[Bug middle-end/114653] Not vectorizing the loop with openmp reduction.

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

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114653

--- Comment #5 from kugan at gcc dot gnu.org ---
ddd for the :
 ref_a: 
_57 = D.4803[_20];
  ref_b: 
D.4803[_20] = _ifc__174;

We get DDR_ARE_DEPENDENT (ddr) == chrec_dont_know. Hence apply_safelen ().