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-rw-r--r--compiler/rustc_middle/src/ty/layout.rs3
1 files changed, 1 insertions, 2 deletions
diff --git a/compiler/rustc_middle/src/ty/layout.rs b/compiler/rustc_middle/src/ty/layout.rs
index 0cbe57455a1..8f90c7a8845 100644
--- a/compiler/rustc_middle/src/ty/layout.rs
+++ b/compiler/rustc_middle/src/ty/layout.rs
@@ -2483,10 +2483,9 @@ impl<'tcx> ty::Instance<'tcx> {
                 // `src/test/ui/polymorphization/normalized_sig_types.rs`), and codegen not keeping
                 // track of a polymorphization `ParamEnv` to allow normalizing later.
                 let mut sig = match *ty.kind() {
-                    ty::FnDef(def_id, substs) if tcx.sess.opts.debugging_opts.polymorphize => tcx
+                    ty::FnDef(def_id, substs) => tcx
                         .normalize_erasing_regions(tcx.param_env(def_id), tcx.fn_sig(def_id))
                         .subst(tcx, substs),
-                    ty::FnDef(def_id, substs) => tcx.fn_sig(def_id).subst(tcx, substs),
                     _ => unreachable!(),
                 };