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From: "linkw at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug rtl-optimization/90259] ICE: verify_flow_info failed (error:
 missing REG_EH_REGION note at the end of bb 4)
Date: Tue, 01 Nov 2022 07:19:20 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D90259

--- Comment #4 from Kewen Lin <linkw at gcc dot gnu.org> ---
(In reply to Arseny Solokha from comment #3)
> Aha! I've just managed to reproduce it even w/ the current gcc 13 snapshot
> by adding -fstack-protector-all to the list of command line arguments:
>=20
> % powerpc-e300c3-linux-gnu-g++-13 -m32 -O1 -ffloat-store -fgcse
> -fnon-call-exceptions -fno-forward-propagate -fno-omit-frame-pointer -c
> svj3x11t.cc -fstack-protector-all
> svj3x11t.cc: In static member function 'static ar p<ar(j ...), i>::as(con=
st
> int&, j ...) [with ar =3D void; i =3D q::r; j =3D {o}]':
> svj3x11t.cc:30:65: error: missing REG_EH_REGION note at the end of bb 6
>    30 |   static ar as(const int &p1, j...) { (*ao<i>::ap(p1))(j()...); }
>       |                                                                 ^

It's weird that I still can't reproduce this with the extra option
-fstack-protector-all, I double checked your provided configuration command,
although the host and build are different, the others are the same as mine.
Could you provide one dump file for -mdebug=3Dtarget?=