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1 //===-- AVRISelDAGToDAG.cpp - A dag to dag inst selector for AVR ----------===//
9 // This file defines an instruction selector for the AVR target.
13 #include "AVR.h"
22 #define DEBUG_TYPE "avr-isel"
26 /// Lowers LLVM IR (in DAG form) to AVR MC instructions (in DAG form).
33     return "AVR DAG->DAG Instruction Selection";
144     Opcode = (isPre) ? AVR::LDRdPtrPd : AVR::LDRdPtrPi;
152     Opcode = (isPre) ? AVR::LDWRdPtrPd : AVR::LDWRdPtrPi;
185     Opcode = AVR::LPMRdZPi;
192     Opcode = AVR::LPMWRdZPi;
219       RI.getRegClass(RegNode->getReg()) == &AVR::PTRDISPREGSRegClass) {
252                              AVR::PTRDISPREGSRegClass.contains(Reg));
262       if (RI.getRegClass(Reg) != &AVR::PTRDISPREGSRegClass) {
265         Register VReg = RI.createVirtualRegister(&AVR::PTRDISPREGSRegClass);
294   Register VReg = RI.createVirtualRegister(&AVR::PTRDISPREGSRegClass);
314   CurDAG->SelectNodeTo(N, AVR::FRMIDX,
334   if (!RN || (RN->getReg() != AVR::SP)) {
344   unsigned Opc = (VT == MVT::i16) ? AVR::STDWSPQRr : AVR::STDSPQRr;
359   if (!AVR::isProgramMemoryAccess(LD)) {
374   Chain = CurDAG->getCopyToReg(Chain, DL, AVR::R31R30, Ptr, SDValue());
375   Ptr = CurDAG->getCopyFromReg(Chain, DL, AVR::R31R30, MVT::i16,
378   SDValue RegZ = CurDAG->getRegister(AVR::R31R30, MVT::i16);
390       ResNode = CurDAG->getMachineNode(AVR::LPMRdZ, DL, MVT::i8, MVT::Other,
394       ResNode = CurDAG->getMachineNode(AVR::LPMWRdZ, DL, MVT::i16,
431   Chain = CurDAG->getCopyToReg(Chain, DL, AVR::R31R30, Callee, InFlag);
433   Ops.push_back(CurDAG->getRegister(AVR::R31R30, MVT::i16));
444     CurDAG->getMachineNode(AVR::ICALL, DL, MVT::Other, MVT::Glue, Ops);
459   Chain = CurDAG->getCopyToReg(Chain, DL, AVR::R31R30, JmpAddr);
460   SDNode *ResNode = CurDAG->getMachineNode(AVR::IJMP, DL, MVT::Other, Chain);
475   unsigned MachineOp = isSigned ? AVR::MULSRdRr : AVR::MULRdRr;
486         CurDAG->getCopyFromReg(InChain, DL, AVR::R0, Type, InGlue);
497         CurDAG->getCopyFromReg(InChain, DL, AVR::R1, Type, InGlue);