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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/109230] [13 Regression] Maybe wrong code for
 opus package on aarch64 since r13-4122-g1bc7efa948f751
Date: Tue, 21 Mar 2023 16:27:32 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109230

--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
--- gcc/match.pd.jj     2023-02-18 12:38:30.967022708 +0100
+++ gcc/match.pd        2023-03-21 17:24:54.964665797 +0100
@@ -8096,6 +8096,7 @@ and,
        scalar_mode inner_mode =3D GET_MODE_INNER (vec_mode);
      }
      (if (sel.series_p (0, 2, 0, 2)
+         && sel.series_p (1, 2, nelts + 1, 2)
          && GET_MODE_2XWIDER_MODE (inner_mode).exists (&wide_elt_mode)
          && multiple_p (GET_MODE_NUNITS (vec_mode), 2, &wide_nunits)
          && related_vector_mode (vec_mode, wide_elt_mode,
seems to indeed fix this.=