[Bug target/79239] [7 regression] ICE in extract_insn, at recog.c:2311 (error: unrecognizable insn)

[tulipawn at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79239

--- Comment #2 from PeteVine <tulipawn at gmail dot com> ---
gcc -O2 or above elicits the ICE, configured with:

--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=gcc4-compatible --disable-libstdcxx-dual-abi
--enable-gnu-unique-object --disable-libitm --disable-libquadmath
--enable-plugin --with-system-zlib --disable-browser-plugin
--with-arch-directory=arm --enable-multiarch --enable-multilib
--disable-sjlj-exceptions --with-arch=armv7-a --with-fpu=vfpv3
--with-float=hard --with-mode=arm --disable-werror --enable-multilib
--build=arm-linux-gnueabihf --host=arm-linux-gnueabihf
--target=arm-linux-gnueabihf --enable-checking=release