[PATCH] gcov: fix file and function summary information

[Jørgen Kvalsvik]

On 22/08/2022 21:25, Martin Liška wrote:
> Patch can bootstrap on x86_64-linux-gnu and survives regression tests.
> 
> Jorgen: Can you please test it before I'll install it?
> 
> Thanks,
> Martin
> 
> gcc/ChangeLog:
> 
> 	* gcov.cc (add_line_counts): Add group functions to coverage
> 	summary.
> 	(accumulate_line_counts): Similarly for files.
> 
> Co-Authored-By: Jørgen Kvalsvik <j@lambda.is>
> ---
>   gcc/gcov.cc | 9 ++++++++-
>   1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/gcc/gcov.cc b/gcc/gcov.cc
> index 27be5ff0911..9cf1071166f 100644
> --- a/gcc/gcov.cc
> +++ b/gcc/gcov.cc
> @@ -2694,6 +2694,13 @@ add_line_counts (coverage_info *coverage, function_info *fn)
>   		{
>   		  gcc_assert (lines[j] - fn->start_line < fn->lines.size ());
>   		  line = &(fn->lines[lines[j] - fn->start_line]);
> +		  if (coverage)
> +		    {
> +		      if (!line->exists)
> +			coverage->lines++;
> +		      if (!line->count && block->count)
> +			coverage->lines_executed++;
> +		    }
>   		  line->exists = 1;
>   		  if (!block->exceptional)
>   		    {
> @@ -2815,7 +2822,7 @@ accumulate_line_counts (source_info *src)
>   	   it2 != fn->lines.end (); it2++)
>   	  {
>   	    line_info *line = &(*it2);
> -	    accumulate_line_info (line, src, false);
> +	    accumulate_line_info (line, src, true);
>   	  }
>       }
>   

I tested it and get the file summary as expected:

File 'demo.cc'
Lines executed:84.62% of 26
Branches executed:100.00% of 6
Taken at least once:50.00% of 6
Calls executed:100.00% of 4
Creating 'demo.cc.gcov'

Thanks,
Jørgen