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...want to check the pointer alias behavior. I am getting this by considering the memoperands for the load instruction.   For "load instruction", Machine Instruction dumps as below:   vr12<def> = LD_Iri %vr2<kill>, 0; mem:LD4[<unknown>]   I checked for memoperands for this MachInst, which are not empty, as "has_empty()" returns false. When I check "Value *", pointed by memoperands_begin() and memoperands_end(), i get NULL value. Thus, I don't the the memory pointer.   What can be probable reasons for this behavior? or is this behavior expected?   I ha...

...ith 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 since we don't have indirect adressing. Should we be creating a physical register directly somehow, or can we perhaps signal to the allocator that the basic block's contents...