gfortran misses uninit vars in contained subroutines

[Bill Paxton <paxton at kitp dot ucsb dot edu>]

Just in case this one isn't already on the TO-DO list.

I'm running this version:
GNU Fortran (GCC) 4.5.1 20100506 (prerelease)

this illustrates the problem -- there is no report of the use of uninitialized variable x in subroutine t inside of subroutine test.



gfortran test_uninit.f -O2 -Wall -o test; ./test


      module test_mod
      implicit none
      
      contains
      
      subroutine test
         integer :: x, y
         call t
         write(*,*) 'y', y
         
         contains
         
         subroutine t
         y = x * 5  
         end subroutine t
            
      end subroutine test
      
      end module test_mod


      program test_uninit
      use test_mod
      implicit none
      call test
      end program test_uninit