I just finished stepping through some code having to do with PCs in
simple CPU, and I noticed that not printing DPRINTFs is actually a
fairly involved process, considering that you're not actually doing
anything. Part of the issue, I think, is that whether or not a traceflag
is on is
You're talking about replacing return flags[t]; with a space optimized
bit vector? I imagine it would help performance some if for no other
reason that the trace flags would fit is a single cache block rather
than spanning multiple as they do now.
Ali
On Sep 23, 2008, at 2:42 AM, Gabe
I think I probably started using vectorbool but wound up using bitset
eventually. Likely anything I used vectorbool for could be easily
cleaned up to use bitset instead. It's probably not going to make a
difference performance wise where I used it, but at least it would be
more consistent.
I think vectorbool is indeed a vector of bools because x[0] is
supposed to return a bool * that you can mess with. I think that's
why bitset exists. I'd be happy to see us move to bitset. The size
of the bitset is easy to get since the code is autogenerated anyway.
Nate
On Tue, Sep 23, 2008
