[Bug fortran/35759] WHERE with overlap with ELSEWHERE error

[pault at gcc dot gnu dot org]

------- Comment #2 from pault at gcc dot gnu dot org  2008-03-30 12:40 -------
This one should be straightforward, if lengthy to correct:

gfc_trans_where_2 is completely correct, as can be verified by doubling up the
line making the assignment in the WHERE block. ie:

      WHERE (LDA)                !          expected
        UDA1L(1:5) = UDA1R(2:6)  !  uda1l = 2,0,4,0,6,0
        UDA1L(1:5) = UDA1R(2:6)  !  uda1l = 2,0,4,0,6,0
      ELSEWHERE
        UDA1L(2:6) = UDA1R(6:2:-1) !uda1l = 2,0,5,0,3,0
      ENDWHERE

gfc_trans_where_3 is selected for a simple WHERE/ELSEWHERE, with no
dependencies and a single assignment expression in each block.  This is
selected by Dick's testscase.  It is also wrong, as indicated by Tobias in #1!

gfc_trans_where_3 will have to be split into two loops, instead of a single
loop with an expression.

Cheers

Paul


-- 

pault at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at gcc dot gnu   |pault at gcc dot gnu dot org
                   |dot org                     |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|2008-03-29 23:23:44         |2008-03-30 12:40:39
               date|                            |


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35759