Change the Nehalem PAPI_FP_OPS event from   FP_COMP_OPS_EXE:SSE_SINGLE_PRECISION+FP_COMP_OPS_EXE:DOUBLE_PRECISION to   FP_COMP_OPS_EXE:SSE+FP_COMP_OPS_EXE:X87
Change the Nehalem PAPI_FP_OPS event from
  FP_COMP_OPS_EXE:SSE_SINGLE_PRECISION+FP_COMP_OPS_EXE:DOUBLE_PRECISION
to
  FP_COMP_OPS_EXE:SSE+FP_COMP_OPS_EXE:X87

The new event gives the same results as the previous one, with the added
benefit of also counting 32-bit compiled x87 fp ops properly.

More detailed analysis can be found here:
   http://web.eecs.utk.edu/~vweaver1/projects/nehalem-fp_ops/

pyrovski/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,pyrovski/papi,arm-hpc/papi,arm-hpc/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi,arm-hpc/papi,pyrovski/papi