search for: storetostackslot

I'm having trouble with virtual registers/register allocation in my back-end. Basically the FastRegAlloc pass is generating calls to storeToStackSlot and loadFromStackSlot, in which we build new machine instructions, which are then _not_ processed by the reg allocator. I understand that BuildMI is changing the list of MachInst. that the allocator is iterating over, but we need to have a new virtual register as part of the stack store process sin...