Re: [Iverilog-devel] Regression suite coverage statistics

[Cary R. <cy...@ya...>]

--- On Thu, 7/31/08, Nick Gasson <ni...@ni...> wrote:

> Yes, I'd built it with the default -O2. I think
> you're right about this 
> confusing gcov, and the manual suggests the same. I've
> re-built it with 
> -O0 and the results are here:
> http://www.nickg.me.uk/~nick/vvp_cov_O0/
> Interestingly, the total coverage decreased slightly by
> 0.5%, but 
> LineInfo.cc is now 100% covered.

I think this is to be expected. We now have a true count
of the lines being checked. Because of optimizations you
can get lines that are not really checked being marked as
checked since they become intertwined with other lines.
 
> Also, I encountered the "missing vvp_net_t delete
> operator" problem when 
> I tried this with GCC 4.1. However, there were no problems
> with -O0 on 
> either GCC 3.3 or 4.3.

I sent Steve the delete stub I wrote, so he can decide what
he thinks is best. I don't see how the stub would cause any
problems and if it helps under 4.1 we should probably include
something like it.

Cary