[Bug bootstrap/78985] [7 Regression] profiledbootstrap failure by -Wuninitialized

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78985

--- Comment #7 from Martin Liška <marxin at gcc dot gnu.org> ---
On aarch64 r242068 (Date:   Fri Nov 11 12:53:36 2016 +0000)
fails with error in gcc/config/aarch64/cortex-a57-fma-steering.c.

I'm going to test merge base of gcc-6-branch and current trunk.