compiler: pre-move code for fixing enum layout ICEs

compiler/rustc_ty_utils/src/layout.rs

@@ -30,7 +30,8 @@ use {rustc_abi as abi, rustc_hir as hir};
 use crate::errors::{
     MultipleArrayFieldsSimdType, NonPrimitiveSimdType, OversizedSimdType, ZeroLengthSimdType,
 };
-use crate::layout_sanity_check::sanity_check_layout;
+
+mod invariant;
 
 pub(crate) fn provide(providers: &mut Providers) {
     *providers = Providers { layout_of, ..*providers };
@@ -79,7 +80,7 @@ fn layout_of<'tcx>(
         record_layout_for_printing(&cx, layout);
     }
 
-    sanity_check_layout(&cx, &layout);
+    invariant::partially_check_layout(&cx, &layout);
 
     Ok(layout)
 }

compiler/rustc_ty_utils/src/layout_sanity_check.rs → compiler/rustc_ty_utils/src/layout/invariant.rs

@@ -5,7 +5,7 @@ use rustc_middle::ty::layout::{HasTyCtxt, LayoutCx, TyAndLayout};
 use rustc_target::abi::*;
 
 /// Enforce some basic invariants on layouts.
-pub(super) fn sanity_check_layout<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayout<'tcx>) {
+pub(super) fn partially_check_layout<'tcx>(cx: &LayoutCx<'tcx>, layout: &TyAndLayout<'tcx>) {
     let tcx = cx.tcx();
 
     // Type-level uninhabitedness should always imply ABI uninhabitedness.

compiler/rustc_ty_utils/src/lib.rs

@@ -29,7 +29,6 @@ mod errors;
 mod implied_bounds;
 mod instance;
 mod layout;
-mod layout_sanity_check;
 mod needs_drop;
 mod opaque_types;
 mod representability;