[Bug target/64231] [5 Regression] SIGSEGV building glibc on aarch64-linux-gnu from r217852

[sandra at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64231

--- Comment #12 from Sandra Loosemore <sandra at codesourcery dot com> ---
I'm using a 4.7.3 based gcc as the host compiler (built from one of our own
CodeBench release branches).

Regardless of whether the actual failure is reproducible, if you look at the
code I pointed at in comment 7, there is clearly a bug here:  if
force_const_mem returns NULL, GCC will crash, not just here but in several
other places as well.