[Bug tree-optimization/71575] [6/7 Regression] [graphite] internal compiler error: in copy_cond_phi_nodes, at graphite-isl-ast-to-gimple.c:2500

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71575

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|4.9.4                       |6.2
            Summary|[4.9/6/7 Regression]        |[6/7 Regression] [graphite]
                   |[graphite] internal         |internal compiler error: in
                   |compiler error: in          |copy_cond_phi_nodes, at
                   |copy_cond_phi_nodes, at     |graphite-isl-ast-to-gimple.
                   |graphite-isl-ast-to-gimple. |c:2500
                   |c:2500                      |

--- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> ---
(In reply to Martin Liška from comment #2)
> Confirmed, I'm adding also GCC 4.9 branches where it:
> sorry, unimplemented: Graphite loop optimizations cannot be used

this just means you didn't have the graphite prerequesites and it was disabled
at compile-time.