| //===- TargetSelectionDAG.td - Common code for DAG isels ---*- tablegen -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file was developed by the LLVM research group and is distributed under |
| // the University of Illinois Open Source License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| // |
| // This file defines the target-independent interfaces used by SelectionDAG |
| // instruction selection generators. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Type Constraint definitions. |
| // |
| // Note that the semantics of these constraints are hard coded into tblgen. To |
| // modify or add constraints, you have to hack tblgen. |
| // |
| |
| class SDTypeConstraint<int opnum> { |
| int OperandNum = opnum; |
| } |
| |
| // SDTCisVT - The specified operand has exactly this VT. |
| class SDTCisVT<int OpNum, ValueType vt> : SDTypeConstraint<OpNum> { |
| ValueType VT = vt; |
| } |
| |
| class SDTCisPtrTy<int OpNum> : SDTypeConstraint<OpNum>; |
| |
| // SDTCisInt - The specified operand is has integer type. |
| class SDTCisInt<int OpNum> : SDTypeConstraint<OpNum>; |
| |
| // SDTCisFP - The specified operand is has floating point type. |
| class SDTCisFP<int OpNum> : SDTypeConstraint<OpNum>; |
| |
| // SDTCisSameAs - The two specified operands have identical types. |
| class SDTCisSameAs<int OpNum, int OtherOp> : SDTypeConstraint<OpNum> { |
| int OtherOperandNum = OtherOp; |
| } |
| |
| // SDTCisVTSmallerThanOp - The specified operand is a VT SDNode, and its type is |
| // smaller than the 'Other' operand. |
| class SDTCisVTSmallerThanOp<int OpNum, int OtherOp> : SDTypeConstraint<OpNum> { |
| int OtherOperandNum = OtherOp; |
| } |
| |
| class SDTCisOpSmallerThanOp<int SmallOp, int BigOp> : SDTypeConstraint<SmallOp>{ |
| int BigOperandNum = BigOp; |
| } |
| |
| /// SDTCisIntVectorOfSameSize - This indicates that ThisOp and OtherOp are |
| /// packed vector types, and that ThisOp is the result of |
| /// MVT::getIntVectorWithNumElements with the number of elements that ThisOp |
| /// has. |
| class SDTCisIntVectorOfSameSize<int ThisOp, int OtherOp> |
| : SDTypeConstraint<ThisOp> { |
| int OtherOpNum = OtherOp; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Type Profile definitions. |
| // |
| // These use the constraints defined above to describe the type requirements of |
| // the various nodes. These are not hard coded into tblgen, allowing targets to |
| // add their own if needed. |
| // |
| |
| // SDTypeProfile - This profile describes the type requirements of a Selection |
| // DAG node. |
| class SDTypeProfile<int numresults, int numoperands, |
| list<SDTypeConstraint> constraints> { |
| int NumResults = numresults; |
| int NumOperands = numoperands; |
| list<SDTypeConstraint> Constraints = constraints; |
| } |
| |
| // Builtin profiles. |
| def SDTIntLeaf: SDTypeProfile<1, 0, [SDTCisInt<0>]>; // for 'imm'. |
| def SDTFPLeaf : SDTypeProfile<1, 0, [SDTCisFP<0>]>; // for 'fpimm'. |
| def SDTPtrLeaf: SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>; // for '&g'. |
| def SDTOther : SDTypeProfile<1, 0, [SDTCisVT<0, OtherVT>]>; // for 'vt'. |
| def SDTUNDEF : SDTypeProfile<1, 0, []>; // for 'undef'. |
| def SDTUnaryOp : SDTypeProfile<1, 1, []>; // bitconvert |
| |
| def SDTIntBinOp : SDTypeProfile<1, 2, [ // add, and, or, xor, udiv, etc. |
| SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisInt<0> |
| ]>; |
| def SDTIntShiftOp : SDTypeProfile<1, 2, [ // shl, sra, srl |
| SDTCisSameAs<0, 1>, SDTCisInt<0>, SDTCisInt<2> |
| ]>; |
| def SDTFPBinOp : SDTypeProfile<1, 2, [ // fadd, fmul, etc. |
| SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisFP<0> |
| ]>; |
| def SDTFPSignOp : SDTypeProfile<1, 2, [ // fcopysign. |
| SDTCisSameAs<0, 1>, SDTCisFP<0>, SDTCisFP<2> |
| ]>; |
| def SDTFPTernaryOp : SDTypeProfile<1, 3, [ // fmadd, fnmsub, etc. |
| SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisSameAs<0, 3>, SDTCisFP<0> |
| ]>; |
| def SDTIntUnaryOp : SDTypeProfile<1, 1, [ // ctlz |
| SDTCisSameAs<0, 1>, SDTCisInt<0> |
| ]>; |
| def SDTIntExtendOp : SDTypeProfile<1, 1, [ // sext, zext, anyext |
| SDTCisInt<0>, SDTCisInt<1>, SDTCisOpSmallerThanOp<1, 0> |
| ]>; |
| def SDTIntTruncOp : SDTypeProfile<1, 1, [ // trunc |
| SDTCisInt<0>, SDTCisInt<1>, SDTCisOpSmallerThanOp<0, 1> |
| ]>; |
| def SDTFPUnaryOp : SDTypeProfile<1, 1, [ // fneg, fsqrt, etc |
| SDTCisSameAs<0, 1>, SDTCisFP<0> |
| ]>; |
| def SDTFPRoundOp : SDTypeProfile<1, 1, [ // fround |
| SDTCisFP<0>, SDTCisFP<1>, SDTCisOpSmallerThanOp<0, 1> |
| ]>; |
| def SDTFPExtendOp : SDTypeProfile<1, 1, [ // fextend |
| SDTCisFP<0>, SDTCisFP<1>, SDTCisOpSmallerThanOp<1, 0> |
| ]>; |
| def SDTIntToFPOp : SDTypeProfile<1, 1, [ // [su]int_to_fp |
| SDTCisFP<0>, SDTCisInt<1> |
| ]>; |
| def SDTFPToIntOp : SDTypeProfile<1, 1, [ // fp_to_[su]int |
| SDTCisInt<0>, SDTCisFP<1> |
| ]>; |
| def SDTExtInreg : SDTypeProfile<1, 2, [ // sext_inreg |
| SDTCisSameAs<0, 1>, SDTCisInt<0>, SDTCisVT<2, OtherVT>, |
| SDTCisVTSmallerThanOp<2, 1> |
| ]>; |
| |
| def SDTSetCC : SDTypeProfile<1, 3, [ // setcc |
| SDTCisInt<0>, SDTCisSameAs<1, 2>, SDTCisVT<3, OtherVT> |
| ]>; |
| |
| def SDTSelect : SDTypeProfile<1, 3, [ // select |
| SDTCisInt<1>, SDTCisSameAs<0, 2>, SDTCisSameAs<2, 3> |
| ]>; |
| |
| def SDTSelectCC : SDTypeProfile<1, 5, [ // select_cc |
| SDTCisSameAs<1, 2>, SDTCisSameAs<3, 4>, SDTCisSameAs<0, 3>, |
| SDTCisVT<5, OtherVT> |
| ]>; |
| |
| def SDTBr : SDTypeProfile<0, 1, [ // br |
| SDTCisVT<0, OtherVT> |
| ]>; |
| |
| def SDTBrcond : SDTypeProfile<0, 2, [ // brcond |
| SDTCisInt<0>, SDTCisVT<1, OtherVT> |
| ]>; |
| |
| def SDTBrind : SDTypeProfile<0, 1, [ // brind |
| SDTCisPtrTy<0> |
| ]>; |
| |
| def SDTRet : SDTypeProfile<0, 0, []>; // ret |
| |
| def SDTLoad : SDTypeProfile<1, 1, [ // load |
| SDTCisPtrTy<1> |
| ]>; |
| |
| def SDTStore : SDTypeProfile<0, 2, [ // store |
| SDTCisPtrTy<1> |
| ]>; |
| |
| def SDTExtLoad : SDTypeProfile<1, 3, [ // extload |
| SDTCisPtrTy<1>, SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT> |
| ]>; |
| def SDTIntExtLoad : SDTypeProfile<1, 3, [ // sextload, zextload |
| SDTCisInt<0>, SDTCisPtrTy<1>, SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT> |
| ]>; |
| def SDTTruncStore : SDTypeProfile<0, 4, [ // truncstore |
| SDTCisPtrTy<1>, SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT> |
| ]>; |
| |
| def SDTVecShuffle : SDTypeProfile<1, 3, [ |
| SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>, SDTCisIntVectorOfSameSize<3, 0> |
| ]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Node Properties. |
| // |
| // Note: These are hard coded into tblgen. |
| // |
| class SDNodeProperty; |
| def SDNPCommutative : SDNodeProperty; // X op Y == Y op X |
| def SDNPAssociative : SDNodeProperty; // (X op Y) op Z == X op (Y op Z) |
| def SDNPHasChain : SDNodeProperty; // R/W chain operand and result |
| def SDNPOutFlag : SDNodeProperty; // Write a flag result |
| def SDNPInFlag : SDNodeProperty; // Read a flag operand |
| def SDNPOptInFlag : SDNodeProperty; // Optionally read a flag operand |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Node definitions. |
| // |
| class SDNode<string opcode, SDTypeProfile typeprof, |
| list<SDNodeProperty> props = [], string sdclass = "SDNode"> { |
| string Opcode = opcode; |
| string SDClass = sdclass; |
| list<SDNodeProperty> Properties = props; |
| SDTypeProfile TypeProfile = typeprof; |
| } |
| |
| def set; |
| def node; |
| def srcvalue; |
| |
| def imm : SDNode<"ISD::Constant" , SDTIntLeaf , [], "ConstantSDNode">; |
| def fpimm : SDNode<"ISD::TargetConstantFP", |
| SDTFPLeaf, [], "ConstantFPSDNode">; |
| def vt : SDNode<"ISD::VALUETYPE" , SDTOther , [], "VTSDNode">; |
| def bb : SDNode<"ISD::BasicBlock", SDTOther , [], "BasicBlockSDNode">; |
| def cond : SDNode<"ISD::CONDCODE" , SDTOther , [], "CondCodeSDNode">; |
| def undef : SDNode<"ISD::UNDEF" , SDTUNDEF , []>; |
| def globaladdr : SDNode<"ISD::GlobalAddress", SDTPtrLeaf, [], |
| "GlobalAddressSDNode">; |
| def tglobaladdr : SDNode<"ISD::TargetGlobalAddress", SDTPtrLeaf, [], |
| "GlobalAddressSDNode">; |
| def constpool : SDNode<"ISD::ConstantPool", SDTPtrLeaf, [], |
| "ConstantPoolSDNode">; |
| def tconstpool : SDNode<"ISD::TargetConstantPool", SDTPtrLeaf, [], |
| "ConstantPoolSDNode">; |
| def jumptable : SDNode<"ISD::JumpTable", SDTPtrLeaf, [], |
| "JumpTableSDNode">; |
| def tjumptable : SDNode<"ISD::TargetJumpTable", SDTPtrLeaf, [], |
| "JumpTableSDNode">; |
| def frameindex : SDNode<"ISD::FrameIndex", SDTPtrLeaf, [], |
| "FrameIndexSDNode">; |
| def tframeindex : SDNode<"ISD::TargetFrameIndex", SDTPtrLeaf, [], |
| "FrameIndexSDNode">; |
| def externalsym : SDNode<"ISD::ExternalSymbol", SDTPtrLeaf, [], |
| "ExternalSymbolSDNode">; |
| def texternalsym: SDNode<"ISD::TargetExternalSymbol", SDTPtrLeaf, [], |
| "ExternalSymbolSDNode">; |
| |
| def add : SDNode<"ISD::ADD" , SDTIntBinOp , |
| [SDNPCommutative, SDNPAssociative]>; |
| def sub : SDNode<"ISD::SUB" , SDTIntBinOp>; |
| def mul : SDNode<"ISD::MUL" , SDTIntBinOp, |
| [SDNPCommutative, SDNPAssociative]>; |
| def mulhs : SDNode<"ISD::MULHS" , SDTIntBinOp, [SDNPCommutative]>; |
| def mulhu : SDNode<"ISD::MULHU" , SDTIntBinOp, [SDNPCommutative]>; |
| def sdiv : SDNode<"ISD::SDIV" , SDTIntBinOp>; |
| def udiv : SDNode<"ISD::UDIV" , SDTIntBinOp>; |
| def srem : SDNode<"ISD::SREM" , SDTIntBinOp>; |
| def urem : SDNode<"ISD::UREM" , SDTIntBinOp>; |
| def srl : SDNode<"ISD::SRL" , SDTIntShiftOp>; |
| def sra : SDNode<"ISD::SRA" , SDTIntShiftOp>; |
| def shl : SDNode<"ISD::SHL" , SDTIntShiftOp>; |
| def rotl : SDNode<"ISD::ROTL" , SDTIntShiftOp>; |
| def rotr : SDNode<"ISD::ROTR" , SDTIntShiftOp>; |
| def and : SDNode<"ISD::AND" , SDTIntBinOp, |
| [SDNPCommutative, SDNPAssociative]>; |
| def or : SDNode<"ISD::OR" , SDTIntBinOp, |
| [SDNPCommutative, SDNPAssociative]>; |
| def xor : SDNode<"ISD::XOR" , SDTIntBinOp, |
| [SDNPCommutative, SDNPAssociative]>; |
| def addc : SDNode<"ISD::ADDC" , SDTIntBinOp, |
| [SDNPCommutative, SDNPOutFlag]>; |
| def adde : SDNode<"ISD::ADDE" , SDTIntBinOp, |
| [SDNPCommutative, SDNPOutFlag, SDNPInFlag]>; |
| def subc : SDNode<"ISD::SUBC" , SDTIntBinOp, |
| [SDNPOutFlag]>; |
| def sube : SDNode<"ISD::SUBE" , SDTIntBinOp, |
| [SDNPOutFlag, SDNPInFlag]>; |
| |
| def sext_inreg : SDNode<"ISD::SIGN_EXTEND_INREG", SDTExtInreg>; |
| def bswap : SDNode<"ISD::BSWAP" , SDTIntUnaryOp>; |
| def ctlz : SDNode<"ISD::CTLZ" , SDTIntUnaryOp>; |
| def cttz : SDNode<"ISD::CTTZ" , SDTIntUnaryOp>; |
| def ctpop : SDNode<"ISD::CTPOP" , SDTIntUnaryOp>; |
| def sext : SDNode<"ISD::SIGN_EXTEND", SDTIntExtendOp>; |
| def zext : SDNode<"ISD::ZERO_EXTEND", SDTIntExtendOp>; |
| def anyext : SDNode<"ISD::ANY_EXTEND" , SDTIntExtendOp>; |
| def trunc : SDNode<"ISD::TRUNCATE" , SDTIntTruncOp>; |
| def bitconvert : SDNode<"ISD::BIT_CONVERT", SDTUnaryOp>; |
| |
| def fadd : SDNode<"ISD::FADD" , SDTFPBinOp, [SDNPCommutative]>; |
| def fsub : SDNode<"ISD::FSUB" , SDTFPBinOp>; |
| def fmul : SDNode<"ISD::FMUL" , SDTFPBinOp, [SDNPCommutative]>; |
| def fdiv : SDNode<"ISD::FDIV" , SDTFPBinOp>; |
| def frem : SDNode<"ISD::FREM" , SDTFPBinOp>; |
| def fabs : SDNode<"ISD::FABS" , SDTFPUnaryOp>; |
| def fneg : SDNode<"ISD::FNEG" , SDTFPUnaryOp>; |
| def fsqrt : SDNode<"ISD::FSQRT" , SDTFPUnaryOp>; |
| def fsin : SDNode<"ISD::FSIN" , SDTFPUnaryOp>; |
| def fcos : SDNode<"ISD::FCOS" , SDTFPUnaryOp>; |
| |
| def fround : SDNode<"ISD::FP_ROUND" , SDTFPRoundOp>; |
| def fextend : SDNode<"ISD::FP_EXTEND" , SDTFPExtendOp>; |
| def fcopysign : SDNode<"ISD::FCOPYSIGN" , SDTFPSignOp>; |
| |
| def sint_to_fp : SDNode<"ISD::SINT_TO_FP" , SDTIntToFPOp>; |
| def uint_to_fp : SDNode<"ISD::UINT_TO_FP" , SDTIntToFPOp>; |
| def fp_to_sint : SDNode<"ISD::FP_TO_SINT" , SDTFPToIntOp>; |
| def fp_to_uint : SDNode<"ISD::FP_TO_UINT" , SDTFPToIntOp>; |
| |
| def setcc : SDNode<"ISD::SETCC" , SDTSetCC>; |
| def select : SDNode<"ISD::SELECT" , SDTSelect>; |
| def selectcc : SDNode<"ISD::SELECT_CC" , SDTSelectCC>; |
| |
| def brcond : SDNode<"ISD::BRCOND" , SDTBrcond, [SDNPHasChain]>; |
| def brind : SDNode<"ISD::BRIND" , SDTBrind, [SDNPHasChain]>; |
| def br : SDNode<"ISD::BR" , SDTBr, [SDNPHasChain]>; |
| def ret : SDNode<"ISD::RET" , SDTRet, [SDNPHasChain]>; |
| |
| def load : SDNode<"ISD::LOAD" , SDTLoad, [SDNPHasChain]>; |
| def store : SDNode<"ISD::STORE" , SDTStore, [SDNPHasChain]>; |
| |
| // Do not use sextld and zextld directly. Use sextload and zextload (see |
| // below) which pass in a dummy srcvalue node which tblgen will skip over. |
| def sextld : SDNode<"ISD::SEXTLOAD" , SDTIntExtLoad, [SDNPHasChain]>; |
| def zextld : SDNode<"ISD::ZEXTLOAD" , SDTIntExtLoad, [SDNPHasChain]>; |
| def extld : SDNode<"ISD::EXTLOAD" , SDTExtLoad, [SDNPHasChain]>; |
| def truncst : SDNode<"ISD::TRUNCSTORE" , SDTTruncStore, [SDNPHasChain]>; |
| |
| def vector_shuffle : SDNode<"ISD::VECTOR_SHUFFLE", SDTVecShuffle, []>; |
| def build_vector : SDNode<"ISD::BUILD_VECTOR", SDTypeProfile<1, 0, []>, []>; |
| def scalar_to_vector : SDNode<"ISD::SCALAR_TO_VECTOR", SDTypeProfile<1, 1, []>, |
| []>; |
| def vector_extract : SDNode<"ISD::EXTRACT_VECTOR_ELT", |
| SDTypeProfile<1, 2, []>, []>; |
| def vector_insert : SDNode<"ISD::INSERT_VECTOR_ELT", |
| SDTypeProfile<1, 3, [SDTCisSameAs<0, 1>]>, []>; |
| |
| // Nodes for intrinsics, you should use the intrinsic itself and let tblgen use |
| // these internally. Don't reference these directly. |
| def intrinsic_void : SDNode<"ISD::INTRINSIC_VOID", |
| SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>, |
| [SDNPHasChain]>; |
| def intrinsic_w_chain : SDNode<"ISD::INTRINSIC_W_CHAIN", |
| SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>, |
| [SDNPHasChain]>; |
| def intrinsic_wo_chain : SDNode<"ISD::INTRINSIC_WO_CHAIN", |
| SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>, []>; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Condition Codes |
| |
| class CondCode; // ISD::CondCode enums |
| def SETOEQ : CondCode; def SETOGT : CondCode; |
| def SETOGE : CondCode; def SETOLT : CondCode; def SETOLE : CondCode; |
| def SETONE : CondCode; def SETO : CondCode; def SETUO : CondCode; |
| def SETUEQ : CondCode; def SETUGT : CondCode; def SETUGE : CondCode; |
| def SETULT : CondCode; def SETULE : CondCode; def SETUNE : CondCode; |
| |
| def SETEQ : CondCode; def SETGT : CondCode; def SETGE : CondCode; |
| def SETLT : CondCode; def SETLE : CondCode; def SETNE : CondCode; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Node Transformation Functions. |
| // |
| // This mechanism allows targets to manipulate nodes in the output DAG once a |
| // match has been formed. This is typically used to manipulate immediate |
| // values. |
| // |
| class SDNodeXForm<SDNode opc, code xformFunction> { |
| SDNode Opcode = opc; |
| code XFormFunction = xformFunction; |
| } |
| |
| def NOOP_SDNodeXForm : SDNodeXForm<imm, [{}]>; |
| |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Pattern Fragments. |
| // |
| // Pattern fragments are reusable chunks of dags that match specific things. |
| // They can take arguments and have C++ predicates that control whether they |
| // match. They are intended to make the patterns for common instructions more |
| // compact and readable. |
| // |
| |
| /// PatFrag - Represents a pattern fragment. This can match something on the |
| /// DAG, frame a single node to multiply nested other fragments. |
| /// |
| class PatFrag<dag ops, dag frag, code pred = [{}], |
| SDNodeXForm xform = NOOP_SDNodeXForm> { |
| dag Operands = ops; |
| dag Fragment = frag; |
| code Predicate = pred; |
| SDNodeXForm OperandTransform = xform; |
| } |
| |
| // PatLeaf's are pattern fragments that have no operands. This is just a helper |
| // to define immediates and other common things concisely. |
| class PatLeaf<dag frag, code pred = [{}], SDNodeXForm xform = NOOP_SDNodeXForm> |
| : PatFrag<(ops), frag, pred, xform>; |
| |
| // Leaf fragments. |
| |
| def vtInt : PatLeaf<(vt), [{ return MVT::isInteger(N->getVT()); }]>; |
| def vtFP : PatLeaf<(vt), [{ return MVT::isFloatingPoint(N->getVT()); }]>; |
| |
| def immAllOnes : PatLeaf<(imm), [{ return N->isAllOnesValue(); }]>; |
| def immAllOnesV: PatLeaf<(build_vector), [{ |
| return ISD::isBuildVectorAllOnes(N); |
| }]>; |
| def immAllZerosV: PatLeaf<(build_vector), [{ |
| return ISD::isBuildVectorAllZeros(N); |
| }]>; |
| |
| def immAllOnesV_bc: PatLeaf<(bitconvert), [{ |
| return ISD::isBuildVectorAllOnes(N); |
| }]>; |
| |
| |
| // Other helper fragments. |
| def not : PatFrag<(ops node:$in), (xor node:$in, immAllOnes)>; |
| def vnot : PatFrag<(ops node:$in), (xor node:$in, immAllOnesV)>; |
| def vnot_conv : PatFrag<(ops node:$in), (xor node:$in, immAllOnesV_bc)>; |
| def ineg : PatFrag<(ops node:$in), (sub 0, node:$in)>; |
| |
| // extending load & truncstore fragments. |
| def sextload : PatFrag<(ops node:$ptr, node:$vt), |
| (sextld node:$ptr, srcvalue:$dummy, node:$vt)>; |
| def zextload : PatFrag<(ops node:$ptr, node:$vt), |
| (zextld node:$ptr, srcvalue:$dummy, node:$vt)>; |
| def extload : PatFrag<(ops node:$ptr, node:$vt), |
| (extld node:$ptr, srcvalue:$dummy, node:$vt)>; |
| def truncstore : PatFrag<(ops node:$val, node:$ptr, node:$vt), |
| (truncst node:$val, node:$ptr, srcvalue:$dummy, |
| node:$vt)>; |
| |
| // setcc convenience fragments. |
| def setoeq : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETOEQ)>; |
| def setogt : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETOGT)>; |
| def setoge : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETOGE)>; |
| def setolt : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETOLT)>; |
| def setole : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETOLE)>; |
| def setone : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETONE)>; |
| def seto : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETO)>; |
| def setuo : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETUO)>; |
| def setueq : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETUEQ)>; |
| def setugt : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETUGT)>; |
| def setuge : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETUGE)>; |
| def setult : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETULT)>; |
| def setule : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETULE)>; |
| def setune : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETUNE)>; |
| def seteq : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETEQ)>; |
| def setgt : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETGT)>; |
| def setge : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETGE)>; |
| def setlt : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETLT)>; |
| def setle : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETLE)>; |
| def setne : PatFrag<(ops node:$lhs, node:$rhs), |
| (setcc node:$lhs, node:$rhs, SETNE)>; |
| |
| //===----------------------------------------------------------------------===// |
| // Selection DAG Pattern Support. |
| // |
| // Patterns are what are actually matched against the target-flavored |
| // instruction selection DAG. Instructions defined by the target implicitly |
| // define patterns in most cases, but patterns can also be explicitly added when |
| // an operation is defined by a sequence of instructions (e.g. loading a large |
| // immediate value on RISC targets that do not support immediates as large as |
| // their GPRs). |
| // |
| |
| class Pattern<dag patternToMatch, list<dag> resultInstrs> { |
| dag PatternToMatch = patternToMatch; |
| list<dag> ResultInstrs = resultInstrs; |
| list<Predicate> Predicates = []; // See class Instruction in Target.td. |
| int AddedComplexity = 0; // See class Instruction in Target.td. |
| } |
| |
| // Pat - A simple (but common) form of a pattern, which produces a simple result |
| // not needing a full list. |
| class Pat<dag pattern, dag result> : Pattern<pattern, [result]>; |
| |
| //===----------------------------------------------------------------------===// |
| // Complex pattern definitions. |
| // |
| // Complex patterns, e.g. X86 addressing mode, requires pattern matching code |
| // in C++. NumOperands is the number of operands returned by the select function; |
| // SelectFunc is the name of the function used to pattern match the max. pattern; |
| // RootNodes are the list of possible root nodes of the sub-dags to match. |
| // e.g. X86 addressing mode - def addr : ComplexPattern<4, "SelectAddr", [add]>; |
| // |
| class ComplexPattern<ValueType ty, int numops, string fn, list<SDNode> roots = []> { |
| ValueType Ty = ty; |
| int NumOperands = numops; |
| string SelectFunc = fn; |
| list<SDNode> RootNodes = roots; |
| } |
| |
| //===----------------------------------------------------------------------===// |
| // Dwarf support. |
| // |
| def SDT_dwarf_loc : SDTypeProfile<0, 3, |
| [SDTCisInt<0>, SDTCisInt<1>, SDTCisInt<2>]>; |
| def dwarf_loc : SDNode<"ISD::DEBUG_LOC", SDT_dwarf_loc,[SDNPHasChain]>; |
| |
| def SDT_dwarf_label : SDTypeProfile<0, 1, [SDTCisInt<0>]>; |
| def dwarf_label : SDNode<"ISD::DEBUG_LABEL", SDT_dwarf_label,[SDNPHasChain]>; |
| |
| |
| |