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DrMeepster 2022-02-16 16:52:06 -08:00 committed by GitHub
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compiler/rustc_codegen_llvm/src/type_of.rs
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@ -330,6 +330,8 @@ impl<'tcx> LayoutLlvmExt<'tcx> for TyAndLayout<'tcx> {
ty::Ref(..) | ty::RawPtr(_) => { ty::Ref(..) | ty::RawPtr(_) => {
return self.field(cx, index).llvm_type(cx); return self.field(cx, index).llvm_type(cx);
} }
// only wide pointer boxes are handled as pointers
// thin pointer boxes with scalar allocators are handled by the general logic below
ty::Adt(def, substs) if def.is_box() && cx.layout_of(substs.type_at(1)).is_zst() => { ty::Adt(def, substs) if def.is_box() && cx.layout_of(substs.type_at(1)).is_zst() => {
let ptr_ty = cx.tcx.mk_mut_ptr(self.ty.boxed_ty()); let ptr_ty = cx.tcx.mk_mut_ptr(self.ty.boxed_ty());
return cx.layout_of(ptr_ty).scalar_pair_element_llvm_type(cx, index, immediate); return cx.layout_of(ptr_ty).scalar_pair_element_llvm_type(cx, index, immediate);