[LLVMdev] BitCast or GEP?

[Rick Mann]

I have a little simple inheritance thing going on:

%struct.PDFrame = type { i64, i64, i8* }
%struct.PDField = type { %struct.PDFrame, i8 }

Is there any difference between bitcasting a pointer to the struct.PDField to struct.PDFrame, or using GEP to get a pointer to the "super" struct?

I'm not even sure it's possible to bitcast in this situation, but I imagine it should be.

-- 
Rick