mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-08-01 17:29:33 +00:00
8d56a6f4d8
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@53603 91177308-0d34-0410-b5e6-96231b3b80d8
513 lines
22 KiB
C++
513 lines
22 KiB
C++
//===-- LegalizeTypes.h - Definition of the DAG Type Legalizer class ------===//
|
|
//
|
|
// 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 DAGTypeLegalizer class. This is a private interface
|
|
// shared between the code that implements the SelectionDAG::LegalizeTypes
|
|
// method.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef SELECTIONDAG_LEGALIZETYPES_H
|
|
#define SELECTIONDAG_LEGALIZETYPES_H
|
|
|
|
#define DEBUG_TYPE "legalize-types"
|
|
#include "llvm/CodeGen/SelectionDAG.h"
|
|
#include "llvm/Target/TargetLowering.h"
|
|
#include "llvm/ADT/DenseMap.h"
|
|
#include "llvm/Support/Compiler.h"
|
|
#include "llvm/Support/Debug.h"
|
|
|
|
namespace llvm {
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
/// 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
|
|
// about the state of the node. The enum has all the values.
|
|
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.
|
|
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 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)) {
|
|
default:
|
|
assert(false && "Unknown legalize action!");
|
|
case TargetLowering::Legal:
|
|
return Legal;
|
|
case TargetLowering::Promote:
|
|
return PromoteInteger;
|
|
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 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;
|
|
}
|
|
|
|
/// PromotedIntegers - For integer nodes that are below legal width, this map
|
|
/// indicates what promoted value to use.
|
|
DenseMap<SDOperand, SDOperand> PromotedIntegers;
|
|
|
|
/// ExpandedIntegers - For integer nodes that need to be expanded this map
|
|
/// indicates which operands are the expanded version of the input.
|
|
DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedIntegers;
|
|
|
|
/// SoftenedFloats - For floating point nodes converted to integers of
|
|
/// the same size, this map indicates the converted value to use.
|
|
DenseMap<SDOperand, SDOperand> SoftenedFloats;
|
|
|
|
/// ExpandedFloats - For float nodes that need to be expanded this map
|
|
/// indicates which operands are the expanded version of the input.
|
|
DenseMap<SDOperand, std::pair<SDOperand, SDOperand> > ExpandedFloats;
|
|
|
|
/// ScalarizedVectors - For nodes that are <1 x ty>, this map indicates the
|
|
/// scalar value of type 'ty' to use.
|
|
DenseMap<SDOperand, SDOperand> ScalarizedVectors;
|
|
|
|
/// 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> > SplitVectors;
|
|
|
|
/// ReplacedNodes - For nodes that have been replaced with another,
|
|
/// indicates the replacement node to use.
|
|
DenseMap<SDOperand, SDOperand> ReplacedNodes;
|
|
|
|
/// 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();
|
|
|
|
/// 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);
|
|
}
|
|
|
|
void NoteDeletion(SDNode *Old, SDNode *New) {
|
|
ExpungeNode(Old);
|
|
ExpungeNode(New);
|
|
for (unsigned i = 0, e = Old->getNumValues(); i != e; ++i)
|
|
ReplacedNodes[SDOperand(Old, i)] = SDOperand(New, i);
|
|
}
|
|
|
|
private:
|
|
void AnalyzeNewNode(SDNode *&N);
|
|
|
|
void ReplaceValueWith(SDOperand From, SDOperand To);
|
|
void ReplaceNodeWith(SDNode *From, SDNode *To);
|
|
|
|
void RemapNode(SDOperand &N);
|
|
void ExpungeNode(SDNode *N);
|
|
|
|
// Common routines.
|
|
SDOperand CreateStackStoreLoad(SDOperand Op, MVT DestVT);
|
|
SDOperand MakeLibCall(RTLIB::Libcall LC, MVT RetVT,
|
|
const SDOperand *Ops, unsigned NumOps, bool isSigned);
|
|
|
|
SDOperand BitConvertToInteger(SDOperand Op);
|
|
SDOperand JoinIntegers(SDOperand Lo, SDOperand Hi);
|
|
void SplitInteger(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitInteger(SDOperand Op, MVT LoVT, MVT HiVT,
|
|
SDOperand &Lo, SDOperand &Hi);
|
|
|
|
SDOperand GetVectorElementPointer(SDOperand VecPtr, MVT EltVT,
|
|
SDOperand Index);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Integer Promotion Support: LegalizeIntegerTypes.cpp
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
SDOperand GetPromotedInteger(SDOperand Op) {
|
|
SDOperand &PromotedOp = PromotedIntegers[Op];
|
|
RemapNode(PromotedOp);
|
|
assert(PromotedOp.Val && "Operand wasn't promoted?");
|
|
return PromotedOp;
|
|
}
|
|
void SetPromotedInteger(SDOperand Op, SDOperand Result);
|
|
|
|
/// ZExtPromotedInteger - Get a promoted operand and zero extend it to the
|
|
/// final size.
|
|
SDOperand ZExtPromotedInteger(SDOperand Op) {
|
|
MVT OldVT = Op.getValueType();
|
|
Op = GetPromotedInteger(Op);
|
|
return DAG.getZeroExtendInReg(Op, OldVT);
|
|
}
|
|
|
|
// Integer Result Promotion.
|
|
void PromoteIntegerResult(SDNode *N, unsigned ResNo);
|
|
SDOperand PromoteIntRes_BIT_CONVERT(SDNode *N);
|
|
SDOperand PromoteIntRes_BUILD_PAIR(SDNode *N);
|
|
SDOperand PromoteIntRes_Constant(SDNode *N);
|
|
SDOperand PromoteIntRes_CTLZ(SDNode *N);
|
|
SDOperand PromoteIntRes_CTPOP(SDNode *N);
|
|
SDOperand PromoteIntRes_CTTZ(SDNode *N);
|
|
SDOperand PromoteIntRes_EXTRACT_VECTOR_ELT(SDNode *N);
|
|
SDOperand PromoteIntRes_FP_TO_XINT(SDNode *N);
|
|
SDOperand PromoteIntRes_INT_EXTEND(SDNode *N);
|
|
SDOperand PromoteIntRes_LOAD(LoadSDNode *N);
|
|
SDOperand PromoteIntRes_SDIV(SDNode *N);
|
|
SDOperand PromoteIntRes_SELECT (SDNode *N);
|
|
SDOperand PromoteIntRes_SELECT_CC(SDNode *N);
|
|
SDOperand PromoteIntRes_SETCC(SDNode *N);
|
|
SDOperand PromoteIntRes_SHL(SDNode *N);
|
|
SDOperand PromoteIntRes_SimpleIntBinOp(SDNode *N);
|
|
SDOperand PromoteIntRes_SIGN_EXTEND_INREG(SDNode *N);
|
|
SDOperand PromoteIntRes_SRA(SDNode *N);
|
|
SDOperand PromoteIntRes_SRL(SDNode *N);
|
|
SDOperand PromoteIntRes_TRUNCATE(SDNode *N);
|
|
SDOperand PromoteIntRes_UDIV(SDNode *N);
|
|
SDOperand PromoteIntRes_UNDEF(SDNode *N);
|
|
SDOperand PromoteIntRes_VAARG(SDNode *N);
|
|
|
|
// Integer Operand Promotion.
|
|
bool PromoteIntegerOperand(SDNode *N, unsigned OperandNo);
|
|
SDOperand PromoteIntOp_ANY_EXTEND(SDNode *N);
|
|
SDOperand PromoteIntOp_BUILD_PAIR(SDNode *N);
|
|
SDOperand PromoteIntOp_BR_CC(SDNode *N, unsigned OpNo);
|
|
SDOperand PromoteIntOp_BRCOND(SDNode *N, unsigned OpNo);
|
|
SDOperand PromoteIntOp_BUILD_VECTOR(SDNode *N);
|
|
SDOperand PromoteIntOp_FP_EXTEND(SDNode *N);
|
|
SDOperand PromoteIntOp_FP_ROUND(SDNode *N);
|
|
SDOperand PromoteIntOp_INT_TO_FP(SDNode *N);
|
|
SDOperand PromoteIntOp_INSERT_VECTOR_ELT(SDNode *N, unsigned OpNo);
|
|
SDOperand PromoteIntOp_MEMBARRIER(SDNode *N);
|
|
SDOperand PromoteIntOp_SELECT(SDNode *N, unsigned OpNo);
|
|
SDOperand PromoteIntOp_SELECT_CC(SDNode *N, unsigned OpNo);
|
|
SDOperand PromoteIntOp_SETCC(SDNode *N, unsigned OpNo);
|
|
SDOperand PromoteIntOp_SIGN_EXTEND(SDNode *N);
|
|
SDOperand PromoteIntOp_STORE(StoreSDNode *N, unsigned OpNo);
|
|
SDOperand PromoteIntOp_TRUNCATE(SDNode *N);
|
|
SDOperand PromoteIntOp_ZERO_EXTEND(SDNode *N);
|
|
|
|
void PromoteSetCCOperands(SDOperand &LHS,SDOperand &RHS, ISD::CondCode Code);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Integer Expansion Support: LegalizeIntegerTypes.cpp
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
void GetExpandedInteger(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
|
|
void SetExpandedInteger(SDOperand Op, SDOperand Lo, SDOperand Hi);
|
|
|
|
// Integer Result Expansion.
|
|
void ExpandIntegerResult(SDNode *N, unsigned ResNo);
|
|
void ExpandIntRes_ANY_EXTEND (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_AssertZext (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_Constant (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_CTLZ (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_CTPOP (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_CTTZ (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_LOAD (LoadSDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_SIGN_EXTEND (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_SIGN_EXTEND_INREG (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_TRUNCATE (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_ZERO_EXTEND (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_FP_TO_SINT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_FP_TO_UINT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
|
|
void ExpandIntRes_Logical (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_ADDSUB (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_ADDSUBC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_ADDSUBE (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_BSWAP (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_MUL (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_SDIV (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_SREM (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_UDIV (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_UREM (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandIntRes_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);
|
|
|
|
// Integer Operand Expansion.
|
|
bool ExpandIntegerOperand(SDNode *N, unsigned OperandNo);
|
|
SDOperand ExpandIntOp_BIT_CONVERT(SDNode *N);
|
|
SDOperand ExpandIntOp_BR_CC(SDNode *N);
|
|
SDOperand ExpandIntOp_BUILD_VECTOR(SDNode *N);
|
|
SDOperand ExpandIntOp_EXTRACT_ELEMENT(SDNode *N);
|
|
SDOperand ExpandIntOp_SELECT_CC(SDNode *N);
|
|
SDOperand ExpandIntOp_SETCC(SDNode *N);
|
|
SDOperand ExpandIntOp_SINT_TO_FP(SDNode *N);
|
|
SDOperand ExpandIntOp_STORE(StoreSDNode *N, unsigned OpNo);
|
|
SDOperand ExpandIntOp_TRUNCATE(SDNode *N);
|
|
SDOperand ExpandIntOp_UINT_TO_FP(SDNode *N);
|
|
|
|
void IntegerExpandSetCCOperands(SDOperand &NewLHS, SDOperand &NewRHS,
|
|
ISD::CondCode &CCCode);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Float to Integer Conversion Support: LegalizeFloatTypes.cpp
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
SDOperand GetSoftenedFloat(SDOperand Op) {
|
|
SDOperand &SoftenedOp = SoftenedFloats[Op];
|
|
RemapNode(SoftenedOp);
|
|
assert(SoftenedOp.Val && "Operand wasn't converted to integer?");
|
|
return SoftenedOp;
|
|
}
|
|
void SetSoftenedFloat(SDOperand Op, SDOperand Result);
|
|
|
|
// Result Float to Integer Conversion.
|
|
void SoftenFloatResult(SDNode *N, unsigned OpNo);
|
|
SDOperand SoftenFloatRes_BIT_CONVERT(SDNode *N);
|
|
SDOperand SoftenFloatRes_BUILD_PAIR(SDNode *N);
|
|
SDOperand SoftenFloatRes_ConstantFP(ConstantFPSDNode *N);
|
|
SDOperand SoftenFloatRes_FADD(SDNode *N);
|
|
SDOperand SoftenFloatRes_FCOPYSIGN(SDNode *N);
|
|
SDOperand SoftenFloatRes_FMUL(SDNode *N);
|
|
SDOperand SoftenFloatRes_FP_EXTEND(SDNode *N);
|
|
SDOperand SoftenFloatRes_FP_ROUND(SDNode *N);
|
|
SDOperand SoftenFloatRes_FPOWI(SDNode *N);
|
|
SDOperand SoftenFloatRes_FSUB(SDNode *N);
|
|
SDOperand SoftenFloatRes_LOAD(SDNode *N);
|
|
SDOperand SoftenFloatRes_SELECT(SDNode *N);
|
|
SDOperand SoftenFloatRes_SELECT_CC(SDNode *N);
|
|
SDOperand SoftenFloatRes_SINT_TO_FP(SDNode *N);
|
|
SDOperand SoftenFloatRes_UINT_TO_FP(SDNode *N);
|
|
|
|
// Operand Float to Integer Conversion.
|
|
bool SoftenFloatOperand(SDNode *N, unsigned OpNo);
|
|
SDOperand SoftenFloatOp_BIT_CONVERT(SDNode *N);
|
|
SDOperand SoftenFloatOp_BR_CC(SDNode *N);
|
|
SDOperand SoftenFloatOp_FP_TO_SINT(SDNode *N);
|
|
SDOperand SoftenFloatOp_FP_TO_UINT(SDNode *N);
|
|
SDOperand SoftenFloatOp_SELECT_CC(SDNode *N);
|
|
SDOperand SoftenFloatOp_SETCC(SDNode *N);
|
|
SDOperand SoftenFloatOp_STORE(SDNode *N, unsigned OpNo);
|
|
|
|
void SoftenSetCCOperands(SDOperand &NewLHS, SDOperand &NewRHS,
|
|
ISD::CondCode &CCCode);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Float Expansion Support: LegalizeFloatTypes.cpp
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
void GetExpandedFloat(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
|
|
void SetExpandedFloat(SDOperand Op, SDOperand Lo, SDOperand Hi);
|
|
|
|
// Float Result Expansion.
|
|
void ExpandFloatResult(SDNode *N, unsigned ResNo);
|
|
void ExpandFloatRes_ConstantFP(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandFloatRes_FADD (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandFloatRes_FDIV (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandFloatRes_FMUL (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandFloatRes_FSUB (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandFloatRes_LOAD (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandFloatRes_XINT_TO_FP(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
|
|
// Float Operand Expansion.
|
|
bool ExpandFloatOperand(SDNode *N, unsigned OperandNo);
|
|
SDOperand ExpandFloatOp_BR_CC(SDNode *N);
|
|
SDOperand ExpandFloatOp_FP_ROUND(SDNode *N);
|
|
SDOperand ExpandFloatOp_FP_TO_SINT(SDNode *N);
|
|
SDOperand ExpandFloatOp_FP_TO_UINT(SDNode *N);
|
|
SDOperand ExpandFloatOp_SELECT_CC(SDNode *N);
|
|
SDOperand ExpandFloatOp_SETCC(SDNode *N);
|
|
SDOperand ExpandFloatOp_STORE(SDNode *N, unsigned OpNo);
|
|
|
|
void FloatExpandSetCCOperands(SDOperand &NewLHS, SDOperand &NewRHS,
|
|
ISD::CondCode &CCCode);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Scalarization Support: LegalizeVectorTypes.cpp
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
SDOperand GetScalarizedVector(SDOperand Op) {
|
|
SDOperand &ScalarizedOp = ScalarizedVectors[Op];
|
|
RemapNode(ScalarizedOp);
|
|
assert(ScalarizedOp.Val && "Operand wasn't scalarized?");
|
|
return ScalarizedOp;
|
|
}
|
|
void SetScalarizedVector(SDOperand Op, SDOperand Result);
|
|
|
|
// Vector Result Scalarization: <1 x ty> -> ty.
|
|
void ScalarizeVectorResult(SDNode *N, unsigned OpNo);
|
|
SDOperand ScalarizeVecRes_BinOp(SDNode *N);
|
|
SDOperand ScalarizeVecRes_UnaryOp(SDNode *N);
|
|
|
|
SDOperand ScalarizeVecRes_BIT_CONVERT(SDNode *N);
|
|
SDOperand ScalarizeVecRes_FPOWI(SDNode *N);
|
|
SDOperand ScalarizeVecRes_INSERT_VECTOR_ELT(SDNode *N);
|
|
SDOperand ScalarizeVecRes_LOAD(LoadSDNode *N);
|
|
SDOperand ScalarizeVecRes_SELECT(SDNode *N);
|
|
SDOperand ScalarizeVecRes_UNDEF(SDNode *N);
|
|
SDOperand ScalarizeVecRes_VECTOR_SHUFFLE(SDNode *N);
|
|
|
|
// Vector Operand Scalarization: <1 x ty> -> ty.
|
|
bool ScalarizeVectorOperand(SDNode *N, unsigned OpNo);
|
|
SDOperand ScalarizeVecOp_BIT_CONVERT(SDNode *N);
|
|
SDOperand ScalarizeVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
|
|
SDOperand ScalarizeVecOp_STORE(StoreSDNode *N, unsigned OpNo);
|
|
|
|
//===--------------------------------------------------------------------===//
|
|
// Vector Splitting Support: LegalizeVectorTypes.cpp
|
|
//===--------------------------------------------------------------------===//
|
|
|
|
void GetSplitVector(SDOperand Op, SDOperand &Lo, SDOperand &Hi);
|
|
void SetSplitVector(SDOperand Op, SDOperand Lo, SDOperand Hi);
|
|
|
|
// Vector Result Splitting: <128 x ty> -> 2 x <64 x ty>.
|
|
void SplitVectorResult(SDNode *N, unsigned OpNo);
|
|
|
|
void SplitVecRes_UNDEF(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_LOAD(LoadSDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_BUILD_PAIR(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_INSERT_VECTOR_ELT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_VECTOR_SHUFFLE(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
|
|
void SplitVecRes_BUILD_VECTOR(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_CONCAT_VECTORS(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_BIT_CONVERT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_UnOp(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_BinOp(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitVecRes_FPOWI(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
|
|
// Vector Operand Splitting: <128 x ty> -> 2 x <64 x ty>.
|
|
bool SplitVectorOperand(SDNode *N, unsigned OpNo);
|
|
|
|
SDOperand SplitVecOp_BIT_CONVERT(SDNode *N);
|
|
SDOperand SplitVecOp_EXTRACT_SUBVECTOR(SDNode *N);
|
|
SDOperand SplitVecOp_EXTRACT_VECTOR_ELT(SDNode *N);
|
|
SDOperand SplitVecOp_STORE(StoreSDNode *N, unsigned OpNo);
|
|
SDOperand 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(SDOperand Op, SDOperand &Lo, SDOperand &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, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitRes_SELECT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitRes_SELECT_CC (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void SplitRes_UNDEF (SDNode *N, SDOperand &Lo, SDOperand &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(SDOperand Op, SDOperand &Lo, SDOperand &Hi) {
|
|
if (Op.getValueType().isInteger())
|
|
GetExpandedInteger(Op, Lo, Hi);
|
|
else
|
|
GetExpandedFloat(Op, Lo, Hi);
|
|
}
|
|
|
|
// Generic Result Expansion.
|
|
void ExpandRes_BIT_CONVERT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandRes_BUILD_PAIR (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandRes_EXTRACT_ELEMENT (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandRes_EXTRACT_VECTOR_ELT(SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
void ExpandRes_NormalLoad (SDNode *N, SDOperand &Lo, SDOperand &Hi);
|
|
|
|
// Generic Operand Expansion.
|
|
SDOperand ExpandOp_BIT_CONVERT (SDNode *N);
|
|
SDOperand ExpandOp_BUILD_VECTOR (SDNode *N);
|
|
SDOperand ExpandOp_EXTRACT_ELEMENT(SDNode *N);
|
|
SDOperand ExpandOp_NormalStore (SDNode *N, unsigned OpNo);
|
|
|
|
};
|
|
|
|
} // end namespace llvm.
|
|
|
|
#endif
|