_err_ctxt_ext.rs

@@ -1357,7 +1357,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
                     "using function pointers as const generic parameters is forbidden",
                 )
             }
-            ty::RawPtr(_) => {
+            ty::RawPtr(_, _) => {
                 struct_span_code_err!(
                     self.dcx(),
                     span,
@@ -1809,9 +1809,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
         let strip_references = |mut t: Ty<'tcx>| -> Ty<'tcx> {
             loop {
                 match t.kind() {
-                    ty::Ref(_, inner, _) | ty::RawPtr(ty::TypeAndMut { ty: inner, .. }) => {
-                        t = *inner
-                    }
+                    ty::Ref(_, inner, _) | ty::RawPtr(inner, _) => t = *inner,
                     _ => break t,
                 }
             }

compiler/rustc_trait_selection/src/traits/query/dropck_outlives.rs

@@ -36,7 +36,7 @@ pub fn trivial_dropck_outlives<'tcx>(tcx: TyCtxt<'tcx>, ty: Ty<'tcx>) -> bool {
         | ty::FnPtr(_)
         | ty::Char
         | ty::CoroutineWitness(..)
-        | ty::RawPtr(_)
+        | ty::RawPtr(_, _)
         | ty::Ref(..)
         | ty::Str
         | ty::Foreign(..)

compiler/rustc_trait_selection/src/traits/select/candidate_assembly.rs

@@ -671,7 +671,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                 | ty::Str
                 | ty::Array(_, _)
                 | ty::Slice(_)
-                | ty::RawPtr(_)
+                | ty::RawPtr(_, _)
                 | ty::Ref(_, _, _)
                 | ty::Closure(..)
                 | ty::CoroutineClosure(..)
@@ -805,7 +805,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                 | ty::Array(_, _)
                 | ty::Slice(_)
                 | ty::Adt(..)
-                | ty::RawPtr(_)
+                | ty::RawPtr(_, _)
                 | ty::Ref(..)
                 | ty::FnDef(..)
                 | ty::FnPtr(_)
@@ -1186,7 +1186,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             | ty::Infer(ty::IntVar(_))
             | ty::Infer(ty::FloatVar(_))
             | ty::Str
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(..)
             | ty::FnDef(..)
             | ty::FnPtr(_)
@@ -1267,7 +1267,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             | ty::Str
             | ty::Array(_, _)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(_, _, _)
             | ty::FnDef(_, _)
             | ty::FnPtr(_)
@@ -1330,7 +1330,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
             | ty::Str
             | ty::Array(..)
             | ty::Slice(_)
-            | ty::RawPtr(_)
+            | ty::RawPtr(_, _)
             | ty::Ref(..)
             | ty::FnDef(..)
             | ty::Placeholder(..)

compiler/rustc_trait_selection/src/traits/select/confirmation.rs

@@ -1413,7 +1413,7 @@ impl<'cx, 'tcx> SelectionContext<'cx, 'tcx> {
                 | ty::Infer(ty::IntVar(_))
                 | ty::Infer(ty::FloatVar(_))
                 | ty::Str
-                | ty::RawPtr(_)
+                | ty::RawPtr(_, _)
                 | ty::Ref(..)
                 | ty::FnDef(..)
                 | ty::FnPtr(_)

compiler/rustc_trait_selection/src/traits/select/mod.rs

@@ -2314,9 +2314,7 @@ impl<'tcx> SelectionContext<'_, 'tcx> {
                 bug!("asked to assemble constituent types of unexpected type: {:?}", t);
             }
 
-            ty::RawPtr(ty::TypeAndMut { ty: element_ty, .. }) | ty::Ref(_, element_ty, _) => {
-                t.rebind(vec![element_ty])
-            }
+            ty::RawPtr(element_ty, _) | ty::Ref(_, element_ty, _) => t.rebind(vec![element_ty]),
 
             ty::Array(element_ty, _) | ty::Slice(element_ty) => t.rebind(vec![element_ty]),
 

compiler/rustc_trait_selection/src/traits/wf.rs

@@ -687,7 +687,7 @@ impl<'a, 'tcx> TypeVisitor<TyCtxt<'tcx>> for WfPredicates<'a, 'tcx> {
                 }
             }
 
-            ty::RawPtr(_) => {
+            ty::RawPtr(_, _) => {
                 // Simple cases that are WF if their type args are WF.
             }
 

compiler/rustc_ty_utils/src/abi.rs

@@ -623,7 +623,7 @@ fn fn_abi_new_uncached<'tcx>(
         let is_return = arg_idx.is_none();
         let is_drop_target = is_drop_in_place && arg_idx == Some(0);
         let drop_target_pointee = is_drop_target.then(|| match ty.kind() {
-            ty::RawPtr(ty::TypeAndMut { ty, .. }) => *ty,
+            ty::RawPtr(ty, _) => *ty,
             _ => bug!("argument to drop_in_place is not a raw ptr: {:?}", ty),
         });
 

compiler/rustc_ty_utils/src/layout.rs

@@ -156,7 +156,7 @@ fn layout_of_uncached<'tcx>(
         ty::Never => tcx.mk_layout(cx.layout_of_never_type()),
 
         // Potentially-wide pointers.
-        ty::Ref(_, pointee, _) | ty::RawPtr(ty::TypeAndMut { ty: pointee, .. }) => {
+        ty::Ref(_, pointee, _) | ty::RawPtr(pointee, _) => {
             let mut data_ptr = scalar_unit(Pointer(AddressSpace::DATA));
             if !ty.is_unsafe_ptr() {
                 data_ptr.valid_range_mut().start = 1;

compiler/rustc_type_ir/src/ty_kind.rs

@@ -112,7 +112,7 @@ pub enum TyKind<I: Interner> {
     Slice(I::Ty),
 
     /// A raw pointer. Written as `*mut T` or `*const T`
-    RawPtr(TypeAndMut<I>),
+    RawPtr(I::Ty, Mutability),
 
     /// A reference; a pointer with an associated lifetime. Written as
     /// `&'a mut T` or `&'a T`.
@@ -270,7 +270,7 @@ const fn tykind_discriminant<I: Interner>(value: &TyKind<I>) -> usize {
         Str => 7,
         Array(_, _) => 8,
         Slice(_) => 9,
-        RawPtr(_) => 10,
+        RawPtr(_, _) => 10,
         Ref(_, _, _) => 11,
         FnDef(_, _) => 12,
         FnPtr(_) => 13,
@@ -308,7 +308,7 @@ impl<I: Interner> PartialEq for TyKind<I> {
             (Foreign(a_d), Foreign(b_d)) => a_d == b_d,
             (Array(a_t, a_c), Array(b_t, b_c)) => a_t == b_t && a_c == b_c,
             (Slice(a_t), Slice(b_t)) => a_t == b_t,
-            (RawPtr(a_t), RawPtr(b_t)) => a_t == b_t,
+            (RawPtr(a_t, a_m), RawPtr(b_t, b_m)) => a_t == b_t && a_m == b_m,
             (Ref(a_r, a_t, a_m), Ref(b_r, b_t, b_m)) => a_r == b_r && a_t == b_t && a_m == b_m,
             (FnDef(a_d, a_s), FnDef(b_d, b_s)) => a_d == b_d && a_s == b_s,
             (FnPtr(a_s), FnPtr(b_s)) => a_s == b_s,
@@ -371,7 +371,7 @@ impl<I: Interner> DebugWithInfcx<I> for TyKind<I> {
             Str => write!(f, "str"),
             Array(t, c) => write!(f, "[{:?}; {:?}]", &this.wrap(t), &this.wrap(c)),
             Slice(t) => write!(f, "[{:?}]", &this.wrap(t)),
-            RawPtr(TypeAndMut { ty, mutbl }) => {
+            RawPtr(ty, mutbl) => {
                 match mutbl {
                     Mutability::Mut => write!(f, "*mut "),
                     Mutability::Not => write!(f, "*const "),

src/librustdoc/clean/mod.rs

@@ -2053,8 +2053,8 @@ pub(crate) fn clean_middle_ty<'tcx>(
             let n = print_const(cx, n);
             Array(Box::new(clean_middle_ty(bound_ty.rebind(ty), cx, None, None)), n.into())
         }
-        ty::RawPtr(mt) => {
-            RawPointer(mt.mutbl, Box::new(clean_middle_ty(bound_ty.rebind(mt.ty), cx, None, None)))
+        ty::RawPtr(ty, mutbl) => {
+            RawPointer(mutbl, Box::new(clean_middle_ty(bound_ty.rebind(ty), cx, None, None)))
         }
         ty::Ref(r, ty, mutbl) => BorrowedRef {
             lifetime: clean_middle_region(r),

src/librustdoc/passes/collect_intra_doc_links.rs

@@ -493,7 +493,7 @@ impl<'a, 'tcx> LinkCollector<'a, 'tcx> {
             ty::Tuple(_) => Res::Primitive(Tuple),
             ty::Array(..) => Res::Primitive(Array),
             ty::Slice(_) => Res::Primitive(Slice),
-            ty::RawPtr(_) => Res::Primitive(RawPointer),
+            ty::RawPtr(_, _) => Res::Primitive(RawPointer),
             ty::Ref(..) => Res::Primitive(Reference),
             ty::FnDef(..) => panic!("type alias to a function definition"),
             ty::FnPtr(_) => Res::Primitive(Fn),

src/librustdoc/passes/collect_trait_impls.rs

@@ -115,9 +115,7 @@ pub(crate) fn collect_trait_impls(mut krate: Crate, cx: &mut DocContext<'_>) ->
                     // form that is valid for use in type inference.
                     let ty = tcx.type_of(def_id).instantiate_identity();
                     match ty.kind() {
-                        ty::Slice(ty)
-                        | ty::Ref(_, ty, _)
-                        | ty::RawPtr(ty::TypeAndMut { ty, .. }) => {
+                        ty::Slice(ty) | ty::Ref(_, ty, _) | ty::RawPtr(ty, _) => {
                             matches!(ty.kind(), ty::Param(..))
                         }
                         ty::Tuple(tys) => tys.iter().all(|ty| matches!(ty.kind(), ty::Param(..))),

src/tools/clippy/clippy_lints/src/casts/as_ptr_cast_mut.rs

@@ -4,18 +4,13 @@ use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind};
 use rustc_lint::LateContext;
 use rustc_middle::mir::Mutability;
-use rustc_middle::ty::{self, Ty, TypeAndMut};
+use rustc_middle::ty::{self, Ty};
 
 use super::AS_PTR_CAST_MUT;
 
 pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, cast_to: Ty<'_>) {
-    if let ty::RawPtr(TypeAndMut {
-        mutbl: Mutability::Mut,
-        ty: ptrty,
-    }) = cast_to.kind()
-        && let ty::RawPtr(TypeAndMut {
-            mutbl: Mutability::Not, ..
-        }) = cx.typeck_results().node_type(cast_expr.hir_id).kind()
+    if let ty::RawPtr(ptrty, Mutability::Mut) = cast_to.kind()
+        && let ty::RawPtr(_, Mutability::Not) = cx.typeck_results().node_type(cast_expr.hir_id).kind()
         && let ExprKind::MethodCall(method_name, receiver, [], _) = cast_expr.peel_blocks().kind
         && method_name.ident.name == rustc_span::sym::as_ptr
         && let Some(as_ptr_did) = cx

src/tools/clippy/clippy_lints/src/casts/cast_ptr_alignment.rs

@@ -33,13 +33,13 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>) {
 }
 
 fn lint_cast_ptr_alignment<'tcx>(cx: &LateContext<'tcx>, expr: &Expr<'_>, cast_from: Ty<'tcx>, cast_to: Ty<'tcx>) {
-    if let ty::RawPtr(from_ptr_ty) = &cast_from.kind()
-        && let ty::RawPtr(to_ptr_ty) = &cast_to.kind()
-        && let Ok(from_layout) = cx.layout_of(from_ptr_ty.ty)
-        && let Ok(to_layout) = cx.layout_of(to_ptr_ty.ty)
+    if let ty::RawPtr(from_ptr_ty, _) = *cast_from.kind()
+        && let ty::RawPtr(to_ptr_ty, _) = *cast_to.kind()
+        && let Ok(from_layout) = cx.layout_of(from_ptr_ty)
+        && let Ok(to_layout) = cx.layout_of(to_ptr_ty)
         && from_layout.align.abi < to_layout.align.abi
         // with c_void, we inherently need to trust the user
-        && !is_c_void(cx, from_ptr_ty.ty)
+        && !is_c_void(cx, from_ptr_ty)
         // when casting from a ZST, we don't know enough to properly lint
         && !from_layout.is_zst()
         && !is_used_as_unaligned(cx, expr)

src/tools/clippy/clippy_lints/src/casts/cast_slice_different_sizes.rs

@@ -87,7 +87,7 @@ fn is_child_of_cast(cx: &LateContext<'_>, expr: &Expr<'_>) -> bool {
 /// the type is one of those slices
 fn get_raw_slice_ty_mut(ty: Ty<'_>) -> Option<TypeAndMut<'_>> {
     match ty.kind() {
-        ty::RawPtr(TypeAndMut { ty: slice_ty, mutbl }) => match slice_ty.kind() {
+        ty::RawPtr(slice_ty, mutbl) => match slice_ty.kind() {
             ty::Slice(ty) => Some(TypeAndMut { ty: *ty, mutbl: *mutbl }),
             _ => None,
         },

src/tools/clippy/clippy_lints/src/casts/cast_slice_from_raw_parts.rs

@@ -25,8 +25,8 @@ fn raw_parts_kind(cx: &LateContext<'_>, did: DefId) -> Option<RawPartsKind> {
 
 pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, cast_expr: &Expr<'_>, cast_to: Ty<'_>, msrv: &Msrv) {
     if msrv.meets(msrvs::PTR_SLICE_RAW_PARTS)
-        && let ty::RawPtr(ptrty) = cast_to.kind()
-        && let ty::Slice(_) = ptrty.ty.kind()
+        && let ty::RawPtr(ptrty, _) = cast_to.kind()
+        && let ty::Slice(_) = ptrty.kind()
         && let ExprKind::Call(fun, [ptr_arg, len_arg]) = cast_expr.peel_blocks().kind
         && let ExprKind::Path(ref qpath) = fun.kind
         && let Some(fun_def_id) = cx.qpath_res(qpath, fun.hir_id).opt_def_id()

src/tools/clippy/clippy_lints/src/casts/ptr_as_ptr.rs

@@ -6,7 +6,7 @@ use rustc_errors::Applicability;
 use rustc_hir::{Expr, ExprKind, Mutability, QPath, TyKind};
 use rustc_hir_pretty::qpath_to_string;
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, TypeAndMut};
+use rustc_middle::ty;
 use rustc_span::sym;
 
 use super::PTR_AS_PTR;
@@ -33,8 +33,8 @@ pub(super) fn check(cx: &LateContext<'_>, expr: &Expr<'_>, msrv: &Msrv) {
 
     if let ExprKind::Cast(cast_expr, cast_to_hir_ty) = expr.kind
         && let (cast_from, cast_to) = (cx.typeck_results().expr_ty(cast_expr), cx.typeck_results().expr_ty(expr))
-        && let ty::RawPtr(TypeAndMut { mutbl: from_mutbl, .. }) = cast_from.kind()
-        && let ty::RawPtr(TypeAndMut { ty: to_pointee_ty, mutbl: to_mutbl }) = cast_to.kind()
+        && let ty::RawPtr(_, from_mutbl) = cast_from.kind()
+        && let ty::RawPtr(to_pointee_ty, to_mutbl) = cast_to.kind()
         && matches!((from_mutbl, to_mutbl),
             (Mutability::Not, Mutability::Not) | (Mutability::Mut, Mutability::Mut))
         // The `U` in `pointer::cast` have to be `Sized`

src/tools/clippy/clippy_lints/src/casts/ptr_cast_constness.rs

@@ -4,7 +4,7 @@ use clippy_utils::sugg::Sugg;
 use rustc_errors::Applicability;
 use rustc_hir::{Expr, Mutability};
 use rustc_lint::LateContext;
-use rustc_middle::ty::{self, Ty, TypeAndMut};
+use rustc_middle::ty::{self, Ty};
 
 use super::PTR_CAST_CONSTNESS;
 
@@ -17,14 +17,8 @@ pub(super) fn check<'tcx>(
     msrv: &Msrv,
 ) {
     if msrv.meets(msrvs::POINTER_CAST_CONSTNESS)
-        && let ty::RawPtr(TypeAndMut {
-            mutbl: from_mutbl,
-            ty: from_ty,
-        }) = cast_from.kind()
-        && let ty::RawPtr(TypeAndMut {
-            mutbl: to_mutbl,
-            ty: to_ty,
-        }) = cast_to.kind()
+        && let ty::RawPtr(from_ty, from_mutbl) = cast_from.kind()
+        && let ty::RawPtr(to_ty, to_mutbl) = cast_to.kind()
         && matches!(
             (from_mutbl, to_mutbl),
             (Mutability::Not, Mutability::Mut) | (Mutability::Mut, Mutability::Not)