#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Target/TargetLowering.h"
#include "llvm/ADT/DenseMap.h"
+#include "llvm/ADT/DenseSet.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/Debug.h"
/// involves promoting small sizes to large sizes or splitting up large values
/// into small values.
///
-class VISIBILITY_HIDDEN DAGTypeLegalizer {
- TargetLowering &TLI;
+class LLVM_LIBRARY_VISIBILITY DAGTypeLegalizer {
+ const TargetLowering &TLI;
SelectionDAG &DAG;
public:
// NodeIdFlags - This pass uses the NodeId on the SDNodes to hold information
/// to be handled.
ReadyToProcess = 0,
- /// NewNode - This is a new node that was created in the process of
- /// legalizing some other node.
+ /// NewNode - This is a new node, not before seen, that was created in the
+ /// process of legalizing some other node.
NewNode = -1,
+ /// Unanalyzed - This node's ID needs to be set to the number of its
+ /// unprocessed operands.
+ Unanalyzed = -2,
+
/// Processed - This is a node that has already been processed.
- Processed = -2
+ Processed = -3
- // 1+ - This is a node which has this many unlegalized operands.
+ // 1+ - This is a node which has this many unprocessed operands.
};
private:
enum LegalizeAction {
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.
+ SplitVector, // Split this vector type into two of half the size.
+ WidenVector // This vector type should be widened into a larger vector.
};
/// ValueTypeActions - This is a bitvector that contains two bits for each
/// 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 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)) {
+ /// getTypeAction - Return how we should legalize values of this type.
+ LegalizeAction getTypeAction(EVT VT) const {
+ switch (ValueTypeActions.getTypeAction(*DAG.getContext(), VT)) {
default:
assert(false && "Unknown legalize action!");
case TargetLowering::Legal:
// 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;
+ return WidenVector;
case TargetLowering::Expand:
// Expand can mean
// 1) split scalar in half, 2) convert a float to an integer,
if (VT.isInteger())
return ExpandInteger;
else if (VT.getSizeInBits() ==
- TLI.getTypeToTransformTo(VT).getSizeInBits())
+ TLI.getTypeToTransformTo(*DAG.getContext(), VT).getSizeInBits())
return SoftenFloat;
else
return ExpandFloat;
}
/// isTypeLegal - Return true if this type is legal on this target.
- bool isTypeLegal(MVT VT) const {
- return ValueTypeActions.getTypeAction(VT) == TargetLowering::Legal;
+ bool isTypeLegal(EVT VT) const {
+ return (ValueTypeActions.getTypeAction(*DAG.getContext(), VT) ==
+ TargetLowering::Legal);
}
/// IgnoreNodeResults - Pretend all of this node's results are legal.
/// which operands are the expanded version of the input.
DenseMap<SDValue, std::pair<SDValue, SDValue> > SplitVectors;
+ /// WidenedVectors - For vector nodes that need to be widened, indicates
+ /// the widened value to use.
+ DenseMap<SDValue, SDValue> WidenedVectors;
+
/// ReplacedValues - For values that have been replaced with another,
/// indicates the replacement value to use.
DenseMap<SDValue, SDValue> ReplacedValues;
explicit DAGTypeLegalizer(SelectionDAG &dag)
: TLI(dag.getTargetLoweringInfo()), DAG(dag),
ValueTypeActions(TLI.getValueTypeActions()) {
- assert(MVT::LAST_VALUETYPE <= 32 &&
+ assert(MVT::LAST_VALUETYPE <= MVT::MAX_ALLOWED_VALUETYPE &&
"Too many value types for ValueTypeActions to hold!");
}
- void run();
-
- /// 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);
- AnalyzeNewNode(N);
- // The node may have changed but we don't care.
- }
+ /// run - This is the main entry point for the type legalizer. This does a
+ /// top-down traversal of the dag, legalizing types as it goes. Returns
+ /// "true" if it made any changes.
+ bool run();
void NoteDeletion(SDNode *Old, SDNode *New) {
ExpungeNode(Old);
private:
SDNode *AnalyzeNewNode(SDNode *N);
void AnalyzeNewValue(SDValue &Val);
-
- void ReplaceValueWith(SDValue From, SDValue To);
- void ReplaceNodeWith(SDNode *From, SDNode *To);
-
- void RemapValue(SDValue &N);
void ExpungeNode(SDNode *N);
+ void PerformExpensiveChecks();
+ void RemapValue(SDValue &N);
// Common routines.
- 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 BitConvertVectorToIntegerVector(SDValue Op);
+ SDValue CreateStackStoreLoad(SDValue Op, EVT DestVT);
+ bool CustomLowerNode(SDNode *N, EVT VT, bool LegalizeResult);
+ bool CustomWidenLowerNode(SDNode *N, EVT VT);
+ SDValue GetVectorElementPointer(SDValue VecPtr, EVT EltVT, SDValue Index);
SDValue JoinIntegers(SDValue Lo, SDValue Hi);
+ SDValue LibCallify(RTLIB::Libcall LC, SDNode *N, bool isSigned);
+ SDValue MakeLibCall(RTLIB::Libcall LC, EVT RetVT,
+ const SDValue *Ops, unsigned NumOps, bool isSigned,
+ DebugLoc dl);
+ SDValue PromoteTargetBoolean(SDValue Bool, EVT VT);
+ void ReplaceValueWith(SDValue From, SDValue To);
void SplitInteger(SDValue Op, SDValue &Lo, SDValue &Hi);
- void SplitInteger(SDValue Op, MVT LoVT, MVT HiVT,
+ void SplitInteger(SDValue Op, EVT LoVT, EVT HiVT,
SDValue &Lo, SDValue &Hi);
- SDValue GetVectorElementPointer(SDValue VecPtr, MVT EltVT, SDValue Index);
-
//===--------------------------------------------------------------------===//
// Integer Promotion Support: LegalizeIntegerTypes.cpp
//===--------------------------------------------------------------------===//
+ /// GetPromotedInteger - Given a processed operand Op which was promoted to a
+ /// larger integer type, this returns the promoted value. The low bits of the
+ /// promoted value corresponding to the original type are exactly equal to Op.
+ /// The extra bits contain rubbish, so the promoted value may need to be zero-
+ /// or sign-extended from the original type before it is usable (the helpers
+ /// SExtPromotedInteger and ZExtPromotedInteger can do this for you).
+ /// For example, if Op is an i16 and was promoted to an i32, then this method
+ /// returns an i32, the lower 16 bits of which coincide with Op, and the upper
+ /// 16 bits of which contain rubbish.
SDValue GetPromotedInteger(SDValue Op) {
SDValue &PromotedOp = PromotedIntegers[Op];
RemapValue(PromotedOp);
}
void SetPromotedInteger(SDValue Op, SDValue Result);
+ /// SExtPromotedInteger - Get a promoted operand and sign extend it to the
+ /// final size.
+ SDValue SExtPromotedInteger(SDValue Op) {
+ EVT OldVT = Op.getValueType();
+ DebugLoc dl = Op.getDebugLoc();
+ Op = GetPromotedInteger(Op);
+ return DAG.getNode(ISD::SIGN_EXTEND_INREG, dl, Op.getValueType(), Op,
+ DAG.getValueType(OldVT));
+ }
+
/// ZExtPromotedInteger - Get a promoted operand and zero extend it to the
/// final size.
SDValue ZExtPromotedInteger(SDValue Op) {
- MVT OldVT = Op.getValueType();
+ EVT OldVT = Op.getValueType();
+ DebugLoc dl = Op.getDebugLoc();
Op = GetPromotedInteger(Op);
- return DAG.getZeroExtendInReg(Op, OldVT);
+ return DAG.getZeroExtendInReg(Op, dl, OldVT);
}
// Integer Result Promotion.
SDValue PromoteIntRes_BSWAP(SDNode *N);
SDValue PromoteIntRes_BUILD_PAIR(SDNode *N);
SDValue PromoteIntRes_Constant(SDNode *N);
+ SDValue PromoteIntRes_CONVERT_RNDSAT(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_FP32_TO_FP16(SDNode *N);
SDValue PromoteIntRes_INT_EXTEND(SDNode *N);
SDValue PromoteIntRes_LOAD(LoadSDNode *N);
+ SDValue PromoteIntRes_Overflow(SDNode *N);
+ SDValue PromoteIntRes_SADDSUBO(SDNode *N, unsigned ResNo);
SDValue PromoteIntRes_SDIV(SDNode *N);
- SDValue PromoteIntRes_SELECT (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_SRA(SDNode *N);
SDValue PromoteIntRes_SRL(SDNode *N);
SDValue PromoteIntRes_TRUNCATE(SDNode *N);
+ SDValue PromoteIntRes_UADDSUBO(SDNode *N, unsigned ResNo);
SDValue PromoteIntRes_UDIV(SDNode *N);
SDValue PromoteIntRes_UNDEF(SDNode *N);
SDValue PromoteIntRes_VAARG(SDNode *N);
+ SDValue PromoteIntRes_XMULO(SDNode *N, unsigned ResNo);
// Integer Operand Promotion.
bool PromoteIntegerOperand(SDNode *N, unsigned OperandNo);
SDValue PromoteIntOp_ANY_EXTEND(SDNode *N);
+ SDValue PromoteIntOp_BIT_CONVERT(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_CONVERT_RNDSAT(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_SCALAR_TO_VECTOR(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_Shift(SDNode *N);
SDValue PromoteIntOp_SIGN_EXTEND(SDNode *N);
+ SDValue PromoteIntOp_SINT_TO_FP(SDNode *N);
SDValue PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo);
SDValue PromoteIntOp_TRUNCATE(SDNode *N);
+ SDValue PromoteIntOp_UINT_TO_FP(SDNode *N);
SDValue PromoteIntOp_ZERO_EXTEND(SDNode *N);
void PromoteSetCCOperands(SDValue &LHS,SDValue &RHS, ISD::CondCode Code);
// Integer Expansion Support: LegalizeIntegerTypes.cpp
//===--------------------------------------------------------------------===//
+ /// GetExpandedInteger - Given a processed operand Op which was expanded into
+ /// two integers of half the size, this returns the two halves. The low bits
+ /// of Op are exactly equal to the bits of Lo; the high bits exactly equal Hi.
+ /// For example, if Op is an i64 which was expanded into two i32's, then this
+ /// method returns the two i32's, with Lo being equal to the lower 32 bits of
+ /// Op, and Hi being equal to the upper 32 bits.
void GetExpandedInteger(SDValue Op, SDValue &Lo, SDValue &Hi);
void SetExpandedInteger(SDValue Op, SDValue Lo, SDValue Hi);
void ExpandShiftByConstant(SDNode *N, unsigned Amt,
SDValue &Lo, SDValue &Hi);
bool ExpandShiftWithKnownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi);
+ bool ExpandShiftWithUnknownAmountBit(SDNode *N, SDValue &Lo, SDValue &Hi);
// Integer Operand Expansion.
bool ExpandIntegerOperand(SDNode *N, unsigned OperandNo);
SDValue ExpandIntOp_EXTRACT_ELEMENT(SDNode *N);
SDValue ExpandIntOp_SELECT_CC(SDNode *N);
SDValue ExpandIntOp_SETCC(SDNode *N);
+ SDValue ExpandIntOp_Shift(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);
+ SDValue ExpandIntOp_RETURNADDR(SDNode *N);
void IntegerExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
- ISD::CondCode &CCCode);
+ ISD::CondCode &CCCode, DebugLoc dl);
//===--------------------------------------------------------------------===//
// Float to Integer Conversion Support: LegalizeFloatTypes.cpp
//===--------------------------------------------------------------------===//
+ /// GetSoftenedFloat - Given a processed operand Op which was converted to an
+ /// integer of the same size, this returns the integer. The integer contains
+ /// exactly the same bits as Op - only the type changed. For example, if Op
+ /// is an f32 which was softened to an i32, then this method returns an i32,
+ /// the bits of which coincide with those of Op.
SDValue GetSoftenedFloat(SDValue Op) {
SDValue &SoftenedOp = SoftenedFloats[Op];
RemapValue(SoftenedOp);
SDValue SoftenFloatRes_BIT_CONVERT(SDNode *N);
SDValue SoftenFloatRes_BUILD_PAIR(SDNode *N);
SDValue SoftenFloatRes_ConstantFP(ConstantFPSDNode *N);
+ SDValue SoftenFloatRes_EXTRACT_VECTOR_ELT(SDNode *N);
SDValue SoftenFloatRes_FABS(SDNode *N);
SDValue SoftenFloatRes_FADD(SDNode *N);
+ SDValue SoftenFloatRes_FCEIL(SDNode *N);
SDValue SoftenFloatRes_FCOPYSIGN(SDNode *N);
+ SDValue SoftenFloatRes_FCOS(SDNode *N);
SDValue SoftenFloatRes_FDIV(SDNode *N);
+ SDValue SoftenFloatRes_FEXP(SDNode *N);
+ SDValue SoftenFloatRes_FEXP2(SDNode *N);
+ SDValue SoftenFloatRes_FFLOOR(SDNode *N);
+ SDValue SoftenFloatRes_FLOG(SDNode *N);
+ SDValue SoftenFloatRes_FLOG2(SDNode *N);
+ SDValue SoftenFloatRes_FLOG10(SDNode *N);
SDValue SoftenFloatRes_FMUL(SDNode *N);
+ SDValue SoftenFloatRes_FNEARBYINT(SDNode *N);
+ SDValue SoftenFloatRes_FNEG(SDNode *N);
SDValue SoftenFloatRes_FP_EXTEND(SDNode *N);
+ SDValue SoftenFloatRes_FP16_TO_FP32(SDNode *N);
SDValue SoftenFloatRes_FP_ROUND(SDNode *N);
SDValue SoftenFloatRes_FPOW(SDNode *N);
SDValue SoftenFloatRes_FPOWI(SDNode *N);
+ SDValue SoftenFloatRes_FREM(SDNode *N);
+ SDValue SoftenFloatRes_FRINT(SDNode *N);
+ SDValue SoftenFloatRes_FSIN(SDNode *N);
+ SDValue SoftenFloatRes_FSQRT(SDNode *N);
SDValue SoftenFloatRes_FSUB(SDNode *N);
+ SDValue SoftenFloatRes_FTRUNC(SDNode *N);
SDValue SoftenFloatRes_LOAD(SDNode *N);
SDValue SoftenFloatRes_SELECT(SDNode *N);
SDValue SoftenFloatRes_SELECT_CC(SDNode *N);
+ SDValue SoftenFloatRes_UNDEF(SDNode *N);
+ SDValue SoftenFloatRes_VAARG(SDNode *N);
SDValue SoftenFloatRes_XINT_TO_FP(SDNode *N);
// Operand Float to Integer Conversion.
SDValue SoftenFloatOp_FP_ROUND(SDNode *N);
SDValue SoftenFloatOp_FP_TO_SINT(SDNode *N);
SDValue SoftenFloatOp_FP_TO_UINT(SDNode *N);
+ SDValue SoftenFloatOp_FP32_TO_FP16(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);
+ ISD::CondCode &CCCode, DebugLoc dl);
//===--------------------------------------------------------------------===//
// Float Expansion Support: LegalizeFloatTypes.cpp
//===--------------------------------------------------------------------===//
+ /// GetExpandedFloat - Given a processed operand Op which was expanded into
+ /// two floating point values of half the size, this returns the two halves.
+ /// The low bits of Op are exactly equal to the bits of Lo; the high bits
+ /// exactly equal Hi. For example, if Op is a ppcf128 which was expanded
+ /// into two f64's, then this method returns the two f64's, with Lo being
+ /// equal to the lower 64 bits of Op, and Hi to the upper 64 bits.
void GetExpandedFloat(SDValue Op, SDValue &Lo, SDValue &Hi);
void SetExpandedFloat(SDValue Op, 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_FCOPYSIGN (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);
SDValue ExpandFloatOp_STORE(SDNode *N, unsigned OpNo);
void FloatExpandSetCCOperands(SDValue &NewLHS, SDValue &NewRHS,
- ISD::CondCode &CCCode);
+ ISD::CondCode &CCCode, DebugLoc dl);
//===--------------------------------------------------------------------===//
// Scalarization Support: LegalizeVectorTypes.cpp
//===--------------------------------------------------------------------===//
+ /// GetScalarizedVector - Given a processed one-element vector Op which was
+ /// scalarized to its element type, this returns the element. For example,
+ /// if Op is a v1i32, Op = < i32 val >, this method returns val, an i32.
SDValue GetScalarizedVector(SDValue Op) {
SDValue &ScalarizedOp = ScalarizedVectors[Op];
RemapValue(ScalarizedOp);
void ScalarizeVectorResult(SDNode *N, unsigned OpNo);
SDValue ScalarizeVecRes_BinOp(SDNode *N);
SDValue ScalarizeVecRes_UnaryOp(SDNode *N);
+ SDValue ScalarizeVecRes_InregOp(SDNode *N);
SDValue ScalarizeVecRes_BIT_CONVERT(SDNode *N);
SDValue ScalarizeVecRes_CONVERT_RNDSAT(SDNode *N);
SDValue ScalarizeVecRes_FPOWI(SDNode *N);
SDValue ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N);
SDValue ScalarizeVecRes_LOAD(LoadSDNode *N);
+ SDValue ScalarizeVecRes_SCALAR_TO_VECTOR(SDNode *N);
+ SDValue ScalarizeVecRes_SIGN_EXTEND_INREG(SDNode *N);
SDValue ScalarizeVecRes_SELECT(SDNode *N);
SDValue ScalarizeVecRes_SELECT_CC(SDNode *N);
+ SDValue ScalarizeVecRes_SETCC(SDNode *N);
SDValue ScalarizeVecRes_UNDEF(SDNode *N);
SDValue ScalarizeVecRes_VECTOR_SHUFFLE(SDNode *N);
SDValue ScalarizeVecRes_VSETCC(SDNode *N);
// Vector Splitting Support: LegalizeVectorTypes.cpp
//===--------------------------------------------------------------------===//
+ /// GetSplitVector - Given a processed vector Op which was split into vectors
+ /// of half the size, this method returns the halves. The first elements of
+ /// Op coincide with the elements of Lo; the remaining elements of Op coincide
+ /// with the elements of Hi: Op is what you would get by concatenating Lo and
+ /// Hi. For example, if Op is a v8i32 that was split into two v4i32's, then
+ /// this method returns the two v4i32's, with Lo corresponding to the first 4
+ /// elements of Op, and Hi to the last 4 elements.
void GetSplitVector(SDValue Op, SDValue &Lo, SDValue &Hi);
void SetSplitVector(SDValue Op, SDValue Lo, SDValue Hi);
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_InregOp(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_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_SCALAR_TO_VECTOR(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_SIGN_EXTEND_INREG(SDNode *N, SDValue &Lo, SDValue &Hi);
+ void SplitVecRes_SETCC(SDNode *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);
+ void SplitVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N, SDValue &Lo,
+ SDValue &Hi);
// Vector Operand Splitting: <128 x ty> -> 2 x <64 x ty>.
bool SplitVectorOperand(SDNode *N, unsigned OpNo);
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);
+
+ //===--------------------------------------------------------------------===//
+ // Vector Widening Support: LegalizeVectorTypes.cpp
+ //===--------------------------------------------------------------------===//
+
+ /// GetWidenedVector - Given a processed vector Op which was widened into a
+ /// larger vector, this method returns the larger vector. The elements of
+ /// the returned vector consist of the elements of Op followed by elements
+ /// containing rubbish. For example, if Op is a v2i32 that was widened to a
+ /// v4i32, then this method returns a v4i32 for which the first two elements
+ /// are the same as those of Op, while the last two elements contain rubbish.
+ SDValue GetWidenedVector(SDValue Op) {
+ SDValue &WidenedOp = WidenedVectors[Op];
+ RemapValue(WidenedOp);
+ assert(WidenedOp.getNode() && "Operand wasn't widened?");
+ return WidenedOp;
+ }
+ void SetWidenedVector(SDValue Op, SDValue Result);
+
+ // Widen Vector Result Promotion.
+ void WidenVectorResult(SDNode *N, unsigned ResNo);
+ SDValue WidenVecRes_BIT_CONVERT(SDNode* N);
+ SDValue WidenVecRes_BUILD_VECTOR(SDNode* N);
+ SDValue WidenVecRes_CONCAT_VECTORS(SDNode* N);
+ SDValue WidenVecRes_CONVERT_RNDSAT(SDNode* N);
+ SDValue WidenVecRes_EXTRACT_SUBVECTOR(SDNode* N);
+ SDValue WidenVecRes_INSERT_VECTOR_ELT(SDNode* N);
+ SDValue WidenVecRes_LOAD(SDNode* N);
+ SDValue WidenVecRes_SCALAR_TO_VECTOR(SDNode* N);
+ SDValue WidenVecRes_SIGN_EXTEND_INREG(SDNode* N);
+ SDValue WidenVecRes_SELECT(SDNode* N);
+ SDValue WidenVecRes_SELECT_CC(SDNode* N);
+ SDValue WidenVecRes_SETCC(SDNode* N);
+ SDValue WidenVecRes_UNDEF(SDNode *N);
+ SDValue WidenVecRes_VECTOR_SHUFFLE(ShuffleVectorSDNode *N);
+ SDValue WidenVecRes_VSETCC(SDNode* N);
+
+ SDValue WidenVecRes_Binary(SDNode *N);
+ SDValue WidenVecRes_Convert(SDNode *N);
+ SDValue WidenVecRes_Shift(SDNode *N);
+ SDValue WidenVecRes_Unary(SDNode *N);
+ SDValue WidenVecRes_InregOp(SDNode *N);
+
+ // Widen Vector Operand.
+ bool WidenVectorOperand(SDNode *N, unsigned ResNo);
+ SDValue WidenVecOp_BIT_CONVERT(SDNode *N);
+ SDValue WidenVecOp_CONCAT_VECTORS(SDNode *N);
+ SDValue WidenVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
+ SDValue WidenVecOp_EXTRACT_SUBVECTOR(SDNode *N);
+ SDValue WidenVecOp_STORE(SDNode* N);
+
+ SDValue WidenVecOp_Convert(SDNode *N);
+
+ //===--------------------------------------------------------------------===//
+ // Vector Widening Utilities Support: LegalizeVectorTypes.cpp
+ //===--------------------------------------------------------------------===//
+
+ /// Helper GenWidenVectorLoads - Helper function to generate a set of
+ /// loads to load a vector with a resulting wider type. It takes
+ /// LdChain: list of chains for the load to be generated.
+ /// Ld: load to widen
+ SDValue GenWidenVectorLoads(SmallVector<SDValue, 16>& LdChain,
+ LoadSDNode *LD);
+
+ /// GenWidenVectorExtLoads - Helper function to generate a set of extension
+ /// loads to load a ector with a resulting wider type. It takes
+ /// LdChain: list of chains for the load to be generated.
+ /// Ld: load to widen
+ /// ExtType: extension element type
+ SDValue GenWidenVectorExtLoads(SmallVector<SDValue, 16>& LdChain,
+ LoadSDNode *LD, ISD::LoadExtType ExtType);
+
+ /// Helper genWidenVectorStores - Helper function to generate a set of
+ /// stores to store a widen vector into non widen memory
+ /// StChain: list of chains for the stores we have generated
+ /// ST: store of a widen value
+ void GenWidenVectorStores(SmallVector<SDValue, 16>& StChain, StoreSDNode *ST);
+
+ /// Helper genWidenVectorTruncStores - Helper function to generate a set of
+ /// stores to store a truncate widen vector into non widen memory
+ /// StChain: list of chains for the stores we have generated
+ /// ST: store of a widen value
+ void GenWidenVectorTruncStores(SmallVector<SDValue, 16>& StChain,
+ StoreSDNode *ST);
+
+ /// Modifies a vector input (widen or narrows) to a vector of NVT. The
+ /// input vector must have the same element type as NVT.
+ SDValue ModifyToType(SDValue InOp, EVT WidenVT);
+
//===--------------------------------------------------------------------===//
// Generic Splitting: LegalizeTypesGeneric.cpp
/// 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);
+ void GetSplitDestVTs(EVT InVT, EVT &LoVT, EVT &HiVT);
+
+ /// GetPairElements - Use ISD::EXTRACT_ELEMENT nodes to extract the low and
+ /// high parts of the given value.
+ void GetPairElements(SDValue Pair, SDValue &Lo, SDValue &Hi);
// Generic Result Splitting.
void SplitRes_MERGE_VALUES(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);
-
+ SDValue ExpandOp_BIT_CONVERT (SDNode *N);
+ SDValue ExpandOp_BUILD_VECTOR (SDNode *N);
+ SDValue ExpandOp_EXTRACT_ELEMENT (SDNode *N);
+ SDValue ExpandOp_INSERT_VECTOR_ELT(SDNode *N);
+ SDValue ExpandOp_SCALAR_TO_VECTOR (SDNode *N);
+ SDValue ExpandOp_NormalStore (SDNode *N, unsigned OpNo);
};
} // end namespace llvm.
projects / oota-llvm.git / blobdiff