[Bug c++/77431] New: warn for having the same code in if-else branches

[manu at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77431

            Bug ID: 77431
           Summary: warn for having the same code in if-else branches
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: manu at gcc dot gnu.org
  Target Milestone: ---

Simple testcase:

int foo(int *a)
{
    if (a)
        return 0;
    else
        return 0;
}

Complex testcase in GCC sources: PR77424