Regressions on trunk at revision 231644 vs revision 231638

[Bill Seurer]

New failures:
FAIL: gfortran.dg/default_format_denormal_2.f90   -O0  execution test
FAIL: gfortran.dg/default_format_denormal_2.f90   -O1  execution test
FAIL: gfortran.dg/default_format_denormal_2.f90   -O2  execution test
FAIL: gfortran.dg/default_format_denormal_2.f90   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/default_format_denormal_2.f90   -O3 -g  execution test
FAIL: gfortran.dg/default_format_denormal_2.f90   -Os  execution test
FAIL: runtime

New passes:
FAIL: gfortran.dg/fmt_g0_7.f08   -O0  execution test
FAIL: gfortran.dg/fmt_g0_7.f08   -O1  execution test
FAIL: gfortran.dg/fmt_g0_7.f08   -O2  execution test
FAIL: gfortran.dg/fmt_g0_7.f08   -O3 -fomit-frame-pointer -funroll-loops -fpeel-loops -ftracer -finline-functions  execution test
FAIL: gfortran.dg/fmt_g0_7.f08   -O3 -g  execution test
FAIL: gfortran.dg/fmt_g0_7.f08   -Os  execution test