On Mon, Aug 20, 2012 at 11:48 AM, Jan Hubicka <hubi...@ucw.cz> wrote: >> The summary merging in coverage.c confuses me a bit as it seems to be >> handling the case when there are multiple program summaries in a >> single gcda file. When would this happen? It looks like the merge >> handling in libgcov should always produce a single program summary per >> gcda file.
AFAIU it merges existing profile data with new profile data from a second (or third, or ...) trial run. Ciao! Steven