Regressions on trunk at revision 181627 vs revision 181614

[H.J. Lu Intel64 LTO/FDO]

New failures:

New passes:
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1199)
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1199)
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1212)
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1212)
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1226)
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1226)
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1240)
FAIL: 20_util/bind/ref_neg.cc  (test for errors, line 1240)
FAIL: 20_util/bind/ref_neg.cc (test for excess errors)
FAIL: 20_util/bind/ref_neg.cc (test for excess errors)
FAIL: g++.dg/tm/pr45940-3.C -std=gnu++11 (internal compiler error)
FAIL: g++.dg/tm/pr45940-3.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/tm/pr45940-3.C -std=gnu++98 (internal compiler error)
FAIL: g++.dg/tm/pr45940-3.C -std=gnu++98 (test for excess errors)
FAIL: g++.dg/tm/pr45940-4.C -std=gnu++11 (internal compiler error)
FAIL: g++.dg/tm/pr45940-4.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/tm/pr45940-4.C -std=gnu++98 (internal compiler error)
FAIL: g++.dg/tm/pr45940-4.C -std=gnu++98 (test for excess errors)