Use its own `TypeckResults` to avoid ICE

1 files changed, 8 insertions, 3 deletions

diff --git a/compiler/rustc_save_analysis/src/lib.rs b/compiler/rustc_save_analysis/src/lib.rs
index f6434689fec..48d15370ee3 100644
--- a/compiler/rustc_save_analysis/src/lib.rs
+++ b/compiler/rustc_save_analysis/src/lib.rs
@@ -630,9 +630,14 @@ impl<'tcx> SaveContext<'tcx> {
             })
             | Node::Ty(&hir::Ty { kind: hir::TyKind::Path(ref qpath), .. }) => match qpath {
                 hir::QPath::Resolved(_, path) => path.res,
-                hir::QPath::TypeRelative(..) | hir::QPath::LangItem(..) => self
-                    .maybe_typeck_results
-                    .map_or(Res::Err, |typeck_results| typeck_results.qpath_res(qpath, hir_id)),
+                hir::QPath::TypeRelative(..) | hir::QPath::LangItem(..) => {
+                    // #75962: `self.typeck_results` may be different from the `hir_id`'s result.
+                    if self.tcx.has_typeck_results(hir_id.owner.to_def_id()) {
+                        self.tcx.typeck(hir_id.owner).qpath_res(qpath, hir_id)
+                    } else {
+                        Res::Err
+                    }
+                }
             },
 
             Node::Binding(&hir::Pat {