//
//===----------------------------------------------------------------------===//
-#ifndef XCOREISELLOWERING_H
-#define XCOREISELLOWERING_H
+#ifndef LLVM_LIB_TARGET_XCORE_XCOREISELLOWERING_H
+#define LLVM_LIB_TARGET_XCORE_XCOREISELLOWERING_H
+#include "XCore.h"
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Target/TargetLowering.h"
-#include "XCore.h"
namespace llvm {
-
+
// Forward delcarations
class XCoreSubtarget;
class XCoreTargetMachine;
-
+
namespace XCoreISD {
- enum NodeType {
+ enum NodeType : unsigned {
// Start the numbering where the builtin ops and target ops leave off.
FIRST_NUMBER = ISD::BUILTIN_OP_END,
// dp relative address
DPRelativeWrapper,
-
+
// cp relative address
CPRelativeWrapper,
-
+
+ // Load word from stack
+ LDWSP,
+
// Store word to stack
STWSP,
// Corresponds to retsp instruction
RETSP,
-
+
// Corresponds to LADD instruction
LADD,
// Corresponds to MACCS instruction
MACCS,
+ // Corresponds to CRC8 instruction
+ CRC8,
+
// Jumptable branch.
BR_JT,
// Jumptable branch using long branches for each entry.
- BR_JT32
+ BR_JT32,
+
+ // Offset from frame pointer to the first (possible) on-stack argument
+ FRAME_TO_ARGS_OFFSET,
+
+ // Exception handler return. The stack is restored to the first
+ // followed by a jump to the second argument.
+ EH_RETURN,
+
+ // Memory barrier.
+ MEMBARRIER
};
}
//===--------------------------------------------------------------------===//
// TargetLowering Implementation
//===--------------------------------------------------------------------===//
- class XCoreTargetLowering : public TargetLowering
+ class XCoreTargetLowering : public TargetLowering
{
public:
+ explicit XCoreTargetLowering(const TargetMachine &TM,
+ const XCoreSubtarget &Subtarget);
+
+ using TargetLowering::isZExtFree;
+ bool isZExtFree(SDValue Val, EVT VT2) const override;
- explicit XCoreTargetLowering(XCoreTargetMachine &TM);
- virtual unsigned getJumpTableEncoding() const;
+ unsigned getJumpTableEncoding() const override;
+ MVT getScalarShiftAmountTy(EVT LHSTy) const override { return MVT::i32; }
/// LowerOperation - Provide custom lowering hooks for some operations.
- virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override;
/// ReplaceNodeResults - Replace the results of node with an illegal result
/// type with new values built out of custom code.
///
- virtual void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
- SelectionDAG &DAG) const;
+ void ReplaceNodeResults(SDNode *N, SmallVectorImpl<SDValue>&Results,
+ SelectionDAG &DAG) const override;
- /// 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;
-
- virtual MachineBasicBlock *
- EmitInstrWithCustomInserter(MachineInstr *MI,
- MachineBasicBlock *MBB) const;
+ const char *getTargetNodeName(unsigned Opcode) const override;
- virtual bool isLegalAddressingMode(const AddrMode &AM,
- const Type *Ty) const;
+ MachineBasicBlock *
+ EmitInstrWithCustomInserter(MachineInstr *MI,
+ MachineBasicBlock *MBB) const override;
- /// getFunctionAlignment - Return the Log2 alignment of this function.
- virtual unsigned getFunctionAlignment(const Function *F) const;
+ bool isLegalAddressingMode(const AddrMode &AM, Type *Ty,
+ unsigned AS) const override;
private:
- const XCoreTargetMachine &TM;
+ const TargetMachine &TM;
const XCoreSubtarget &Subtarget;
-
+
// Lower Operand helpers
SDValue LowerCCCArguments(SDValue Chain,
CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
- DebugLoc dl, SelectionDAG &DAG,
+ SDLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const;
SDValue LowerCCCCallTo(SDValue Chain, SDValue Callee,
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
const SmallVectorImpl<ISD::InputArg> &Ins,
- DebugLoc dl, SelectionDAG &DAG,
+ SDLoc dl, SelectionDAG &DAG,
SmallVectorImpl<SDValue> &InVals) const;
- SDValue LowerCallResult(SDValue Chain, SDValue InFlag,
- CallingConv::ID CallConv, bool isVarArg,
- const SmallVectorImpl<ISD::InputArg> &Ins,
- DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals) const;
SDValue getReturnAddressFrameIndex(SelectionDAG &DAG) const;
SDValue getGlobalAddressWrapper(SDValue GA, const GlobalValue *GV,
SelectionDAG &DAG) const;
+ SDValue lowerLoadWordFromAlignedBasePlusOffset(SDLoc DL, SDValue Chain,
+ SDValue Base, int64_t Offset,
+ SelectionDAG &DAG) const;
// Lower Operand specifics
SDValue LowerLOAD(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSTORE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerEH_RETURN(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerBR_JT(SDValue Op, SelectionDAG &DAG) const;
- SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerUMUL_LOHI(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerSMUL_LOHI(SDValue Op, SelectionDAG &DAG) const;
SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
-
+ SDValue LowerFRAME_TO_ARGS_OFFSET(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINIT_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerADJUST_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerATOMIC_FENCE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerATOMIC_LOAD(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerATOMIC_STORE(SDValue Op, SelectionDAG &DAG) const;
+
// Inline asm support
- std::vector<unsigned>
- getRegClassForInlineAsmConstraint(const std::string &Constraint,
- EVT VT) const;
-
+ std::pair<unsigned, const TargetRegisterClass *>
+ getRegForInlineAsmConstraint(const TargetRegisterInfo *TRI,
+ StringRef Constraint, MVT VT) const override;
+
// Expand specifics
SDValue TryExpandADDWithMul(SDNode *Op, SelectionDAG &DAG) const;
SDValue ExpandADDSUB(SDNode *Op, SelectionDAG &DAG) const;
- virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
+ SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const override;
- virtual void computeMaskedBitsForTargetNode(const SDValue Op,
- const APInt &Mask,
- APInt &KnownZero,
- APInt &KnownOne,
- const SelectionDAG &DAG,
- unsigned Depth = 0) const;
+ void computeKnownBitsForTargetNode(const SDValue Op,
+ APInt &KnownZero,
+ APInt &KnownOne,
+ const SelectionDAG &DAG,
+ unsigned Depth = 0) const override;
- virtual SDValue
+ SDValue
LowerFormalArguments(SDValue Chain,
CallingConv::ID CallConv,
bool isVarArg,
const SmallVectorImpl<ISD::InputArg> &Ins,
- DebugLoc dl, SelectionDAG &DAG,
- SmallVectorImpl<SDValue> &InVals) const;
+ SDLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const override;
+
+ SDValue
+ LowerCall(TargetLowering::CallLoweringInfo &CLI,
+ SmallVectorImpl<SDValue> &InVals) const override;
- virtual SDValue
- LowerCall(SDValue Chain, SDValue Callee,
- CallingConv::ID CallConv, bool isVarArg,
- 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
+ SDValue
LowerReturn(SDValue Chain,
CallingConv::ID CallConv, bool isVarArg,
const SmallVectorImpl<ISD::OutputArg> &Outs,
const SmallVectorImpl<SDValue> &OutVals,
- DebugLoc dl, SelectionDAG &DAG) const;
+ SDLoc dl, SelectionDAG &DAG) const override;
- virtual bool
- CanLowerReturn(CallingConv::ID CallConv, bool isVarArg,
- const SmallVectorImpl<EVT> &OutTys,
- const SmallVectorImpl<ISD::ArgFlagsTy> &ArgsFlags,
- LLVMContext &Context) const;
+ bool
+ CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF,
+ bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &ArgsFlags,
+ LLVMContext &Context) const override;
};
}
-#endif // XCOREISELLOWERING_H
+#endif
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