[Bug sanitizer/63850] Building TSAN for Aarch64 results in assembler Error

[dvyukov at google dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63850

--- Comment #3 from Dmitry Vyukov <dvyukov at google dot com> ---
Sure, you can do local experimentation in gcc.
Yes, gcc Makefile will need to be updated as well.

But I am more concerned about shadow memory layout. Tsan mapping is somewhat
different from asan.