//
// The LLVM Compiler Infrastructure
//
-// This file was developed by Chris Lattner and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
#ifndef LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H
#define LLVM_TARGET_POWERPC_PPC32ISELLOWERING_H
-#include "llvm/Target/TargetLowering.h"
-#include "llvm/CodeGen/SelectionDAG.h"
#include "PPC.h"
#include "PPCSubtarget.h"
+#include "llvm/Target/TargetLowering.h"
+#include "llvm/CodeGen/SelectionDAG.h"
namespace llvm {
namespace PPCISD {
enum NodeType {
// Start the numbering where the builtin ops and target ops leave off.
- FIRST_NUMBER = ISD::BUILTIN_OP_END+PPC::INSTRUCTION_LIST_END,
+ FIRST_NUMBER = ISD::BUILTIN_OP_END,
/// FSEL - Traditional three-operand fsel node.
///
FSEL,
-
+
/// FCFID - The FCFID instruction, taking an f64 operand and producing
/// and f64 value containing the FP representation of the integer that
/// was temporarily in the f64 operand.
FCFID,
-
- /// FCTI[D,W]Z - The FCTIDZ and FCTIWZ instructions, taking an f32 or f64
+
+ /// FCTI[D,W]Z - The FCTIDZ and FCTIWZ instructions, taking an f32 or f64
/// operand, producing an f64 value containing the integer representation
/// of that FP value.
FCTIDZ, FCTIWZ,
-
+
/// STFIWX - The STFIWX instruction. The first operand is an input token
- /// chain, then an f64 value to store, then an address to store it to,
- /// then a SRCVALUE for the address.
+ /// chain, then an f64 value to store, then an address to store it to.
STFIWX,
-
+
// VMADDFP, VNMSUBFP - The VMADDFP and VNMSUBFP instructions, taking
// three v4f32 operands and producing a v4f32 result.
VMADDFP, VNMSUBFP,
-
+
/// VPERM - The PPC VPERM Instruction.
///
VPERM,
-
+
/// Hi/Lo - These represent the high and low 16-bit parts of a global
/// address respectively. These nodes have two operands, the first of
/// which must be a TargetGlobalAddress, and the second of which must be a
/// Constant. Selected naively, these turn into 'lis G+C' and 'li G+C',
/// though these are usually folded into other nodes.
Hi, Lo,
-
+
+ TOC_ENTRY,
+
+ /// The following three target-specific nodes are used for calls through
+ /// function pointers in the 64-bit SVR4 ABI.
+
+ /// Restore the TOC from the TOC save area of the current stack frame.
+ /// This is basically a hard coded load instruction which additionally
+ /// takes/produces a flag.
+ TOC_RESTORE,
+
+ /// Like a regular LOAD but additionally taking/producing a flag.
+ LOAD,
+
+ /// LOAD into r2 (also taking/producing a flag). Like TOC_RESTORE, this is
+ /// a hard coded load instruction.
+ LOAD_TOC,
+
/// OPRC, CHAIN = DYNALLOC(CHAIN, NEGSIZE, FRAME_INDEX)
/// This instruction is lowered in PPCRegisterInfo::eliminateFrameIndex to
/// compute an allocation on the stack.
DYNALLOC,
-
+
/// GlobalBaseReg - On Darwin, this node represents the result of the mflr
/// at function entry, used for PIC code.
GlobalBaseReg,
-
+
/// These nodes represent the 32-bit PPC shifts that operate on 6-bit
/// shift amounts. These nodes are generated by the multi-precision shift
/// code.
SRL, SRA, SHL,
-
+
/// EXTSW_32 - This is the EXTSW instruction for use with "32-bit"
/// registers.
EXTSW_32,
- /// STD_32 - This is the STD instruction for use with "32-bit" registers.
- STD_32,
-
/// CALL - A direct function call.
- CALL_Macho, CALL_ELF,
-
+ /// CALL_NOP_SVR4 is a call with the special NOP which follows 64-bit
+ /// SVR4 calls.
+ CALL_Darwin, CALL_SVR4, CALL_NOP_SVR4,
+
+ /// NOP - Special NOP which follows 64-bit SVR4 calls.
+ NOP,
+
/// CHAIN,FLAG = MTCTR(VAL, CHAIN[, INFLAG]) - Directly corresponds to a
/// MTCTR instruction.
MTCTR,
-
+
/// CHAIN,FLAG = BCTRL(CHAIN, INFLAG) - Directly corresponds to a
/// BCTRL instruction.
- BCTRL_Macho, BCTRL_ELF,
-
+ BCTRL_Darwin, BCTRL_SVR4,
+
/// Return with a flag operand, matched by 'blr'
RET_FLAG,
-
- /// R32 = MFCR(CRREG, INFLAG) - Represents the MFCR/MFOCRF instructions.
- /// This copies the bits corresponding to the specified CRREG into the
- /// resultant GPR. Bits corresponding to other CR regs are undefined.
+
+ /// R32 = MFCR(CRREG, INFLAG) - Represents the MFCRpseud/MFOCRF
+ /// instructions. This copies the bits corresponding to the specified
+ /// CRREG into the resultant GPR. Bits corresponding to other CR regs
+ /// are undefined.
MFCR,
/// RESVEC = VCMP(LHS, RHS, OPC) - Represents one of the altivec VCMP*
/// encoding for the OPC field to identify the compare. For example, 838
/// is VCMPGTSH.
VCMP,
-
+
/// RESVEC, OUTFLAG = VCMPo(LHS, RHS, OPC) - Represents one of the
- /// altivec VCMP*o instructions. For lack of better number, we use the
+ /// altivec VCMP*o instructions. For lack of better number, we use the
/// opcode number encoding for the OPC field to identify the compare. For
/// example, 838 is VCMPGTSH.
VCMPo,
-
+
/// CHAIN = COND_BRANCH CHAIN, CRRC, OPC, DESTBB [, INFLAG] - This
/// corresponds to the COND_BRANCH pseudo instruction. CRRC is the
/// condition register to branch on, OPC is the branch opcode to use (e.g.
/// PPC::BLE), DESTBB is the destination block to branch to, and INFLAG is
/// an optional input flag argument.
COND_BRANCH,
-
- /// CHAIN = STBRX CHAIN, GPRC, Ptr, SRCVALUE, Type - This is a
+
+ // The following 5 instructions are used only as part of the
+ // long double-to-int conversion sequence.
+
+ /// OUTFLAG = MFFS F8RC - This moves the FPSCR (not modelled) into the
+ /// register.
+ MFFS,
+
+ /// OUTFLAG = MTFSB0 INFLAG - This clears a bit in the FPSCR.
+ MTFSB0,
+
+ /// OUTFLAG = MTFSB1 INFLAG - This sets a bit in the FPSCR.
+ MTFSB1,
+
+ /// F8RC, OUTFLAG = FADDRTZ F8RC, F8RC, INFLAG - This is an FADD done with
+ /// rounding towards zero. It has flags added so it won't move past the
+ /// FPSCR-setting instructions.
+ FADDRTZ,
+
+ /// MTFSF = F8RC, INFLAG - This moves the register into the FPSCR.
+ MTFSF,
+
+ /// LARX = This corresponds to PPC l{w|d}arx instrcution: load and
+ /// reserve indexed. This is used to implement atomic operations.
+ LARX,
+
+ /// STCX = This corresponds to PPC stcx. instrcution: store conditional
+ /// indexed. This is used to implement atomic operations.
+ STCX,
+
+ /// TC_RETURN - A tail call return.
+ /// operand #0 chain
+ /// operand #1 callee (register or absolute)
+ /// operand #2 stack adjustment
+ /// operand #3 optional in flag
+ TC_RETURN,
+
+ /// ch, gl = CR6[UN]SET ch, inglue - Toggle CR bit 6 for SVR4 vararg calls
+ CR6SET,
+ CR6UNSET,
+
+ /// STD_32 - This is the STD instruction for use with "32-bit" registers.
+ STD_32 = ISD::FIRST_TARGET_MEMORY_OPCODE,
+
+ /// CHAIN = STBRX CHAIN, GPRC, Ptr, Type - This is a
/// byte-swapping store instruction. It byte-swaps the low "Type" bits of
/// the GPRC input, then stores it through Ptr. Type can be either i16 or
/// i32.
- STBRX,
-
- /// GPRC, CHAIN = LBRX CHAIN, Ptr, SRCVALUE, Type - This is a
+ STBRX,
+
+ /// GPRC, CHAIN = LBRX CHAIN, Ptr, Type - This is a
/// byte-swapping load instruction. It loads "Type" bits, byte swaps it,
/// then puts it in the bottom bits of the GPRC. TYPE can be either i16
/// or i32.
namespace PPC {
/// isVPKUHUMShuffleMask - Return true if this is the shuffle mask for a
/// VPKUHUM instruction.
- bool isVPKUHUMShuffleMask(SDNode *N, bool isUnary);
-
+ bool isVPKUHUMShuffleMask(ShuffleVectorSDNode *N, bool isUnary);
+
/// isVPKUWUMShuffleMask - Return true if this is the shuffle mask for a
/// VPKUWUM instruction.
- bool isVPKUWUMShuffleMask(SDNode *N, bool isUnary);
+ bool isVPKUWUMShuffleMask(ShuffleVectorSDNode *N, bool isUnary);
/// isVMRGLShuffleMask - Return true if this is a shuffle mask suitable for
/// a VRGL* instruction with the specified unit size (1,2 or 4 bytes).
- bool isVMRGLShuffleMask(SDNode *N, unsigned UnitSize, bool isUnary);
+ bool isVMRGLShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,
+ bool isUnary);
/// isVMRGHShuffleMask - Return true if this is a shuffle mask suitable for
/// a VRGH* instruction with the specified unit size (1,2 or 4 bytes).
- bool isVMRGHShuffleMask(SDNode *N, unsigned UnitSize, bool isUnary);
-
+ bool isVMRGHShuffleMask(ShuffleVectorSDNode *N, unsigned UnitSize,
+ bool isUnary);
+
/// isVSLDOIShuffleMask - If this is a vsldoi shuffle mask, return the shift
/// amount, otherwise return -1.
int isVSLDOIShuffleMask(SDNode *N, bool isUnary);
-
+
/// isSplatShuffleMask - Return true if the specified VECTOR_SHUFFLE operand
/// specifies a splat of a single element that is suitable for input to
/// VSPLTB/VSPLTH/VSPLTW.
- bool isSplatShuffleMask(SDNode *N, unsigned EltSize);
-
+ bool isSplatShuffleMask(ShuffleVectorSDNode *N, unsigned EltSize);
+
+ /// isAllNegativeZeroVector - Returns true if all elements of build_vector
+ /// are -0.0.
+ bool isAllNegativeZeroVector(SDNode *N);
+
/// getVSPLTImmediate - Return the appropriate VSPLT* immediate to splat the
/// specified isSplatShuffleMask VECTOR_SHUFFLE mask.
unsigned getVSPLTImmediate(SDNode *N, unsigned EltSize);
-
+
/// get_VSPLTI_elt - If this is a build_vector of constants which can be
/// formed by using a vspltis[bhw] instruction of the specified element
/// size, return the constant being splatted. The ByteSize field indicates
/// the number of bytes of each element [124] -> [bhw].
- SDOperand get_VSPLTI_elt(SDNode *N, unsigned ByteSize, SelectionDAG &DAG);
+ SDValue get_VSPLTI_elt(SDNode *N, unsigned ByteSize, SelectionDAG &DAG);
}
-
+
class PPCTargetLowering : public TargetLowering {
- int VarArgsFrameIndex; // FrameIndex for start of varargs area.
- int ReturnAddrIndex; // FrameIndex for return slot.
const PPCSubtarget &PPCSubTarget;
+
public:
- PPCTargetLowering(PPCTargetMachine &TM);
-
+ explicit PPCTargetLowering(PPCTargetMachine &TM);
+
/// getTargetNodeName() - This method returns the name of a target specific
/// DAG node.
virtual const char *getTargetNodeName(unsigned Opcode) const;
+ virtual MVT getShiftAmountTy(EVT LHSTy) const { return MVT::i32; }
+
+ /// getSetCCResultType - Return the ISD::SETCC ValueType
+ virtual EVT getSetCCResultType(EVT VT) const;
+
/// getPreIndexedAddressParts - returns true by value, base pointer and
/// offset pointer and addressing mode by reference if the node's address
/// can be legally represented as pre-indexed load / store address.
- virtual bool getPreIndexedAddressParts(SDNode *N, SDOperand &Base,
- SDOperand &Offset,
+ virtual bool getPreIndexedAddressParts(SDNode *N, SDValue &Base,
+ SDValue &Offset,
ISD::MemIndexedMode &AM,
- SelectionDAG &DAG);
-
+ SelectionDAG &DAG) const;
+
/// SelectAddressRegReg - Given the specified addressed, check to see if it
/// can be represented as an indexed [r+r] operation. Returns false if it
/// can be more efficiently represented with [r+imm].
- bool SelectAddressRegReg(SDOperand N, SDOperand &Base, SDOperand &Index,
- SelectionDAG &DAG);
-
+ bool SelectAddressRegReg(SDValue N, SDValue &Base, SDValue &Index,
+ SelectionDAG &DAG) const;
+
/// SelectAddressRegImm - Returns true if the address N can be represented
/// by a base register plus a signed 16-bit displacement [r+imm], and if it
/// is not better represented as reg+reg.
- bool SelectAddressRegImm(SDOperand N, SDOperand &Disp, SDOperand &Base,
- SelectionDAG &DAG);
-
+ bool SelectAddressRegImm(SDValue N, SDValue &Disp, SDValue &Base,
+ SelectionDAG &DAG) const;
+
/// SelectAddressRegRegOnly - Given the specified addressed, force it to be
/// represented as an indexed [r+r] operation.
- bool SelectAddressRegRegOnly(SDOperand N, SDOperand &Base, SDOperand &Index,
- SelectionDAG &DAG);
+ bool SelectAddressRegRegOnly(SDValue N, SDValue &Base, SDValue &Index,
+ SelectionDAG &DAG) const;
/// SelectAddressRegImmShift - Returns true if the address N can be
/// represented by a base register plus a signed 14-bit displacement
/// [r+imm*4]. Suitable for use by STD and friends.
- bool SelectAddressRegImmShift(SDOperand N, SDOperand &Disp, SDOperand &Base,
- SelectionDAG &DAG);
+ bool SelectAddressRegImmShift(SDValue N, SDValue &Disp, SDValue &Base,
+ SelectionDAG &DAG) const;
+
+ Sched::Preference getSchedulingPreference(SDNode *N) const;
-
/// LowerOperation - Provide custom lowering hooks for some operations.
///
- virtual SDOperand LowerOperation(SDOperand Op, SelectionDAG &DAG);
-
- virtual SDOperand PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
-
- virtual void computeMaskedBitsForTargetNode(const SDOperand Op,
- uint64_t Mask,
- uint64_t &KnownZero,
- uint64_t &KnownOne,
+ virtual SDValue LowerOperation(SDValue Op, SelectionDAG &DAG) const;
+
+ /// 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;
+
+ virtual SDValue PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const;
+
+ virtual void computeMaskedBitsForTargetNode(const SDValue Op,
+ APInt &KnownZero,
+ APInt &KnownOne,
+ const SelectionDAG &DAG,
unsigned Depth = 0) const;
- virtual MachineBasicBlock *InsertAtEndOfBasicBlock(MachineInstr *MI,
- MachineBasicBlock *MBB);
-
+ virtual MachineBasicBlock *
+ EmitInstrWithCustomInserter(MachineInstr *MI,
+ MachineBasicBlock *MBB) const;
+ MachineBasicBlock *EmitAtomicBinary(MachineInstr *MI,
+ MachineBasicBlock *MBB, bool is64Bit,
+ unsigned BinOpcode) const;
+ MachineBasicBlock *EmitPartwordAtomicBinary(MachineInstr *MI,
+ MachineBasicBlock *MBB,
+ bool is8bit, unsigned Opcode) const;
+
ConstraintType getConstraintType(const std::string &Constraint) const;
- std::pair<unsigned, const TargetRegisterClass*>
+
+ /// 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::pair<unsigned, const TargetRegisterClass*>
getRegForInlineAsmConstraint(const std::string &Constraint,
- MVT::ValueType VT) const;
- SDOperand isOperandValidForConstraint(SDOperand Op, char ConstraintLetter,
- SelectionDAG &DAG);
+ EVT VT) const;
+
+ /// getByValTypeAlignment - Return the desired alignment for ByVal aggregate
+ /// function arguments in the caller parameter area. This is the actual
+ /// alignment, not its logarithm.
+ unsigned getByValTypeAlignment(Type *Ty) const;
+
+ /// LowerAsmOperandForConstraint - Lower the specified operand into the Ops
+ /// vector. If it is invalid, don't add anything to Ops.
+ virtual void LowerAsmOperandForConstraint(SDValue Op,
+ std::string &Constraint,
+ std::vector<SDValue> &Ops,
+ SelectionDAG &DAG) const;
+
+ /// isLegalAddressingMode - Return true if the addressing mode represented
+ /// by AM is legal for this target, for a load/store of the specified type.
+ virtual bool isLegalAddressingMode(const AddrMode &AM, Type *Ty)const;
/// isLegalAddressImmediate - Return true if the integer value can be used
/// as the offset of the target addressing mode for load / store of the
/// given type.
- virtual bool isLegalAddressImmediate(int64_t V, const Type *Ty) const;
+ virtual bool isLegalAddressImmediate(int64_t V, Type *Ty) const;
/// isLegalAddressImmediate - Return true if the GlobalValue can be used as
/// the offset of the target addressing mode.
virtual bool isLegalAddressImmediate(GlobalValue *GV) const;
- SDOperand LowerFRAMEADDR(SDOperand Op, SelectionDAG &DAG);
+ virtual bool isOffsetFoldingLegal(const GlobalAddressSDNode *GA) const;
+
+ /// getOptimalMemOpType - Returns the target specific optimal type for load
+ /// and store operations as a result of memset, memcpy, and memmove
+ /// lowering. If DstAlign is zero that means it's safe to destination
+ /// alignment can satisfy any constraint. Similarly if SrcAlign is zero it
+ /// means there isn't a need to check it against alignment requirement,
+ /// probably because the source does not need to be loaded. If
+ /// 'IsZeroVal' is true, that means it's safe to return a
+ /// non-scalar-integer type, e.g. empty string source, constant, or loaded
+ /// from memory. 'MemcpyStrSrc' indicates whether the memcpy source is
+ /// constant so it does not need to be loaded.
+ /// It returns EVT::Other if the type should be determined using generic
+ /// target-independent logic.
+ virtual EVT
+ getOptimalMemOpType(uint64_t Size, unsigned DstAlign, unsigned SrcAlign,
+ bool IsZeroVal, bool MemcpyStrSrc,
+ MachineFunction &MF) const;
+
+ /// isFMAFasterThanMulAndAdd - Return true if an FMA operation is faster than
+ /// a pair of mul and add instructions. fmuladd intrinsics will be expanded to
+ /// FMAs when this method returns true (and FMAs are legal), otherwise fmuladd
+ /// is expanded to mul + add.
+ virtual bool isFMAFasterThanMulAndAdd(EVT VT) const;
+
+ private:
+ SDValue getFramePointerFrameIndex(SelectionDAG & DAG) const;
+ SDValue getReturnAddrFrameIndex(SelectionDAG & DAG) const;
+
+ bool
+ IsEligibleForTailCallOptimization(SDValue Callee,
+ CallingConv::ID CalleeCC,
+ bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ SelectionDAG& DAG) const;
+
+ SDValue EmitTailCallLoadFPAndRetAddr(SelectionDAG & DAG,
+ int SPDiff,
+ SDValue Chain,
+ SDValue &LROpOut,
+ SDValue &FPOpOut,
+ bool isDarwinABI,
+ DebugLoc dl) const;
+
+ SDValue LowerRETURNADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFRAMEADDR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerConstantPool(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerBlockAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalTLSAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerGlobalAddress(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerJumpTable(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSETCC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINIT_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerADJUST_TRAMPOLINE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVASTART(SDValue Op, SelectionDAG &DAG,
+ const PPCSubtarget &Subtarget) const;
+ SDValue LowerVAARG(SDValue Op, SelectionDAG &DAG,
+ const PPCSubtarget &Subtarget) const;
+ SDValue LowerSTACKRESTORE(SDValue Op, SelectionDAG &DAG,
+ const PPCSubtarget &Subtarget) const;
+ SDValue LowerDYNAMIC_STACKALLOC(SDValue Op, SelectionDAG &DAG,
+ const PPCSubtarget &Subtarget) const;
+ SDValue LowerSELECT_CC(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFP_TO_INT(SDValue Op, SelectionDAG &DAG, DebugLoc dl) const;
+ SDValue LowerSINT_TO_FP(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerFLT_ROUNDS_(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSHL_PARTS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSRL_PARTS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSRA_PARTS(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerBUILD_VECTOR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerVECTOR_SHUFFLE(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerINTRINSIC_WO_CHAIN(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerSCALAR_TO_VECTOR(SDValue Op, SelectionDAG &DAG) const;
+ SDValue LowerMUL(SDValue Op, SelectionDAG &DAG) 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 FinishCall(CallingConv::ID CallConv, DebugLoc dl, bool isTailCall,
+ bool isVarArg,
+ SelectionDAG &DAG,
+ SmallVector<std::pair<unsigned, SDValue>, 8>
+ &RegsToPass,
+ SDValue InFlag, SDValue Chain,
+ SDValue &Callee,
+ int SPDiff, unsigned NumBytes,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ SmallVectorImpl<SDValue> &InVals) 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(TargetLowering::CallLoweringInfo &CLI,
+ SmallVectorImpl<SDValue> &InVals) const;
+
+ virtual bool
+ CanLowerReturn(CallingConv::ID CallConv, MachineFunction &MF,
+ bool isVarArg,
+ const SmallVectorImpl<ISD::OutputArg> &Outs,
+ LLVMContext &Context) 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;
+
+ SDValue
+ LowerFormalArguments_Darwin(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
+ SDValue
+ LowerFormalArguments_SVR4(SDValue Chain,
+ CallingConv::ID CallConv, bool isVarArg,
+ const SmallVectorImpl<ISD::InputArg> &Ins,
+ DebugLoc dl, SelectionDAG &DAG,
+ SmallVectorImpl<SDValue> &InVals) const;
+
+ SDValue
+ LowerCall_Darwin(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;
+ SDValue
+ LowerCall_SVR4(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;
};
}
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