RE: [GD-General] Overhead of RTTI

[<phi...@pl...>]

"Grills, Jeff" <jg...@so...>:
> GCC's code gen for this stuff is apparently a fair bit better.

I had a brief look at this, with the view to potentially replacing some
hand-rolled RTTI that had caused some minor bugs (the problem with
hand-rolled RTTI is entirely one of maintenance). IIRC, my only gripe with
GCC was that it kept the RTTI tables seperate from the vtables. Although
I'm sure there's a good reason for this, it was going to add yet another
potential cache miss, and so out it went. I don't think I even looked at
the dynamic_cast code, as I was just going to be comparing types.

Although I'm now tempted to turn it on in debug builds, to assert the
hand-rolled RTTI is working.

Cheers,
Phil