[Bug c/67819] New: -Wduplicated-cond should take macros into account

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67819

            Bug ID: 67819
           Summary: -Wduplicated-cond should take macros into account
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
          Assignee: unassigned at gcc dot gnu.org
          Reporter: mpolacek at gcc dot gnu.org
  Target Milestone: ---

I.e. don't warn for:

#define FOO 4
#define BAR 4

int
fn (int n)
{
  if (n <= FOO)
    return 1;
  else if (n <= BAR)
    return 2;
  return 0;
}