#ifndef MipsISELLOWERING_H
#define MipsISELLOWERING_H
-#include "llvm/CodeGen/SelectionDAG.h"
-#include "llvm/Target/TargetLowering.h"
#include "Mips.h"
#include "MipsSubtarget.h"
+#include "llvm/CodeGen/SelectionDAG.h"
+#include "llvm/Target/TargetLowering.h"
namespace llvm {
namespace MipsISD {
enum NodeType {
// Start the numbering from where ISD NodeType finishes.
- FIRST_NUMBER = ISD::BUILTIN_OP_END+Mips::INSTRUCTION_LIST_END,
+ FIRST_NUMBER = ISD::BUILTIN_OP_END,
// Jump and link (call)
JmpLink,
// Get the Higher 16 bits from a 32-bit immediate
// No relation with Mips Hi register
- Hi,
+ Hi,
// Get the Lower 16 bits from a 32-bit immediate
// No relation with Mips Lo register
- Lo,
+ Lo,
// Handle gp_rel (small data/bss sections) relocation.
GPRel,
- // Conditional Move
- CMov,
-
- // Select CC Pseudo Instruction
- SelectCC,
-
- // Floating Point Select CC Pseudo Instruction
- FPSelectCC,
+ // Thread Pointer
+ ThreadPointer,
// Floating Point Branch Conditional
FPBrcond,
// Floating Point Compare
FPCmp,
- // Return
- Ret
+ // Floating Point Conditional Moves
+ CMovFP_T,
+ CMovFP_F,
+
+ // Floating Point Rounding
+ FPRound,
+
+ // Return
+ Ret,
+
+ // MAdd/Sub nodes
+ MAdd,
+ MAddu,
+ MSub,
+ MSubu,
+
+ // DivRem(u)
+ DivRem,
+ DivRemU,
+
+ BuildPairF64,
+ ExtractElementF64,
+
+ Wrapper,
+
+ DynAlloc,
+
+ Sync,
+
+ Ext,
+ Ins
};
}
//===--------------------------------------------------------------------===//
// TargetLowering Implementation
//===--------------------------------------------------------------------===//
- class MipsTargetLowering : public TargetLowering
- {
- // FrameIndex for return slot.
- int ReturnAddrIndex;
- public:
+ class MipsTargetLowering : public TargetLowering {
+ public:
explicit MipsTargetLowering(MipsTargetMachine &TM);
+ virtual MVT getShiftAmountTy(EVT LHSTy) const { return MVT::i32; }
+
+ virtual bool allowsUnalignedMemoryAccesses (EVT VT) const;
+
/// LowerOperation - Provide custom lowering hooks for some operations.
- virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG);
+ virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
- /// getTargetNodeName - This method returns the name of a target specific
+ /// getTargetNodeName - This method returns the name of a target specific
// DAG node.
virtual const char *getTargetNodeName(unsigned Opcode) const;
/// getSetCCResultType - get the ISD::SETCC result ValueType
- MVT getSetCCResultType(const SDValue &) const;
+ EVT getSetCCResultType(EVT VT) const;
+ virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
private:
// Subtarget Info
const MipsSubtarget *Subtarget;
+ bool HasMips64, IsN64, IsO32;
+
// Lower Operand helpers
- SDNode *LowerCallResult(SDValue Chain, SDValue InFlag, CallSDNode *TheCall,
- unsigned CallingConv, SelectionDAG &DAG);
- bool IsGlobalInSmallSection(GlobalValue *GV);
- bool IsInSmallSection(unsigned Size);
+ SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
// Lower Operand specifics
- SDValue LowerANDOR(SDValue Op, SelectionDAG &DAG);
- SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG);
- SDValue LowerCALL(SDValue Op, SelectionDAG &DAG);
- SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG);
- SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG);
- SDValue LowerFORMAL_ARGUMENTS(SDValue Op, SelectionDAG &DAG);
- SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG);
- SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG);
- SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG);
- SDValue LowerRET(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG);
- SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG);
-
- virtual MachineBasicBlock *EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *MBB);
+ SDValue LowerBRCOND(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSELECT(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFCOPYSIGN(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFABS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerMEMBARRIER(SDValue Op, SelectionDAG& DAG) const;
+ SDValue LowerATOMIC_FENCE(SDValue Op, SelectionDAG& DAG) const;
+
+ virtual SDValue
+ LowerFormalArguments(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
+
+ virtual SDValue
+ LowerCall(SDValue Chain, SDValue Callee,
+ CallingConv::ID CallConv, bool isVarArg,
+ bool doesNotRet, bool &isTailCall,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<SDValue> &OutVals,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
+
+ virtual SDValue
+ LowerReturn(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ const SmallVectorImpl<SDValue> &OutVals,
+ DebugLoc dl, SelectionDAG &DAG) const;
+
+ virtual MachineBasicBlock *
+ EmitInstrWithCustomInserter(MachineInstr *MI,
+ MachineBasicBlock *MBB) const;
// Inline asm support
ConstraintType getConstraintType(const std::string &Constraint) const;
- std::pair<unsigned, const TargetRegisterClass*>
- getRegForInlineAsmConstraint(const std::string &Constraint,
- MVT VT) const;
+ /// Examine constraint string and operand type and determine a weight value.
+ /// The operand object must already have been set up with the operand type.
+ ConstraintWeight getSingleConstraintMatchWeight(
+ AsmOperandInfo &info, const char *constraint) const;
- std::vector<unsigned>
- getRegClassForInlineAsmConstraint(const std::string &Constraint,
- MVT VT) const;
+ std::pair<unsigned, const TargetRegisterClass*>
+ getRegForInlineAsmConstraint(const std::string &Constraint,
+ EVT VT) const;
+
+ virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
+
+ /// isFPImmLegal - Returns true if the target can instruction select the
+ /// specified FP immediate natively. If false, the legalizer will
+ /// materialize the FP immediate as a load from a constant pool.
+ virtual bool isFPImmLegal(const APFloat &Imm, EVT VT) const;
+
+ virtual unsigned getJumpTableEncoding() const;
+
+ MachineBasicBlock *EmitAtomicBinary(MachineInstr *MI, MachineBasicBlock *BB,
+ unsigned Size, unsigned BinOpcode, bool Nand = false) const;
+ MachineBasicBlock *EmitAtomicBinaryPartword(MachineInstr *MI,
+ MachineBasicBlock *BB, unsigned Size, unsigned BinOpcode,
+ bool Nand = false) const;
+ MachineBasicBlock *EmitAtomicCmpSwap(MachineInstr *MI,
+ MachineBasicBlock *BB, unsigned Size) const;
+ MachineBasicBlock *EmitAtomicCmpSwapPartword(MachineInstr *MI,
+ MachineBasicBlock *BB, unsigned Size) const;
};
}
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