Regressions on trunk at revision 226748 vs revision 226743

[H.J. Lu ia32]

New failures:

New passes:
FAIL: gfortran.dg/ieee/large_1.f90   -O0  (test for excess errors)
FAIL: gfortran.dg/ieee/large_1.f90   -O1  (test for excess errors)
FAIL: gfortran.dg/ieee/large_1.f90   -O2  (test for excess errors)
FAIL: gfortran.dg/ieee/large_1.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  (test for excess errors)
FAIL: gfortran.dg/ieee/large_1.f90   -O3 -g  (test for excess errors)
FAIL: gfortran.dg/ieee/large_1.f90   -Os  (test for excess errors)