[Bug c++/91006] [10 Regression] Several test suite fails on *darwin* after r272618

[hubicka at ucw dot cz]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91006

--- Comment #2 from Jan Hubicka <hubicka at ucw dot cz> ---
Martin,
I also guess an interesting question is why extra MEM_REF prevents
ipa-sra from considering the function argument dead?

Honza