make LayoutCx not generic

compiler/rustc_ty_utils/src/abi.rs

@@ -358,7 +358,7 @@ fn fn_abi_of_instance<'tcx>(
 
 // Handle safe Rust thin and fat pointers.
 fn adjust_for_rust_scalar<'tcx>(
-    cx: LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: LayoutCx<'tcx>,
     attrs: &mut ArgAttributes,
     scalar: Scalar,
     layout: TyAndLayout<'tcx>,
@@ -448,12 +448,12 @@ fn adjust_for_rust_scalar<'tcx>(
 
 /// Ensure that the ABI makes basic sense.
 fn fn_abi_sanity_check<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     fn_abi: &FnAbi<'tcx, Ty<'tcx>>,
     spec_abi: SpecAbi,
 ) {
     fn fn_arg_sanity_check<'tcx>(
-        cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+        cx: &LayoutCx<'tcx>,
         fn_abi: &FnAbi<'tcx, Ty<'tcx>>,
         spec_abi: SpecAbi,
         arg: &ArgAbi<'tcx, Ty<'tcx>>,
@@ -538,7 +538,7 @@ fn fn_abi_sanity_check<'tcx>(
 // arguments of this method, into a separate `struct`.
 #[tracing::instrument(level = "debug", skip(cx, caller_location, fn_def_id, force_thin_self_ptr))]
 fn fn_abi_new_uncached<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     sig: ty::PolyFnSig<'tcx>,
     extra_args: &[Ty<'tcx>],
     caller_location: Option<Ty<'tcx>>,
@@ -643,7 +643,7 @@ fn fn_abi_new_uncached<'tcx>(
 
 #[tracing::instrument(level = "trace", skip(cx))]
 fn fn_abi_adjust_for_abi<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     fn_abi: &mut FnAbi<'tcx, Ty<'tcx>>,
     abi: SpecAbi,
     fn_def_id: Option<DefId>,

compiler/rustc_ty_utils/src/layout.rs

@@ -79,15 +79,12 @@ fn layout_of<'tcx>(
     Ok(layout)
 }
 
-fn error<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
-    err: LayoutError<'tcx>,
-) -> &'tcx LayoutError<'tcx> {
+fn error<'tcx>(cx: &LayoutCx<'tcx>, err: LayoutError<'tcx>) -> &'tcx LayoutError<'tcx> {
     cx.tcx.arena.alloc(err)
 }
 
 fn univariant_uninterned<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     ty: Ty<'tcx>,
     fields: &IndexSlice<FieldIdx, Layout<'_>>,
     repr: &ReprOptions,
@@ -103,7 +100,7 @@ fn univariant_uninterned<'tcx>(
 }
 
 fn layout_of_uncached<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     ty: Ty<'tcx>,
 ) -> Result<Layout<'tcx>, &'tcx LayoutError<'tcx>> {
     // Types that reference `ty::Error` pessimistically don't have a meaningful layout.
@@ -809,7 +806,7 @@ fn coroutine_saved_local_eligibility(
 
 /// Compute the full coroutine layout.
 fn coroutine_layout<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     ty: Ty<'tcx>,
     def_id: hir::def_id::DefId,
     args: GenericArgsRef<'tcx>,
@@ -1017,7 +1014,7 @@ fn coroutine_layout<'tcx>(
     Ok(layout)
 }
 
-fn record_layout_for_printing<'tcx>(cx: &LayoutCx<'tcx, TyCtxt<'tcx>>, layout: TyAndLayout<'tcx>) {
+fn record_layout_for_printing<'tcx>(cx: &LayoutCx<'tcx>, layout: TyAndLayout<'tcx>) {
     // Ignore layouts that are done with non-empty environments or
     // non-monomorphic layouts, as the user only wants to see the stuff
     // resulting from the final codegen session.
@@ -1068,7 +1065,7 @@ fn record_layout_for_printing<'tcx>(cx: &LayoutCx<'tcx, TyCtxt<'tcx>>, layout: T
 }
 
 fn variant_info_for_adt<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     layout: TyAndLayout<'tcx>,
     adt_def: AdtDef<'tcx>,
 ) -> (Vec<VariantInfo>, Option<Size>) {
@@ -1140,7 +1137,7 @@ fn variant_info_for_adt<'tcx>(
 }
 
 fn variant_info_for_coroutine<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
+    cx: &LayoutCx<'tcx>,
     layout: TyAndLayout<'tcx>,
     def_id: DefId,
     args: ty::GenericArgsRef<'tcx>,

compiler/rustc_ty_utils/src/layout_sanity_check.rs

@@ -2,14 +2,10 @@ use std::assert_matches::assert_matches;
 
 use rustc_middle::bug;
 use rustc_middle::ty::layout::{LayoutCx, TyAndLayout};
-use rustc_middle::ty::TyCtxt;
 use rustc_target::abi::*;
 
 /// Enforce some basic invariants on layouts.
-pub(super) fn sanity_check_layout<'tcx>(
-    cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
-    layout: &TyAndLayout<'tcx>,
-) {
+pub(super) fn sanity_check_layout<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayout<'tcx>) {
     // Type-level uninhabitedness should always imply ABI uninhabitedness.
     if layout.ty.is_privately_uninhabited(cx.tcx, cx.param_env) {
         assert!(layout.abi.is_uninhabited());
@@ -28,8 +24,8 @@ pub(super) fn sanity_check_layout<'tcx>(
     }
 
     /// Yields non-ZST fields of the type
-    fn non_zst_fields<'a, 'tcx>(
-        cx: &'a LayoutCx<'tcx, TyCtxt<'tcx>>,
+    fn non_zst_fields<'tcx, 'a>(
+        cx: &'a LayoutCx<'tcx>,
         layout: &'a TyAndLayout<'tcx>,
     ) -> impl Iterator<Item = (Size, TyAndLayout<'tcx>)> + 'a {
         (0..layout.layout.fields().count()).filter_map(|i| {
@@ -43,10 +39,7 @@ pub(super) fn sanity_check_layout<'tcx>(
         })
     }
 
-    fn skip_newtypes<'tcx>(
-        cx: &LayoutCx<'tcx, TyCtxt<'tcx>>,
-        layout: &TyAndLayout<'tcx>,
-    ) -> TyAndLayout<'tcx> {
+    fn skip_newtypes<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayout<'tcx>) -> TyAndLayout<'tcx> {
         if matches!(layout.layout.variants(), Variants::Multiple { .. }) {
             // Definitely not a newtype of anything.
             return *layout;
@@ -69,7 +62,7 @@ pub(super) fn sanity_check_layout<'tcx>(
         *layout
     }
 
-    fn check_layout_abi<'tcx>(cx: &LayoutCx<'tcx, TyCtxt<'tcx>>, layout: &TyAndLayout<'tcx>) {
+    fn check_layout_abi<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayout<'tcx>) {
         // Verify the ABI mandated alignment and size.
         let align = layout.abi.inherent_align(cx).map(|align| align.abi);
         let size = layout.abi.inherent_size(cx);