https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70127

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |jakub at gcc dot gnu.org

--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 37895
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37895&action=edit
gcc6-pr70127.patch

Given this I think it is safest to restore the types_compatible_p check for
initialize_data_dependence_relation (which has been done before inside of
operand_equal_p).  Perhaps for GCC 7 we might slightly change that, e.g. to do
a less strict type compatibility comparison, but unless we stop adding access
fn elements for ARRAY_REFs for single element arrays (but, what to do about
trailing arrays that could be flexible-like) and for fields that cover the
whole struct, we need to at least verify the same levels of ARRAY_TYPEs and
same levels of RECORD_TYPEs with field decl covering the whole struct.

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