Regressions on trunk at revision 155669 vs revision 155647

[H.J. Lu Intel64]

New failures:

New passes:
FAIL: gcc.dg/vect/vect-reduc-1.c scan-tree-dump-times vect "vectorized 3 loops" 1
FAIL: gcc.dg/vect/vect-reduc-1.c scan-tree-dump-times vect "vectorized 3 loops" 1
FAIL: libgomp.fortran/recursion1.f90  -O0  execution test
FAIL: libgomp.fortran/recursion1.f90  -O0  execution test
FAIL: libgomp.fortran/recursion1.f90  -O1  execution test
FAIL: libgomp.fortran/recursion1.f90  -O1  execution test
FAIL: libgomp.fortran/recursion1.f90  -O2  execution test
FAIL: libgomp.fortran/recursion1.f90  -O2  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -fomit-frame-pointer  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -fomit-frame-pointer  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -g  execution test
FAIL: libgomp.fortran/recursion1.f90  -O3 -g  execution test
FAIL: libgomp.fortran/recursion1.f90  -Os  execution test
FAIL: libgomp.fortran/recursion1.f90  -Os  execution test