[Bug middle-end/65414] [5 Regression] ICE while building libgcc after stage 2, bootstrap failure on aarch64-linux-gnu

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65414

--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
While I couldn't reproduce this on aarch64-linux, on arm-linux-gnueabihf
without the revert all my bootstraps since Friday ended up with ICEs, both
profiledbootstrap and normal bootstraps; for --with-default-libstdcxx-abi=c++98
builds somewhere in gnat-tools build (but with corrupted backtraces, didn't
figure out anything useful yet how to debug) and for the default new C++ ABI
builds somewhere during PCH creation in libstdc++.
With the problematic patch reverted normal bootstrap build is now already in
make check phase past the bootstrap failure point, and two differently
configured profiledbootstraps are progressing nicely so far.  But really don't
have a short reproducer for either, sorry.