Lo, // Low 8-bits of GlobalAddress.
Hi, // High 8-bits of GlobalAddress.
PIC16Load,
+ PIC16LdWF,
PIC16Store,
+ PIC16StWF,
Banksel,
MTLO,
MTHI,
LRLF, // PIC16 Logical shift right
RLF, // Rotate left through carry
RRF, // Rotate right through carry
+ CALL, // PIC16 Call instruction
+ SUBCC, // Compare for equality or inequality.
+ SELECT_ICC, // Psuedo to be caught in schedular and expanded to brcond.
+ BRCOND, // Conditional branch.
Dummy
};
RAM_SPACE = 0, // RAM address space
ROM_SPACE = 1 // ROM address space number is 1
};
+ enum PIC16Libcall {
+ MUL_I8,
+ SRA_I8,
+ SLL_I8,
+ SRL_I8,
+ PIC16UnknownCall
+ };
}
+
//===--------------------------------------------------------------------===//
// TargetLowering Implementation
//===--------------------------------------------------------------------===//
/// getTargetNodeName - This method returns the name of a target specific
/// DAG node.
virtual const char *getTargetNodeName(unsigned Opcode) const;
- SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
+ /// getSetCCResultType - Return the ISD::SETCC ValueType
+ virtual MVT getSetCCResultType(MVT ValType) const;
SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
- SDValue LowerADDE(SDValue Op, SelectionDAG &DAG);
- SDValue LowerADDC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSUBE(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSUBC(SDValue Op, SelectionDAG &DAG);
-
- SDNode *ReplaceNodeResults(SDNode *N, SelectionDAG &DAG);
- SDNode *ExpandStore(SDNode *N, SelectionDAG &DAG);
- SDNode *ExpandLoad(SDNode *N, SelectionDAG &DAG);
- SDNode *ExpandAdd(SDNode *N, SelectionDAG &DAG);
- SDNode *ExpandGlobalAddress(SDNode *N, SelectionDAG &DAG);
- SDNode *ExpandShift(SDNode *N, SelectionDAG &DAG);
+ SDValue LowerShift(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerADD(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerSUB(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerBinOp(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerCALL(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerCallReturn(SDValue Op, SDValue Chain, SDValue FrameAddress,
+ SDValue InFlag, SelectionDAG &DAG);
+ SDValue LowerCallArguments(SDValue Op, SDValue Chain, SDValue FrameAddress,
+ SDValue InFlag, SelectionDAG &DAG);
+ SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
+ SDValue getPIC16Cmp(SDValue LHS, SDValue RHS, unsigned OrigCC, SDValue &CC,
+ SelectionDAG &DAG, DebugLoc dl);
+ virtual MachineBasicBlock *EmitInstrWithCustomInserter(MachineInstr *MI,
+ MachineBasicBlock *MBB);
+
+
+ virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
+ virtual void ReplaceNodeResults(SDNode *N,
+ SmallVectorImpl<SDValue> &Results,
+ SelectionDAG &DAG);
+ virtual void LowerOperationWrapper(SDNode *N,
+ SmallVectorImpl<SDValue> &Results,
+ SelectionDAG &DAG);
+
+ SDValue ExpandStore(SDNode *N, SelectionDAG &DAG);
+ SDValue ExpandLoad(SDNode *N, SelectionDAG &DAG);
+ //SDValue ExpandAdd(SDNode *N, SelectionDAG &DAG);
+ SDValue ExpandGlobalAddress(SDNode *N, SelectionDAG &DAG);
+ SDValue ExpandExternalSymbol(SDNode *N, SelectionDAG &DAG);
+ SDValue ExpandFrameIndex(SDNode *N, SelectionDAG &DAG);
SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
SDValue PerformPIC16LoadCombine(SDNode *N, DAGCombinerInfo &DCI) const;
// code at one place. In case of any change in future it will
// help maintain the code
SDValue getChain(SDValue &Op);
+
+ SDValue getOutFlag(SDValue &Op);
// Extract the Lo and Hi component of Op.
void LegalizeAddress(SDValue Ptr, SelectionDAG &DAG, SDValue &Chain,
SDValue &NewPtr, unsigned &Offset);
+ // FrameIndex should be broken down into ExternalSymbol and FrameOffset.
+ void LegalizeFrameIndex(SDValue Op, SelectionDAG &DAG, SDValue &ES,
+ int &Offset);
+
// We can not have both operands of a binary operation in W.
// This function is used to put one operand on stack and generate a load.
- SDValue ConvertToMemOperand(SDValue Op, SelectionDAG &DAG);
+ SDValue ConvertToMemOperand(SDValue Op, SelectionDAG &DAG, DebugLoc dl);
+
+ // This function checks if we need to put an operand of an operation on
+ // stack and generate a load or not.
+ bool NeedToConvertToMemOp(SDValue Op, unsigned &MemOp);
/// Subtarget - Keep a pointer to the PIC16Subtarget around so that we can
/// make the right decision when generating code for different targets.
const PIC16Subtarget *Subtarget;
+
+
+ // Extending the LIB Call framework of LLVM
+ // To hold the names of PIC16Libcalls
+ const char *PIC16LibcallNames[PIC16ISD::PIC16UnknownCall];
+
+ // To set and retrieve the lib call names
+ void setPIC16LibcallName(PIC16ISD::PIC16Libcall Call, const char *Name);
+ const char *getPIC16LibcallName(PIC16ISD::PIC16Libcall Call);
+
+ // Make PIC16 Libcall
+ SDValue MakePIC16Libcall(PIC16ISD::PIC16Libcall Call, MVT RetVT,
+ const SDValue *Ops, unsigned NumOps, bool isSigned,
+ SelectionDAG &DAG, DebugLoc dl);
+
+ // Check if operation has a direct load operand.
+ inline bool isDirectLoad(const SDValue Op);
+
+ // Create the symbol and index for function frame
+ void getCurrentFrameIndex(SelectionDAG &DAG, SDValue &ES,
+ unsigned SlotSize, int &FI);
+
+ SDValue getCurrentFrame(SelectionDAG &DAG);
};
} // namespace llvm