Suppose a customer is aware of the problem with integer comparisons on CLA, and does not want the compiler to use the workaround. They are willing to guarantee the values of the comparison are never in the problem range, and want to avoid the code size caused by the workaround. It seems like this would work ...

% type file.cla
int fxn(int a, int b)
{
   return a < b;
}

% cl2000 --cla_support --diag_suppress=30013 file.cla
"file.cla", line 3: warning #30013-D: Comparison operation uses integer
   comparison instruction, which does not operate properly for values that
   would overflow subtraction.  Use --cla_signed_compare_workaround=on to have
   the compiler work around this issue.

The --diag_suppress is ignored.

Please change the compiler to handle diagnostic 30013 like all the others.

For more context, please see the related forum thread.