Regressions on trunk at revision 163884 vs revision 163879

[H.J. Lu Intel64]

New failures:

New passes:
FAIL: gfortran.dg/bessel_7.f90  -O0  execution test
FAIL: gfortran.dg/bessel_7.f90  -O1  execution test
FAIL: gfortran.dg/bessel_7.f90  -O2  execution test
FAIL: gfortran.dg/bessel_7.f90  -O3 -fomit-frame-pointer  execution test
FAIL: gfortran.dg/bessel_7.f90  -O3 -fomit-frame-pointer -funroll-all-loops -finline-functions  execution test
FAIL: gfortran.dg/bessel_7.f90  -O3 -fomit-frame-pointer -funroll-loops  execution test
FAIL: gfortran.dg/bessel_7.f90  -O3 -g  execution test
FAIL: gfortran.dg/bessel_7.f90  -Os  execution test
FAIL: gfortran.dg/float128_1.f90  -O  (test for excess errors)
FAIL: gfortran.dg/float128_1.f90  -O  scan-tree-dump original "cabsq": dump file does not exist
FAIL: gfortran.dg/float128_1.f90  -O  scan-tree-dump original "cosl": dump file does not exist
FAIL: gfortran.dg/float128_1.f90  -O  scan-tree-dump original "sqrtq": dump file does not exist