[OpenMP] Disable early vectorization of loads/stores in the runtime

We are having a hard time optimizing some vectorized loads/stores later
on which causes this optimization to degrade performance.

Differential Revision: https://reviews.llvm.org/D158656

GitOrigin-RevId: 80906ce48d5bb28e06d0a113e7d62eb1358c8ecc
1 file changed