[Bug tree-optimization/70116] New: tail-merge merges ubsan internal fns with different location information

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70116

            Bug ID: 70116
           Summary: tail-merge merges ubsan internal fns with different
                    location information
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

https://gcc.gnu.org/ml/gcc-patches/2015-07/msg00758.html :
...
I'd actually think it would be better to give up on the
UBSAN_* internal calls in tail merging.  Those internal pass
arguments based on their gimple_location, so tail merging breaks
them.
...