#include "llvm/Target/TargetLowering.h"
namespace llvm {
+ namespace MSP430ISD {
+ enum {
+ FIRST_NUMBER = ISD::BUILTIN_OP_END,
+
+ /// Return with a flag operand. Operand 0 is the chain operand.
+ RET_FLAG,
+
+ /// Y = R{R,L}A X, rotate right (left) arithmetically
+ RRA, RLA,
+
+ /// Y = RRC X, rotate right via carry
+ RRC,
+
+ /// CALL/TAILCALL - These operations represent an abstract call
+ /// instruction, which includes a bunch of information.
+ CALL,
+
+ /// Wrapper - A wrapper node for TargetConstantPool, TargetExternalSymbol,
+ /// and TargetGlobalAddress.
+ Wrapper,
+
+ /// CMP - Compare instruction.
+ CMP,
+
+ /// SetCC. Operand 0 is condition code, and operand 1 is the flag
+ /// operand produced by a CMP instruction.
+ SETCC,
+
+ /// MSP430 conditional branches. Operand 0 is the chain operand, operand 1
+ /// is the block to branch if condition is true, operand 2 is the
+ /// condition code, and operand 3 is the flag operand produced by a CMP
+ /// instruction.
+ BR_CC,
+
+ /// SELECT_CC. Operand 0 and operand 1 are selection variable, operand 3
+ /// is condition code and operand 4 is flag operand.
+ SELECT_CC
+ };
+ }
class MSP430Subtarget;
class MSP430TargetMachine;
/// LowerOperation - Provide custom lowering hooks for some operations.
virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
+
+ /// getTargetNodeName - This method returns the name of a target specific
+ /// DAG node.
+ virtual const char *getTargetNodeName(unsigned Opcode) const;
+
SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerCALL(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
SDValue LowerCCCArguments(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerShifts(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerExternalSymbol(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerBR_CC(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG);
+ SDValue LowerSIGN_EXTEND(SDValue Op, SelectionDAG &DAG);
+
+ SDValue LowerCCCCallTo(SDValue Op, SelectionDAG &DAG,
+ unsigned CC);
+ SDNode* LowerCallResult(SDValue Chain, SDValue InFlag,
+ CallSDNode *TheCall,
+ unsigned CallingConv, SelectionDAG &DAG);
+
+ MachineBasicBlock* EmitInstrWithCustomInserter(MachineInstr *MI,
+ MachineBasicBlock *BB) const;
private:
const MSP430Subtarget &Subtarget;