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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/95264] Infinite Loop When Compiling Templated C++ code at
 -O1 and above
Date: Fri, 22 May 2020 09:14:25 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D95264

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed.  We do have (a) huuuge function here, containing 539237 basic bl=
ocks
after early inlining which is

void polyquad::BaseDomain<Derived, T, Ndim, Norbits>::expand(const VectorXT=
&,
polyquad::BaseDomain<Derived, T, Ndim, Norbits>::MatrixPtsT&) const [with
Derived =3D
polyquad::TetDomain<boost::multiprecision::number<boost::multiprecision::ba=
ckends::cpp_bin_float<100>
> >; T =3D
boost::multiprecision::number<boost::multiprecision::backends::cpp_bin_floa=
t<100>
>; int Ndim =3D 3; int Norbits =3D 5]

obviously every IL walk will be bad here.  Didn't yet find the actual wall =
it
runs into, still runs...=