[Bug target/125436] calls to __tls_get_addr in ms_abi with -fPIC function clobber callee-save resisters

[puetzk at puetzk dot org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125436

--- Comment #13 from Kevin Puetz <puetzk at puetzk dot org> ---
That asm certainly looks much better, I will think about how best to bootstrap
our whole wineg++ stack on top of that test-branch compiler and try to prove it
out in the original case.