[Bug sanitizer/78663] [7 Regression] Hundreds of asan failures on x86_64-apple-darwin10 at r243019

[m.ostapenko at samsung dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78663

--- Comment #7 from Maxim Ostapenko <m.ostapenko at samsung dot com> ---
Created attachment 40646
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40646&action=edit
Fix 2

Iain, could you test the following patch? This one is likely to be applied
upstream.
As a side note, LLVM folks are not very happy with these patches (they lack of
buildbots to test them). Thus I suspect that for future releases we'll need a)
apply Darwin 10 patches locally or b) disable ASan for Darwin 10.