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From: "ubizjak at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/115452] ICE when dump stv2 for
 gcc.target/i386/pr70322-2.c with -march=cascadelake
Date: Wed, 12 Jun 2024 08:11:39 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D115452

--- Comment #1 from Uro=C5=A1 Bizjak <ubizjak at gmail dot com> ---
(In reply to Hongtao Liu from comment #0)
> ------------cut from i386-features.cc:1056---------------
>=20
>       if (dump_file)
>         fprintf (dump_file, "  Preloading operand for insn %d into r%d\n",
>                  INSN_UID (insn), REGNO (tmp));
> --------------cut end-------------------------------
>=20
> Looks like tmp is SUBREG.

reg_or_subregno should take care for this.=