Regressions on trunk at revision 239567 vs revision 239553

[H.J. Lu Intel64]

New failures:
FAIL: gcc.dg/tree-ssa/pr71347.c scan-tree-dump-not optimized ".* = MEM.*;"
FAIL: gcc.dg/tree-ssa/pr71347.c scan-tree-dump-not optimized ".* = MEM.*;"

New passes:
FAIL: gcc.dg/autopar/pr46193.c scan-tree-dump-times parloops2 "parallelizing inner loop" 2
FAIL: gcc.dg/autopar/pr46193.c scan-tree-dump-times parloops2 "parallelizing inner loop" 2
FAIL: gfortran.dg/graphite/pr68279.f90   -O  (internal compiler error)
FAIL: gfortran.dg/graphite/pr68279.f90   -O  (test for excess errors)