[Bug target/78105] ICE during LTO bootstrap on AARCH64 with extra options

[tulipawn at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78105

--- Comment #7 from PeteVine <tulipawn at gmail dot com> ---
Restarted the whole thing from scratch using gcc 5.4 and it segfaulted again.

../../../libgcc/libgcc2.c: In function ‘__powitf2’:
../../../libgcc/libgcc2.c:1851:1: internal compiler error: Segmentation fault
 }
 ^
CXX/CFLAGS as above, configured as follows:

../configure --enable-languages=c,c++,fortran --prefix=/usr/gcc7
--program-suffix=-7 --enable-shared --enable-linker-build-id
--libexecdir=/usr/gcc7/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/gcc7/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new
--enable-gnu-unique-object --disable-libquadmath --enable-plugin
--with-system-zlib --disable-browser-plugin --with-arch-directory=aarch64
--enable-multiarch --enable-fix-cortex-a53-843419 --disable-werror
--build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnu
--enable-checking=release --with-build-config=bootstrap-lto