[Bug tree-optimization/66828] New: [5/6 Regression] gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of 72057594037927936 by 8 places cannot be represented in type 'long int'

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66828

            Bug ID: 66828
           Summary: [5/6 Regression] gcc/tree-ssa-math-opts.c:2182:38:
                    runtime error: left shift of 72057594037927936 by 8
                    places cannot be represented in type 'long int'
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: trippels at gcc dot gnu.org
                CC: thomas.preudhomme at arm dot com
  Target Milestone: ---

since r219525 bootstrap-ubsan shows:

gcc/tree-ssa-math-opts.c:2182:38: runtime error: left shift of
72057594037927936 by 8 places cannot be represented in type 'long int'