Regressions on trunk at revision 271371 vs revision 271280

[H.J. Lu (Intel64)]

New failures:
FAIL: gcc.dg/gimplefe-41.c (internal compiler error)
FAIL: gcc.dg/gimplefe-41.c (test for excess errors)

New passes:
FAIL: gcc.dg/tree-ssa/vector-6.c scan-tree-dump-times ccp1 "Now a gimple register: v" 4
FAIL: gcc.dg/tree-ssa/vector-6.c scan-tree-dump-times ccp1 "Now a gimple register: v" 4
FAIL: libstdc++-xmethods/unique_ptr.cc
FAIL: libstdc++-xmethods/unique_ptr.cc