Regressions on trunk at revision 161806 vs revision 161800

[H.J. Lu]

New failures:

New passes:
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O2  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O2  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -fomit-frame-pointer  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -fomit-frame-pointer  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -g  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -O3 -g  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -Os  execution test
FAIL: gfortran.dg/dynamic_dispatch_6.f03  -Os  execution test