Regressions on trunk at revision 249310 vs revision 249246

[Intel Automatic Testing System [Intel64 Core AVX2]]

New failures:
FAIL: gcc.dg/vect/pr65947-9.c -flto -ffat-lto-objects  scan-tree-dump-not vect "LOOP VECTORIZED"
FAIL: gcc.dg/vect/pr65947-9.c -flto -ffat-lto-objects  scan-tree-dump-not vect "LOOP VECTORIZED"
FAIL: gcc.dg/vect/pr65947-9.c scan-tree-dump-not vect "LOOP VECTORIZED"
FAIL: gcc.dg/vect/pr65947-9.c scan-tree-dump-not vect "LOOP VECTORIZED"

New passes: