I found that the output depends on optimization options if I compile the following code by ifort.
implicit none
integer i,j,k
do j=1,2
do i=1,2
write (*,*) j
do k=1,2
enddo
enddo
enddo
end
Obviously the correct output is "1 1 2 2". With the default option (-O2), however, the output "2 2 2 2" is obtained. Other options (-O1 or -O0) give the correct result.
The code was run on Itanium 2. The above-mentioned error occurs with ifort 9.1 or higher, though the code runs correctly with ifort 8.1.
