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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/108086] internal compiler error: in
 set_accesses, at rtl-ssa/internals.inl:449
Date: Wed, 14 Dec 2022 08:47:54 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108086

--- Comment #5 from Richard Biener <rguenth at gcc dot gnu.org> ---
Ick.

gcc/rtl-ssa/insns.h:  unsigned int m_num_defs : 16;

(gdb) p num_defs
$1 =3D 86149
(gdb) p m_num_defs
$2 =3D 20613

(gdb) p m_rtl
$3 =3D (rtx_insn *) 0x0
(gdb) p is_phi ()
$4 =3D false
(gdb) p is_bb_head ()
$5 =3D false
(gdb) p is_artificial ()
$7 =3D true

m_bb is for ENTRY and for some reason that has a very big live-out bitmap?!

There might be a conservative way to handle this and not blow up where
it does right now?=