[LLVMdev] LLVM register number for MIPS DAGToDAG

[Ambuj Agrawal]

Is it possible to get a register number to which the value is allocated to
in MIPS in DAGToDAG class?

More Specifically:
                    SDValue Reg3 = Node->getOperand(3);
                    if (RegisterSDNode *R = dyn_cast<RegisterSDNode>(Reg3))
                    {
                        op3 = cast<RegisterSDNode>(Reg3)->getReg();
                        fprintf(stderr,"Op3 is register and regnum is
%d\n",op3);
                    }
                    else if (ConstantSDNode *C =
dyn_cast<ConstantSDNode>(Reg3))
                    {
                        op3 = C->getZExtValue();
                        fprintf(stderr,"Op3 is constant and value is
%d\n",op3);
                    }

When I run this code Reg3 is found out to be a ConstantSDNode but is stored
in the register in assembly. I want to store the value in register but also
need the register number to which the value is allocated.

Thanks,
Ambuj Agrawal
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