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const_eval and codegen: audit uses of is_zst

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This commit is contained in:
Ralf Jung 2023-08-27 18:12:34 +02:00
parent bf91321e0f
commit b2ebf1c23f
12 changed files with 42 additions and 29 deletions
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4
compiler/rustc_codegen_llvm/src/debuginfo/metadata.rs
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@ -445,9 +445,9 @@ pub fn type_di_node<'ll, 'tcx>(cx: &CodegenCx<'ll, 'tcx>, t: Ty<'tcx>) -> &'ll D
ty::RawPtr(ty::TypeAndMut { ty: pointee_type, .. }) | ty::Ref(_, pointee_type, _) => {
build_pointer_or_reference_di_node(cx, t, pointee_type, unique_type_id)
}
// Box<T, A> may have a non-ZST allocator A. In that case, we
// Box<T, A> may have a non-1-ZST allocator A. In that case, we
// cannot treat Box<T, A> as just an owned alias of `*mut T`.
ty::Adt(def, args) if def.is_box() && cx.layout_of(args.type_at(1)).is_zst() => {
ty::Adt(def, args) if def.is_box() && cx.layout_of(args.type_at(1)).is_1zst() => {
build_pointer_or_reference_di_node(cx, t, t.boxed_ty(), unique_type_id)
}
ty::FnDef(..) | ty::FnPtr(_) => build_subroutine_type_di_node(cx, unique_type_id),