[Bug driver/89014] Use-after-free in aarch64 -march=native

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89014

--- Comment #4 from ktkachov at gcc dot gnu.org ---
Yeah, the fix looks right.
For the rest of the assembler errors we need the patch at:
https://gcc.gnu.org/ml/gcc-patches/2019-01/msg00562.html