[Bug tree-optimization/54669] [4.8 regression] verify_flow_info failure after loop unrolling with -fnon-call-exceptions

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54669



Eric Botcazou <ebotcazou at gcc dot gnu.org> changed:



           What    |Removed                     |Added

----------------------------------------------------------------------------

             Status|UNCONFIRMED                 |NEW

   Last reconfirmed|                            |2012-09-22

          Component|middle-end                  |tree-optimization

   Target Milestone|---                         |4.8.0

            Summary|[4.8 Regression] ICE:       |[4.8 regression]

                   |verify_flow_info failed: BB |verify_flow_info failure

                   |5 last statement has        |after loop unrolling with

                   |incorrectly set lp with     |-fnon-call-exceptions

                   |-fnon-call-exceptions       |

     Ever Confirmed|0                           |1



--- Comment #3 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-09-22 
19:50:11 UTC ---

I guess it's the transformation of array accesses with variable index into

array accesses with fixed index in conjunction with -fnon-call-exceptions.