diff options
Diffstat (limited to 'lib/Target/Mips/MipsISelLowering.h')
| -rw-r--r-- | lib/Target/Mips/MipsISelLowering.h | 151 |
1 files changed, 137 insertions, 14 deletions
diff --git a/lib/Target/Mips/MipsISelLowering.h b/lib/Target/Mips/MipsISelLowering.h index 123a2a6..65f68f0 100644 --- a/lib/Target/Mips/MipsISelLowering.h +++ b/lib/Target/Mips/MipsISelLowering.h @@ -17,6 +17,7 @@ #include "Mips.h" #include "MipsSubtarget.h" +#include "MCTargetDesc/MipsBaseInfo.h" #include "llvm/CodeGen/CallingConvLower.h" #include "llvm/CodeGen/SelectionDAG.h" #include "llvm/IR/Function.h" @@ -69,10 +70,11 @@ namespace llvm { EH_RETURN, // Node used to extract integer from accumulator. - ExtractLOHI, + MFHI, + MFLO, // Node used to insert integers to accumulator. - InsertLOHI, + MTLOHI, // Mult nodes. Mult, @@ -152,6 +154,43 @@ namespace llvm { SETCC_DSP, SELECT_CC_DSP, + // Vector comparisons. + // These take a vector and return a boolean. + VALL_ZERO, + VANY_ZERO, + VALL_NONZERO, + VANY_NONZERO, + + // These take a vector and return a vector bitmask. + VCEQ, + VCLE_S, + VCLE_U, + VCLT_S, + VCLT_U, + + // Element-wise vector max/min. + VSMAX, + VSMIN, + VUMAX, + VUMIN, + + // Vector Shuffle with mask as an operand + VSHF, // Generic shuffle + SHF, // 4-element set shuffle. + ILVEV, // Interleave even elements + ILVOD, // Interleave odd elements + ILVL, // Interleave left elements + ILVR, // Interleave right elements + PCKEV, // Pack even elements + PCKOD, // Pack odd elements + + // Combined (XOR (OR $a, $b), -1) + VNOR, + + // Extended vector element extraction + VEXTRACT_SEXT_ELT, + VEXTRACT_ZEXT_ELT, + // Load/Store Left/Right nodes. LWL = ISD::FIRST_TARGET_MEMORY_OPCODE, LWR, @@ -211,12 +250,72 @@ namespace llvm { protected: SDValue getGlobalReg(SelectionDAG &DAG, EVT Ty) const; - SDValue getAddrLocal(SDValue Op, SelectionDAG &DAG, bool HasMips64) const; - - SDValue getAddrGlobal(SDValue Op, SelectionDAG &DAG, unsigned Flag) const; - - SDValue getAddrGlobalLargeGOT(SDValue Op, SelectionDAG &DAG, - unsigned HiFlag, unsigned LoFlag) const; + // This method creates the following nodes, which are necessary for + // computing a local symbol's address: + // + // (add (load (wrapper $gp, %got(sym)), %lo(sym)) + template<class NodeTy> + SDValue getAddrLocal(NodeTy *N, EVT Ty, SelectionDAG &DAG, + bool HasMips64) const { + SDLoc DL(N); + unsigned GOTFlag = HasMips64 ? MipsII::MO_GOT_PAGE : MipsII::MO_GOT; + SDValue GOT = DAG.getNode(MipsISD::Wrapper, DL, Ty, getGlobalReg(DAG, Ty), + getTargetNode(N, Ty, DAG, GOTFlag)); + SDValue Load = DAG.getLoad(Ty, DL, DAG.getEntryNode(), GOT, + MachinePointerInfo::getGOT(), false, false, + false, 0); + unsigned LoFlag = HasMips64 ? MipsII::MO_GOT_OFST : MipsII::MO_ABS_LO; + SDValue Lo = DAG.getNode(MipsISD::Lo, DL, Ty, + getTargetNode(N, Ty, DAG, LoFlag)); + return DAG.getNode(ISD::ADD, DL, Ty, Load, Lo); + } + + // This method creates the following nodes, which are necessary for + // computing a global symbol's address: + // + // (load (wrapper $gp, %got(sym))) + template<class NodeTy> + SDValue getAddrGlobal(NodeTy *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag, SDValue Chain, + const MachinePointerInfo &PtrInfo) const { + SDLoc DL(N); + SDValue Tgt = DAG.getNode(MipsISD::Wrapper, DL, Ty, getGlobalReg(DAG, Ty), + getTargetNode(N, Ty, DAG, Flag)); + return DAG.getLoad(Ty, DL, Chain, Tgt, PtrInfo, false, false, false, 0); + } + + // This method creates the following nodes, which are necessary for + // computing a global symbol's address in large-GOT mode: + // + // (load (wrapper (add %hi(sym), $gp), %lo(sym))) + template<class NodeTy> + SDValue getAddrGlobalLargeGOT(NodeTy *N, EVT Ty, SelectionDAG &DAG, + unsigned HiFlag, unsigned LoFlag, + SDValue Chain, + const MachinePointerInfo &PtrInfo) const { + SDLoc DL(N); + SDValue Hi = DAG.getNode(MipsISD::Hi, DL, Ty, + getTargetNode(N, Ty, DAG, HiFlag)); + Hi = DAG.getNode(ISD::ADD, DL, Ty, Hi, getGlobalReg(DAG, Ty)); + SDValue Wrapper = DAG.getNode(MipsISD::Wrapper, DL, Ty, Hi, + getTargetNode(N, Ty, DAG, LoFlag)); + return DAG.getLoad(Ty, DL, Chain, Wrapper, PtrInfo, false, false, false, + 0); + } + + // This method creates the following nodes, which are necessary for + // computing a symbol's address in non-PIC mode: + // + // (add %hi(sym), %lo(sym)) + template<class NodeTy> + SDValue getAddrNonPIC(NodeTy *N, EVT Ty, SelectionDAG &DAG) const { + SDLoc DL(N); + SDValue Hi = getTargetNode(N, Ty, DAG, MipsII::MO_ABS_HI); + SDValue Lo = getTargetNode(N, Ty, DAG, MipsII::MO_ABS_LO); + return DAG.getNode(ISD::ADD, DL, Ty, + DAG.getNode(MipsISD::Hi, DL, Ty, Hi), + DAG.getNode(MipsISD::Lo, DL, Ty, Lo)); + } /// This function fills Ops, which is the list of operands that will later /// be used when a function call node is created. It also generates @@ -244,9 +343,8 @@ namespace llvm { Mips16RetHelperConv, NoSpecialCallingConv }; - MipsCC( - CallingConv::ID CallConv, bool IsO32, CCState &Info, - SpecialCallingConvType SpecialCallingConv = NoSpecialCallingConv); + MipsCC(CallingConv::ID CallConv, bool IsO32, bool IsFP64, CCState &Info, + SpecialCallingConvType SpecialCallingConv = NoSpecialCallingConv); void analyzeCallOperands(const SmallVectorImpl<ISD::OutputArg> &Outs, @@ -319,17 +417,39 @@ namespace llvm { CCState &CCInfo; CallingConv::ID CallConv; - bool IsO32; + bool IsO32, IsFP64; SpecialCallingConvType SpecialCallingConv; SmallVector<ByValArgInfo, 2> ByValArgs; }; protected: + SDValue lowerLOAD(SDValue Op, SelectionDAG &DAG) const; + SDValue lowerSTORE(SDValue Op, SelectionDAG &DAG) const; + // Subtarget Info const MipsSubtarget *Subtarget; bool HasMips64, IsN64, IsO32; private: + // Create a TargetGlobalAddress node. + SDValue getTargetNode(GlobalAddressSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; + + // Create a TargetExternalSymbol node. + SDValue getTargetNode(ExternalSymbolSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; + + // Create a TargetBlockAddress node. + SDValue getTargetNode(BlockAddressSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; + + // Create a TargetJumpTable node. + SDValue getTargetNode(JumpTableSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; + + // Create a TargetConstantPool node. + SDValue getTargetNode(ConstantPoolSDNode *N, EVT Ty, SelectionDAG &DAG, + unsigned Flag) const; MipsCC::SpecialCallingConvType getSpecialCallingConv(SDValue Callee) const; // Lower Operand helpers @@ -361,8 +481,6 @@ namespace llvm { SDValue lowerShiftLeftParts(SDValue Op, SelectionDAG& DAG) const; SDValue lowerShiftRightParts(SDValue Op, SelectionDAG& DAG, bool IsSRA) const; - SDValue lowerLOAD(SDValue Op, SelectionDAG &DAG) const; - SDValue lowerSTORE(SDValue Op, SelectionDAG &DAG) const; SDValue lowerADD(SDValue Op, SelectionDAG &DAG) const; SDValue lowerFP_TO_SINT(SDValue Op, SelectionDAG &DAG) const; @@ -433,6 +551,11 @@ namespace llvm { ConstraintWeight getSingleConstraintMatchWeight( AsmOperandInfo &info, const char *constraint) const; + /// This function parses registers that appear in inline-asm constraints. + /// It returns pair (0, 0) on failure. + std::pair<unsigned, const TargetRegisterClass *> + parseRegForInlineAsmConstraint(const StringRef &C, MVT VT) const; + std::pair<unsigned, const TargetRegisterClass*> getRegForInlineAsmConstraint(const std::string &Constraint, MVT VT) const; |