Regressions on trunk at revision 243473 vs revision 243433

[H.J. Lu Intel64 Core i7]

New failures:
FAIL: gcc.dg/attr-alloc_size-3.c (test for excess errors)
FAIL: gcc.dg/attr-alloc_size-3.c  (test for warnings, line 445)
FAIL: gfortran.dg/charlen_15.f90   -O0  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O0  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O0  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O0  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O1  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O1  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O2  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O2  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O2  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O2  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O3 -g  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O3 -g  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -Os  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -Os  (internal compiler error)
FAIL: gfortran.dg/charlen_15.f90   -Os  (test for excess errors)
FAIL: gfortran.dg/charlen_15.f90   -Os  (test for excess errors)

New passes: