[Bug tree-optimization/112281] [12/13/14 Regression] wrong code at -O3 on x86_64-linux-gnu

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112281

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
-fno-tree-loop-distribution fixes the issue.

Looks like loop distribution is pulling out the assignment of `b = d[c + 1];`
from the loop even though the loop does assignment to a field of that `d[c +
1].a = 0;`.