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-rw-r--r--compiler/rustc_infer/src/infer/canonical/canonicalizer.rs27
-rw-r--r--compiler/rustc_infer/src/infer/canonical/instantiate.rs2
-rw-r--r--compiler/rustc_infer/src/infer/canonical/mod.rs11
-rw-r--r--compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs4
-rw-r--r--compiler/rustc_infer/src/infer/freshen.rs7
-rw-r--r--compiler/rustc_infer/src/infer/mod.rs53
-rw-r--r--compiler/rustc_infer/src/infer/relate/generalize.rs8
-rw-r--r--compiler/rustc_infer/src/infer/relate/higher_ranked.rs3
-rw-r--r--compiler/rustc_infer/src/infer/snapshot/fudge.rs2
9 files changed, 40 insertions, 77 deletions
diff --git a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
index 27b06c4b73e..bc2592b43f3 100644
--- a/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
+++ b/compiler/rustc_infer/src/infer/canonical/canonicalizer.rs
@@ -462,7 +462,7 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'cx, 'tcx> {
                 // any equated inference vars correctly!
                 let root_vid = self.infcx.unwrap().root_const_var(vid);
                 if root_vid != vid {
-                    ct = ty::Const::new_var(self.tcx, root_vid, ct.ty());
+                    ct = ty::Const::new_var(self.tcx, root_vid);
                     vid = root_vid;
                 }
 
@@ -481,7 +481,7 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'cx, 'tcx> {
                             ui = ty::UniverseIndex::ROOT;
                         }
                         return self.canonicalize_const_var(
-                            CanonicalVarInfo { kind: CanonicalVarKind::Const(ui, ct.ty()) },
+                            CanonicalVarInfo { kind: CanonicalVarKind::Const(ui) },
                             ct,
                         );
                     }
@@ -510,9 +510,7 @@ impl<'cx, 'tcx> TypeFolder<TyCtxt<'tcx>> for Canonicalizer<'cx, 'tcx> {
             }
             ty::ConstKind::Placeholder(placeholder) => {
                 return self.canonicalize_const_var(
-                    CanonicalVarInfo {
-                        kind: CanonicalVarKind::PlaceholderConst(placeholder, ct.ty()),
-                    },
+                    CanonicalVarInfo { kind: CanonicalVarKind::PlaceholderConst(placeholder) },
                     ct,
                 );
             }
@@ -719,9 +717,7 @@ impl<'cx, 'tcx> Canonicalizer<'cx, 'tcx> {
                     CanonicalVarKind::Region(u) => {
                         CanonicalVarKind::Region(reverse_universe_map[&u])
                     }
-                    CanonicalVarKind::Const(u, t) => {
-                        CanonicalVarKind::Const(reverse_universe_map[&u], t)
-                    }
+                    CanonicalVarKind::Const(u) => CanonicalVarKind::Const(reverse_universe_map[&u]),
                     CanonicalVarKind::PlaceholderTy(placeholder) => {
                         CanonicalVarKind::PlaceholderTy(ty::Placeholder {
                             universe: reverse_universe_map[&placeholder.universe],
@@ -734,14 +730,11 @@ impl<'cx, 'tcx> Canonicalizer<'cx, 'tcx> {
                             ..placeholder
                         })
                     }
-                    CanonicalVarKind::PlaceholderConst(placeholder, t) => {
-                        CanonicalVarKind::PlaceholderConst(
-                            ty::Placeholder {
-                                universe: reverse_universe_map[&placeholder.universe],
-                                ..placeholder
-                            },
-                            t,
-                        )
+                    CanonicalVarKind::PlaceholderConst(placeholder) => {
+                        CanonicalVarKind::PlaceholderConst(ty::Placeholder {
+                            universe: reverse_universe_map[&placeholder.universe],
+                            ..placeholder
+                        })
                     }
                 },
             })
@@ -806,6 +799,6 @@ impl<'cx, 'tcx> Canonicalizer<'cx, 'tcx> {
             !self.infcx.is_some_and(|infcx| const_var != infcx.shallow_resolve_const(const_var))
         );
         let var = self.canonical_var(info, const_var.into());
-        ty::Const::new_bound(self.tcx, self.binder_index, var, self.fold_ty(const_var.ty()))
+        ty::Const::new_bound(self.tcx, self.binder_index, var)
     }
 }
diff --git a/compiler/rustc_infer/src/infer/canonical/instantiate.rs b/compiler/rustc_infer/src/infer/canonical/instantiate.rs
index de0e15ef3de..153de3d4c09 100644
--- a/compiler/rustc_infer/src/infer/canonical/instantiate.rs
+++ b/compiler/rustc_infer/src/infer/canonical/instantiate.rs
@@ -70,7 +70,7 @@ where
                 GenericArgKind::Type(ty) => ty,
                 r => bug!("{:?} is a type but value is {:?}", bound_ty, r),
             },
-            consts: &mut |bound_ct: ty::BoundVar, _| match var_values[bound_ct].unpack() {
+            consts: &mut |bound_ct: ty::BoundVar| match var_values[bound_ct].unpack() {
                 GenericArgKind::Const(ct) => ct,
                 c => bug!("{:?} is a const but value is {:?}", bound_ct, c),
             },
diff --git a/compiler/rustc_infer/src/infer/canonical/mod.rs b/compiler/rustc_infer/src/infer/canonical/mod.rs
index 1abb8086d41..8ad4f7926ca 100644
--- a/compiler/rustc_infer/src/infer/canonical/mod.rs
+++ b/compiler/rustc_infer/src/infer/canonical/mod.rs
@@ -143,8 +143,8 @@ impl<'tcx> InferCtxt<'tcx> {
                 ty::Region::new_placeholder(self.tcx, placeholder_mapped).into()
             }
 
-            CanonicalVarKind::Const(ui, ty) => {
-                self.next_const_var_in_universe(ty, span, universe_map(ui)).into()
+            CanonicalVarKind::Const(ui) => {
+                self.next_const_var_in_universe(span, universe_map(ui)).into()
             }
             CanonicalVarKind::Effect => {
                 let vid = self
@@ -153,13 +153,12 @@ impl<'tcx> InferCtxt<'tcx> {
                     .effect_unification_table()
                     .new_key(EffectVarValue::Unknown)
                     .vid;
-                ty::Const::new_infer(self.tcx, ty::InferConst::EffectVar(vid), self.tcx.types.bool)
-                    .into()
+                ty::Const::new_infer(self.tcx, ty::InferConst::EffectVar(vid)).into()
             }
-            CanonicalVarKind::PlaceholderConst(ty::PlaceholderConst { universe, bound }, ty) => {
+            CanonicalVarKind::PlaceholderConst(ty::PlaceholderConst { universe, bound }) => {
                 let universe_mapped = universe_map(universe);
                 let placeholder_mapped = ty::PlaceholderConst { universe: universe_mapped, bound };
-                ty::Const::new_placeholder(self.tcx, placeholder_mapped, ty).into()
+                ty::Const::new_placeholder(self.tcx, placeholder_mapped).into()
             }
         }
     }
diff --git a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
index fb8c843f309..cb0e13652e8 100644
--- a/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
+++ b/compiler/rustc_infer/src/infer/error_reporting/need_type_info.rs
@@ -543,9 +543,7 @@ impl<'tcx> TypeErrCtxt<'_, 'tcx> {
                             match arg.unpack() {
                                 GenericArgKind::Lifetime(_) => bug!("unexpected lifetime"),
                                 GenericArgKind::Type(_) => self.next_ty_var(DUMMY_SP).into(),
-                                GenericArgKind::Const(arg) => {
-                                    self.next_const_var(arg.ty(), DUMMY_SP).into()
-                                }
+                                GenericArgKind::Const(_) => self.next_const_var(DUMMY_SP).into(),
                             }
                         }))
                         .unwrap();
diff --git a/compiler/rustc_infer/src/infer/freshen.rs b/compiler/rustc_infer/src/infer/freshen.rs
index a3c8d5f4251..3ef25ae2d3e 100644
--- a/compiler/rustc_infer/src/infer/freshen.rs
+++ b/compiler/rustc_infer/src/infer/freshen.rs
@@ -79,7 +79,6 @@ impl<'a, 'tcx> TypeFreshener<'a, 'tcx> {
         &mut self,
         input: Result<ty::Const<'tcx>, ty::InferConst>,
         freshener: F,
-        ty: Ty<'tcx>,
     ) -> ty::Const<'tcx>
     where
         F: FnOnce(u32) -> ty::InferConst,
@@ -91,7 +90,7 @@ impl<'a, 'tcx> TypeFreshener<'a, 'tcx> {
                 Entry::Vacant(entry) => {
                     let index = self.const_freshen_count;
                     self.const_freshen_count += 1;
-                    let ct = ty::Const::new_infer(self.infcx.tcx, freshener(index), ty);
+                    let ct = ty::Const::new_infer(self.infcx.tcx, freshener(index));
                     entry.insert(ct);
                     ct
                 }
@@ -149,7 +148,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for TypeFreshener<'a, 'tcx> {
                         ty::InferConst::Var(inner.const_unification_table().find(v).vid)
                     });
                 drop(inner);
-                self.freshen_const(input, ty::InferConst::Fresh, ct.ty())
+                self.freshen_const(input, ty::InferConst::Fresh)
             }
             ty::ConstKind::Infer(ty::InferConst::EffectVar(v)) => {
                 let mut inner = self.infcx.inner.borrow_mut();
@@ -158,7 +157,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for TypeFreshener<'a, 'tcx> {
                         ty::InferConst::EffectVar(inner.effect_unification_table().find(v).vid)
                     });
                 drop(inner);
-                self.freshen_const(input, ty::InferConst::Fresh, ct.ty())
+                self.freshen_const(input, ty::InferConst::Fresh)
             }
             ty::ConstKind::Infer(ty::InferConst::Fresh(i)) => {
                 if i >= self.const_freshen_count {
diff --git a/compiler/rustc_infer/src/infer/mod.rs b/compiler/rustc_infer/src/infer/mod.rs
index e9a4cc3e04b..1f6c534fbec 100644
--- a/compiler/rustc_infer/src/infer/mod.rs
+++ b/compiler/rustc_infer/src/infer/mod.rs
@@ -392,18 +392,18 @@ impl<'tcx> ty::InferCtxtLike for InferCtxt<'tcx> {
         self.opportunistic_resolve_float_var(vid)
     }
 
-    fn opportunistic_resolve_ct_var(&self, vid: ConstVid, ty: Ty<'tcx>) -> ty::Const<'tcx> {
+    fn opportunistic_resolve_ct_var(&self, vid: ConstVid) -> ty::Const<'tcx> {
         match self.probe_const_var(vid) {
             Ok(ct) => ct,
-            Err(_) => ty::Const::new_var(self.tcx, self.root_const_var(vid), ty),
+            Err(_) => ty::Const::new_var(self.tcx, self.root_const_var(vid)),
         }
     }
 
-    fn opportunistic_resolve_effect_var(&self, vid: EffectVid, ty: Ty<'tcx>) -> ty::Const<'tcx> {
+    fn opportunistic_resolve_effect_var(&self, vid: EffectVid) -> ty::Const<'tcx> {
         match self.probe_effect_var(vid) {
             Some(ct) => ct,
             None => {
-                ty::Const::new_infer(self.tcx, InferConst::EffectVar(self.root_effect_var(vid)), ty)
+                ty::Const::new_infer(self.tcx, InferConst::EffectVar(self.root_effect_var(vid)))
             }
         }
     }
@@ -832,9 +832,7 @@ impl<'tcx> InferCtxt<'tcx> {
         (0..table.len())
             .map(|i| ty::EffectVid::from_usize(i))
             .filter(|&vid| table.probe_value(vid).is_unknown())
-            .map(|v| {
-                ty::Const::new_infer(self.tcx, ty::InferConst::EffectVar(v), self.tcx.types.bool)
-            })
+            .map(|v| ty::Const::new_infer(self.tcx, ty::InferConst::EffectVar(v)))
             .collect()
     }
 
@@ -993,27 +991,22 @@ impl<'tcx> InferCtxt<'tcx> {
         Ty::new_var(self.tcx, vid)
     }
 
-    pub fn next_const_var(&self, ty: Ty<'tcx>, span: Span) -> ty::Const<'tcx> {
-        self.next_const_var_with_origin(ty, ConstVariableOrigin { span, param_def_id: None })
+    pub fn next_const_var(&self, span: Span) -> ty::Const<'tcx> {
+        self.next_const_var_with_origin(ConstVariableOrigin { span, param_def_id: None })
     }
 
-    pub fn next_const_var_with_origin(
-        &self,
-        ty: Ty<'tcx>,
-        origin: ConstVariableOrigin,
-    ) -> ty::Const<'tcx> {
+    pub fn next_const_var_with_origin(&self, origin: ConstVariableOrigin) -> ty::Const<'tcx> {
         let vid = self
             .inner
             .borrow_mut()
             .const_unification_table()
             .new_key(ConstVariableValue::Unknown { origin, universe: self.universe() })
             .vid;
-        ty::Const::new_var(self.tcx, vid, ty)
+        ty::Const::new_var(self.tcx, vid)
     }
 
     pub fn next_const_var_in_universe(
         &self,
-        ty: Ty<'tcx>,
         span: Span,
         universe: ty::UniverseIndex,
     ) -> ty::Const<'tcx> {
@@ -1024,7 +1017,7 @@ impl<'tcx> InferCtxt<'tcx> {
             .const_unification_table()
             .new_key(ConstVariableValue::Unknown { origin, universe })
             .vid;
-        ty::Const::new_var(self.tcx, vid, ty)
+        ty::Const::new_var(self.tcx, vid)
     }
 
     pub fn next_const_var_id(&self, origin: ConstVariableOrigin) -> ConstVid {
@@ -1135,15 +1128,7 @@ impl<'tcx> InferCtxt<'tcx> {
                     .const_unification_table()
                     .new_key(ConstVariableValue::Unknown { origin, universe: self.universe() })
                     .vid;
-                ty::Const::new_var(
-                    self.tcx,
-                    const_var_id,
-                    self.tcx
-                        .type_of(param.def_id)
-                        .no_bound_vars()
-                        .expect("const parameter types cannot be generic"),
-                )
-                .into()
+                ty::Const::new_var(self.tcx, const_var_id).into()
             }
         }
     }
@@ -1157,7 +1142,7 @@ impl<'tcx> InferCtxt<'tcx> {
             .no_bound_vars()
             .expect("const parameter types cannot be generic");
         debug_assert_eq!(self.tcx.types.bool, ty);
-        ty::Const::new_infer(self.tcx, ty::InferConst::EffectVar(effect_vid), ty).into()
+        ty::Const::new_infer(self.tcx, ty::InferConst::EffectVar(effect_vid)).into()
     }
 
     /// Given a set of generics defined on a type or impl, returns the generic parameters mapping each
@@ -1469,10 +1454,10 @@ impl<'tcx> InferCtxt<'tcx> {
                     .or_insert_with(|| self.infcx.next_ty_var(self.span).into())
                     .expect_ty()
             }
-            fn replace_const(&mut self, bv: ty::BoundVar, ty: Ty<'tcx>) -> ty::Const<'tcx> {
+            fn replace_const(&mut self, bv: ty::BoundVar) -> ty::Const<'tcx> {
                 self.map
                     .entry(bv)
-                    .or_insert_with(|| self.infcx.next_const_var(ty, self.span).into())
+                    .or_insert_with(|| self.infcx.next_const_var(self.span).into())
                     .expect_const()
             }
         }
@@ -1526,11 +1511,11 @@ impl<'tcx> InferCtxt<'tcx> {
         &self,
         param_env: ty::ParamEnv<'tcx>,
         unevaluated: ty::UnevaluatedConst<'tcx>,
-        ty: Ty<'tcx>,
         span: Span,
     ) -> Result<ty::Const<'tcx>, ErrorHandled> {
         match self.const_eval_resolve(param_env, unevaluated, span) {
-            Ok(Some(val)) => Ok(ty::Const::new_value(self.tcx, val, ty)),
+            // THISPR
+            Ok(Some(val)) => Ok(ty::Const::new_value(self.tcx, val, todo!())),
             Ok(None) => {
                 let tcx = self.tcx;
                 let def_id = unevaluated.def;
@@ -1964,11 +1949,6 @@ fn replace_param_and_infer_args_with_placeholder<'tcx>(
 
         fn fold_const(&mut self, c: ty::Const<'tcx>) -> ty::Const<'tcx> {
             if let ty::ConstKind::Infer(_) = c.kind() {
-                let ty = c.ty();
-                // If the type references param or infer then ICE ICE ICE
-                if ty.has_non_region_param() || ty.has_non_region_infer() {
-                    bug!("const `{c}`'s type should not reference params or types");
-                }
                 ty::Const::new_placeholder(
                     self.tcx,
                     ty::PlaceholderConst {
@@ -1979,7 +1959,6 @@ fn replace_param_and_infer_args_with_placeholder<'tcx>(
                             idx
                         }),
                     },
-                    ty,
                 )
             } else {
                 c.super_fold_with(self)
diff --git a/compiler/rustc_infer/src/infer/relate/generalize.rs b/compiler/rustc_infer/src/infer/relate/generalize.rs
index aaea3b4820b..225c126fcf8 100644
--- a/compiler/rustc_infer/src/infer/relate/generalize.rs
+++ b/compiler/rustc_infer/src/infer/relate/generalize.rs
@@ -653,7 +653,7 @@ impl<'tcx> TypeRelation<'tcx> for Generalizer<'_, 'tcx> {
                             {
                                 variable_table.union(vid, new_var_id);
                             }
-                            Ok(ty::Const::new_var(self.tcx(), new_var_id, c.ty()))
+                            Ok(ty::Const::new_var(self.tcx(), new_var_id))
                         }
                     }
                 }
@@ -671,11 +671,7 @@ impl<'tcx> TypeRelation<'tcx> for Generalizer<'_, 'tcx> {
                     args,
                     args,
                 )?;
-                Ok(ty::Const::new_unevaluated(
-                    self.tcx(),
-                    ty::UnevaluatedConst { def, args },
-                    c.ty(),
-                ))
+                Ok(ty::Const::new_unevaluated(self.tcx(), ty::UnevaluatedConst { def, args }))
             }
             ty::ConstKind::Placeholder(placeholder) => {
                 if self.for_universe.can_name(placeholder.universe) {
diff --git a/compiler/rustc_infer/src/infer/relate/higher_ranked.rs b/compiler/rustc_infer/src/infer/relate/higher_ranked.rs
index 70ed7cf9af1..d3001eb5838 100644
--- a/compiler/rustc_infer/src/infer/relate/higher_ranked.rs
+++ b/compiler/rustc_infer/src/infer/relate/higher_ranked.rs
@@ -43,11 +43,10 @@ impl<'tcx> InferCtxt<'tcx> {
                     ty::PlaceholderType { universe: next_universe, bound: bound_ty },
                 )
             },
-            consts: &mut |bound_var: ty::BoundVar, ty| {
+            consts: &mut |bound_var: ty::BoundVar| {
                 ty::Const::new_placeholder(
                     self.tcx,
                     ty::PlaceholderConst { universe: next_universe, bound: bound_var },
-                    ty,
                 )
             },
         };
diff --git a/compiler/rustc_infer/src/infer/snapshot/fudge.rs b/compiler/rustc_infer/src/infer/snapshot/fudge.rs
index 4408251c99d..a086c82c92e 100644
--- a/compiler/rustc_infer/src/infer/snapshot/fudge.rs
+++ b/compiler/rustc_infer/src/infer/snapshot/fudge.rs
@@ -244,7 +244,7 @@ impl<'a, 'tcx> TypeFolder<TyCtxt<'tcx>> for InferenceFudger<'a, 'tcx> {
                 // Recreate it with a fresh variable here.
                 let idx = vid.index() - self.const_vars.0.start.index();
                 let origin = self.const_vars.1[idx];
-                self.infcx.next_const_var_with_origin(ct.ty(), origin)
+                self.infcx.next_const_var_with_origin(origin)
             } else {
                 ct
             }