Regressions on trunk at revision 189878 vs revision 189867

[H.J. Lu Intel64 LTO/FDO]

New failures:

New passes:
FAIL: g++.dg/opt/pr44919.C -std=gnu++11 (internal compiler error)
FAIL: g++.dg/opt/pr44919.C -std=gnu++11 (test for excess errors)
FAIL: g++.dg/opt/pr44919.C -std=gnu++98 (internal compiler error)
FAIL: g++.dg/opt/pr44919.C -std=gnu++98 (test for excess errors)
FAIL: gcc.target/i386/pr45352-2.c (internal compiler error)
FAIL: gcc.target/i386/pr45352-2.c (test for excess errors)
FAIL: gcc.target/i386/pr45352.c (internal compiler error)
FAIL: gcc.target/i386/pr45352.c (test for excess errors)
FAIL: gfortran.dg/pr42294.f  -O  (internal compiler error)
FAIL: gfortran.dg/pr42294.f  -O  (test for excess errors)