15 #ifndef LLVM_LIB_TARGET_XCORE_XCOREISELLOWERING_H
16 #define LLVM_LIB_TARGET_XCORE_XCOREISELLOWERING_H
26 class XCoreTargetMachine;
126 Type *Ty,
unsigned AS)
const override;
163 SDValue lowerLoadWordFromAlignedBasePlusOffset(
const SDLoc &DL,
192 std::pair<unsigned, const TargetRegisterClass *>
200 SDValue PerformDAGCombine(
SDNode *
N, DAGCombinerInfo &DCI)
const override;
202 void computeKnownBitsForTargetNode(
const SDValue Op,
206 unsigned Depth = 0)
const override;
228 bool shouldInsertFencesForAtomic(
const Instruction *
I)
const override {
BUILTIN_OP_END - This must be the last enum value in this list.
A parsed version of the target data layout string in and methods for querying it. ...
virtual bool isZExtFree(Type *FromTy, Type *ToTy) const
Return true if any actual instruction that defines a value of type FromTy implicitly zero-extends the...
XCoreTargetLowering(const TargetMachine &TM, const XCoreSubtarget &Subtarget)
SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const override
LowerOperation - Provide custom lowering hooks for some operations.
Function Alias Analysis Results
bool isZExtFree(SDValue Val, EVT VT2) const override
Return true if zero-extending the specific node Val to type VT2 is free (either because it's implicit...
unsigned getExceptionPointerRegister(const Constant *PersonalityFn) const override
If a physical register, this returns the register that receives the exception address on entry to an ...
This class consists of common code factored out of the SmallVector class to reduce code duplication b...
This class defines information used to lower LLVM code to legal SelectionDAG operators that the targe...
void ReplaceNodeResults(SDNode *N, SmallVectorImpl< SDValue > &Results, SelectionDAG &DAG) const override
ReplaceNodeResults - Replace the results of node with an illegal result type with new values built ou...
MachineBasicBlock * EmitInstrWithCustomInserter(MachineInstr &MI, MachineBasicBlock *MBB) const override
This method should be implemented by targets that mark instructions with the 'usesCustomInserter' fla...
MVT - Machine Value Type.
The instances of the Type class are immutable: once they are created, they are never changed...
This is an important class for using LLVM in a threaded context.
This is an important base class in LLVM.
unsigned getExceptionSelectorRegister(const Constant *PersonalityFn) const override
If a physical register, this returns the register that receives the exception typeid on entry to a la...
EVT - Extended Value Type.
TargetRegisterInfo base class - We assume that the target defines a static array of TargetRegisterDes...
This structure contains all information that is necessary for lowering calls.
bool isLegalAddressingMode(const DataLayout &DL, const AddrMode &AM, Type *Ty, unsigned AS) const override
isLegalAddressingMode - Return true if the addressing mode represented by AM is legal for this target...
This is used to represent a portion of an LLVM function in a low-level Data Dependence DAG representa...
Wrapper class for IR location info (IR ordering and DebugLoc) to be passed into SDNode creation funct...
Represents one node in the SelectionDAG.
Class for arbitrary precision integers.
AddrMode
ARM Addressing Modes.
Representation of each machine instruction.
unsigned getJumpTableEncoding() const override
Return the entry encoding for a jump table in the current function.
const char * getTargetNodeName(unsigned Opcode) const override
getTargetNodeName - This method returns the name of a target specific
Primary interface to the complete machine description for the target machine.
StringRef - Represent a constant reference to a string, i.e.
Unlike LLVM values, Selection DAG nodes may return multiple values as the result of a computation...
MVT getScalarShiftAmountTy(const DataLayout &DL, EVT) const override
EVT is not used in-tree, but is used by out-of-tree target.
This file describes how to lower LLVM code to machine code.