Regressions on trunk at revision 236495 vs revision 236361

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/tree-ssa/scev-5.c scan-tree-dump-times optimized "&a" 1
FAIL: gfortran.dg/graphite/pr68279.f90   -O  (internal compiler error)
FAIL: gfortran.dg/graphite/pr68279.f90   -O  (internal compiler error)
FAIL: gfortran.dg/graphite/pr68279.f90   -O  (test for excess errors)
FAIL: gfortran.dg/graphite/pr68279.f90   -O  (test for excess errors)
FAIL: gfortran.dg/parent_result_ref_2.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test

New passes: