https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88282
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
One related testcase that fails:
$ aarch64-linux-gnu-gcc
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr41470.c
-fstack-clash-protection -O2 -fno-tree-ccp
during RTL pass: reload
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr41470.c: In function ‘bf’:
/home/marxin/Programming/gcc/gcc/testsuite/gcc.dg/pr41470.c:22:1: internal
compiler error: Segmentation fault
22 | }
| ^
0xa88a2f crash_signal
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/toplev.c:326
0x7ffff6bc310f ???
/usr/src/debug/glibc-2.27-6.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x7329b1 df_install_refs
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:2379
0x732a94 df_install_refs
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:2425
0x732a94 df_refs_add_to_chains
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:2425
0x738fae df_bb_refs_record(int, bool)
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:3350
0x7391bc df_scan_blocks()
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/df-scan.c:588
0x8f127d do_reload
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/ira.c:5533
0x8f127d execute
/home/marxin/BIG/buildbot/buildworker/marxinbox-gcc-trunk-aarch64/build/gcc/ira.c:5653
