Program crash for array copy with ifort
- by Stefano Borini
This program crashes with Illegal instruction: 4 on MacOSX Lion and ifort (IFORT) 12.1.0 20111011
program foo
real, pointer :: a(:,:), b(:,:)
allocate(a(5400, 5400))
allocate(b(5400, 3600))
a=1.0
b(:, 1:3600) = a(:, 1:3600)
print *, a
print *, b
deallocate(a)
deallocate(b)
end program
The same program works with gfortran. I don't see any problem. Any ideas ? Unrolling the copy and performing the explicit loop over the columns works in both compilers.
Note that with allocatable instead of pointer I have no problems.
The behavior is the same if the statement is either inside a module or not.
I confirm the same behavior on Linux using ifort (IFORT) 12.1.3 20120130.
