namespace llvm {
//===----------------------------------------------------------------------===//
-/// DAGTypeLegalizer - This takes an arbitrary SelectionDAG as input and
-/// hacks on it until the target machine can handle it. This involves
-/// eliminating value sizes the machine cannot handle (promoting small sizes to
-/// large sizes or splitting up large values into small values) as well as
-/// eliminating operations the machine cannot handle.
-///
-/// This code also does a small amount of optimization and recognition of idioms
-/// as part of its processing. For example, if a target does not support a
-/// 'setcc' instruction efficiently, but does support 'brcc' instruction, this
-/// will attempt merge setcc and brc instructions into brcc's.
+/// DAGTypeLegalizer - This takes an arbitrary SelectionDAG as input and hacks
+/// on it until only value types the target machine can handle are left. This
+/// involves promoting small sizes to large sizes or splitting up large values
+/// into small values.
///
class VISIBILITY_HIDDEN DAGTypeLegalizer {
TargetLowering &TLI;
SelectionDAG &DAG;
public:
- // NodeIDFlags - This pass uses the NodeID on the SDNodes to hold information
+ // NodeIdFlags - This pass uses the NodeId on the SDNodes to hold information
// about the state of the node. The enum has all the values.
- enum NodeIDFlags {
+ enum NodeIdFlags {
/// ReadyToProcess - All operands have been processed, so this node is ready
/// to be handled.
ReadyToProcess = 0,
-
+
/// NewNode - This is a new node that was created in the process of
/// legalizing some other node.
NewNode = -1,
-
+
/// Processed - This is a node that has already been processed.
Processed = -2
-
+
// 1+ - This is a node which has this many unlegalized operands.
};
private:
enum LegalizeAction {
- Legal, // The target natively supports this type.
- Promote, // This type should be executed in a larger type.
- Expand // This type should be split into two types of half the size.
+ Legal, // The target natively supports this type.
+ PromoteInteger, // Replace this integer type with a larger one.
+ ExpandInteger, // Split this integer type into two of half the size.
+ SoftenFloat, // Convert this float type to a same size integer type.
+ ExpandFloat, // Split this float type into two of half the size.
+ ScalarizeVector, // Replace this one-element vector with its element type.
+ SplitVector // This vector type should be split into smaller vectors.
};
-
+
/// ValueTypeActions - This is a bitvector that contains two bits for each
/// simple value type, where the two bits correspond to the LegalizeAction
- /// enum. This can be queried with "getTypeAction(VT)".
+ /// enum from TargetLowering. This can be queried with "getTypeAction(VT)".
TargetLowering::ValueTypeActionImpl ValueTypeActions;
-
+
/// getTypeAction - Return how we should legalize values of this type, either
- /// it is already legal or we need to expand it into multiple registers of
- /// smaller integer type, or we need to promote it to a larger type.
- LegalizeAction getTypeAction(MVT::ValueType VT) const {
- return (LegalizeAction)ValueTypeActions.getTypeAction(VT);
+ /// it is already legal, or we need to promote it to a larger integer type, or
+ /// we need to expand it into multiple registers of a smaller integer type, or
+ /// we need to split a vector type into smaller vector types, or we need to
+ /// convert it to a different type of the same size.
+ LegalizeAction getTypeAction(MVT VT) const {
+ switch (ValueTypeActions.getTypeAction(VT)) {
+ default:
+ assert(false && "Unknown legalize action!");
+ case TargetLowering::Legal:
+ return Legal;
+ case TargetLowering::Promote:
+ // Promote can mean
+ // 1) For integers, use a larger integer type (e.g. i8 -> i32).
+ // 2) For vectors, use a wider vector type (e.g. v3i32 -> v4i32).
+ if (!VT.isVector())
+ return PromoteInteger;
+ else if (VT.getVectorNumElements() == 1)
+ return ScalarizeVector;
+ else
+ // TODO: move widen code to LegalizeTypes.
+ return SplitVector;
+ case TargetLowering::Expand:
+ // Expand can mean
+ // 1) split scalar in half, 2) convert a float to an integer,
+ // 3) scalarize a single-element vector, 4) split a vector in two.
+ if (!VT.isVector()) {
+ if (VT.isInteger())
+ return ExpandInteger;
+ else if (VT.getSizeInBits() ==
+ TLI.getTypeToTransformTo(VT).getSizeInBits())
+ return SoftenFloat;
+ else
+ return ExpandFloat;
+ } else if (VT.getVectorNumElements() == 1) {
+ return ScalarizeVector;
+ } else {
+ return SplitVector;
+ }
+ }
}
-
+
/// isTypeLegal - Return true if this type is legal on this target.
- ///
- bool isTypeLegal(MVT::ValueType VT) const {
- return getTypeAction(VT) == Legal;
+ bool isTypeLegal(MVT VT) const {
+ return ValueTypeActions.getTypeAction(VT) == TargetLowering::Legal;
+ }
+
+ /// IgnoreNodeResults - Pretend all of this node's results are legal.
+ bool IgnoreNodeResults(SDNode *N) const {
+ return N->getOpcode() == ISD::TargetConstant;
}
-
- /// PromotedNodes - For nodes that are below legal width, this map indicates
- /// what promoted value to use.
- DenseMap<SDOperand, SDOperand> PromotedNodes;
-
- /// ExpandedNodes - For nodes that need to be expanded this map indicates
- /// which operands are the expanded version of the input.
- DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedNodes;
- /// ScalarizedNodes - For nodes that are <1 x ty>, this map indicates the
+ /// PromotedIntegers - For integer nodes that are below legal width, this map
+ /// indicates what promoted value to use.
+ DenseMap<SDValue, SDValue> PromotedIntegers;
+
+ /// ExpandedIntegers - For integer nodes that need to be expanded this map
+ /// indicates which operands are the expanded version of the input.
+ DenseMap<SDValue, std::pair<SDValue, SDValue> > ExpandedIntegers;
+
+ /// SoftenedFloats - For floating point nodes converted to integers of
+ /// the same size, this map indicates the converted value to use.
+ DenseMap<SDValue, SDValue> SoftenedFloats;
+
+ /// ExpandedFloats - For float nodes that need to be expanded this map
+ /// indicates which operands are the expanded version of the input.
+ DenseMap<SDValue, std::pair<SDValue, SDValue> > ExpandedFloats;
+
+ /// ScalarizedVectors - For nodes that are <1 x ty>, this map indicates the
/// scalar value of type 'ty' to use.
- DenseMap<SDOperand, SDOperand> ScalarizedNodes;
+ DenseMap<SDValue, SDValue> ScalarizedVectors;
- /// SplitNodes - For nodes that need to be split this map indicates
+ /// SplitVectors - For nodes that need to be split this map indicates
/// which operands are the expanded version of the input.
- DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > SplitNodes;
-
- /// ReplacedNodes - For nodes that have been replaced with another,
- /// indicates the replacement node to use.
- DenseMap<SDOperand, SDOperand> ReplacedNodes;
+ DenseMap<SDValue, std::pair<SDValue, SDValue> > SplitVectors;
+
+ /// ReplacedValues - For values that have been replaced with another,
+ /// indicates the replacement value to use.
+ DenseMap<SDValue, SDValue> ReplacedValues;
/// Worklist - This defines a worklist of nodes to process. In order to be
/// pushed onto this worklist, all operands of a node must have already been
/// processed.
SmallVector<SDNode*, 128> Worklist;
-
+
public:
explicit DAGTypeLegalizer(SelectionDAG &dag)
: TLI(dag.getTargetLoweringInfo()), DAG(dag),
ValueTypeActions(TLI.getValueTypeActions()) {
assert(MVT::LAST_VALUETYPE <= 32 &&
"Too many value types for ValueTypeActions to hold!");
- }
-
+ }
+
void run();
-
- /// ReanalyzeNodeFlags - Recompute the NodeID flags for the specified node,
- /// adding it to the worklist if ready.
- void ReanalyzeNodeFlags(SDNode *N) {
+
+ /// ReanalyzeNode - Recompute the NodeId and correct processed operands
+ /// for the specified node, adding it to the worklist if ready.
+ void ReanalyzeNode(SDNode *N) {
N->setNodeId(NewNode);
- MarkNewNodes(N);
+ AnalyzeNewNode(N);
+ // The node may have changed but we don't care.
+ }
+
+ void NoteDeletion(SDNode *Old, SDNode *New) {
+ ExpungeNode(Old);
+ ExpungeNode(New);
+ for (unsigned i = 0, e = Old->getNumValues(); i != e; ++i)
+ ReplacedValues[SDValue(Old, i)] = SDValue(New, i);
}
-
+
private:
- void MarkNewNodes(SDNode *N);
-
- void ReplaceValueWith(SDOperand From, SDOperand To);
+ SDNode *AnalyzeNewNode(SDNode *N);
+ void AnalyzeNewValue(SDValue &Val);
+
+ void ReplaceValueWith(SDValue From, SDValue To);
void ReplaceNodeWith(SDNode *From, SDNode *To);
- void RemapNode(SDOperand &N);
+ void RemapValue(SDValue &N);
+ void ExpungeNode(SDNode *N);
// Common routines.
- SDOperand CreateStackStoreLoad(SDOperand Op, MVT::ValueType DestVT);
- SDOperand HandleMemIntrinsic(SDNode *N);
- void SplitOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
+ SDValue CreateStackStoreLoad(SDValue Op, MVT DestVT);
+ SDValue MakeLibCall(RTLIB::Libcall LC, MVT RetVT,
+ const SDValue *Ops, unsigned NumOps, bool isSigned);
+ SDValue LibCallify(RTLIB::Libcall LC, SDNode *N, bool isSigned);
+
+ SDValue BitConvertToInteger(SDValue Op);
+ SDValue JoinIntegers(SDValue Lo, SDValue Hi);
+ void SplitInteger(SDValue Op, SDValue &Lo, SDValue &Hi);
+ void SplitInteger(SDValue Op, MVT LoVT, MVT HiVT,
+ SDValue &Lo, SDValue &Hi);
+
+ SDValue GetVectorElementPointer(SDValue VecPtr, MVT EltVT, SDValue Index);
//===--------------------------------------------------------------------===//
- // Promotion Support: LegalizeTypesPromote.cpp
+ // Integer Promotion Support: LegalizeIntegerTypes.cpp
//===--------------------------------------------------------------------===//
-
- SDOperand GetPromotedOp(SDOperand Op) {
- SDOperand &PromotedOp = PromotedNodes[Op];
- RemapNode(PromotedOp);
- assert(PromotedOp.Val && "Operand wasn't promoted?");
+
+ SDValue GetPromotedInteger(SDValue Op) {
+ SDValue &PromotedOp = PromotedIntegers[Op];
+ RemapValue(PromotedOp);
+ assert(PromotedOp.getNode() && "Operand wasn't promoted?");
return PromotedOp;
}
- void SetPromotedOp(SDOperand Op, SDOperand Result);
-
- /// GetPromotedZExtOp - Get a promoted operand and zero extend it to the final
- /// size.
- SDOperand GetPromotedZExtOp(SDOperand Op) {
- MVT::ValueType OldVT = Op.getValueType();
- Op = GetPromotedOp(Op);
+ void SetPromotedInteger(SDValue Op, SDValue Result);
+
+ /// ZExtPromotedInteger - Get a promoted operand and zero extend it to the
+ /// final size.
+ SDValue ZExtPromotedInteger(SDValue Op) {
+ MVT OldVT = Op.getValueType();
+ Op = GetPromotedInteger(Op);
return DAG.getZeroExtendInReg(Op, OldVT);
- }
-
- // Result Promotion.
- void PromoteResult(SDNode *N, unsigned ResNo);
- SDOperand PromoteResult_Constant(SDNode *N);
- SDOperand PromoteResult_CTLZ(SDNode *N);
- SDOperand PromoteResult_CTPOP(SDNode *N);
- SDOperand PromoteResult_CTTZ(SDNode *N);
- SDOperand PromoteResult_FP_ROUND(SDNode *N);
- SDOperand PromoteResult_FP_TO_XINT(SDNode *N);
- SDOperand PromoteResult_INT_EXTEND(SDNode *N);
- SDOperand PromoteResult_LOAD(LoadSDNode *N);
- SDOperand PromoteResult_SDIV(SDNode *N);
- SDOperand PromoteResult_SELECT (SDNode *N);
- SDOperand PromoteResult_SELECT_CC(SDNode *N);
- SDOperand PromoteResult_SETCC(SDNode *N);
- SDOperand PromoteResult_SHL(SDNode *N);
- SDOperand PromoteResult_SimpleIntBinOp(SDNode *N);
- SDOperand PromoteResult_SRA(SDNode *N);
- SDOperand PromoteResult_SRL(SDNode *N);
- SDOperand PromoteResult_TRUNCATE(SDNode *N);
- SDOperand PromoteResult_UDIV(SDNode *N);
- SDOperand PromoteResult_UNDEF(SDNode *N);
-
- // Operand Promotion.
- bool PromoteOperand(SDNode *N, unsigned OperandNo);
- SDOperand PromoteOperand_ANY_EXTEND(SDNode *N);
- SDOperand PromoteOperand_BR_CC(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_BRCOND(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_FP_EXTEND(SDNode *N);
- SDOperand PromoteOperand_FP_ROUND(SDNode *N);
- SDOperand PromoteOperand_INT_TO_FP(SDNode *N);
- SDOperand PromoteOperand_RET(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_SELECT(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_SETCC(SDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_SIGN_EXTEND(SDNode *N);
- SDOperand PromoteOperand_STORE(StoreSDNode *N, unsigned OpNo);
- SDOperand PromoteOperand_TRUNCATE(SDNode *N);
- SDOperand PromoteOperand_ZERO_EXTEND(SDNode *N);
-
- void PromoteSetCCOperands(SDOperand &LHS,SDOperand &RHS, ISD::CondCode Code);
+ }
+
+ // Integer Result Promotion.
+ void PromoteIntegerResult(SDNode *N, unsigned ResNo);
+ SDValue PromoteIntRes_AssertSext(SDNode *N);
+ SDValue PromoteIntRes_AssertZext(SDNode *N);
+ SDValue PromoteIntRes_Atomic1(AtomicSDNode *N);
+ SDValue PromoteIntRes_Atomic2(AtomicSDNode *N);
+ SDValue PromoteIntRes_BIT_CONVERT(SDNode *N);
+ SDValue PromoteIntRes_BSWAP(SDNode *N);
+ SDValue PromoteIntRes_BUILD_PAIR(SDNode *N);
+ SDValue PromoteIntRes_Constant(SDNode *N);
+ SDValue PromoteIntRes_CTLZ(SDNode *N);
+ SDValue PromoteIntRes_CTPOP(SDNode *N);
+ SDValue PromoteIntRes_CTTZ(SDNode *N);
+ SDValue PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N);
+ SDValue PromoteIntRes_FP_TO_XINT(SDNode *N);
+ SDValue PromoteIntRes_INT_EXTEND(SDNode *N);
+ SDValue PromoteIntRes_LOAD(LoadSDNode *N);
+ SDValue PromoteIntRes_SDIV(SDNode *N);
+ SDValue PromoteIntRes_SELECT (SDNode *N);
+ SDValue PromoteIntRes_SELECT_CC(SDNode *N);
+ SDValue PromoteIntRes_SETCC(SDNode *N);
+ SDValue PromoteIntRes_SHL(SDNode *N);
+ SDValue PromoteIntRes_SimpleIntBinOp(SDNode *N);
+ SDValue PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N);
+ SDValue PromoteIntRes_SRA(SDNode *N);
+ SDValue PromoteIntRes_SRL(SDNode *N);
+ SDValue PromoteIntRes_TRUNCATE(SDNode *N);
+ SDValue PromoteIntRes_UDIV(SDNode *N);
+ SDValue PromoteIntRes_UNDEF(SDNode *N);
+ SDValue PromoteIntRes_VAARG(SDNode *N);
+
+ // Integer Operand Promotion.
+ bool PromoteIntegerOperand(SDNode *N, unsigned OperandNo);
+ SDValue PromoteIntOp_ANY_EXTEND(SDNode *N);
+ SDValue PromoteIntOp_BUILD_PAIR(SDNode *N);
+ SDValue PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo);
+ SDValue PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo);
+ SDValue PromoteIntOp_BUILD_VECTOR(SDNode *N);
+ SDValue PromoteIntOp_FP_EXTEND(SDNode *N);
+ SDValue PromoteIntOp_FP_ROUND(SDNode *N);
+ SDValue PromoteIntOp_INT_TO_FP(SDNode *N);
+ SDValue PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, unsigned OpNo);
+ SDValue PromoteIntOp_MEMBARRIER(SDNode *N);
+ SDValue PromoteIntOp_SELECT(SDNode *N, unsigned OpNo);
+ SDValue PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo);
+ SDValue PromoteIntOp_SETCC(SDNode *N, unsigned OpNo);
+ SDValue PromoteIntOp_SIGN_EXTEND(SDNode *N);
+ SDValue PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo);
+ SDValue PromoteIntOp_TRUNCATE(SDNode *N);
+ SDValue PromoteIntOp_ZERO_EXTEND(SDNode *N);
+
+ void PromoteSetCCOperands(SDValue &LHS,SDValue &RHS, ISD::CondCode Code);
+
+ //===--------------------------------------------------------------------===//
+ // Integer Expansion Support: LegalizeIntegerTypes.cpp
+ //===--------------------------------------------------------------------===//
+
+ void GetExpandedInteger(SDValue Op, SDValue &Lo, SDValue &Hi);
+ void SetExpandedInteger(SDValue Op, SDValue Lo, SDValue Hi);
+
+ // Integer Result Expansion.
+ void ExpandIntegerResult(SDNode *N, unsigned ResNo);
+ void ExpandIntRes_ANY_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_AssertSext (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_AssertZext (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_Constant (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_CTLZ (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_CTPOP (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_CTTZ (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_LOAD (LoadSDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_SIGN_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_SIGN_EXTEND_INREG (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_TRUNCATE (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_ZERO_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_FP_TO_SINT (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_FP_TO_UINT (SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ void ExpandIntRes_Logical (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_ADDSUB (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_ADDSUBC (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_ADDSUBE (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_BSWAP (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_MUL (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_SDIV (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_SREM (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_UDIV (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_UREM (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandIntRes_Shift (SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ void ExpandShiftByConstant(SDNode *N, unsigned Amt,
+ SDValue &Lo, SDValue &Hi);
+ bool ExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ // Integer Operand Expansion.
+ bool ExpandIntegerOperand(SDNode *N, unsigned OperandNo);
+ SDValue ExpandIntOp_BIT_CONVERT(SDNode *N);
+ SDValue ExpandIntOp_BR_CC(SDNode *N);
+ SDValue ExpandIntOp_BUILD_VECTOR(SDNode *N);
+ SDValue ExpandIntOp_EXTRACT_ELEMENT(SDNode *N);
+ SDValue ExpandIntOp_SELECT_CC(SDNode *N);
+ SDValue ExpandIntOp_SETCC(SDNode *N);
+ SDValue ExpandIntOp_SINT_TO_FP(SDNode *N);
+ SDValue ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo);
+ SDValue ExpandIntOp_TRUNCATE(SDNode *N);
+ SDValue ExpandIntOp_UINT_TO_FP(SDNode *N);
+
+ void IntegerExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
+ ISD::CondCode &CCCode);
//===--------------------------------------------------------------------===//
- // Expansion Support: LegalizeTypesExpand.cpp
+ // Float to Integer Conversion Support: LegalizeFloatTypes.cpp
//===--------------------------------------------------------------------===//
-
- void GetExpandedOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
- void SetExpandedOp(SDOperand Op, SDOperand Lo, SDOperand Hi);
-
- // Result Expansion.
- void ExpandResult(SDNode *N, unsigned ResNo);
- void ExpandResult_ANY_EXTEND (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_AssertZext (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_BIT_CONVERT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_BUILD_PAIR (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_Constant (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_CTLZ (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_CTPOP (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_CTTZ (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_LOAD (LoadSDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_MERGE_VALUES(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SIGN_EXTEND(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SIGN_EXTEND_INREG(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_TRUNCATE (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_UNDEF (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ZERO_EXTEND(SDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- void ExpandResult_Logical (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_BSWAP (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ADDSUB (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ADDSUBC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_ADDSUBE (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SELECT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_SELECT_CC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_MUL (SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void ExpandResult_Shift (SDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- void ExpandShiftByConstant(SDNode *N, unsigned Amt,
- SDOperand &Lo, SDOperand &Hi);
- bool ExpandShiftWithKnownAmountBit(SDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- // Operand Expansion.
- bool ExpandOperand(SDNode *N, unsigned OperandNo);
- SDOperand ExpandOperand_TRUNCATE(SDNode *N);
- SDOperand ExpandOperand_BIT_CONVERT(SDNode *N);
- SDOperand ExpandOperand_UINT_TO_FP(SDOperand Source, MVT::ValueType DestTy);
- SDOperand ExpandOperand_SINT_TO_FP(SDOperand Source, MVT::ValueType DestTy);
- SDOperand ExpandOperand_EXTRACT_ELEMENT(SDNode *N);
- SDOperand ExpandOperand_SETCC(SDNode *N);
- SDOperand ExpandOperand_STORE(StoreSDNode *N, unsigned OpNo);
-
- void ExpandSetCCOperands(SDOperand &NewLHS, SDOperand &NewRHS,
+
+ SDValue GetSoftenedFloat(SDValue Op) {
+ SDValue &SoftenedOp = SoftenedFloats[Op];
+ RemapValue(SoftenedOp);
+ assert(SoftenedOp.getNode() && "Operand wasn't converted to integer?");
+ return SoftenedOp;
+ }
+ void SetSoftenedFloat(SDValue Op, SDValue Result);
+
+ // Result Float to Integer Conversion.
+ void SoftenFloatResult(SDNode *N, unsigned OpNo);
+ SDValue SoftenFloatRes_BIT_CONVERT(SDNode *N);
+ SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N);
+ SDValue SoftenFloatRes_ConstantFP(ConstantFPSDNode *N);
+ SDValue SoftenFloatRes_FABS(SDNode *N);
+ SDValue SoftenFloatRes_FADD(SDNode *N);
+ SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N);
+ SDValue SoftenFloatRes_FDIV(SDNode *N);
+ SDValue SoftenFloatRes_FMUL(SDNode *N);
+ SDValue SoftenFloatRes_FP_EXTEND(SDNode *N);
+ SDValue SoftenFloatRes_FP_ROUND(SDNode *N);
+ SDValue SoftenFloatRes_FPOW(SDNode *N);
+ SDValue SoftenFloatRes_FPOWI(SDNode *N);
+ SDValue SoftenFloatRes_FSUB(SDNode *N);
+ SDValue SoftenFloatRes_LOAD(SDNode *N);
+ SDValue SoftenFloatRes_SELECT(SDNode *N);
+ SDValue SoftenFloatRes_SELECT_CC(SDNode *N);
+ SDValue SoftenFloatRes_SINT_TO_FP(SDNode *N);
+ SDValue SoftenFloatRes_UINT_TO_FP(SDNode *N);
+
+ // Operand Float to Integer Conversion.
+ bool SoftenFloatOperand(SDNode *N, unsigned OpNo);
+ SDValue SoftenFloatOp_BIT_CONVERT(SDNode *N);
+ SDValue SoftenFloatOp_BR_CC(SDNode *N);
+ SDValue SoftenFloatOp_FP_ROUND(SDNode *N);
+ SDValue SoftenFloatOp_FP_TO_SINT(SDNode *N);
+ SDValue SoftenFloatOp_FP_TO_UINT(SDNode *N);
+ SDValue SoftenFloatOp_SELECT_CC(SDNode *N);
+ SDValue SoftenFloatOp_SETCC(SDNode *N);
+ SDValue SoftenFloatOp_STORE(SDNode *N, unsigned OpNo);
+
+ void SoftenSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
ISD::CondCode &CCCode);
-
+
+ //===--------------------------------------------------------------------===//
+ // Float Expansion Support: LegalizeFloatTypes.cpp
+ //===--------------------------------------------------------------------===//
+
+ void GetExpandedFloat(SDValue Op, SDValue &Lo, SDValue &Hi);
+ void SetExpandedFloat(SDValue Op, SDValue Lo, SDValue Hi);
+
+ // Float Result Expansion.
+ void ExpandFloatResult(SDNode *N, unsigned ResNo);
+ void ExpandFloatRes_ConstantFP(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FABS (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FADD (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FCEIL (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FCOS (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FDIV (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FEXP (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FEXP2 (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FFLOOR (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FLOG (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FLOG2 (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FLOG10 (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FMUL (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FNEARBYINT(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FNEG (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FP_EXTEND (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FPOW (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FPOWI (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FRINT (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FSIN (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FSQRT (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FSUB (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_FTRUNC (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_LOAD (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandFloatRes_XINT_TO_FP(SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ // Float Operand Expansion.
+ bool ExpandFloatOperand(SDNode *N, unsigned OperandNo);
+ SDValue ExpandFloatOp_BR_CC(SDNode *N);
+ SDValue ExpandFloatOp_FP_ROUND(SDNode *N);
+ SDValue ExpandFloatOp_FP_TO_SINT(SDNode *N);
+ SDValue ExpandFloatOp_FP_TO_UINT(SDNode *N);
+ SDValue ExpandFloatOp_SELECT_CC(SDNode *N);
+ SDValue ExpandFloatOp_SETCC(SDNode *N);
+ SDValue ExpandFloatOp_STORE(SDNode *N, unsigned OpNo);
+
+ void FloatExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
+ ISD::CondCode &CCCode);
+
//===--------------------------------------------------------------------===//
- // Scalarization Support: LegalizeTypesScalarize.cpp
+ // Scalarization Support: LegalizeVectorTypes.cpp
//===--------------------------------------------------------------------===//
-
- SDOperand GetScalarizedOp(SDOperand Op) {
- SDOperand &ScalarOp = ScalarizedNodes[Op];
- RemapNode(ScalarOp);
- assert(ScalarOp.Val && "Operand wasn't scalarized?");
- return ScalarOp;
+
+ SDValue GetScalarizedVector(SDValue Op) {
+ SDValue &ScalarizedOp = ScalarizedVectors[Op];
+ RemapValue(ScalarizedOp);
+ assert(ScalarizedOp.getNode() && "Operand wasn't scalarized?");
+ return ScalarizedOp;
}
- void SetScalarizedOp(SDOperand Op, SDOperand Result);
-
- // Result Vector Scalarization: <1 x ty> -> ty.
- void ScalarizeResult(SDNode *N, unsigned OpNo);
- SDOperand ScalarizeRes_UNDEF(SDNode *N);
- SDOperand ScalarizeRes_LOAD(LoadSDNode *N);
- SDOperand ScalarizeRes_BinOp(SDNode *N);
- SDOperand ScalarizeRes_UnaryOp(SDNode *N);
- SDOperand ScalarizeRes_FPOWI(SDNode *N);
- SDOperand ScalarizeRes_VECTOR_SHUFFLE(SDNode *N);
- SDOperand ScalarizeRes_BIT_CONVERT(SDNode *N);
- SDOperand ScalarizeRes_SELECT(SDNode *N);
-
- // Operand Vector Scalarization: <1 x ty> -> ty.
- bool ScalarizeOperand(SDNode *N, unsigned OpNo);
- SDOperand ScalarizeOp_EXTRACT_VECTOR_ELT(SDNode *N, unsigned OpNo);
+ void SetScalarizedVector(SDValue Op, SDValue Result);
+
+ // Vector Result Scalarization: <1 x ty> -> ty.
+ void ScalarizeVectorResult(SDNode *N, unsigned OpNo);
+ SDValue ScalarizeVecRes_BinOp(SDNode *N);
+ SDValue ScalarizeVecRes_UnaryOp(SDNode *N);
+
+ SDValue ScalarizeVecRes_BIT_CONVERT(SDNode *N);
+ SDValue ScalarizeVecRes_EXTRACT_SUBVECTOR(SDNode *N);
+ SDValue ScalarizeVecRes_FPOWI(SDNode *N);
+ SDValue ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N);
+ SDValue ScalarizeVecRes_LOAD(LoadSDNode *N);
+ SDValue ScalarizeVecRes_SELECT(SDNode *N);
+ SDValue ScalarizeVecRes_SELECT_CC(SDNode *N);
+ SDValue ScalarizeVecRes_UNDEF(SDNode *N);
+ SDValue ScalarizeVecRes_VECTOR_SHUFFLE(SDNode *N);
+ SDValue ScalarizeVecRes_VSETCC(SDNode *N);
+
+ // Vector Operand Scalarization: <1 x ty> -> ty.
+ bool ScalarizeVectorOperand(SDNode *N, unsigned OpNo);
+ SDValue ScalarizeVecOp_BIT_CONVERT(SDNode *N);
+ SDValue ScalarizeVecOp_CONCAT_VECTORS(SDNode *N);
+ SDValue ScalarizeVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
+ SDValue ScalarizeVecOp_STORE(StoreSDNode *N, unsigned OpNo);
//===--------------------------------------------------------------------===//
- // Vector Splitting Support: LegalizeTypesSplit.cpp
+ // Vector Splitting Support: LegalizeVectorTypes.cpp
//===--------------------------------------------------------------------===//
-
- void GetSplitOp(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
- void SetSplitOp(SDOperand Op, SDOperand Lo, SDOperand Hi);
-
- // Result Vector Splitting: <128 x ty> -> 2 x <64 x ty>.
- void SplitResult(SDNode *N, unsigned OpNo);
-
- void SplitRes_UNDEF(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_LOAD(LoadSDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_BUILD_PAIR(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_INSERT_VECTOR_ELT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_VECTOR_SHUFFLE(SDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- void SplitRes_BUILD_VECTOR(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_CONCAT_VECTORS(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_BIT_CONVERT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_UnOp(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_BinOp(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_FPOWI(SDNode *N, SDOperand &Lo, SDOperand &Hi);
- void SplitRes_SELECT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
-
- // Operand Vector Scalarization: <128 x ty> -> 2 x <64 x ty>.
- bool SplitOperand(SDNode *N, unsigned OpNo);
-
- SDOperand SplitOp_STORE(StoreSDNode *N, unsigned OpNo);
- SDOperand SplitOp_RET(SDNode *N, unsigned OpNo);
+
+ void GetSplitVector(SDValue Op, SDValue &Lo, SDValue &Hi);
+ void SetSplitVector(SDValue Op, SDValue Lo, SDValue Hi);
+
+ // Vector Result Splitting: <128 x ty> -> 2 x <64 x ty>.
+ void SplitVectorResult(SDNode *N, unsigned OpNo);
+ void SplitVecRes_BinOp(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_UnaryOp(SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ void SplitVecRes_BIT_CONVERT(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_BUILD_PAIR(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_BUILD_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_CONCAT_VECTORS(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_EXTRACT_SUBVECTOR(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_FPOWI(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_INSERT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_LOAD(LoadSDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_UNDEF(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_VECTOR_SHUFFLE(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_VSETCC(SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ // Vector Operand Splitting: <128 x ty> -> 2 x <64 x ty>.
+ bool SplitVectorOperand(SDNode *N, unsigned OpNo);
+ SDValue SplitVecOp_UnaryOp(SDNode *N);
+
+ SDValue SplitVecOp_BIT_CONVERT(SDNode *N);
+ SDValue SplitVecOp_EXTRACT_SUBVECTOR(SDNode *N);
+ SDValue SplitVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
+ SDValue SplitVecOp_STORE(StoreSDNode *N, unsigned OpNo);
+ SDValue SplitVecOp_VECTOR_SHUFFLE(SDNode *N, unsigned OpNo);
+
+ //===--------------------------------------------------------------------===//
+ // Generic Splitting: LegalizeTypesGeneric.cpp
+ //===--------------------------------------------------------------------===//
+
+ // Legalization methods which only use that the illegal type is split into two
+ // not necessarily identical types. As such they can be used for splitting
+ // vectors and expanding integers and floats.
+
+ void GetSplitOp(SDValue Op, SDValue &Lo, SDValue &Hi) {
+ if (Op.getValueType().isVector())
+ GetSplitVector(Op, Lo, Hi);
+ else if (Op.getValueType().isInteger())
+ GetExpandedInteger(Op, Lo, Hi);
+ else
+ GetExpandedFloat(Op, Lo, Hi);
+ }
+
+ /// GetSplitDestVTs - Compute the VTs needed for the low/hi parts of a type
+ /// which is split (or expanded) into two not necessarily identical pieces.
+ void GetSplitDestVTs(MVT InVT, MVT &LoVT, MVT &HiVT);
+
+ // Generic Result Splitting.
+ void SplitRes_MERGE_VALUES(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitRes_SELECT (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitRes_SELECT_CC (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitRes_UNDEF (SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ //===--------------------------------------------------------------------===//
+ // Generic Expansion: LegalizeTypesGeneric.cpp
+ //===--------------------------------------------------------------------===//
+
+ // Legalization methods which only use that the illegal type is split into two
+ // identical types of half the size, and that the Lo/Hi part is stored first
+ // in memory on little/big-endian machines, followed by the Hi/Lo part. As
+ // such they can be used for expanding integers and floats.
+
+ void GetExpandedOp(SDValue Op, SDValue &Lo, SDValue &Hi) {
+ if (Op.getValueType().isInteger())
+ GetExpandedInteger(Op, Lo, Hi);
+ else
+ GetExpandedFloat(Op, Lo, Hi);
+ }
+
+ // Generic Result Expansion.
+ void ExpandRes_BIT_CONVERT (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandRes_BUILD_PAIR (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandRes_EXTRACT_ELEMENT (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandRes_EXTRACT_VECTOR_ELT(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandRes_NormalLoad (SDNode *N, SDValue &Lo, SDValue &Hi);
+ void ExpandRes_VAARG (SDNode *N, SDValue &Lo, SDValue &Hi);
+
+ // Generic Operand Expansion.
+ SDValue ExpandOp_BIT_CONVERT (SDNode *N);
+ SDValue ExpandOp_BUILD_VECTOR (SDNode *N);
+ SDValue ExpandOp_EXTRACT_ELEMENT(SDNode *N);
+ SDValue ExpandOp_NormalStore (SDNode *N, unsigned OpNo);
+
};
} // end namespace llvm.
projects / oota-llvm.git / blobdiff