Auto merge of #150041 - Zalathar:rollup-sa5nez6, r=Zalathar

Rollup of 13 pull requests

Successful merges:

 - rust-lang/rust#148756 (Warn on codegen attributes on required trait methods)
 - rust-lang/rust#148790 (Add new Tier-3 target: riscv64im-unknown-none-elf)
 - rust-lang/rust#149271 (feat: dlopen Enzyme)
 - rust-lang/rust#149459 (std: sys: fs: uefi: Implement set_times and set_perm)
 - rust-lang/rust#149771 (bootstrap readme: make easy to read when editor wrapping is not enabled)
 - rust-lang/rust#149856 (Provide an extended framework for type visit, for use in rust-analyzer)
 - rust-lang/rust#149950 (Simplify how inline asm handles `MaybeUninit`)
 - rust-lang/rust#150014 (Metadata loader cleanups)
 - rust-lang/rust#150021 (document that mpmc channels deliver an item to (at most) one receiver)
 - rust-lang/rust#150029 (Update books)
 - rust-lang/rust#150031 (assert impossible branch is impossible)
 - rust-lang/rust#150034 (do not add `I-prioritize` when `F-*` labels are present)
 - rust-lang/rust#150036 (Use the embeddable filename for coverage artifacts)

r? `@ghost`
`@rustbot` modify labels: rollup

Author: bors

src/inline_asm.rs

@@ -857,19 +857,9 @@ fn call_inline_asm<'tcx>(
 
 fn asm_clif_type<'tcx>(fx: &FunctionCx<'_, '_, 'tcx>, ty: Ty<'tcx>) -> Option<types::Type> {
     match ty.kind() {
-        // Adapted from https://github.com/rust-lang/rust/blob/f3c66088610c1b80110297c2d9a8b5f9265b013f/compiler/rustc_hir_analysis/src/check/intrinsicck.rs#L136-L151
+        // Adapted from https://github.com/rust-lang/rust/blob/df44a57fd29fca899ce473f85ed64efd0708dd7c/compiler/rustc_hir_typeck/src/inline_asm.rs#L180-L183
         ty::Adt(adt, args) if fx.tcx.is_lang_item(adt.did(), LangItem::MaybeUninit) => {
-            let fields = &adt.non_enum_variant().fields;
-            let ty = fields[FieldIdx::ONE].ty(fx.tcx, args);
-            let ty::Adt(ty, args) = ty.kind() else {
-                unreachable!("expected first field of `MaybeUninit` to be an ADT")
-            };
-            assert!(
-                ty.is_manually_drop(),
-                "expected first field of `MaybeUninit` to be `ManuallyDrop`"
-            );
-            let fields = &ty.non_enum_variant().fields;
-            let ty = fields[FieldIdx::ZERO].ty(fx.tcx, args);
+            let ty = args.type_at(0);
             fx.clif_type(ty)
         }
         _ => fx.clif_type(ty),