On Tue, May 16, 2017 at 2:45 PM, David Malcolm <dmalc...@redhat.com> wrote: > On Tue, 2017-05-16 at 14:24 -0400, Will Hawkins wrote: >> Hello everyone! >> >> I apologize if this is not the right venue to ask this question >> and/or >> this is a waste of your time. >> >> I was just wondering if there are statistics that gcc can emit that >> includes either a) the average number of instructions per basic block >> and/or b) the average size (in bytes) per basic block in a >> compilation >> unit. >> >> If nothing like this exists, I am more than happy to code something >> up >> if people besides me think that it might be interesting. >> >> I promise that I googled for information before asking, but I can't >> guarantee that I didn't miss anything. Again, I apologize if I just >> needed to RTFM better. >> >> Thanks in advance for any responses! >> Will > > I don't think anything like this currently exists, but it's probably > doable via a plugin, e.g. by hooking up a new RTL pass somewhere > towards the end of the pass pipeline. > > That said, IIRC basic blocks aren't used in the final passes; > presumably they're not meaningful after the "free_cfg" pass. > > Hope this is helpful
Very helpful, thank you Mr. Malcolm! Will > Dave
