Simple benchmark results

[Jerry DeLisle]

Here are timings for before an after the patch to PR32554: Average of five runs 
in seconds

	g77	gfc42	gfc	ifort

	1.086	2.350	2.197	2.995	
	1.202	2.367	2.199	2.936	
	1.081	2.350	2.304	2.921	
	1.097	2.372	2.205	2.956	
	1.081	2.363	2.215	3.008

Avg>>>	1.109	2.360	2.224	2.963	

Simple test:

       program main
       open(10)
       a = 0.3858204
       do i=1,500000
          a = a + 0.4761748164
          write(10, '(G12.5)') a
       end do
       end