http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55051
--- Comment #27 from Jan Hubicka <hubicka at gcc dot gnu.org> 2012-11-16
17:42:26 UTC ---
/* Now merge each file. */
for (gi_ptr = gcov_list; gi_ptr; gi_ptr = gi_ptr->next)
{
// Open existing gcda file for gi_ptr
// Find program summary corresponding to this executable -> save in prg
// Merge execution counts for each function
// Merge program summary
// - If this is the first merged file for this execution,
save merged summary in all_prg
// - Otherwise if #runs the same in prg and all_prg,
print error message if prg != all_prg.
// Write merged gcda
}
Hmm, yes, it seems wrong. We can not expect all gcda files to have same number
of runs. We really need to process sum_all & friends locally for each file.
Only I suppose we can check if number of runs of the prg happens to match the
last merged file then sum_all should match. That would be nice consistency
check. If the bootstrap works with this change, consider the patch preapproved.
