[Bug target/49146] segv from libgcc_s when raising an exception, or unwinding stack with backtrace with ms_abi

[woodard at redhat dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49146

--- Comment #4 from Ben Woodard <woodard at redhat dot com> ---
Created attachment 30127
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=30127&action=edit
Patch from Ariel that prevents the segv