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 Dave
