Regressions on trunk at revision 198729 vs revision 198707

[H.J. Lu Intel64 Core 2/i7]

New failures:

New passes:
FAIL: gcc.dg/vect/vect-28.c -flto execution test
FAIL: gcc.dg/vect/vect-28.c execution test
FAIL: gfortran.dg/char_result_3.f90  -O3 -fomit-frame-pointer  execution test
FAIL: gfortran.dg/char_result_3.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: gfortran.dg/char_result_3.f90  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: gfortran.dg/char_result_3.f90  -O3 -g  execution test
FAIL: gfortran.dg/cray_pointers_2.f90  -O  execution test
FAIL: gfortran.dg/cray_pointers_2.f90  -O  execution test
FAIL: libgomp.fortran/threadprivate2.f90  -O3 -fomit-frame-pointer  execution test
FAIL: libgomp.fortran/threadprivate2.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: libgomp.fortran/threadprivate2.f90  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: libgomp.fortran/threadprivate2.f90  -O3 -g  execution test