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llvm-mirror/lib/Target/TargetSelectionDAG.td
Dan Gohman 00823cb0d4 Teach the DAGISelEmitter to not compute the variable_ops operand 
index for the input pattern in terms of the output pattern. Instead
keep track of how many fixed operands the input pattern actually
has, and have the input matching code pass the output-emitting
function that index value. This simplifies the code, disentangles
variables_ops from the support for predication operations, and
makes variable_ops more robust.

llvm-svn: 51808
2008-05-31 02:11:25 +00:00

938 lines
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TableGen
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//===- TargetSelectionDAG.td - Common code for DAG isels ---*- tablegen -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file 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
/// 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;
}
/// SDTCisEltOfVec - This indicates that ThisOp is a scalar type of the same
/// type as the element type of OtherOp, which is a vector type.
class SDTCisEltOfVec<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 SDTNone : SDTypeProfile<0, 0, []>; // ret, trap
def SDTLoad : SDTypeProfile<1, 1, [ // load
SDTCisPtrTy<1>
]>;
def SDTStore : SDTypeProfile<0, 2, [ // store
SDTCisPtrTy<1>
]>;
def SDTIStore : SDTypeProfile<1, 3, [ // indexed store
SDTCisSameAs<0, 2>, SDTCisPtrTy<0>, SDTCisPtrTy<3>
]>;
def SDTVecShuffle : SDTypeProfile<1, 3, [
SDTCisSameAs<0, 1>, SDTCisSameAs<1, 2>, SDTCisIntVectorOfSameSize<3, 0>
]>;
def SDTVecExtract : SDTypeProfile<1, 2, [ // vector extract
SDTCisEltOfVec<0, 1>, SDTCisPtrTy<2>
]>;
def SDTVecInsert : SDTypeProfile<1, 3, [ // vector insert
SDTCisEltOfVec<2, 1>, SDTCisSameAs<0, 1>, SDTCisPtrTy<3>
]>;
def STDPrefetch : SDTypeProfile<0, 3, [ // prefetch
SDTCisPtrTy<0>, SDTCisSameAs<1, 2>, SDTCisInt<1>
]>;
def STDMemBarrier : SDTypeProfile<0, 5, [ // memory barier
SDTCisSameAs<0,1>, SDTCisSameAs<0,2>, SDTCisSameAs<0,3>, SDTCisSameAs<0,4>,
SDTCisInt<0>
]>;
def STDAtomic3 : SDTypeProfile<1, 3, [
SDTCisSameAs<0,2>, SDTCisSameAs<0,3>, SDTCisInt<0>, SDTCisPtrTy<1>
]>;
def STDAtomic2 : SDTypeProfile<1, 2, [
SDTCisSameAs<0,2>, SDTCisInt<0>, SDTCisPtrTy<1>
]>;
class SDCallSeqStart<list<SDTypeConstraint> constraints> :
SDTypeProfile<0, 1, constraints>;
class SDCallSeqEnd<list<SDTypeConstraint> constraints> :
SDTypeProfile<0, 2, constraints>;
//===----------------------------------------------------------------------===//
// 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
def SDNPMayStore : SDNodeProperty; // May write to memory, sets 'mayStore'.
def SDNPMayLoad : SDNodeProperty; // May read memory, sets 'mayLoad'.
def SDNPSideEffect : SDNodeProperty; // Sets 'HasUnmodelledSideEffects'.
//===----------------------------------------------------------------------===//
// 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 implicit;
def parallel;
def node;
def srcvalue;
def imm : SDNode<"ISD::Constant" , SDTIntLeaf , [], "ConstantSDNode">;
def fpimm : SDNode<"ISD::ConstantFP", 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 globaltlsaddr : SDNode<"ISD::GlobalTLSAddress", SDTPtrLeaf, [],
"GlobalAddressSDNode">;
def tglobaltlsaddr : SDNode<"ISD::TargetGlobalTLSAddress", 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 extractelt : SDNode<"ISD::EXTRACT_VECTOR_ELT", SDTVecExtract>;
def insertelt : SDNode<"ISD::INSERT_VECTOR_ELT", SDTVecInsert>;
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 vsetcc : SDNode<"ISD::VSETCC" , SDTSetCC>;
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" , SDTNone, [SDNPHasChain]>;
def trap : SDNode<"ISD::TRAP" , SDTNone,
[SDNPHasChain, SDNPSideEffect]>;
def prefetch : SDNode<"ISD::PREFETCH" , STDPrefetch,
[SDNPHasChain, SDNPMayLoad, SDNPMayStore]>;
def membarrier : SDNode<"ISD::MEMBARRIER" , STDMemBarrier,
[SDNPHasChain, SDNPSideEffect]>;
// Do not use atomic_* directly, use atomic_*_size (see below)
def atomic_lcs : SDNode<"ISD::ATOMIC_LCS" , STDAtomic3,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_las : SDNode<"ISD::ATOMIC_LAS" , STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_swap : SDNode<"ISD::ATOMIC_SWAP", STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_lss : SDNode<"ISD::ATOMIC_LSS" , STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_load_and : SDNode<"ISD::ATOMIC_LOAD_AND" , STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_load_or : SDNode<"ISD::ATOMIC_LOAD_OR" , STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_load_xor : SDNode<"ISD::ATOMIC_LOAD_XOR" , STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_load_min : SDNode<"ISD::ATOMIC_LOAD_MIN", STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_load_max : SDNode<"ISD::ATOMIC_LOAD_MAX", STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_load_umin : SDNode<"ISD::ATOMIC_LOAD_UMIN", STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
def atomic_load_umax : SDNode<"ISD::ATOMIC_LOAD_UMAX", STDAtomic2,
[SDNPHasChain, SDNPMayStore, SDNPMayLoad]>;
// Do not use ld, st directly. Use load, extload, sextload, zextload, store,
// and truncst (see below).
def ld : SDNode<"ISD::LOAD" , SDTLoad,
[SDNPHasChain, SDNPMayLoad]>;
def st : SDNode<"ISD::STORE" , SDTStore,
[SDNPHasChain, SDNPMayStore]>;
def ist : SDNode<"ISD::STORE" , SDTIStore,
[SDNPHasChain, SDNPMayStore]>;
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, [SDTCisPtrTy<2>]>, []>;
def vector_insert : SDNode<"ISD::INSERT_VECTOR_ELT",
SDTypeProfile<1, 3, [SDTCisSameAs<0, 1>, SDTCisPtrTy<3>]>, []>;
def extract_subreg : SDNode<"ISD::EXTRACT_SUBREG",
SDTypeProfile<1, 2, []>>;
def insert_subreg : SDNode<"ISD::INSERT_SUBREG",
SDTypeProfile<1, 3, []>>;
// 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 immAllOnesV_bc: PatLeaf<(bitconvert), [{
return ISD::isBuildVectorAllOnes(N);
}]>;
def immAllZerosV: PatLeaf<(build_vector), [{
return ISD::isBuildVectorAllZeros(N);
}]>;
def immAllZerosV_bc: PatLeaf<(bitconvert), [{
return ISD::isBuildVectorAllZeros(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)>;
// load fragments.
def load : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::NON_EXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED;
return false;
}]>;
// extending load fragments.
def extloadi1 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::EXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i1;
return false;
}]>;
def extloadi8 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::EXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i8;
return false;
}]>;
def extloadi16 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::EXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i16;
return false;
}]>;
def extloadi32 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::EXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i32;
return false;
}]>;
def extloadf32 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::EXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::f32;
return false;
}]>;
def extloadf64 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::EXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::f64;
return false;
}]>;
def sextloadi1 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::SEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i1;
return false;
}]>;
def sextloadi8 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::SEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i8;
return false;
}]>;
def sextloadi16 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::SEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i16;
return false;
}]>;
def sextloadi32 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::SEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i32;
return false;
}]>;
def zextloadi1 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::ZEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i1;
return false;
}]>;
def zextloadi8 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::ZEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i8;
return false;
}]>;
def zextloadi16 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::ZEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i16;
return false;
}]>;
def zextloadi32 : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
if (LoadSDNode *LD = dyn_cast<LoadSDNode>(N))
return LD->getExtensionType() == ISD::ZEXTLOAD &&
LD->getAddressingMode() == ISD::UNINDEXED &&
LD->getMemoryVT() == MVT::i32;
return false;
}]>;
// store fragments.
def store : PatFrag<(ops node:$val, node:$ptr),
(st node:$val, node:$ptr), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N))
return !ST->isTruncatingStore() &&
ST->getAddressingMode() == ISD::UNINDEXED;
return false;
}]>;
// truncstore fragments.
def truncstorei8 : PatFrag<(ops node:$val, node:$ptr),
(st node:$val, node:$ptr), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N))
return ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i8 &&
ST->getAddressingMode() == ISD::UNINDEXED;
return false;
}]>;
def truncstorei16 : PatFrag<(ops node:$val, node:$ptr),
(st node:$val, node:$ptr), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N))
return ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i16 &&
ST->getAddressingMode() == ISD::UNINDEXED;
return false;
}]>;
def truncstorei32 : PatFrag<(ops node:$val, node:$ptr),
(st node:$val, node:$ptr), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N))
return ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i32 &&
ST->getAddressingMode() == ISD::UNINDEXED;
return false;
}]>;
def truncstoref32 : PatFrag<(ops node:$val, node:$ptr),
(st node:$val, node:$ptr), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N))
return ST->isTruncatingStore() && ST->getMemoryVT() == MVT::f32 &&
ST->getAddressingMode() == ISD::UNINDEXED;
return false;
}]>;
def truncstoref64 : PatFrag<(ops node:$val, node:$ptr),
(st node:$val, node:$ptr), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N))
return ST->isTruncatingStore() && ST->getMemoryVT() == MVT::f64 &&
ST->getAddressingMode() == ISD::UNINDEXED;
return false;
}]>;
// indexed store fragments.
def pre_store : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::PRE_INC || AM == ISD::PRE_DEC) &&
!ST->isTruncatingStore();
}
return false;
}]>;
def pre_truncsti1 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::PRE_INC || AM == ISD::PRE_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i1;
}
return false;
}]>;
def pre_truncsti8 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::PRE_INC || AM == ISD::PRE_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i8;
}
return false;
}]>;
def pre_truncsti16 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::PRE_INC || AM == ISD::PRE_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i16;
}
return false;
}]>;
def pre_truncsti32 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::PRE_INC || AM == ISD::PRE_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i32;
}
return false;
}]>;
def pre_truncstf32 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::PRE_INC || AM == ISD::PRE_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::f32;
}
return false;
}]>;
def post_store : PatFrag<(ops node:$val, node:$ptr, node:$offset),
(ist node:$val, node:$ptr, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return !ST->isTruncatingStore() &&
(AM == ISD::POST_INC || AM == ISD::POST_DEC);
}
return false;
}]>;
def post_truncsti1 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::POST_INC || AM == ISD::POST_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i1;
}
return false;
}]>;
def post_truncsti8 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::POST_INC || AM == ISD::POST_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i8;
}
return false;
}]>;
def post_truncsti16 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::POST_INC || AM == ISD::POST_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i16;
}
return false;
}]>;
def post_truncsti32 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::POST_INC || AM == ISD::POST_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::i32;
}
return false;
}]>;
def post_truncstf32 : PatFrag<(ops node:$val, node:$base, node:$offset),
(ist node:$val, node:$base, node:$offset), [{
if (StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ISD::MemIndexedMode AM = ST->getAddressingMode();
return (AM == ISD::POST_INC || AM == ISD::POST_DEC) &&
ST->isTruncatingStore() && ST->getMemoryVT() == MVT::f32;
}
return false;
}]>;
//Atomic patterns
def atomic_lcs_8 : PatFrag<(ops node:$ptr, node:$cmp, node:$swp),
(atomic_lcs node:$ptr, node:$cmp, node:$swp), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i8;
return false;
}]>;
def atomic_lcs_16 : PatFrag<(ops node:$ptr, node:$cmp, node:$swp),
(atomic_lcs node:$ptr, node:$cmp, node:$swp), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i16;
return false;
}]>;
def atomic_lcs_32 : PatFrag<(ops node:$ptr, node:$cmp, node:$swp),
(atomic_lcs node:$ptr, node:$cmp, node:$swp), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i32;
return false;
}]>;
def atomic_lcs_64 : PatFrag<(ops node:$ptr, node:$cmp, node:$swp),
(atomic_lcs node:$ptr, node:$cmp, node:$swp), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i64;
return false;
}]>;
def atomic_las_8 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_las node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i8;
return false;
}]>;
def atomic_las_16 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_las node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i16;
return false;
}]>;
def atomic_las_32 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_las node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i32;
return false;
}]>;
def atomic_las_64 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_las node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i64;
return false;
}]>;
def atomic_swap_8 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_swap node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i8;
return false;
}]>;
def atomic_swap_16 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_swap node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i16;
return false;
}]>;
def atomic_swap_32 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_swap node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i32;
return false;
}]>;
def atomic_swap_64 : PatFrag<(ops node:$ptr, node:$inc),
(atomic_swap node:$ptr, node:$inc), [{
if (AtomicSDNode* V = dyn_cast<AtomicSDNode>(N))
return V->getVT() == MVT::i64;
return false;
}]>;
// 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.
//
class CPAttribute;
// Pass the parent Operand as root to CP function rather
// than the root of the sub-DAG
def CPAttrParentAsRoot : CPAttribute;
// 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 = [], list<SDNodeProperty> props = [],
list<CPAttribute> attrs = []> {
ValueType Ty = ty;
int NumOperands = numops;
string SelectFunc = fn;
list<SDNode> RootNodes = roots;
list<SDNodeProperty> Properties = props;
list<CPAttribute> Attributes = attrs;
}
//===----------------------------------------------------------------------===//
// 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]>;
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