https://gcc.gnu.org/bugzilla/show_bug.cgi?id=125476
--- Comment #4 from Zhongyao Chen <chenzhongyao.hit at gmail dot com> --- For this corner case, I think either result is fine. Scalar code should not be worse here, since scalar and vector throughput are about the same. These tests are sensitive to cost model changes though. How should we handle regression like this? I also tried -fno-vect-cost-model, but that did not help here.
