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From: "stefansf at linux dot ibm.com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug tree-optimization/108687] [13 Regression] Non-termination since
 r13-5630-g881bf8de9b0
Date: Thu, 09 Feb 2023 20:07:01 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: tree-optimization
X-Bugzilla-Version: 13.0
X-Bugzilla-Keywords: compile-time-hog
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D108687

--- Comment #8 from Stefan Schulze Frielinghaus <stefansf at linux dot ibm.=
com> ---
I came up with a cross compiler where I can reproduce it:

FROM fedora:37
RUN dnf -y upgrade \
  && dnf -y install 'dnf-command(builddep)' \
  && dnf -y builddep gcc \
  && dnf -y install binutils-s390x-linux-gnu git \
  && dnf clean metadata
RUN git clone --depth 1 https://gcc.gnu.org/git/gcc.git \
  && mkdir /build \
  && cd /build \
  && /gcc/configure --target=3Ds390x-linux-gnu \
                    --enable-languages=3Dc \
                    --disable-nls \
                    --without-headers \
                    --disable-multilib \
  && make -j$(nproc) all-gcc \
  && make install-gcc

Running inside the container

$ /usr/local/bin/s390x-linux-gnu-gcc -O3 -march=3Dz13 -c t.c

does not terminate for me. Hope this makes debugging easier. If you need
anything else just let me know.=