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//===- TargetSelectionDAG.td - Common code for DAG isels ---*- tablegen -*-===//
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// The LLVM Compiler Infrastructure
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//===----------------------------------------------------------------------===//
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// This file defines the target-independent interfaces used by SelectionDAG
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// instruction selection generators.
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//===----------------------------------------------------------------------===//
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//===----------------------------------------------------------------------===//
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// Selection DAG Type Constraint definitions.
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// Note that the semantics of these constraints are hard coded into tblgen. To
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// modify or add constraints, you have to hack tblgen.
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class SDTypeConstraint<int opnum> {
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int OperandNum = opnum;
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// SDTCisVT - The specified operand has exactly this VT.
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class SDTCisVT<int OpNum, ValueType vt> : SDTypeConstraint<OpNum> {
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class SDTCisPtrTy<int OpNum> : SDTypeConstraint<OpNum>;
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// SDTCisInt - The specified operand has integer type.
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class SDTCisInt<int OpNum> : SDTypeConstraint<OpNum>;
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// SDTCisFP - The specified operand has floating-point type.
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class SDTCisFP<int OpNum> : SDTypeConstraint<OpNum>;
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// SDTCisVec - The specified operand has a vector type.
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class SDTCisVec<int OpNum> : SDTypeConstraint<OpNum>;
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// SDTCisSameAs - The two specified operands have identical types.
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class SDTCisSameAs<int OpNum, int OtherOp> : SDTypeConstraint<OpNum> {
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int OtherOperandNum = OtherOp;
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// SDTCisVTSmallerThanOp - The specified operand is a VT SDNode, and its type is
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// smaller than the 'Other' operand.
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class SDTCisVTSmallerThanOp<int OpNum, int OtherOp> : SDTypeConstraint<OpNum> {
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int OtherOperandNum = OtherOp;
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class SDTCisOpSmallerThanOp<int SmallOp, int BigOp> : SDTypeConstraint<SmallOp>{
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int BigOperandNum = BigOp;
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/// SDTCisEltOfVec - This indicates that ThisOp is a scalar type of the same
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/// type as the element type of OtherOp, which is a vector type.
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class SDTCisEltOfVec<int ThisOp, int OtherOp>
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: SDTypeConstraint<ThisOp> {
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int OtherOpNum = OtherOp;
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//===----------------------------------------------------------------------===//
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// Selection DAG Type Profile definitions.
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// These use the constraints defined above to describe the type requirements of
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// the various nodes. These are not hard coded into tblgen, allowing targets to
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// add their own if needed.
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// SDTypeProfile - This profile describes the type requirements of a Selection
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class SDTypeProfile<int numresults, int numoperands,
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list<SDTypeConstraint> constraints> {
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int NumResults = numresults;
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int NumOperands = numoperands;
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list<SDTypeConstraint> Constraints = constraints;
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def SDTIntLeaf: SDTypeProfile<1, 0, [SDTCisInt<0>]>; // for 'imm'.
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def SDTFPLeaf : SDTypeProfile<1, 0, [SDTCisFP<0>]>; // for 'fpimm'.
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def SDTPtrLeaf: SDTypeProfile<1, 0, [SDTCisPtrTy<0>]>; // for '&g'.
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def SDTOther : SDTypeProfile<1, 0, [SDTCisVT<0, OtherVT>]>; // for 'vt'.
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def SDTUNDEF : SDTypeProfile<1, 0, []>; // for 'undef'.
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def SDTUnaryOp : SDTypeProfile<1, 1, []>; // for bitconvert.
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def SDTIntBinOp : SDTypeProfile<1, 2, [ // add, and, or, xor, udiv, etc.
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SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisInt<0>
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def SDTIntShiftOp : SDTypeProfile<1, 2, [ // shl, sra, srl
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SDTCisSameAs<0, 1>, SDTCisInt<0>, SDTCisInt<2>
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def SDTFPBinOp : SDTypeProfile<1, 2, [ // fadd, fmul, etc.
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SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisFP<0>
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def SDTFPSignOp : SDTypeProfile<1, 2, [ // fcopysign.
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SDTCisSameAs<0, 1>, SDTCisFP<0>, SDTCisFP<2>
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def SDTFPTernaryOp : SDTypeProfile<1, 3, [ // fmadd, fnmsub, etc.
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SDTCisSameAs<0, 1>, SDTCisSameAs<0, 2>, SDTCisSameAs<0, 3>, SDTCisFP<0>
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def SDTIntUnaryOp : SDTypeProfile<1, 1, [ // ctlz
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SDTCisSameAs<0, 1>, SDTCisInt<0>
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def SDTIntExtendOp : SDTypeProfile<1, 1, [ // sext, zext, anyext
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SDTCisInt<0>, SDTCisInt<1>, SDTCisOpSmallerThanOp<1, 0>
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def SDTIntTruncOp : SDTypeProfile<1, 1, [ // trunc
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SDTCisInt<0>, SDTCisInt<1>, SDTCisOpSmallerThanOp<0, 1>
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def SDTFPUnaryOp : SDTypeProfile<1, 1, [ // fneg, fsqrt, etc
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SDTCisSameAs<0, 1>, SDTCisFP<0>
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def SDTFPRoundOp : SDTypeProfile<1, 1, [ // fround
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SDTCisFP<0>, SDTCisFP<1>, SDTCisOpSmallerThanOp<0, 1>
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def SDTFPExtendOp : SDTypeProfile<1, 1, [ // fextend
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SDTCisFP<0>, SDTCisFP<1>, SDTCisOpSmallerThanOp<1, 0>
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def SDTIntToFPOp : SDTypeProfile<1, 1, [ // [su]int_to_fp
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SDTCisFP<0>, SDTCisInt<1>
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def SDTFPToIntOp : SDTypeProfile<1, 1, [ // fp_to_[su]int
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SDTCisInt<0>, SDTCisFP<1>
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def SDTExtInreg : SDTypeProfile<1, 2, [ // sext_inreg
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SDTCisSameAs<0, 1>, SDTCisInt<0>, SDTCisVT<2, OtherVT>,
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SDTCisVTSmallerThanOp<2, 1>
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def SDTSetCC : SDTypeProfile<1, 3, [ // setcc
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SDTCisInt<0>, SDTCisSameAs<1, 2>, SDTCisVT<3, OtherVT>
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def SDTSelect : SDTypeProfile<1, 3, [ // select
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SDTCisInt<1>, SDTCisSameAs<0, 2>, SDTCisSameAs<2, 3>
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def SDTSelectCC : SDTypeProfile<1, 5, [ // select_cc
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SDTCisSameAs<1, 2>, SDTCisSameAs<3, 4>, SDTCisSameAs<0, 3>,
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def SDTBr : SDTypeProfile<0, 1, [ // br
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def SDTBrcond : SDTypeProfile<0, 2, [ // brcond
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SDTCisInt<0>, SDTCisVT<1, OtherVT>
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def SDTBrind : SDTypeProfile<0, 1, [ // brind
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def SDTNone : SDTypeProfile<0, 0, []>; // ret, trap
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def SDTLoad : SDTypeProfile<1, 1, [ // load
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def SDTStore : SDTypeProfile<0, 2, [ // store
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def SDTIStore : SDTypeProfile<1, 3, [ // indexed store
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SDTCisSameAs<0, 2>, SDTCisPtrTy<0>, SDTCisPtrTy<3>
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def SDTVecShuffle : SDTypeProfile<1, 2, [
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SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>
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def SDTVecExtract : SDTypeProfile<1, 2, [ // vector extract
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SDTCisEltOfVec<0, 1>, SDTCisPtrTy<2>
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def SDTVecInsert : SDTypeProfile<1, 3, [ // vector insert
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SDTCisEltOfVec<2, 1>, SDTCisSameAs<0, 1>, SDTCisPtrTy<3>
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def STDPrefetch : SDTypeProfile<0, 3, [ // prefetch
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SDTCisPtrTy<0>, SDTCisSameAs<1, 2>, SDTCisInt<1>
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def STDMemBarrier : SDTypeProfile<0, 5, [ // memory barier
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SDTCisSameAs<0,1>, SDTCisSameAs<0,2>, SDTCisSameAs<0,3>, SDTCisSameAs<0,4>,
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def STDAtomic3 : SDTypeProfile<1, 3, [
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SDTCisSameAs<0,2>, SDTCisSameAs<0,3>, SDTCisInt<0>, SDTCisPtrTy<1>
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def STDAtomic2 : SDTypeProfile<1, 2, [
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SDTCisSameAs<0,2>, SDTCisInt<0>, SDTCisPtrTy<1>
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def SDTConvertOp : SDTypeProfile<1, 5, [ //cvtss, su, us, uu, ff, fs, fu, sf, su
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SDTCisVT<2, OtherVT>, SDTCisVT<3, OtherVT>, SDTCisPtrTy<4>, SDTCisPtrTy<5>
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class SDCallSeqStart<list<SDTypeConstraint> constraints> :
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SDTypeProfile<0, 1, constraints>;
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class SDCallSeqEnd<list<SDTypeConstraint> constraints> :
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SDTypeProfile<0, 2, constraints>;
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//===----------------------------------------------------------------------===//
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// Selection DAG Node Properties.
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// Note: These are hard coded into tblgen.
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class SDNodeProperty;
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def SDNPCommutative : SDNodeProperty; // X op Y == Y op X
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def SDNPAssociative : SDNodeProperty; // (X op Y) op Z == X op (Y op Z)
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def SDNPHasChain : SDNodeProperty; // R/W chain operand and result
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def SDNPOutFlag : SDNodeProperty; // Write a flag result
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def SDNPInFlag : SDNodeProperty; // Read a flag operand
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def SDNPOptInFlag : SDNodeProperty; // Optionally read a flag operand
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def SDNPMayStore : SDNodeProperty; // May write to memory, sets 'mayStore'.
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def SDNPMayLoad : SDNodeProperty; // May read memory, sets 'mayLoad'.
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def SDNPSideEffect : SDNodeProperty; // Sets 'HasUnmodelledSideEffects'.
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def SDNPMemOperand : SDNodeProperty; // Touches memory, has assoc MemOperand
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//===----------------------------------------------------------------------===//
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// Selection DAG Node definitions.
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class SDNode<string opcode, SDTypeProfile typeprof,
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list<SDNodeProperty> props = [], string sdclass = "SDNode"> {
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string Opcode = opcode;
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string SDClass = sdclass;
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list<SDNodeProperty> Properties = props;
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SDTypeProfile TypeProfile = typeprof;
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// Special TableGen-recognized dag nodes
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def imm : SDNode<"ISD::Constant" , SDTIntLeaf , [], "ConstantSDNode">;
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def timm : SDNode<"ISD::TargetConstant",SDTIntLeaf, [], "ConstantSDNode">;
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def fpimm : SDNode<"ISD::ConstantFP", SDTFPLeaf , [], "ConstantFPSDNode">;
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def vt : SDNode<"ISD::VALUETYPE" , SDTOther , [], "VTSDNode">;
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def bb : SDNode<"ISD::BasicBlock", SDTOther , [], "BasicBlockSDNode">;
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def cond : SDNode<"ISD::CONDCODE" , SDTOther , [], "CondCodeSDNode">;
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def undef : SDNode<"ISD::UNDEF" , SDTUNDEF , []>;
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def globaladdr : SDNode<"ISD::GlobalAddress", SDTPtrLeaf, [],
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"GlobalAddressSDNode">;
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def tglobaladdr : SDNode<"ISD::TargetGlobalAddress", SDTPtrLeaf, [],
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"GlobalAddressSDNode">;
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def globaltlsaddr : SDNode<"ISD::GlobalTLSAddress", SDTPtrLeaf, [],
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"GlobalAddressSDNode">;
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def tglobaltlsaddr : SDNode<"ISD::TargetGlobalTLSAddress", SDTPtrLeaf, [],
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"GlobalAddressSDNode">;
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def constpool : SDNode<"ISD::ConstantPool", SDTPtrLeaf, [],
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"ConstantPoolSDNode">;
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def tconstpool : SDNode<"ISD::TargetConstantPool", SDTPtrLeaf, [],
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"ConstantPoolSDNode">;
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def jumptable : SDNode<"ISD::JumpTable", SDTPtrLeaf, [],
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def tjumptable : SDNode<"ISD::TargetJumpTable", SDTPtrLeaf, [],
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def frameindex : SDNode<"ISD::FrameIndex", SDTPtrLeaf, [],
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def tframeindex : SDNode<"ISD::TargetFrameIndex", SDTPtrLeaf, [],
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def externalsym : SDNode<"ISD::ExternalSymbol", SDTPtrLeaf, [],
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"ExternalSymbolSDNode">;
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def texternalsym: SDNode<"ISD::TargetExternalSymbol", SDTPtrLeaf, [],
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"ExternalSymbolSDNode">;
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def blockaddress : SDNode<"ISD::BlockAddress", SDTPtrLeaf, [],
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"BlockAddressSDNode">;
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def tblockaddress: SDNode<"ISD::TargetBlockAddress", SDTPtrLeaf, [],
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"BlockAddressSDNode">;
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def add : SDNode<"ISD::ADD" , SDTIntBinOp ,
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[SDNPCommutative, SDNPAssociative]>;
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def sub : SDNode<"ISD::SUB" , SDTIntBinOp>;
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def mul : SDNode<"ISD::MUL" , SDTIntBinOp,
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[SDNPCommutative, SDNPAssociative]>;
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def mulhs : SDNode<"ISD::MULHS" , SDTIntBinOp, [SDNPCommutative]>;
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def mulhu : SDNode<"ISD::MULHU" , SDTIntBinOp, [SDNPCommutative]>;
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def sdiv : SDNode<"ISD::SDIV" , SDTIntBinOp>;
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def udiv : SDNode<"ISD::UDIV" , SDTIntBinOp>;
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def srem : SDNode<"ISD::SREM" , SDTIntBinOp>;
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def urem : SDNode<"ISD::UREM" , SDTIntBinOp>;
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def srl : SDNode<"ISD::SRL" , SDTIntShiftOp>;
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def sra : SDNode<"ISD::SRA" , SDTIntShiftOp>;
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def shl : SDNode<"ISD::SHL" , SDTIntShiftOp>;
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def rotl : SDNode<"ISD::ROTL" , SDTIntShiftOp>;
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def rotr : SDNode<"ISD::ROTR" , SDTIntShiftOp>;
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def and : SDNode<"ISD::AND" , SDTIntBinOp,
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[SDNPCommutative, SDNPAssociative]>;
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def or : SDNode<"ISD::OR" , SDTIntBinOp,
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[SDNPCommutative, SDNPAssociative]>;
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def xor : SDNode<"ISD::XOR" , SDTIntBinOp,
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[SDNPCommutative, SDNPAssociative]>;
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def addc : SDNode<"ISD::ADDC" , SDTIntBinOp,
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[SDNPCommutative, SDNPOutFlag]>;
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def adde : SDNode<"ISD::ADDE" , SDTIntBinOp,
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[SDNPCommutative, SDNPOutFlag, SDNPInFlag]>;
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def subc : SDNode<"ISD::SUBC" , SDTIntBinOp,
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def sube : SDNode<"ISD::SUBE" , SDTIntBinOp,
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[SDNPOutFlag, SDNPInFlag]>;
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def sext_inreg : SDNode<"ISD::SIGN_EXTEND_INREG", SDTExtInreg>;
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def bswap : SDNode<"ISD::BSWAP" , SDTIntUnaryOp>;
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def ctlz : SDNode<"ISD::CTLZ" , SDTIntUnaryOp>;
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def cttz : SDNode<"ISD::CTTZ" , SDTIntUnaryOp>;
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def ctpop : SDNode<"ISD::CTPOP" , SDTIntUnaryOp>;
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def sext : SDNode<"ISD::SIGN_EXTEND", SDTIntExtendOp>;
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def zext : SDNode<"ISD::ZERO_EXTEND", SDTIntExtendOp>;
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def anyext : SDNode<"ISD::ANY_EXTEND" , SDTIntExtendOp>;
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def trunc : SDNode<"ISD::TRUNCATE" , SDTIntTruncOp>;
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def bitconvert : SDNode<"ISD::BIT_CONVERT", SDTUnaryOp>;
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def extractelt : SDNode<"ISD::EXTRACT_VECTOR_ELT", SDTVecExtract>;
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def insertelt : SDNode<"ISD::INSERT_VECTOR_ELT", SDTVecInsert>;
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def fadd : SDNode<"ISD::FADD" , SDTFPBinOp, [SDNPCommutative]>;
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def fsub : SDNode<"ISD::FSUB" , SDTFPBinOp>;
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def fmul : SDNode<"ISD::FMUL" , SDTFPBinOp, [SDNPCommutative]>;
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def fdiv : SDNode<"ISD::FDIV" , SDTFPBinOp>;
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def frem : SDNode<"ISD::FREM" , SDTFPBinOp>;
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def fabs : SDNode<"ISD::FABS" , SDTFPUnaryOp>;
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def fneg : SDNode<"ISD::FNEG" , SDTFPUnaryOp>;
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def fsqrt : SDNode<"ISD::FSQRT" , SDTFPUnaryOp>;
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def fsin : SDNode<"ISD::FSIN" , SDTFPUnaryOp>;
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def fcos : SDNode<"ISD::FCOS" , SDTFPUnaryOp>;
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def fexp2 : SDNode<"ISD::FEXP2" , SDTFPUnaryOp>;
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def flog2 : SDNode<"ISD::FLOG2" , SDTFPUnaryOp>;
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def frint : SDNode<"ISD::FRINT" , SDTFPUnaryOp>;
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def ftrunc : SDNode<"ISD::FTRUNC" , SDTFPUnaryOp>;
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def fceil : SDNode<"ISD::FCEIL" , SDTFPUnaryOp>;
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def ffloor : SDNode<"ISD::FFLOOR" , SDTFPUnaryOp>;
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def fnearbyint : SDNode<"ISD::FNEARBYINT" , SDTFPUnaryOp>;
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def fround : SDNode<"ISD::FP_ROUND" , SDTFPRoundOp>;
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def fextend : SDNode<"ISD::FP_EXTEND" , SDTFPExtendOp>;
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def fcopysign : SDNode<"ISD::FCOPYSIGN" , SDTFPSignOp>;
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def sint_to_fp : SDNode<"ISD::SINT_TO_FP" , SDTIntToFPOp>;
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def uint_to_fp : SDNode<"ISD::UINT_TO_FP" , SDTIntToFPOp>;
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def fp_to_sint : SDNode<"ISD::FP_TO_SINT" , SDTFPToIntOp>;
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def fp_to_uint : SDNode<"ISD::FP_TO_UINT" , SDTFPToIntOp>;
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def setcc : SDNode<"ISD::SETCC" , SDTSetCC>;
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def select : SDNode<"ISD::SELECT" , SDTSelect>;
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def selectcc : SDNode<"ISD::SELECT_CC" , SDTSelectCC>;
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def vsetcc : SDNode<"ISD::VSETCC" , SDTSetCC>;
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def brcond : SDNode<"ISD::BRCOND" , SDTBrcond, [SDNPHasChain]>;
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def brind : SDNode<"ISD::BRIND" , SDTBrind, [SDNPHasChain]>;
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def br : SDNode<"ISD::BR" , SDTBr, [SDNPHasChain]>;
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def trap : SDNode<"ISD::TRAP" , SDTNone,
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[SDNPHasChain, SDNPSideEffect]>;
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def prefetch : SDNode<"ISD::PREFETCH" , STDPrefetch,
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[SDNPHasChain, SDNPMayLoad, SDNPMayStore]>;
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def membarrier : SDNode<"ISD::MEMBARRIER" , STDMemBarrier,
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[SDNPHasChain, SDNPSideEffect]>;
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def atomic_cmp_swap : SDNode<"ISD::ATOMIC_CMP_SWAP" , STDAtomic3,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_add : SDNode<"ISD::ATOMIC_LOAD_ADD" , STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_swap : SDNode<"ISD::ATOMIC_SWAP", STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_sub : SDNode<"ISD::ATOMIC_LOAD_SUB" , STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_and : SDNode<"ISD::ATOMIC_LOAD_AND" , STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_or : SDNode<"ISD::ATOMIC_LOAD_OR" , STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_xor : SDNode<"ISD::ATOMIC_LOAD_XOR" , STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_nand: SDNode<"ISD::ATOMIC_LOAD_NAND", STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_min : SDNode<"ISD::ATOMIC_LOAD_MIN", STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_max : SDNode<"ISD::ATOMIC_LOAD_MAX", STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_umin : SDNode<"ISD::ATOMIC_LOAD_UMIN", STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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def atomic_load_umax : SDNode<"ISD::ATOMIC_LOAD_UMAX", STDAtomic2,
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[SDNPHasChain, SDNPMayStore, SDNPMayLoad, SDNPMemOperand]>;
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// Do not use ld, st directly. Use load, extload, sextload, zextload, store,
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// and truncst (see below).
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def ld : SDNode<"ISD::LOAD" , SDTLoad,
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[SDNPHasChain, SDNPMayLoad, SDNPMemOperand]>;
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def st : SDNode<"ISD::STORE" , SDTStore,
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[SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
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def ist : SDNode<"ISD::STORE" , SDTIStore,
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[SDNPHasChain, SDNPMayStore, SDNPMemOperand]>;
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def vector_shuffle : SDNode<"ISD::VECTOR_SHUFFLE", SDTVecShuffle, []>;
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def build_vector : SDNode<"ISD::BUILD_VECTOR", SDTypeProfile<1, -1, []>, []>;
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def scalar_to_vector : SDNode<"ISD::SCALAR_TO_VECTOR", SDTypeProfile<1, 1, []>,
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def vector_extract : SDNode<"ISD::EXTRACT_VECTOR_ELT",
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SDTypeProfile<1, 2, [SDTCisPtrTy<2>]>, []>;
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def vector_insert : SDNode<"ISD::INSERT_VECTOR_ELT",
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SDTypeProfile<1, 3, [SDTCisSameAs<0, 1>, SDTCisPtrTy<3>]>, []>;
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// Nodes for intrinsics, you should use the intrinsic itself and let tblgen use
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// these internally. Don't reference these directly.
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def intrinsic_void : SDNode<"ISD::INTRINSIC_VOID",
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SDTypeProfile<0, -1, [SDTCisPtrTy<0>]>,
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def intrinsic_w_chain : SDNode<"ISD::INTRINSIC_W_CHAIN",
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SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>,
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def intrinsic_wo_chain : SDNode<"ISD::INTRINSIC_WO_CHAIN",
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SDTypeProfile<1, -1, [SDTCisPtrTy<1>]>, []>;
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// Do not use cvt directly. Use cvt forms below
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def cvt : SDNode<"ISD::CONVERT_RNDSAT", SDTConvertOp>;
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//===----------------------------------------------------------------------===//
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// Selection DAG Condition Codes
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class CondCode; // ISD::CondCode enums
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def SETOEQ : CondCode; def SETOGT : CondCode;
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def SETOGE : CondCode; def SETOLT : CondCode; def SETOLE : CondCode;
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def SETONE : CondCode; def SETO : CondCode; def SETUO : CondCode;
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def SETUEQ : CondCode; def SETUGT : CondCode; def SETUGE : CondCode;
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def SETULT : CondCode; def SETULE : CondCode; def SETUNE : CondCode;
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def SETEQ : CondCode; def SETGT : CondCode; def SETGE : CondCode;
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def SETLT : CondCode; def SETLE : CondCode; def SETNE : CondCode;
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//===----------------------------------------------------------------------===//
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// Selection DAG Node Transformation Functions.
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// This mechanism allows targets to manipulate nodes in the output DAG once a
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// match has been formed. This is typically used to manipulate immediate
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class SDNodeXForm<SDNode opc, code xformFunction> {
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code XFormFunction = xformFunction;
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def NOOP_SDNodeXForm : SDNodeXForm<imm, [{}]>;
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//===----------------------------------------------------------------------===//
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// Selection DAG Pattern Fragments.
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// Pattern fragments are reusable chunks of dags that match specific things.
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// They can take arguments and have C++ predicates that control whether they
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// match. They are intended to make the patterns for common instructions more
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// compact and readable.
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/// PatFrag - Represents a pattern fragment. This can match something on the
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/// DAG, frame a single node to multiply nested other fragments.
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class PatFrag<dag ops, dag frag, code pred = [{}],
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SDNodeXForm xform = NOOP_SDNodeXForm> {
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code Predicate = pred;
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SDNodeXForm OperandTransform = xform;
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// PatLeaf's are pattern fragments that have no operands. This is just a helper
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// to define immediates and other common things concisely.
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class PatLeaf<dag frag, code pred = [{}], SDNodeXForm xform = NOOP_SDNodeXForm>
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: PatFrag<(ops), frag, pred, xform>;
479
def vtInt : PatLeaf<(vt), [{ return N->getVT().isInteger(); }]>;
480
def vtFP : PatLeaf<(vt), [{ return N->getVT().isFloatingPoint(); }]>;
482
def immAllOnesV: PatLeaf<(build_vector), [{
483
return ISD::isBuildVectorAllOnes(N);
485
def immAllOnesV_bc: PatLeaf<(bitconvert), [{
486
return ISD::isBuildVectorAllOnes(N);
488
def immAllZerosV: PatLeaf<(build_vector), [{
489
return ISD::isBuildVectorAllZeros(N);
491
def immAllZerosV_bc: PatLeaf<(bitconvert), [{
492
return ISD::isBuildVectorAllZeros(N);
497
// Other helper fragments.
498
def not : PatFrag<(ops node:$in), (xor node:$in, -1)>;
499
def vnot : PatFrag<(ops node:$in), (xor node:$in, immAllOnesV)>;
500
def vnot_conv : PatFrag<(ops node:$in), (xor node:$in, immAllOnesV_bc)>;
501
def ineg : PatFrag<(ops node:$in), (sub 0, node:$in)>;
504
def unindexedload : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
505
return cast<LoadSDNode>(N)->getAddressingMode() == ISD::UNINDEXED;
507
def load : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
508
return cast<LoadSDNode>(N)->getExtensionType() == ISD::NON_EXTLOAD;
511
// extending load fragments.
512
def extload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
513
return cast<LoadSDNode>(N)->getExtensionType() == ISD::EXTLOAD;
515
def sextload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
516
return cast<LoadSDNode>(N)->getExtensionType() == ISD::SEXTLOAD;
518
def zextload : PatFrag<(ops node:$ptr), (unindexedload node:$ptr), [{
519
return cast<LoadSDNode>(N)->getExtensionType() == ISD::ZEXTLOAD;
522
def extloadi1 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
523
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i1;
525
def extloadi8 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
526
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
528
def extloadi16 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
529
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
531
def extloadi32 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
532
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
534
def extloadf32 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
535
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::f32;
537
def extloadf64 : PatFrag<(ops node:$ptr), (extload node:$ptr), [{
538
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::f64;
541
def sextloadi1 : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
542
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i1;
544
def sextloadi8 : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
545
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
547
def sextloadi16 : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
548
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
550
def sextloadi32 : PatFrag<(ops node:$ptr), (sextload node:$ptr), [{
551
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
554
def zextloadi1 : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
555
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i1;
557
def zextloadi8 : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
558
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i8;
560
def zextloadi16 : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
561
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i16;
563
def zextloadi32 : PatFrag<(ops node:$ptr), (zextload node:$ptr), [{
564
return cast<LoadSDNode>(N)->getMemoryVT() == MVT::i32;
568
def unindexedstore : PatFrag<(ops node:$val, node:$ptr),
569
(st node:$val, node:$ptr), [{
570
return cast<StoreSDNode>(N)->getAddressingMode() == ISD::UNINDEXED;
572
def store : PatFrag<(ops node:$val, node:$ptr),
573
(unindexedstore node:$val, node:$ptr), [{
574
return !cast<StoreSDNode>(N)->isTruncatingStore();
577
// truncstore fragments.
578
def truncstore : PatFrag<(ops node:$val, node:$ptr),
579
(unindexedstore node:$val, node:$ptr), [{
580
return cast<StoreSDNode>(N)->isTruncatingStore();
582
def truncstorei8 : PatFrag<(ops node:$val, node:$ptr),
583
(truncstore node:$val, node:$ptr), [{
584
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i8;
586
def truncstorei16 : PatFrag<(ops node:$val, node:$ptr),
587
(truncstore node:$val, node:$ptr), [{
588
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i16;
590
def truncstorei32 : PatFrag<(ops node:$val, node:$ptr),
591
(truncstore node:$val, node:$ptr), [{
592
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i32;
594
def truncstoref32 : PatFrag<(ops node:$val, node:$ptr),
595
(truncstore node:$val, node:$ptr), [{
596
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::f32;
598
def truncstoref64 : PatFrag<(ops node:$val, node:$ptr),
599
(truncstore node:$val, node:$ptr), [{
600
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::f64;
603
// indexed store fragments.
604
def istore : PatFrag<(ops node:$val, node:$base, node:$offset),
605
(ist node:$val, node:$base, node:$offset), [{
606
return !cast<StoreSDNode>(N)->isTruncatingStore();
609
def pre_store : PatFrag<(ops node:$val, node:$base, node:$offset),
610
(istore node:$val, node:$base, node:$offset), [{
611
ISD::MemIndexedMode AM = cast<StoreSDNode>(N)->getAddressingMode();
612
return AM == ISD::PRE_INC || AM == ISD::PRE_DEC;
615
def itruncstore : PatFrag<(ops node:$val, node:$base, node:$offset),
616
(ist node:$val, node:$base, node:$offset), [{
617
return cast<StoreSDNode>(N)->isTruncatingStore();
619
def pre_truncst : PatFrag<(ops node:$val, node:$base, node:$offset),
620
(itruncstore node:$val, node:$base, node:$offset), [{
621
ISD::MemIndexedMode AM = cast<StoreSDNode>(N)->getAddressingMode();
622
return AM == ISD::PRE_INC || AM == ISD::PRE_DEC;
624
def pre_truncsti1 : PatFrag<(ops node:$val, node:$base, node:$offset),
625
(pre_truncst node:$val, node:$base, node:$offset), [{
626
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i1;
628
def pre_truncsti8 : PatFrag<(ops node:$val, node:$base, node:$offset),
629
(pre_truncst node:$val, node:$base, node:$offset), [{
630
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i8;
632
def pre_truncsti16 : PatFrag<(ops node:$val, node:$base, node:$offset),
633
(pre_truncst node:$val, node:$base, node:$offset), [{
634
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i16;
636
def pre_truncsti32 : PatFrag<(ops node:$val, node:$base, node:$offset),
637
(pre_truncst node:$val, node:$base, node:$offset), [{
638
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i32;
640
def pre_truncstf32 : PatFrag<(ops node:$val, node:$base, node:$offset),
641
(pre_truncst node:$val, node:$base, node:$offset), [{
642
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::f32;
645
def post_store : PatFrag<(ops node:$val, node:$ptr, node:$offset),
646
(istore node:$val, node:$ptr, node:$offset), [{
647
ISD::MemIndexedMode AM = cast<StoreSDNode>(N)->getAddressingMode();
648
return AM == ISD::POST_INC || AM == ISD::POST_DEC;
651
def post_truncst : PatFrag<(ops node:$val, node:$base, node:$offset),
652
(itruncstore node:$val, node:$base, node:$offset), [{
653
ISD::MemIndexedMode AM = cast<StoreSDNode>(N)->getAddressingMode();
654
return AM == ISD::POST_INC || AM == ISD::POST_DEC;
656
def post_truncsti1 : PatFrag<(ops node:$val, node:$base, node:$offset),
657
(post_truncst node:$val, node:$base, node:$offset), [{
658
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i1;
660
def post_truncsti8 : PatFrag<(ops node:$val, node:$base, node:$offset),
661
(post_truncst node:$val, node:$base, node:$offset), [{
662
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i8;
664
def post_truncsti16 : PatFrag<(ops node:$val, node:$base, node:$offset),
665
(post_truncst node:$val, node:$base, node:$offset), [{
666
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i16;
668
def post_truncsti32 : PatFrag<(ops node:$val, node:$base, node:$offset),
669
(post_truncst node:$val, node:$base, node:$offset), [{
670
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::i32;
672
def post_truncstf32 : PatFrag<(ops node:$val, node:$base, node:$offset),
673
(post_truncst node:$val, node:$base, node:$offset), [{
674
return cast<StoreSDNode>(N)->getMemoryVT() == MVT::f32;
677
// setcc convenience fragments.
678
def setoeq : PatFrag<(ops node:$lhs, node:$rhs),
679
(setcc node:$lhs, node:$rhs, SETOEQ)>;
680
def setogt : PatFrag<(ops node:$lhs, node:$rhs),
681
(setcc node:$lhs, node:$rhs, SETOGT)>;
682
def setoge : PatFrag<(ops node:$lhs, node:$rhs),
683
(setcc node:$lhs, node:$rhs, SETOGE)>;
684
def setolt : PatFrag<(ops node:$lhs, node:$rhs),
685
(setcc node:$lhs, node:$rhs, SETOLT)>;
686
def setole : PatFrag<(ops node:$lhs, node:$rhs),
687
(setcc node:$lhs, node:$rhs, SETOLE)>;
688
def setone : PatFrag<(ops node:$lhs, node:$rhs),
689
(setcc node:$lhs, node:$rhs, SETONE)>;
690
def seto : PatFrag<(ops node:$lhs, node:$rhs),
691
(setcc node:$lhs, node:$rhs, SETO)>;
692
def setuo : PatFrag<(ops node:$lhs, node:$rhs),
693
(setcc node:$lhs, node:$rhs, SETUO)>;
694
def setueq : PatFrag<(ops node:$lhs, node:$rhs),
695
(setcc node:$lhs, node:$rhs, SETUEQ)>;
696
def setugt : PatFrag<(ops node:$lhs, node:$rhs),
697
(setcc node:$lhs, node:$rhs, SETUGT)>;
698
def setuge : PatFrag<(ops node:$lhs, node:$rhs),
699
(setcc node:$lhs, node:$rhs, SETUGE)>;
700
def setult : PatFrag<(ops node:$lhs, node:$rhs),
701
(setcc node:$lhs, node:$rhs, SETULT)>;
702
def setule : PatFrag<(ops node:$lhs, node:$rhs),
703
(setcc node:$lhs, node:$rhs, SETULE)>;
704
def setune : PatFrag<(ops node:$lhs, node:$rhs),
705
(setcc node:$lhs, node:$rhs, SETUNE)>;
706
def seteq : PatFrag<(ops node:$lhs, node:$rhs),
707
(setcc node:$lhs, node:$rhs, SETEQ)>;
708
def setgt : PatFrag<(ops node:$lhs, node:$rhs),
709
(setcc node:$lhs, node:$rhs, SETGT)>;
710
def setge : PatFrag<(ops node:$lhs, node:$rhs),
711
(setcc node:$lhs, node:$rhs, SETGE)>;
712
def setlt : PatFrag<(ops node:$lhs, node:$rhs),
713
(setcc node:$lhs, node:$rhs, SETLT)>;
714
def setle : PatFrag<(ops node:$lhs, node:$rhs),
715
(setcc node:$lhs, node:$rhs, SETLE)>;
716
def setne : PatFrag<(ops node:$lhs, node:$rhs),
717
(setcc node:$lhs, node:$rhs, SETNE)>;
719
def atomic_cmp_swap_8 :
720
PatFrag<(ops node:$ptr, node:$cmp, node:$swap),
721
(atomic_cmp_swap node:$ptr, node:$cmp, node:$swap), [{
722
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i8;
724
def atomic_cmp_swap_16 :
725
PatFrag<(ops node:$ptr, node:$cmp, node:$swap),
726
(atomic_cmp_swap node:$ptr, node:$cmp, node:$swap), [{
727
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i16;
729
def atomic_cmp_swap_32 :
730
PatFrag<(ops node:$ptr, node:$cmp, node:$swap),
731
(atomic_cmp_swap node:$ptr, node:$cmp, node:$swap), [{
732
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i32;
734
def atomic_cmp_swap_64 :
735
PatFrag<(ops node:$ptr, node:$cmp, node:$swap),
736
(atomic_cmp_swap node:$ptr, node:$cmp, node:$swap), [{
737
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i64;
740
multiclass binary_atomic_op<SDNode atomic_op> {
741
def _8 : PatFrag<(ops node:$ptr, node:$val),
742
(atomic_op node:$ptr, node:$val), [{
743
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i8;
745
def _16 : PatFrag<(ops node:$ptr, node:$val),
746
(atomic_op node:$ptr, node:$val), [{
747
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i16;
749
def _32 : PatFrag<(ops node:$ptr, node:$val),
750
(atomic_op node:$ptr, node:$val), [{
751
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i32;
753
def _64 : PatFrag<(ops node:$ptr, node:$val),
754
(atomic_op node:$ptr, node:$val), [{
755
return cast<AtomicSDNode>(N)->getMemoryVT() == MVT::i64;
759
defm atomic_load_add : binary_atomic_op<atomic_load_add>;
760
defm atomic_swap : binary_atomic_op<atomic_swap>;
761
defm atomic_load_sub : binary_atomic_op<atomic_load_sub>;
762
defm atomic_load_and : binary_atomic_op<atomic_load_and>;
763
defm atomic_load_or : binary_atomic_op<atomic_load_or>;
764
defm atomic_load_xor : binary_atomic_op<atomic_load_xor>;
765
defm atomic_load_nand : binary_atomic_op<atomic_load_nand>;
766
defm atomic_load_min : binary_atomic_op<atomic_load_min>;
767
defm atomic_load_max : binary_atomic_op<atomic_load_max>;
768
defm atomic_load_umin : binary_atomic_op<atomic_load_umin>;
769
defm atomic_load_umax : binary_atomic_op<atomic_load_umax>;
771
//===----------------------------------------------------------------------===//
772
// Selection DAG CONVERT_RNDSAT patterns
774
def cvtff : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
775
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
776
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_FF;
779
def cvtss : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
780
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
781
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_SS;
784
def cvtsu : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
785
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
786
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_SU;
789
def cvtus : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
790
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
791
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_US;
794
def cvtuu : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
795
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
796
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_UU;
799
def cvtsf : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
800
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
801
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_SF;
804
def cvtuf : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
805
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
806
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_UF;
809
def cvtfs : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
810
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
811
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_FS;
814
def cvtfu : PatFrag<(ops node:$val, node:$dty, node:$sty, node:$rd, node:$sat),
815
(cvt node:$val, node:$dty, node:$sty, node:$rd, node:$sat), [{
816
return cast<CvtRndSatSDNode>(N)->getCvtCode() == ISD::CVT_FU;
819
//===----------------------------------------------------------------------===//
820
// Selection DAG Pattern Support.
822
// Patterns are what are actually matched against the target-flavored
823
// instruction selection DAG. Instructions defined by the target implicitly
824
// define patterns in most cases, but patterns can also be explicitly added when
825
// an operation is defined by a sequence of instructions (e.g. loading a large
826
// immediate value on RISC targets that do not support immediates as large as
830
class Pattern<dag patternToMatch, list<dag> resultInstrs> {
831
dag PatternToMatch = patternToMatch;
832
list<dag> ResultInstrs = resultInstrs;
833
list<Predicate> Predicates = []; // See class Instruction in Target.td.
834
int AddedComplexity = 0; // See class Instruction in Target.td.
837
// Pat - A simple (but common) form of a pattern, which produces a simple result
838
// not needing a full list.
839
class Pat<dag pattern, dag result> : Pattern<pattern, [result]>;
841
//===----------------------------------------------------------------------===//
842
// Complex pattern definitions.
845
// Complex patterns, e.g. X86 addressing mode, requires pattern matching code
846
// in C++. NumOperands is the number of operands returned by the select function;
847
// SelectFunc is the name of the function used to pattern match the max. pattern;
848
// RootNodes are the list of possible root nodes of the sub-dags to match.
849
// e.g. X86 addressing mode - def addr : ComplexPattern<4, "SelectAddr", [add]>;
851
class ComplexPattern<ValueType ty, int numops, string fn,
852
list<SDNode> roots = [], list<SDNodeProperty> props = []> {
854
int NumOperands = numops;
855
string SelectFunc = fn;
856
list<SDNode> RootNodes = roots;
857
list<SDNodeProperty> Properties = props;