Regressions on trunk at revision 230836 vs revision 230827

[H.J. Lu ia32 Core i7]

New failures:
FAIL: gfortran.dg/pr68227.f90   -O  (internal compiler error)
FAIL: gfortran.dg/pr68227.f90   -O  (test for excess errors)

New passes:
FAIL: gcc.dg/vect/pr59984.c -flto -ffat-lto-objects (internal compiler error)
FAIL: gcc.dg/vect/pr59984.c -flto -ffat-lto-objects (test for excess errors)
FAIL: gcc.dg/vect/pr62021.c -flto -ffat-lto-objects (internal compiler error)
FAIL: gcc.dg/vect/pr62021.c -flto -ffat-lto-objects (test for excess errors)