// This implements the SelectionDAG class.
//
//===----------------------------------------------------------------------===//
-
#include "llvm/CodeGen/SelectionDAG.h"
#include "llvm/Constants.h"
+#include "llvm/Analysis/ValueTracking.h"
#include "llvm/GlobalAlias.h"
#include "llvm/GlobalVariable.h"
#include "llvm/Intrinsics.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Assembly/Writer.h"
+#include "llvm/CallingConv.h"
#include "llvm/CodeGen/MachineBasicBlock.h"
#include "llvm/CodeGen/MachineConstantPool.h"
#include "llvm/CodeGen/MachineFrameInfo.h"
/// makeVTList - Return an instance of the SDVTList struct initialized with the
/// specified members.
-static SDVTList makeVTList(const MVT::ValueType *VTs, unsigned NumVTs) {
+static SDVTList makeVTList(const MVT *VTs, unsigned NumVTs) {
SDVTList Res = {VTs, NumVTs};
return Res;
}
-static const fltSemantics *MVTToAPFloatSemantics(MVT::ValueType VT) {
- switch (VT) {
+static const fltSemantics *MVTToAPFloatSemantics(MVT VT) {
+ switch (VT.getSimpleVT()) {
default: assert(0 && "Unknown FP format");
case MVT::f32: return &APFloat::IEEEsingle;
case MVT::f64: return &APFloat::IEEEdouble;
return Value.bitwiseIsEqual(V);
}
-bool ConstantFPSDNode::isValueValidForType(MVT::ValueType VT,
+bool ConstantFPSDNode::isValueValidForType(MVT VT,
const APFloat& Val) {
- assert(MVT::isFloatingPoint(VT) && "Can only convert between FP types");
-
- // Anything can be extended to ppc long double.
- if (VT == MVT::ppcf128)
- return true;
+ assert(VT.isFloatingPoint() && "Can only convert between FP types");
- // PPC long double cannot be shrunk to anything though.
- if (&Val.getSemantics() == &APFloat::PPCDoubleDouble)
+ // PPC long double cannot be converted to any other type.
+ if (VT == MVT::ppcf128 ||
+ &Val.getSemantics() == &APFloat::PPCDoubleDouble)
return false;
// convert modifies in place, so make a copy.
// Do not accept build_vectors that aren't all constants or which have non-~0
// elements.
- SDOperand NotZero = N->getOperand(i);
+ SDValue NotZero = N->getOperand(i);
if (isa<ConstantSDNode>(NotZero)) {
if (!cast<ConstantSDNode>(NotZero)->isAllOnesValue())
return false;
// Do not accept build_vectors that aren't all constants or which have non-~0
// elements.
- SDOperand Zero = N->getOperand(i);
+ SDValue Zero = N->getOperand(i);
if (isa<ConstantSDNode>(Zero)) {
if (!cast<ConstantSDNode>(Zero)->isNullValue())
return false;
return false;
unsigned NumElems = N->getNumOperands();
for (unsigned i = 1; i < NumElems; ++i) {
- SDOperand V = N->getOperand(i);
+ SDValue V = N->getOperand(i);
if (V.getOpcode() != ISD::UNDEF)
return false;
}
/// isDebugLabel - Return true if the specified node represents a debug
-/// label (i.e. ISD::LABEL or TargetInstrInfo::LABEL node and third operand
-/// is 0).
+/// label (i.e. ISD::DBG_LABEL or TargetInstrInfo::DBG_LABEL node).
bool ISD::isDebugLabel(const SDNode *N) {
- SDOperand Zero;
- if (N->getOpcode() == ISD::LABEL)
- Zero = N->getOperand(2);
- else if (N->isTargetOpcode() &&
- N->getTargetOpcode() == TargetInstrInfo::LABEL)
- // Chain moved to last operand.
- Zero = N->getOperand(1);
- else
- return false;
- return isa<ConstantSDNode>(Zero) && cast<ConstantSDNode>(Zero)->isNullValue();
+ SDValue Zero;
+ if (N->getOpcode() == ISD::DBG_LABEL)
+ return true;
+ if (N->isMachineOpcode() &&
+ N->getMachineOpcode() == TargetInstrInfo::DBG_LABEL)
+ return true;
+ return false;
}
/// getSetCCSwappedOperands - Return the operation corresponding to (Y op X)
switch (Result) {
default: break;
case ISD::SETUO : Result = ISD::SETFALSE; break; // SETUGT & SETULT
+ case ISD::SETOEQ: // SETEQ & SETU[LG]E
case ISD::SETUEQ: Result = ISD::SETEQ ; break; // SETUGE & SETULE
case ISD::SETOLT: Result = ISD::SETULT ; break; // SETULT & SETNE
case ISD::SETOGT: Result = ISD::SETUGT ; break; // SETUGT & SETNE
/// AddNodeIDValueTypes - Value type lists are intern'd so we can represent them
/// solely with their pointer.
-void AddNodeIDValueTypes(FoldingSetNodeID &ID, SDVTList VTList) {
+static void AddNodeIDValueTypes(FoldingSetNodeID &ID, SDVTList VTList) {
ID.AddPointer(VTList.VTs);
}
/// AddNodeIDOperands - Various routines for adding operands to the NodeID data.
///
static void AddNodeIDOperands(FoldingSetNodeID &ID,
- const SDOperand *Ops, unsigned NumOps) {
+ const SDValue *Ops, unsigned NumOps) {
for (; NumOps; --NumOps, ++Ops) {
ID.AddPointer(Ops->Val);
ID.AddInteger(Ops->ResNo);
}
}
+/// AddNodeIDOperands - Various routines for adding operands to the NodeID data.
+///
+static void AddNodeIDOperands(FoldingSetNodeID &ID,
+ const SDUse *Ops, unsigned NumOps) {
+ for (; NumOps; --NumOps, ++Ops) {
+ ID.AddPointer(Ops->getVal());
+ ID.AddInteger(Ops->getSDValue().ResNo);
+ }
+}
+
static void AddNodeIDNode(FoldingSetNodeID &ID,
unsigned short OpC, SDVTList VTList,
- const SDOperand *OpList, unsigned N) {
+ const SDValue *OpList, unsigned N) {
AddNodeIDOpcode(ID, OpC);
AddNodeIDValueTypes(ID, VTList);
AddNodeIDOperands(ID, OpList, N);
}
+
/// AddNodeIDNode - Generic routine for adding a nodes info to the NodeID
/// data.
static void AddNodeIDNode(FoldingSetNodeID &ID, SDNode *N) {
case ISD::Register:
ID.AddInteger(cast<RegisterSDNode>(N)->getReg());
break;
+ case ISD::DBG_STOPPOINT: {
+ const DbgStopPointSDNode *DSP = cast<DbgStopPointSDNode>(N);
+ ID.AddInteger(DSP->getLine());
+ ID.AddInteger(DSP->getColumn());
+ ID.AddPointer(DSP->getCompileUnit());
+ break;
+ }
case ISD::SRCVALUE:
ID.AddPointer(cast<SrcValueSDNode>(N)->getValue());
break;
case ISD::MEMOPERAND: {
- const MemOperand &MO = cast<MemOperandSDNode>(N)->MO;
+ const MachineMemOperand &MO = cast<MemOperandSDNode>(N)->MO;
ID.AddPointer(MO.getValue());
ID.AddInteger(MO.getFlags());
ID.AddInteger(MO.getOffset());
LoadSDNode *LD = cast<LoadSDNode>(N);
ID.AddInteger(LD->getAddressingMode());
ID.AddInteger(LD->getExtensionType());
- ID.AddInteger((unsigned int)(LD->getMemoryVT()));
+ ID.AddInteger(LD->getMemoryVT().getRawBits());
ID.AddInteger(LD->getAlignment());
ID.AddInteger(LD->isVolatile());
break;
StoreSDNode *ST = cast<StoreSDNode>(N);
ID.AddInteger(ST->getAddressingMode());
ID.AddInteger(ST->isTruncatingStore());
- ID.AddInteger((unsigned int)(ST->getMemoryVT()));
+ ID.AddInteger(ST->getMemoryVT().getRawBits());
ID.AddInteger(ST->getAlignment());
ID.AddInteger(ST->isVolatile());
break;
}
+ case ISD::ATOMIC_CMP_SWAP:
+ case ISD::ATOMIC_LOAD_ADD:
+ case ISD::ATOMIC_SWAP:
+ case ISD::ATOMIC_LOAD_SUB:
+ case ISD::ATOMIC_LOAD_AND:
+ case ISD::ATOMIC_LOAD_OR:
+ case ISD::ATOMIC_LOAD_XOR:
+ case ISD::ATOMIC_LOAD_NAND:
+ case ISD::ATOMIC_LOAD_MIN:
+ case ISD::ATOMIC_LOAD_MAX:
+ case ISD::ATOMIC_LOAD_UMIN:
+ case ISD::ATOMIC_LOAD_UMAX: {
+ AtomicSDNode *AT = cast<AtomicSDNode>(N);
+ ID.AddInteger(AT->getAlignment());
+ ID.AddInteger(AT->isVolatile());
+ break;
}
+ } // end switch (N->getOpcode())
}
//===----------------------------------------------------------------------===//
// SelectionDAG Class
//===----------------------------------------------------------------------===//
+inline alist_traits<SDNode, LargestSDNode>::AllocatorType &
+SelectionDAG::getAllocator() {
+ return AllNodes.getTraits().Allocator;
+}
+
/// RemoveDeadNodes - This method deletes all unreachable nodes in the
/// SelectionDAG.
void SelectionDAG::RemoveDeadNodes() {
if (I->use_empty())
DeadNodes.push_back(I);
- // Process the worklist, deleting the nodes and adding their uses to the
- // worklist.
- while (!DeadNodes.empty()) {
- SDNode *N = DeadNodes.back();
- DeadNodes.pop_back();
-
- // Take the node out of the appropriate CSE map.
- RemoveNodeFromCSEMaps(N);
-
- // Next, brutally remove the operand list. This is safe to do, as there are
- // no cycles in the graph.
- for (SDNode::op_iterator I = N->op_begin(), E = N->op_end(); I != E; ++I) {
- SDNode *Operand = I->Val;
- Operand->removeUser(N);
-
- // Now that we removed this operand, see if there are no uses of it left.
- if (Operand->use_empty())
- DeadNodes.push_back(Operand);
- }
- if (N->OperandsNeedDelete)
- delete[] N->OperandList;
- N->OperandList = 0;
- N->NumOperands = 0;
-
- // Finally, remove N itself.
- AllNodes.erase(N);
- }
+ RemoveDeadNodes(DeadNodes);
// If the root changed (e.g. it was a dead load, update the root).
setRoot(Dummy.getValue());
}
-void SelectionDAG::RemoveDeadNode(SDNode *N, DAGUpdateListener *UpdateListener){
- SmallVector<SDNode*, 16> DeadNodes;
- DeadNodes.push_back(N);
+/// RemoveDeadNodes - This method deletes the unreachable nodes in the
+/// given list, and any nodes that become unreachable as a result.
+void SelectionDAG::RemoveDeadNodes(SmallVectorImpl<SDNode *> &DeadNodes,
+ DAGUpdateListener *UpdateListener) {
// Process the worklist, deleting the nodes and adding their uses to the
// worklist.
DeadNodes.pop_back();
if (UpdateListener)
- UpdateListener->NodeDeleted(N);
+ UpdateListener->NodeDeleted(N, 0);
// Take the node out of the appropriate CSE map.
RemoveNodeFromCSEMaps(N);
// Next, brutally remove the operand list. This is safe to do, as there are
// no cycles in the graph.
for (SDNode::op_iterator I = N->op_begin(), E = N->op_end(); I != E; ++I) {
- SDNode *Operand = I->Val;
- Operand->removeUser(N);
+ SDNode *Operand = I->getVal();
+ Operand->removeUser(std::distance(N->op_begin(), I), N);
// Now that we removed this operand, see if there are no uses of it left.
if (Operand->use_empty())
DeadNodes.push_back(Operand);
}
- if (N->OperandsNeedDelete)
+ if (N->OperandsNeedDelete) {
delete[] N->OperandList;
+ }
N->OperandList = 0;
N->NumOperands = 0;
}
}
+void SelectionDAG::RemoveDeadNode(SDNode *N, DAGUpdateListener *UpdateListener){
+ SmallVector<SDNode*, 16> DeadNodes(1, N);
+ RemoveDeadNodes(DeadNodes, UpdateListener);
+}
+
void SelectionDAG::DeleteNode(SDNode *N) {
assert(N->use_empty() && "Cannot delete a node that is not dead!");
void SelectionDAG::DeleteNodeNotInCSEMaps(SDNode *N) {
- // Remove it from the AllNodes list.
- AllNodes.remove(N);
-
// Drop all of the operands and decrement used nodes use counts.
for (SDNode::op_iterator I = N->op_begin(), E = N->op_end(); I != E; ++I)
- I->Val->removeUser(N);
- if (N->OperandsNeedDelete)
+ I->getVal()->removeUser(std::distance(N->op_begin(), I), N);
+ if (N->OperandsNeedDelete) {
delete[] N->OperandList;
+ }
N->OperandList = 0;
N->NumOperands = 0;
- delete N;
+ AllNodes.erase(N);
}
/// RemoveNodeFromCSEMaps - Take the specified node out of the CSE map that
bool Erased = false;
switch (N->getOpcode()) {
case ISD::HANDLENODE: return; // noop.
- case ISD::STRING:
- Erased = StringNodes.erase(cast<StringSDNode>(N)->getValue());
- break;
case ISD::CONDCODE:
assert(CondCodeNodes[cast<CondCodeSDNode>(N)->get()] &&
"Cond code doesn't exist!");
TargetExternalSymbols.erase(cast<ExternalSymbolSDNode>(N)->getSymbol());
break;
case ISD::VALUETYPE: {
- MVT::ValueType VT = cast<VTSDNode>(N)->getVT();
- if (MVT::isExtendedVT(VT)) {
+ MVT VT = cast<VTSDNode>(N)->getVT();
+ if (VT.isExtended()) {
Erased = ExtendedValueTypeNodes.erase(VT);
} else {
- Erased = ValueTypeNodes[VT] != 0;
- ValueTypeNodes[VT] = 0;
+ Erased = ValueTypeNodes[VT.getSimpleVT()] != 0;
+ ValueTypeNodes[VT.getSimpleVT()] = 0;
}
break;
}
// flag result (which cannot be CSE'd) or is one of the special cases that are
// not subject to CSE.
if (!Erased && N->getValueType(N->getNumValues()-1) != MVT::Flag &&
- !N->isTargetOpcode()) {
+ !N->isTargetOpcode() &&
+ N->getOpcode() != ISD::DBG_LABEL &&
+ N->getOpcode() != ISD::DBG_STOPPOINT &&
+ N->getOpcode() != ISD::EH_LABEL &&
+ N->getOpcode() != ISD::DECLARE) {
N->dump(this);
cerr << "\n";
assert(0 && "Node is not in map!");
///
SDNode *SelectionDAG::AddNonLeafNodeToCSEMaps(SDNode *N) {
assert(N->getNumOperands() && "This is a leaf node!");
- if (N->getOpcode() == ISD::HANDLENODE || N->getValueType(0) == MVT::Flag)
+
+ if (N->getValueType(0) == MVT::Flag)
+ return 0; // Never CSE anything that produces a flag.
+
+ switch (N->getOpcode()) {
+ default: break;
+ case ISD::HANDLENODE:
+ case ISD::DBG_LABEL:
+ case ISD::DBG_STOPPOINT:
+ case ISD::EH_LABEL:
+ case ISD::DECLARE:
return 0; // Never add these nodes.
+ }
// Check that remaining values produced are not flags.
for (unsigned i = 1, e = N->getNumValues(); i != e; ++i)
/// were replaced with those specified. If this node is never memoized,
/// return null, otherwise return a pointer to the slot it would take. If a
/// node already exists with these operands, the slot will be non-null.
-SDNode *SelectionDAG::FindModifiedNodeSlot(SDNode *N, SDOperand Op,
+SDNode *SelectionDAG::FindModifiedNodeSlot(SDNode *N, SDValue Op,
void *&InsertPos) {
- if (N->getOpcode() == ISD::HANDLENODE || N->getValueType(0) == MVT::Flag)
+ if (N->getValueType(0) == MVT::Flag)
+ return 0; // Never CSE anything that produces a flag.
+
+ switch (N->getOpcode()) {
+ default: break;
+ case ISD::HANDLENODE:
+ case ISD::DBG_LABEL:
+ case ISD::DBG_STOPPOINT:
+ case ISD::EH_LABEL:
return 0; // Never add these nodes.
+ }
// Check that remaining values produced are not flags.
for (unsigned i = 1, e = N->getNumValues(); i != e; ++i)
if (N->getValueType(i) == MVT::Flag)
return 0; // Never CSE anything that produces a flag.
- SDOperand Ops[] = { Op };
+ SDValue Ops[] = { Op };
FoldingSetNodeID ID;
AddNodeIDNode(ID, N->getOpcode(), N->getVTList(), Ops, 1);
return CSEMap.FindNodeOrInsertPos(ID, InsertPos);
/// return null, otherwise return a pointer to the slot it would take. If a
/// node already exists with these operands, the slot will be non-null.
SDNode *SelectionDAG::FindModifiedNodeSlot(SDNode *N,
- SDOperand Op1, SDOperand Op2,
+ SDValue Op1, SDValue Op2,
void *&InsertPos) {
if (N->getOpcode() == ISD::HANDLENODE || N->getValueType(0) == MVT::Flag)
- return 0; // Never add these nodes.
// Check that remaining values produced are not flags.
for (unsigned i = 1, e = N->getNumValues(); i != e; ++i)
if (N->getValueType(i) == MVT::Flag)
return 0; // Never CSE anything that produces a flag.
- SDOperand Ops[] = { Op1, Op2 };
+ SDValue Ops[] = { Op1, Op2 };
FoldingSetNodeID ID;
AddNodeIDNode(ID, N->getOpcode(), N->getVTList(), Ops, 2);
return CSEMap.FindNodeOrInsertPos(ID, InsertPos);
/// return null, otherwise return a pointer to the slot it would take. If a
/// node already exists with these operands, the slot will be non-null.
SDNode *SelectionDAG::FindModifiedNodeSlot(SDNode *N,
- const SDOperand *Ops,unsigned NumOps,
+ const SDValue *Ops,unsigned NumOps,
void *&InsertPos) {
- if (N->getOpcode() == ISD::HANDLENODE || N->getValueType(0) == MVT::Flag)
+ if (N->getValueType(0) == MVT::Flag)
+ return 0; // Never CSE anything that produces a flag.
+
+ switch (N->getOpcode()) {
+ default: break;
+ case ISD::HANDLENODE:
+ case ISD::DBG_LABEL:
+ case ISD::DBG_STOPPOINT:
+ case ISD::EH_LABEL:
+ case ISD::DECLARE:
return 0; // Never add these nodes.
+ }
// Check that remaining values produced are not flags.
for (unsigned i = 1, e = N->getNumValues(); i != e; ++i)
if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(N)) {
ID.AddInteger(LD->getAddressingMode());
ID.AddInteger(LD->getExtensionType());
- ID.AddInteger((unsigned int)(LD->getMemoryVT()));
+ ID.AddInteger(LD->getMemoryVT().getRawBits());
ID.AddInteger(LD->getAlignment());
ID.AddInteger(LD->isVolatile());
} else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(N)) {
ID.AddInteger(ST->getAddressingMode());
ID.AddInteger(ST->isTruncatingStore());
- ID.AddInteger((unsigned int)(ST->getMemoryVT()));
+ ID.AddInteger(ST->getMemoryVT().getRawBits());
ID.AddInteger(ST->getAlignment());
ID.AddInteger(ST->isVolatile());
}
return CSEMap.FindNodeOrInsertPos(ID, InsertPos);
}
+/// VerifyNode - Sanity check the given node. Aborts if it is invalid.
+void SelectionDAG::VerifyNode(SDNode *N) {
+ switch (N->getOpcode()) {
+ default:
+ break;
+ case ISD::BUILD_VECTOR: {
+ assert(N->getNumValues() == 1 && "Too many results for BUILD_VECTOR!");
+ assert(N->getValueType(0).isVector() && "Wrong BUILD_VECTOR return type!");
+ assert(N->getNumOperands() == N->getValueType(0).getVectorNumElements() &&
+ "Wrong number of BUILD_VECTOR operands!");
+ MVT EltVT = N->getValueType(0).getVectorElementType();
+ for (SDNode::op_iterator I = N->op_begin(), E = N->op_end(); I != E; ++I)
+ assert(I->getSDValue().getValueType() == EltVT &&
+ "Wrong BUILD_VECTOR operand type!");
+ break;
+ }
+ }
+}
+
+/// getMVTAlignment - Compute the default alignment value for the
+/// given type.
+///
+unsigned SelectionDAG::getMVTAlignment(MVT VT) const {
+ const Type *Ty = VT == MVT::iPTR ?
+ PointerType::get(Type::Int8Ty, 0) :
+ VT.getTypeForMVT();
+
+ return TLI.getTargetData()->getABITypeAlignment(Ty);
+}
SelectionDAG::~SelectionDAG() {
while (!AllNodes.empty()) {
SDNode *N = AllNodes.begin();
N->SetNextInBucket(0);
- if (N->OperandsNeedDelete)
+ if (N->OperandsNeedDelete) {
delete [] N->OperandList;
+ }
N->OperandList = 0;
N->NumOperands = 0;
AllNodes.pop_front();
}
}
-SDOperand SelectionDAG::getZeroExtendInReg(SDOperand Op, MVT::ValueType VT) {
+SDValue SelectionDAG::getZeroExtendInReg(SDValue Op, MVT VT) {
if (Op.getValueType() == VT) return Op;
APInt Imm = APInt::getLowBitsSet(Op.getValueSizeInBits(),
- MVT::getSizeInBits(VT));
+ VT.getSizeInBits());
return getNode(ISD::AND, Op.getValueType(), Op,
getConstant(Imm, Op.getValueType()));
}
-SDOperand SelectionDAG::getString(const std::string &Val) {
- StringSDNode *&N = StringNodes[Val];
- if (!N) {
- N = new StringSDNode(Val);
- AllNodes.push_back(N);
- }
- return SDOperand(N, 0);
-}
-
-SDOperand SelectionDAG::getConstant(uint64_t Val, MVT::ValueType VT, bool isT) {
- MVT::ValueType EltVT =
- MVT::isVector(VT) ? MVT::getVectorElementType(VT) : VT;
-
- return getConstant(APInt(MVT::getSizeInBits(EltVT), Val), VT, isT);
+SDValue SelectionDAG::getConstant(uint64_t Val, MVT VT, bool isT) {
+ MVT EltVT = VT.isVector() ? VT.getVectorElementType() : VT;
+ return getConstant(APInt(EltVT.getSizeInBits(), Val), VT, isT);
}
-SDOperand SelectionDAG::getConstant(const APInt &Val, MVT::ValueType VT, bool isT) {
- assert(MVT::isInteger(VT) && "Cannot create FP integer constant!");
+SDValue SelectionDAG::getConstant(const APInt &Val, MVT VT, bool isT) {
+ assert(VT.isInteger() && "Cannot create FP integer constant!");
- MVT::ValueType EltVT =
- MVT::isVector(VT) ? MVT::getVectorElementType(VT) : VT;
-
- assert(Val.getBitWidth() == MVT::getSizeInBits(EltVT) &&
+ MVT EltVT = VT.isVector() ? VT.getVectorElementType() : VT;
+ assert(Val.getBitWidth() == EltVT.getSizeInBits() &&
"APInt size does not match type size!");
unsigned Opc = isT ? ISD::TargetConstant : ISD::Constant;
void *IP = 0;
SDNode *N = NULL;
if ((N = CSEMap.FindNodeOrInsertPos(ID, IP)))
- if (!MVT::isVector(VT))
- return SDOperand(N, 0);
+ if (!VT.isVector())
+ return SDValue(N, 0);
if (!N) {
- N = new ConstantSDNode(isT, Val, EltVT);
+ N = getAllocator().Allocate<ConstantSDNode>();
+ new (N) ConstantSDNode(isT, Val, EltVT);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
}
- SDOperand Result(N, 0);
- if (MVT::isVector(VT)) {
- SmallVector<SDOperand, 8> Ops;
- Ops.assign(MVT::getVectorNumElements(VT), Result);
+ SDValue Result(N, 0);
+ if (VT.isVector()) {
+ SmallVector<SDValue, 8> Ops;
+ Ops.assign(VT.getVectorNumElements(), Result);
Result = getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size());
}
return Result;
}
-SDOperand SelectionDAG::getIntPtrConstant(uint64_t Val, bool isTarget) {
+SDValue SelectionDAG::getIntPtrConstant(uint64_t Val, bool isTarget) {
return getConstant(Val, TLI.getPointerTy(), isTarget);
}
-SDOperand SelectionDAG::getConstantFP(const APFloat& V, MVT::ValueType VT,
- bool isTarget) {
- assert(MVT::isFloatingPoint(VT) && "Cannot create integer FP constant!");
+SDValue SelectionDAG::getConstantFP(const APFloat& V, MVT VT, bool isTarget) {
+ assert(VT.isFloatingPoint() && "Cannot create integer FP constant!");
- MVT::ValueType EltVT =
- MVT::isVector(VT) ? MVT::getVectorElementType(VT) : VT;
+ MVT EltVT =
+ VT.isVector() ? VT.getVectorElementType() : VT;
// Do the map lookup using the actual bit pattern for the floating point
// value, so that we don't have problems with 0.0 comparing equal to -0.0, and
void *IP = 0;
SDNode *N = NULL;
if ((N = CSEMap.FindNodeOrInsertPos(ID, IP)))
- if (!MVT::isVector(VT))
- return SDOperand(N, 0);
+ if (!VT.isVector())
+ return SDValue(N, 0);
if (!N) {
- N = new ConstantFPSDNode(isTarget, V, EltVT);
+ N = getAllocator().Allocate<ConstantFPSDNode>();
+ new (N) ConstantFPSDNode(isTarget, V, EltVT);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
}
- SDOperand Result(N, 0);
- if (MVT::isVector(VT)) {
- SmallVector<SDOperand, 8> Ops;
- Ops.assign(MVT::getVectorNumElements(VT), Result);
+ SDValue Result(N, 0);
+ if (VT.isVector()) {
+ SmallVector<SDValue, 8> Ops;
+ Ops.assign(VT.getVectorNumElements(), Result);
Result = getNode(ISD::BUILD_VECTOR, VT, &Ops[0], Ops.size());
}
return Result;
}
-SDOperand SelectionDAG::getConstantFP(double Val, MVT::ValueType VT,
- bool isTarget) {
- MVT::ValueType EltVT =
- MVT::isVector(VT) ? MVT::getVectorElementType(VT) : VT;
+SDValue SelectionDAG::getConstantFP(double Val, MVT VT, bool isTarget) {
+ MVT EltVT =
+ VT.isVector() ? VT.getVectorElementType() : VT;
if (EltVT==MVT::f32)
return getConstantFP(APFloat((float)Val), VT, isTarget);
else
return getConstantFP(APFloat(Val), VT, isTarget);
}
-SDOperand SelectionDAG::getGlobalAddress(const GlobalValue *GV,
- MVT::ValueType VT, int Offset,
- bool isTargetGA) {
+SDValue SelectionDAG::getGlobalAddress(const GlobalValue *GV,
+ MVT VT, int Offset,
+ bool isTargetGA) {
unsigned Opc;
const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV);
if (!GVar) {
- // If GV is an alias - use aliasee for determing thread-localness
+ // If GV is an alias then use the aliasee for determining thread-localness.
if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(GV))
GVar = dyn_cast_or_null<GlobalVariable>(GA->resolveAliasedGlobal());
}
ID.AddInteger(Offset);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new GlobalAddressSDNode(isTargetGA, GV, VT, Offset);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<GlobalAddressSDNode>();
+ new (N) GlobalAddressSDNode(isTargetGA, GV, VT, Offset);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getFrameIndex(int FI, MVT::ValueType VT,
- bool isTarget) {
+SDValue SelectionDAG::getFrameIndex(int FI, MVT VT, bool isTarget) {
unsigned Opc = isTarget ? ISD::TargetFrameIndex : ISD::FrameIndex;
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opc, getVTList(VT), 0, 0);
ID.AddInteger(FI);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new FrameIndexSDNode(FI, VT, isTarget);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<FrameIndexSDNode>();
+ new (N) FrameIndexSDNode(FI, VT, isTarget);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getJumpTable(int JTI, MVT::ValueType VT, bool isTarget){
+SDValue SelectionDAG::getJumpTable(int JTI, MVT VT, bool isTarget){
unsigned Opc = isTarget ? ISD::TargetJumpTable : ISD::JumpTable;
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opc, getVTList(VT), 0, 0);
ID.AddInteger(JTI);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new JumpTableSDNode(JTI, VT, isTarget);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<JumpTableSDNode>();
+ new (N) JumpTableSDNode(JTI, VT, isTarget);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getConstantPool(Constant *C, MVT::ValueType VT,
- unsigned Alignment, int Offset,
- bool isTarget) {
+SDValue SelectionDAG::getConstantPool(Constant *C, MVT VT,
+ unsigned Alignment, int Offset,
+ bool isTarget) {
unsigned Opc = isTarget ? ISD::TargetConstantPool : ISD::ConstantPool;
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opc, getVTList(VT), 0, 0);
ID.AddPointer(C);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new ConstantPoolSDNode(isTarget, C, VT, Offset, Alignment);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<ConstantPoolSDNode>();
+ new (N) ConstantPoolSDNode(isTarget, C, VT, Offset, Alignment);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getConstantPool(MachineConstantPoolValue *C,
- MVT::ValueType VT,
- unsigned Alignment, int Offset,
- bool isTarget) {
+SDValue SelectionDAG::getConstantPool(MachineConstantPoolValue *C, MVT VT,
+ unsigned Alignment, int Offset,
+ bool isTarget) {
unsigned Opc = isTarget ? ISD::TargetConstantPool : ISD::ConstantPool;
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opc, getVTList(VT), 0, 0);
C->AddSelectionDAGCSEId(ID);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new ConstantPoolSDNode(isTarget, C, VT, Offset, Alignment);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<ConstantPoolSDNode>();
+ new (N) ConstantPoolSDNode(isTarget, C, VT, Offset, Alignment);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getBasicBlock(MachineBasicBlock *MBB) {
+SDValue SelectionDAG::getBasicBlock(MachineBasicBlock *MBB) {
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::BasicBlock, getVTList(MVT::Other), 0, 0);
ID.AddPointer(MBB);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new BasicBlockSDNode(MBB);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<BasicBlockSDNode>();
+ new (N) BasicBlockSDNode(MBB);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getArgFlags(ISD::ArgFlagsTy Flags) {
+SDValue SelectionDAG::getArgFlags(ISD::ArgFlagsTy Flags) {
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::ARG_FLAGS, getVTList(MVT::Other), 0, 0);
ID.AddInteger(Flags.getRawBits());
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new ARG_FLAGSSDNode(Flags);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<ARG_FLAGSSDNode>();
+ new (N) ARG_FLAGSSDNode(Flags);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getValueType(MVT::ValueType VT) {
- if (!MVT::isExtendedVT(VT) && (unsigned)VT >= ValueTypeNodes.size())
- ValueTypeNodes.resize(VT+1);
+SDValue SelectionDAG::getValueType(MVT VT) {
+ if (VT.isSimple() && (unsigned)VT.getSimpleVT() >= ValueTypeNodes.size())
+ ValueTypeNodes.resize(VT.getSimpleVT()+1);
- SDNode *&N = MVT::isExtendedVT(VT) ?
- ExtendedValueTypeNodes[VT] : ValueTypeNodes[VT];
+ SDNode *&N = VT.isExtended() ?
+ ExtendedValueTypeNodes[VT] : ValueTypeNodes[VT.getSimpleVT()];
- if (N) return SDOperand(N, 0);
- N = new VTSDNode(VT);
+ if (N) return SDValue(N, 0);
+ N = getAllocator().Allocate<VTSDNode>();
+ new (N) VTSDNode(VT);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getExternalSymbol(const char *Sym, MVT::ValueType VT) {
+SDValue SelectionDAG::getExternalSymbol(const char *Sym, MVT VT) {
SDNode *&N = ExternalSymbols[Sym];
- if (N) return SDOperand(N, 0);
- N = new ExternalSymbolSDNode(false, Sym, VT);
+ if (N) return SDValue(N, 0);
+ N = getAllocator().Allocate<ExternalSymbolSDNode>();
+ new (N) ExternalSymbolSDNode(false, Sym, VT);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getTargetExternalSymbol(const char *Sym,
- MVT::ValueType VT) {
+SDValue SelectionDAG::getTargetExternalSymbol(const char *Sym, MVT VT) {
SDNode *&N = TargetExternalSymbols[Sym];
- if (N) return SDOperand(N, 0);
- N = new ExternalSymbolSDNode(true, Sym, VT);
+ if (N) return SDValue(N, 0);
+ N = getAllocator().Allocate<ExternalSymbolSDNode>();
+ new (N) ExternalSymbolSDNode(true, Sym, VT);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getCondCode(ISD::CondCode Cond) {
+SDValue SelectionDAG::getCondCode(ISD::CondCode Cond) {
if ((unsigned)Cond >= CondCodeNodes.size())
CondCodeNodes.resize(Cond+1);
-
+
if (CondCodeNodes[Cond] == 0) {
- CondCodeNodes[Cond] = new CondCodeSDNode(Cond);
- AllNodes.push_back(CondCodeNodes[Cond]);
+ CondCodeSDNode *N = getAllocator().Allocate<CondCodeSDNode>();
+ new (N) CondCodeSDNode(Cond);
+ CondCodeNodes[Cond] = N;
+ AllNodes.push_back(N);
}
- return SDOperand(CondCodeNodes[Cond], 0);
+ return SDValue(CondCodeNodes[Cond], 0);
}
-SDOperand SelectionDAG::getRegister(unsigned RegNo, MVT::ValueType VT) {
+SDValue SelectionDAG::getRegister(unsigned RegNo, MVT VT) {
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::Register, getVTList(VT), 0, 0);
ID.AddInteger(RegNo);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new RegisterSDNode(RegNo, VT);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<RegisterSDNode>();
+ new (N) RegisterSDNode(RegNo, VT);
+ CSEMap.InsertNode(N, IP);
+ AllNodes.push_back(N);
+ return SDValue(N, 0);
+}
+
+SDValue SelectionDAG::getDbgStopPoint(SDValue Root,
+ unsigned Line, unsigned Col,
+ const CompileUnitDesc *CU) {
+ SDNode *N = getAllocator().Allocate<DbgStopPointSDNode>();
+ new (N) DbgStopPointSDNode(Root, Line, Col, CU);
+ AllNodes.push_back(N);
+ return SDValue(N, 0);
+}
+
+SDValue SelectionDAG::getLabel(unsigned Opcode,
+ SDValue Root,
+ unsigned LabelID) {
+ FoldingSetNodeID ID;
+ SDValue Ops[] = { Root };
+ AddNodeIDNode(ID, Opcode, getVTList(MVT::Other), &Ops[0], 1);
+ ID.AddInteger(LabelID);
+ void *IP = 0;
+ if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<LabelSDNode>();
+ new (N) LabelSDNode(Opcode, Root, LabelID);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getSrcValue(const Value *V) {
+SDValue SelectionDAG::getSrcValue(const Value *V) {
assert((!V || isa<PointerType>(V->getType())) &&
"SrcValue is not a pointer?");
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
+ return SDValue(E, 0);
- SDNode *N = new SrcValueSDNode(V);
+ SDNode *N = getAllocator().Allocate<SrcValueSDNode>();
+ new (N) SrcValueSDNode(V);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getMemOperand(const MemOperand &MO) {
+SDValue SelectionDAG::getMemOperand(const MachineMemOperand &MO) {
const Value *v = MO.getValue();
assert((!v || isa<PointerType>(v->getType())) &&
"SrcValue is not a pointer?");
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
+ return SDValue(E, 0);
- SDNode *N = new MemOperandSDNode(MO);
+ SDNode *N = getAllocator().Allocate<MemOperandSDNode>();
+ new (N) MemOperandSDNode(MO);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
/// CreateStackTemporary - Create a stack temporary, suitable for holding the
/// specified value type.
-SDOperand SelectionDAG::CreateStackTemporary(MVT::ValueType VT) {
+SDValue SelectionDAG::CreateStackTemporary(MVT VT, unsigned minAlign) {
MachineFrameInfo *FrameInfo = getMachineFunction().getFrameInfo();
- unsigned ByteSize = MVT::getSizeInBits(VT)/8;
- const Type *Ty = MVT::getTypeForValueType(VT);
- unsigned StackAlign = (unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty);
+ unsigned ByteSize = VT.getSizeInBits()/8;
+ const Type *Ty = VT.getTypeForMVT();
+ unsigned StackAlign =
+ std::max((unsigned)TLI.getTargetData()->getPrefTypeAlignment(Ty), minAlign);
+
int FrameIdx = FrameInfo->CreateStackObject(ByteSize, StackAlign);
return getFrameIndex(FrameIdx, TLI.getPointerTy());
}
-
-SDOperand SelectionDAG::FoldSetCC(MVT::ValueType VT, SDOperand N1,
- SDOperand N2, ISD::CondCode Cond) {
+SDValue SelectionDAG::FoldSetCC(MVT VT, SDValue N1,
+ SDValue N2, ISD::CondCode Cond) {
// These setcc operations always fold.
switch (Cond) {
default: break;
case ISD::SETUO:
case ISD::SETUEQ:
case ISD::SETUNE:
- assert(!MVT::isInteger(N1.getValueType()) && "Illegal setcc for integer!");
+ assert(!N1.getValueType().isInteger() && "Illegal setcc for integer!");
break;
}
if (ConstantFPSDNode *N2C = dyn_cast<ConstantFPSDNode>(N2.Val)) {
// No compile time operations on this type yet.
if (N1C->getValueType(0) == MVT::ppcf128)
- return SDOperand();
+ return SDValue();
APFloat::cmpResult R = N1C->getValueAPF().compare(N2C->getValueAPF());
switch (Cond) {
}
// Could not fold it.
- return SDOperand();
+ return SDValue();
}
/// SignBitIsZero - Return true if the sign bit of Op is known to be zero. We
/// use this predicate to simplify operations downstream.
-bool SelectionDAG::SignBitIsZero(SDOperand Op, unsigned Depth) const {
+bool SelectionDAG::SignBitIsZero(SDValue Op, unsigned Depth) const {
unsigned BitWidth = Op.getValueSizeInBits();
return MaskedValueIsZero(Op, APInt::getSignBit(BitWidth), Depth);
}
/// MaskedValueIsZero - Return true if 'V & Mask' is known to be zero. We use
/// this predicate to simplify operations downstream. Mask is known to be zero
/// for bits that V cannot have.
-bool SelectionDAG::MaskedValueIsZero(SDOperand Op, const APInt &Mask,
+bool SelectionDAG::MaskedValueIsZero(SDValue Op, const APInt &Mask,
unsigned Depth) const {
APInt KnownZero, KnownOne;
ComputeMaskedBits(Op, Mask, KnownZero, KnownOne, Depth);
/// known to be either zero or one and return them in the KnownZero/KnownOne
/// bitsets. This code only analyzes bits in Mask, in order to short-circuit
/// processing.
-void SelectionDAG::ComputeMaskedBits(SDOperand Op, const APInt &Mask,
+void SelectionDAG::ComputeMaskedBits(SDValue Op, const APInt &Mask,
APInt &KnownZero, APInt &KnownOne,
unsigned Depth) const {
unsigned BitWidth = Mask.getBitWidth();
- assert(BitWidth == MVT::getSizeInBits(Op.getValueType()) &&
+ assert(BitWidth == Op.getValueType().getSizeInBits() &&
"Mask size mismatches value type size!");
KnownZero = KnownOne = APInt(BitWidth, 0); // Don't know anything.
KnownZero = KnownZeroOut;
return;
}
+ case ISD::MUL: {
+ APInt Mask2 = APInt::getAllOnesValue(BitWidth);
+ ComputeMaskedBits(Op.getOperand(1), Mask2, KnownZero, KnownOne, Depth+1);
+ ComputeMaskedBits(Op.getOperand(0), Mask2, KnownZero2, KnownOne2, Depth+1);
+ assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?");
+ assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?");
+
+ // If low bits are zero in either operand, output low known-0 bits.
+ // Also compute a conserative estimate for high known-0 bits.
+ // More trickiness is possible, but this is sufficient for the
+ // interesting case of alignment computation.
+ KnownOne.clear();
+ unsigned TrailZ = KnownZero.countTrailingOnes() +
+ KnownZero2.countTrailingOnes();
+ unsigned LeadZ = std::max(KnownZero.countLeadingOnes() +
+ KnownZero2.countLeadingOnes(),
+ BitWidth) - BitWidth;
+
+ TrailZ = std::min(TrailZ, BitWidth);
+ LeadZ = std::min(LeadZ, BitWidth);
+ KnownZero = APInt::getLowBitsSet(BitWidth, TrailZ) |
+ APInt::getHighBitsSet(BitWidth, LeadZ);
+ KnownZero &= Mask;
+ return;
+ }
+ case ISD::UDIV: {
+ // For the purposes of computing leading zeros we can conservatively
+ // treat a udiv as a logical right shift by the power of 2 known to
+ // be less than the denominator.
+ APInt AllOnes = APInt::getAllOnesValue(BitWidth);
+ ComputeMaskedBits(Op.getOperand(0),
+ AllOnes, KnownZero2, KnownOne2, Depth+1);
+ unsigned LeadZ = KnownZero2.countLeadingOnes();
+
+ KnownOne2.clear();
+ KnownZero2.clear();
+ ComputeMaskedBits(Op.getOperand(1),
+ AllOnes, KnownZero2, KnownOne2, Depth+1);
+ unsigned RHSUnknownLeadingOnes = KnownOne2.countLeadingZeros();
+ if (RHSUnknownLeadingOnes != BitWidth)
+ LeadZ = std::min(BitWidth,
+ LeadZ + BitWidth - RHSUnknownLeadingOnes - 1);
+
+ KnownZero = APInt::getHighBitsSet(BitWidth, LeadZ) & Mask;
+ return;
+ }
case ISD::SELECT:
ComputeMaskedBits(Op.getOperand(2), Mask, KnownZero, KnownOne, Depth+1);
ComputeMaskedBits(Op.getOperand(1), Mask, KnownZero2, KnownOne2, Depth+1);
}
return;
case ISD::SIGN_EXTEND_INREG: {
- MVT::ValueType EVT = cast<VTSDNode>(Op.getOperand(1))->getVT();
- unsigned EBits = MVT::getSizeInBits(EVT);
+ MVT EVT = cast<VTSDNode>(Op.getOperand(1))->getVT();
+ unsigned EBits = EVT.getSizeInBits();
// Sign extension. Compute the demanded bits in the result that are not
// present in the input.
case ISD::CTPOP: {
unsigned LowBits = Log2_32(BitWidth)+1;
KnownZero = APInt::getHighBitsSet(BitWidth, BitWidth - LowBits);
- KnownOne = APInt(BitWidth, 0);
+ KnownOne.clear();
return;
}
case ISD::LOAD: {
if (ISD::isZEXTLoad(Op.Val)) {
LoadSDNode *LD = cast<LoadSDNode>(Op);
- MVT::ValueType VT = LD->getMemoryVT();
- unsigned MemBits = MVT::getSizeInBits(VT);
+ MVT VT = LD->getMemoryVT();
+ unsigned MemBits = VT.getSizeInBits();
KnownZero |= APInt::getHighBitsSet(BitWidth, BitWidth - MemBits) & Mask;
}
return;
}
case ISD::ZERO_EXTEND: {
- MVT::ValueType InVT = Op.getOperand(0).getValueType();
- unsigned InBits = MVT::getSizeInBits(InVT);
+ MVT InVT = Op.getOperand(0).getValueType();
+ unsigned InBits = InVT.getSizeInBits();
APInt NewBits = APInt::getHighBitsSet(BitWidth, BitWidth - InBits) & Mask;
APInt InMask = Mask;
InMask.trunc(InBits);
return;
}
case ISD::SIGN_EXTEND: {
- MVT::ValueType InVT = Op.getOperand(0).getValueType();
- unsigned InBits = MVT::getSizeInBits(InVT);
+ MVT InVT = Op.getOperand(0).getValueType();
+ unsigned InBits = InVT.getSizeInBits();
APInt InSignBit = APInt::getSignBit(InBits);
APInt NewBits = APInt::getHighBitsSet(BitWidth, BitWidth - InBits) & Mask;
APInt InMask = Mask;
return;
}
case ISD::ANY_EXTEND: {
- MVT::ValueType InVT = Op.getOperand(0).getValueType();
- unsigned InBits = MVT::getSizeInBits(InVT);
+ MVT InVT = Op.getOperand(0).getValueType();
+ unsigned InBits = InVT.getSizeInBits();
APInt InMask = Mask;
InMask.trunc(InBits);
KnownZero.trunc(InBits);
return;
}
case ISD::TRUNCATE: {
- MVT::ValueType InVT = Op.getOperand(0).getValueType();
- unsigned InBits = MVT::getSizeInBits(InVT);
+ MVT InVT = Op.getOperand(0).getValueType();
+ unsigned InBits = InVT.getSizeInBits();
APInt InMask = Mask;
InMask.zext(InBits);
KnownZero.zext(InBits);
break;
}
case ISD::AssertZext: {
- MVT::ValueType VT = cast<VTSDNode>(Op.getOperand(1))->getVT();
- APInt InMask = APInt::getLowBitsSet(BitWidth, MVT::getSizeInBits(VT));
+ MVT VT = cast<VTSDNode>(Op.getOperand(1))->getVT();
+ APInt InMask = APInt::getLowBitsSet(BitWidth, VT.getSizeInBits());
ComputeMaskedBits(Op.getOperand(0), Mask & InMask, KnownZero,
KnownOne, Depth+1);
KnownZero |= (~InMask) & Mask;
KnownZero = APInt::getHighBitsSet(BitWidth, BitWidth - 1);
return;
+ case ISD::SUB: {
+ if (ConstantSDNode *CLHS = dyn_cast<ConstantSDNode>(Op.getOperand(0))) {
+ // We know that the top bits of C-X are clear if X contains less bits
+ // than C (i.e. no wrap-around can happen). For example, 20-X is
+ // positive if we can prove that X is >= 0 and < 16.
+ if (CLHS->getAPIntValue().isNonNegative()) {
+ unsigned NLZ = (CLHS->getAPIntValue()+1).countLeadingZeros();
+ // NLZ can't be BitWidth with no sign bit
+ APInt MaskV = APInt::getHighBitsSet(BitWidth, NLZ+1);
+ ComputeMaskedBits(Op.getOperand(1), MaskV, KnownZero2, KnownOne2,
+ Depth+1);
+
+ // If all of the MaskV bits are known to be zero, then we know the
+ // output top bits are zero, because we now know that the output is
+ // from [0-C].
+ if ((KnownZero2 & MaskV) == MaskV) {
+ unsigned NLZ2 = CLHS->getAPIntValue().countLeadingZeros();
+ // Top bits known zero.
+ KnownZero = APInt::getHighBitsSet(BitWidth, NLZ2) & Mask;
+ }
+ }
+ }
+ }
+ // fall through
case ISD::ADD: {
- // If either the LHS or the RHS are Zero, the result is zero.
- ComputeMaskedBits(Op.getOperand(1), Mask, KnownZero, KnownOne, Depth+1);
- ComputeMaskedBits(Op.getOperand(0), Mask, KnownZero2, KnownOne2, Depth+1);
- assert((KnownZero & KnownOne) == 0 && "Bits known to be one AND zero?");
- assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?");
-
// Output known-0 bits are known if clear or set in both the low clear bits
// common to both LHS & RHS. For example, 8+(X<<3) is known to have the
// low 3 bits clear.
- unsigned KnownZeroOut = std::min(KnownZero.countTrailingOnes(),
- KnownZero2.countTrailingOnes());
-
- KnownZero = APInt::getLowBitsSet(BitWidth, KnownZeroOut);
- KnownOne = APInt(BitWidth, 0);
+ APInt Mask2 = APInt::getLowBitsSet(BitWidth, Mask.countTrailingOnes());
+ ComputeMaskedBits(Op.getOperand(0), Mask2, KnownZero2, KnownOne2, Depth+1);
+ assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?");
+ unsigned KnownZeroOut = KnownZero2.countTrailingOnes();
+
+ ComputeMaskedBits(Op.getOperand(1), Mask2, KnownZero2, KnownOne2, Depth+1);
+ assert((KnownZero2 & KnownOne2) == 0 && "Bits known to be one AND zero?");
+ KnownZeroOut = std::min(KnownZeroOut,
+ KnownZero2.countTrailingOnes());
+
+ KnownZero |= APInt::getLowBitsSet(BitWidth, KnownZeroOut);
return;
}
- case ISD::SUB: {
- ConstantSDNode *CLHS = dyn_cast<ConstantSDNode>(Op.getOperand(0));
- if (!CLHS) return;
-
- // We know that the top bits of C-X are clear if X contains less bits
- // than C (i.e. no wrap-around can happen). For example, 20-X is
- // positive if we can prove that X is >= 0 and < 16.
- if (CLHS->getAPIntValue().isNonNegative()) {
- unsigned NLZ = (CLHS->getAPIntValue()+1).countLeadingZeros();
- // NLZ can't be BitWidth with no sign bit
- APInt MaskV = APInt::getHighBitsSet(BitWidth, NLZ+1);
- ComputeMaskedBits(Op.getOperand(1), MaskV, KnownZero, KnownOne, Depth+1);
-
- // If all of the MaskV bits are known to be zero, then we know the output
- // top bits are zero, because we now know that the output is from [0-C].
- if ((KnownZero & MaskV) == MaskV) {
- unsigned NLZ2 = CLHS->getAPIntValue().countLeadingZeros();
- // Top bits known zero.
- KnownZero = APInt::getHighBitsSet(BitWidth, NLZ2) & Mask;
- KnownOne = APInt(BitWidth, 0); // No one bits known.
- } else {
- KnownZero = KnownOne = APInt(BitWidth, 0); // Otherwise, nothing known.
+ case ISD::SREM:
+ if (ConstantSDNode *Rem = dyn_cast<ConstantSDNode>(Op.getOperand(1))) {
+ const APInt &RA = Rem->getAPIntValue();
+ if (RA.isPowerOf2() || (-RA).isPowerOf2()) {
+ APInt LowBits = RA.isStrictlyPositive() ? (RA - 1) : ~RA;
+ APInt Mask2 = LowBits | APInt::getSignBit(BitWidth);
+ ComputeMaskedBits(Op.getOperand(0), Mask2,KnownZero2,KnownOne2,Depth+1);
+
+ // The sign of a remainder is equal to the sign of the first
+ // operand (zero being positive).
+ if (KnownZero2[BitWidth-1] || ((KnownZero2 & LowBits) == LowBits))
+ KnownZero2 |= ~LowBits;
+ else if (KnownOne2[BitWidth-1])
+ KnownOne2 |= ~LowBits;
+
+ KnownZero |= KnownZero2 & Mask;
+ KnownOne |= KnownOne2 & Mask;
+
+ assert((KnownZero & KnownOne) == 0&&"Bits known to be one AND zero?");
+ }
+ }
+ return;
+ case ISD::UREM: {
+ if (ConstantSDNode *Rem = dyn_cast<ConstantSDNode>(Op.getOperand(1))) {
+ const APInt &RA = Rem->getAPIntValue();
+ if (RA.isPowerOf2()) {
+ APInt LowBits = (RA - 1);
+ APInt Mask2 = LowBits & Mask;
+ KnownZero |= ~LowBits & Mask;
+ ComputeMaskedBits(Op.getOperand(0), Mask2, KnownZero, KnownOne,Depth+1);
+ assert((KnownZero & KnownOne) == 0&&"Bits known to be one AND zero?");
+ break;
}
}
+
+ // Since the result is less than or equal to either operand, any leading
+ // zero bits in either operand must also exist in the result.
+ APInt AllOnes = APInt::getAllOnesValue(BitWidth);
+ ComputeMaskedBits(Op.getOperand(0), AllOnes, KnownZero, KnownOne,
+ Depth+1);
+ ComputeMaskedBits(Op.getOperand(1), AllOnes, KnownZero2, KnownOne2,
+ Depth+1);
+
+ uint32_t Leaders = std::max(KnownZero.countLeadingOnes(),
+ KnownZero2.countLeadingOnes());
+ KnownOne.clear();
+ KnownZero = APInt::getHighBitsSet(BitWidth, Leaders) & Mask;
return;
}
default:
/// is always equal to the sign bit (itself), but other cases can give us
/// information. For example, immediately after an "SRA X, 2", we know that
/// the top 3 bits are all equal to each other, so we return 3.
-unsigned SelectionDAG::ComputeNumSignBits(SDOperand Op, unsigned Depth) const{
- MVT::ValueType VT = Op.getValueType();
- assert(MVT::isInteger(VT) && "Invalid VT!");
- unsigned VTBits = MVT::getSizeInBits(VT);
+unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, unsigned Depth) const{
+ MVT VT = Op.getValueType();
+ assert(VT.isInteger() && "Invalid VT!");
+ unsigned VTBits = VT.getSizeInBits();
unsigned Tmp, Tmp2;
+ unsigned FirstAnswer = 1;
if (Depth == 6)
return 1; // Limit search depth.
switch (Op.getOpcode()) {
default: break;
case ISD::AssertSext:
- Tmp = MVT::getSizeInBits(cast<VTSDNode>(Op.getOperand(1))->getVT());
+ Tmp = cast<VTSDNode>(Op.getOperand(1))->getVT().getSizeInBits();
return VTBits-Tmp+1;
case ISD::AssertZext:
- Tmp = MVT::getSizeInBits(cast<VTSDNode>(Op.getOperand(1))->getVT());
+ Tmp = cast<VTSDNode>(Op.getOperand(1))->getVT().getSizeInBits();
return VTBits-Tmp;
case ISD::Constant: {
}
case ISD::SIGN_EXTEND:
- Tmp = VTBits-MVT::getSizeInBits(Op.getOperand(0).getValueType());
+ Tmp = VTBits-Op.getOperand(0).getValueType().getSizeInBits();
return ComputeNumSignBits(Op.getOperand(0), Depth+1) + Tmp;
case ISD::SIGN_EXTEND_INREG:
// Max of the input and what this extends.
- Tmp = MVT::getSizeInBits(cast<VTSDNode>(Op.getOperand(1))->getVT());
+ Tmp = cast<VTSDNode>(Op.getOperand(1))->getVT().getSizeInBits();
Tmp = VTBits-Tmp+1;
Tmp2 = ComputeNumSignBits(Op.getOperand(0), Depth+1);
case ISD::AND:
case ISD::OR:
case ISD::XOR: // NOT is handled here.
- // Logical binary ops preserve the number of sign bits.
+ // Logical binary ops preserve the number of sign bits at the worst.
Tmp = ComputeNumSignBits(Op.getOperand(0), Depth+1);
- if (Tmp == 1) return 1; // Early out.
- Tmp2 = ComputeNumSignBits(Op.getOperand(1), Depth+1);
- return std::min(Tmp, Tmp2);
+ if (Tmp != 1) {
+ Tmp2 = ComputeNumSignBits(Op.getOperand(1), Depth+1);
+ FirstAnswer = std::min(Tmp, Tmp2);
+ // We computed what we know about the sign bits as our first
+ // answer. Now proceed to the generic code that uses
+ // ComputeMaskedBits, and pick whichever answer is better.
+ }
+ break;
case ISD::SELECT:
- Tmp = ComputeNumSignBits(Op.getOperand(0), Depth+1);
+ Tmp = ComputeNumSignBits(Op.getOperand(1), Depth+1);
if (Tmp == 1) return 1; // Early out.
- Tmp2 = ComputeNumSignBits(Op.getOperand(1), Depth+1);
+ Tmp2 = ComputeNumSignBits(Op.getOperand(2), Depth+1);
return std::min(Tmp, Tmp2);
case ISD::SETCC:
switch (ExtType) {
default: break;
case ISD::SEXTLOAD: // '17' bits known
- Tmp = MVT::getSizeInBits(LD->getMemoryVT());
+ Tmp = LD->getMemoryVT().getSizeInBits();
return VTBits-Tmp+1;
case ISD::ZEXTLOAD: // '16' bits known
- Tmp = MVT::getSizeInBits(LD->getMemoryVT());
+ Tmp = LD->getMemoryVT().getSizeInBits();
return VTBits-Tmp;
}
}
Op.getOpcode() == ISD::INTRINSIC_W_CHAIN ||
Op.getOpcode() == ISD::INTRINSIC_VOID) {
unsigned NumBits = TLI.ComputeNumSignBitsForTargetNode(Op, Depth);
- if (NumBits > 1) return NumBits;
+ if (NumBits > 1) FirstAnswer = std::max(FirstAnswer, NumBits);
}
// Finally, if we can prove that the top bits of the result are 0's or 1's,
Mask = KnownOne;
} else {
// Nothing known.
- return 1;
+ return FirstAnswer;
}
// Okay, we know that the sign bit in Mask is set. Use CLZ to determine
Mask <<= Mask.getBitWidth()-VTBits;
// Return # leading zeros. We use 'min' here in case Val was zero before
// shifting. We don't want to return '64' as for an i32 "0".
- return std::min(VTBits, Mask.countLeadingZeros());
+ return std::max(FirstAnswer, std::min(VTBits, Mask.countLeadingZeros()));
}
-bool SelectionDAG::isVerifiedDebugInfoDesc(SDOperand Op) const {
+bool SelectionDAG::isVerifiedDebugInfoDesc(SDValue Op) const {
GlobalAddressSDNode *GA = dyn_cast<GlobalAddressSDNode>(Op);
if (!GA) return false;
GlobalVariable *GV = dyn_cast<GlobalVariable>(GA->getGlobal());
}
+/// getShuffleScalarElt - Returns the scalar element that will make up the ith
+/// element of the result of the vector shuffle.
+SDValue SelectionDAG::getShuffleScalarElt(const SDNode *N, unsigned i) {
+ MVT VT = N->getValueType(0);
+ SDValue PermMask = N->getOperand(2);
+ SDValue Idx = PermMask.getOperand(i);
+ if (Idx.getOpcode() == ISD::UNDEF)
+ return getNode(ISD::UNDEF, VT.getVectorElementType());
+ unsigned Index = cast<ConstantSDNode>(Idx)->getValue();
+ unsigned NumElems = PermMask.getNumOperands();
+ SDValue V = (Index < NumElems) ? N->getOperand(0) : N->getOperand(1);
+ Index %= NumElems;
+
+ if (V.getOpcode() == ISD::BIT_CONVERT) {
+ V = V.getOperand(0);
+ if (V.getValueType().getVectorNumElements() != NumElems)
+ return SDValue();
+ }
+ if (V.getOpcode() == ISD::SCALAR_TO_VECTOR)
+ return (Index == 0) ? V.getOperand(0)
+ : getNode(ISD::UNDEF, VT.getVectorElementType());
+ if (V.getOpcode() == ISD::BUILD_VECTOR)
+ return V.getOperand(Index);
+ if (V.getOpcode() == ISD::VECTOR_SHUFFLE)
+ return getShuffleScalarElt(V.Val, Index);
+ return SDValue();
+}
+
+
/// getNode - Gets or creates the specified node.
///
-SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT) {
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT) {
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opcode, getVTList(VT), 0, 0);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new SDNode(Opcode, SDNode::getSDVTList(VT));
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<SDNode>();
+ new (N) SDNode(Opcode, SDNode::getSDVTList(VT));
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+#ifndef NDEBUG
+ VerifyNode(N);
+#endif
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand Operand) {
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT, SDValue Operand) {
// Constant fold unary operations with an integer constant operand.
if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Operand.Val)) {
const APInt &Val = C->getAPIntValue();
- unsigned BitWidth = MVT::getSizeInBits(VT);
+ unsigned BitWidth = VT.getSizeInBits();
switch (Opcode) {
default: break;
case ISD::SIGN_EXTEND:
unsigned OpOpcode = Operand.Val->getOpcode();
switch (Opcode) {
case ISD::TokenFactor:
- return Operand; // Factor of one node? No factor.
+ return Operand; // Factor of one node? No need.
case ISD::FP_ROUND: assert(0 && "Invalid method to make FP_ROUND node");
case ISD::FP_EXTEND:
- assert(MVT::isFloatingPoint(VT) &&
- MVT::isFloatingPoint(Operand.getValueType()) && "Invalid FP cast!");
+ assert(VT.isFloatingPoint() &&
+ Operand.getValueType().isFloatingPoint() && "Invalid FP cast!");
if (Operand.getValueType() == VT) return Operand; // noop conversion.
if (Operand.getOpcode() == ISD::UNDEF)
return getNode(ISD::UNDEF, VT);
break;
case ISD::SIGN_EXTEND:
- assert(MVT::isInteger(VT) && MVT::isInteger(Operand.getValueType()) &&
+ assert(VT.isInteger() && Operand.getValueType().isInteger() &&
"Invalid SIGN_EXTEND!");
if (Operand.getValueType() == VT) return Operand; // noop extension
- assert(MVT::getSizeInBits(Operand.getValueType()) < MVT::getSizeInBits(VT)
+ assert(Operand.getValueType().bitsLT(VT)
&& "Invalid sext node, dst < src!");
if (OpOpcode == ISD::SIGN_EXTEND || OpOpcode == ISD::ZERO_EXTEND)
return getNode(OpOpcode, VT, Operand.Val->getOperand(0));
break;
case ISD::ZERO_EXTEND:
- assert(MVT::isInteger(VT) && MVT::isInteger(Operand.getValueType()) &&
+ assert(VT.isInteger() && Operand.getValueType().isInteger() &&
"Invalid ZERO_EXTEND!");
if (Operand.getValueType() == VT) return Operand; // noop extension
- assert(MVT::getSizeInBits(Operand.getValueType()) < MVT::getSizeInBits(VT)
+ assert(Operand.getValueType().bitsLT(VT)
&& "Invalid zext node, dst < src!");
if (OpOpcode == ISD::ZERO_EXTEND) // (zext (zext x)) -> (zext x)
return getNode(ISD::ZERO_EXTEND, VT, Operand.Val->getOperand(0));
break;
case ISD::ANY_EXTEND:
- assert(MVT::isInteger(VT) && MVT::isInteger(Operand.getValueType()) &&
+ assert(VT.isInteger() && Operand.getValueType().isInteger() &&
"Invalid ANY_EXTEND!");
if (Operand.getValueType() == VT) return Operand; // noop extension
- assert(MVT::getSizeInBits(Operand.getValueType()) < MVT::getSizeInBits(VT)
+ assert(Operand.getValueType().bitsLT(VT)
&& "Invalid anyext node, dst < src!");
if (OpOpcode == ISD::ZERO_EXTEND || OpOpcode == ISD::SIGN_EXTEND)
// (ext (zext x)) -> (zext x) and (ext (sext x)) -> (sext x)
return getNode(OpOpcode, VT, Operand.Val->getOperand(0));
break;
case ISD::TRUNCATE:
- assert(MVT::isInteger(VT) && MVT::isInteger(Operand.getValueType()) &&
+ assert(VT.isInteger() && Operand.getValueType().isInteger() &&
"Invalid TRUNCATE!");
if (Operand.getValueType() == VT) return Operand; // noop truncate
- assert(MVT::getSizeInBits(Operand.getValueType()) > MVT::getSizeInBits(VT)
+ assert(Operand.getValueType().bitsGT(VT)
&& "Invalid truncate node, src < dst!");
if (OpOpcode == ISD::TRUNCATE)
return getNode(ISD::TRUNCATE, VT, Operand.Val->getOperand(0));
else if (OpOpcode == ISD::ZERO_EXTEND || OpOpcode == ISD::SIGN_EXTEND ||
OpOpcode == ISD::ANY_EXTEND) {
// If the source is smaller than the dest, we still need an extend.
- if (MVT::getSizeInBits(Operand.Val->getOperand(0).getValueType())
- < MVT::getSizeInBits(VT))
+ if (Operand.Val->getOperand(0).getValueType().bitsLT(VT))
return getNode(OpOpcode, VT, Operand.Val->getOperand(0));
- else if (MVT::getSizeInBits(Operand.Val->getOperand(0).getValueType())
- > MVT::getSizeInBits(VT))
+ else if (Operand.Val->getOperand(0).getValueType().bitsGT(VT))
return getNode(ISD::TRUNCATE, VT, Operand.Val->getOperand(0));
else
return Operand.Val->getOperand(0);
break;
case ISD::BIT_CONVERT:
// Basic sanity checking.
- assert(MVT::getSizeInBits(VT) == MVT::getSizeInBits(Operand.getValueType())
+ assert(VT.getSizeInBits() == Operand.getValueType().getSizeInBits()
&& "Cannot BIT_CONVERT between types of different sizes!");
if (VT == Operand.getValueType()) return Operand; // noop conversion.
if (OpOpcode == ISD::BIT_CONVERT) // bitconv(bitconv(x)) -> bitconv(x)
return getNode(ISD::UNDEF, VT);
break;
case ISD::SCALAR_TO_VECTOR:
- assert(MVT::isVector(VT) && !MVT::isVector(Operand.getValueType()) &&
- MVT::getVectorElementType(VT) == Operand.getValueType() &&
+ assert(VT.isVector() && !Operand.getValueType().isVector() &&
+ VT.getVectorElementType() == Operand.getValueType() &&
"Illegal SCALAR_TO_VECTOR node!");
if (OpOpcode == ISD::UNDEF)
return getNode(ISD::UNDEF, VT);
SDVTList VTs = getVTList(VT);
if (VT != MVT::Flag) { // Don't CSE flag producing nodes
FoldingSetNodeID ID;
- SDOperand Ops[1] = { Operand };
+ SDValue Ops[1] = { Operand };
AddNodeIDNode(ID, Opcode, VTs, Ops, 1);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- N = new UnarySDNode(Opcode, VTs, Operand);
+ return SDValue(E, 0);
+ N = getAllocator().Allocate<UnarySDNode>();
+ new (N) UnarySDNode(Opcode, VTs, Operand);
CSEMap.InsertNode(N, IP);
} else {
- N = new UnarySDNode(Opcode, VTs, Operand);
+ N = getAllocator().Allocate<UnarySDNode>();
+ new (N) UnarySDNode(Opcode, VTs, Operand);
}
+
AllNodes.push_back(N);
- return SDOperand(N, 0);
+#ifndef NDEBUG
+ VerifyNode(N);
+#endif
+ return SDValue(N, 0);
}
-
-
-SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2) {
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT,
+ SDValue N1, SDValue N2) {
ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.Val);
switch (Opcode) {
if (N2.getOpcode() == ISD::EntryToken) return N1;
break;
case ISD::AND:
- assert(MVT::isInteger(VT) && N1.getValueType() == N2.getValueType() &&
+ assert(VT.isInteger() && N1.getValueType() == N2.getValueType() &&
N1.getValueType() == VT && "Binary operator types must match!");
// (X & 0) -> 0. This commonly occurs when legalizing i64 values, so it's
// worth handling here.
break;
case ISD::OR:
case ISD::XOR:
- assert(MVT::isInteger(VT) && N1.getValueType() == N2.getValueType() &&
+ case ISD::ADD:
+ case ISD::SUB:
+ assert(VT.isInteger() && N1.getValueType() == N2.getValueType() &&
N1.getValueType() == VT && "Binary operator types must match!");
- // (X ^| 0) -> X. This commonly occurs when legalizing i64 values, so it's
- // worth handling here.
+ // (X ^|+- 0) -> X. This commonly occurs when legalizing i64 values, so
+ // it's worth handling here.
if (N2C && N2C->isNullValue())
return N1;
break;
case ISD::UREM:
case ISD::MULHU:
case ISD::MULHS:
- assert(MVT::isInteger(VT) && "This operator does not apply to FP types!");
+ assert(VT.isInteger() && "This operator does not apply to FP types!");
// fall through
- case ISD::ADD:
- case ISD::SUB:
case ISD::MUL:
case ISD::SDIV:
case ISD::SREM:
break;
case ISD::FCOPYSIGN: // N1 and result must match. N1/N2 need not match.
assert(N1.getValueType() == VT &&
- MVT::isFloatingPoint(N1.getValueType()) &&
- MVT::isFloatingPoint(N2.getValueType()) &&
+ N1.getValueType().isFloatingPoint() &&
+ N2.getValueType().isFloatingPoint() &&
"Invalid FCOPYSIGN!");
break;
case ISD::SHL:
case ISD::ROTR:
assert(VT == N1.getValueType() &&
"Shift operators return type must be the same as their first arg");
- assert(MVT::isInteger(VT) && MVT::isInteger(N2.getValueType()) &&
- VT != MVT::i1 && "Shifts only work on integers");
+ assert(VT.isInteger() && N2.getValueType().isInteger() &&
+ "Shifts only work on integers");
+
+ // Always fold shifts of i1 values so the code generator doesn't need to
+ // handle them. Since we know the size of the shift has to be less than the
+ // size of the value, the shift/rotate count is guaranteed to be zero.
+ if (VT == MVT::i1)
+ return N1;
break;
case ISD::FP_ROUND_INREG: {
- MVT::ValueType EVT = cast<VTSDNode>(N2)->getVT();
+ MVT EVT = cast<VTSDNode>(N2)->getVT();
assert(VT == N1.getValueType() && "Not an inreg round!");
- assert(MVT::isFloatingPoint(VT) && MVT::isFloatingPoint(EVT) &&
+ assert(VT.isFloatingPoint() && EVT.isFloatingPoint() &&
"Cannot FP_ROUND_INREG integer types");
- assert(MVT::getSizeInBits(EVT) <= MVT::getSizeInBits(VT) &&
- "Not rounding down!");
+ assert(EVT.bitsLE(VT) && "Not rounding down!");
if (cast<VTSDNode>(N2)->getVT() == VT) return N1; // Not actually rounding.
break;
}
case ISD::FP_ROUND:
- assert(MVT::isFloatingPoint(VT) &&
- MVT::isFloatingPoint(N1.getValueType()) &&
- MVT::getSizeInBits(VT) <= MVT::getSizeInBits(N1.getValueType()) &&
+ assert(VT.isFloatingPoint() &&
+ N1.getValueType().isFloatingPoint() &&
+ VT.bitsLE(N1.getValueType()) &&
isa<ConstantSDNode>(N2) && "Invalid FP_ROUND!");
if (N1.getValueType() == VT) return N1; // noop conversion.
break;
case ISD::AssertSext:
case ISD::AssertZext: {
- MVT::ValueType EVT = cast<VTSDNode>(N2)->getVT();
+ MVT EVT = cast<VTSDNode>(N2)->getVT();
assert(VT == N1.getValueType() && "Not an inreg extend!");
- assert(MVT::isInteger(VT) && MVT::isInteger(EVT) &&
+ assert(VT.isInteger() && EVT.isInteger() &&
"Cannot *_EXTEND_INREG FP types");
- assert(MVT::getSizeInBits(EVT) <= MVT::getSizeInBits(VT) &&
- "Not extending!");
+ assert(EVT.bitsLE(VT) && "Not extending!");
if (VT == EVT) return N1; // noop assertion.
break;
}
case ISD::SIGN_EXTEND_INREG: {
- MVT::ValueType EVT = cast<VTSDNode>(N2)->getVT();
+ MVT EVT = cast<VTSDNode>(N2)->getVT();
assert(VT == N1.getValueType() && "Not an inreg extend!");
- assert(MVT::isInteger(VT) && MVT::isInteger(EVT) &&
+ assert(VT.isInteger() && EVT.isInteger() &&
"Cannot *_EXTEND_INREG FP types");
- assert(MVT::getSizeInBits(EVT) <= MVT::getSizeInBits(VT) &&
- "Not extending!");
+ assert(EVT.bitsLE(VT) && "Not extending!");
if (EVT == VT) return N1; // Not actually extending
if (N1C) {
APInt Val = N1C->getAPIntValue();
- unsigned FromBits = MVT::getSizeInBits(cast<VTSDNode>(N2)->getVT());
+ unsigned FromBits = cast<VTSDNode>(N2)->getVT().getSizeInBits();
Val <<= Val.getBitWidth()-FromBits;
Val = Val.ashr(Val.getBitWidth()-FromBits);
return getConstant(Val, VT);
if (N1.getOpcode() == ISD::CONCAT_VECTORS &&
N1.getNumOperands() > 0) {
unsigned Factor =
- MVT::getVectorNumElements(N1.getOperand(0).getValueType());
+ N1.getOperand(0).getValueType().getVectorNumElements();
return getNode(ISD::EXTRACT_VECTOR_ELT, VT,
N1.getOperand(N2C->getValue() / Factor),
getConstant(N2C->getValue() % Factor, N2.getValueType()));
break;
case ISD::EXTRACT_ELEMENT:
assert(N2C && (unsigned)N2C->getValue() < 2 && "Bad EXTRACT_ELEMENT!");
- assert(!MVT::isVector(N1.getValueType()) &&
- MVT::isInteger(N1.getValueType()) &&
- !MVT::isVector(VT) && MVT::isInteger(VT) &&
- "EXTRACT_ELEMENT only applies to integers!");
+ assert(!N1.getValueType().isVector() && !VT.isVector() &&
+ (N1.getValueType().isInteger() == VT.isInteger()) &&
+ "Wrong types for EXTRACT_ELEMENT!");
// EXTRACT_ELEMENT of BUILD_PAIR is often formed while legalize is expanding
// 64-bit integers into 32-bit parts. Instead of building the extract of
// EXTRACT_ELEMENT of a constant int is also very common.
if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(N1)) {
- unsigned Shift = MVT::getSizeInBits(VT) * N2C->getValue();
- return getConstant(C->getValue() >> Shift, VT);
+ unsigned ElementSize = VT.getSizeInBits();
+ unsigned Shift = ElementSize * N2C->getValue();
+ APInt ShiftedVal = C->getAPIntValue().lshr(Shift);
+ return getConstant(ShiftedVal.trunc(ElementSize), VT);
}
break;
case ISD::EXTRACT_SUBVECTOR:
if (N1C) {
if (N2C) {
- APInt C1 = N1C->getAPIntValue(), C2 = N2C->getAPIntValue();
+ const APInt &C1 = N1C->getAPIntValue(), &C2 = N2C->getAPIntValue();
switch (Opcode) {
case ISD::ADD: return getConstant(C1 + C2, VT);
case ISD::SUB: return getConstant(C1 - C2, VT);
case ISD::SREM:
case ISD::SRL:
case ISD::SHL:
- if (!MVT::isVector(VT))
+ if (!VT.isVector())
return getConstant(0, VT); // fold op(undef, arg2) -> 0
// For vectors, we can't easily build an all zero vector, just return
// the LHS.
// Fold a bunch of operators when the RHS is undef.
if (N2.getOpcode() == ISD::UNDEF) {
switch (Opcode) {
+ case ISD::XOR:
+ if (N1.getOpcode() == ISD::UNDEF)
+ // Handle undef ^ undef -> 0 special case. This is a common
+ // idiom (misuse).
+ return getConstant(0, VT);
+ // fallthrough
case ISD::ADD:
case ISD::ADDC:
case ISD::ADDE:
case ISD::SDIV:
case ISD::UREM:
case ISD::SREM:
- case ISD::XOR:
return N2; // fold op(arg1, undef) -> undef
case ISD::MUL:
case ISD::AND:
case ISD::SRL:
case ISD::SHL:
- if (!MVT::isVector(VT))
+ if (!VT.isVector())
return getConstant(0, VT); // fold op(arg1, undef) -> 0
// For vectors, we can't easily build an all zero vector, just return
// the LHS.
return N1;
case ISD::OR:
- if (!MVT::isVector(VT))
- return getConstant(MVT::getIntVTBitMask(VT), VT);
+ if (!VT.isVector())
+ return getConstant(VT.getIntegerVTBitMask(), VT);
// For vectors, we can't easily build an all one vector, just return
// the LHS.
return N1;
SDNode *N;
SDVTList VTs = getVTList(VT);
if (VT != MVT::Flag) {
- SDOperand Ops[] = { N1, N2 };
+ SDValue Ops[] = { N1, N2 };
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opcode, VTs, Ops, 2);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- N = new BinarySDNode(Opcode, VTs, N1, N2);
+ return SDValue(E, 0);
+ N = getAllocator().Allocate<BinarySDNode>();
+ new (N) BinarySDNode(Opcode, VTs, N1, N2);
CSEMap.InsertNode(N, IP);
} else {
- N = new BinarySDNode(Opcode, VTs, N1, N2);
+ N = getAllocator().Allocate<BinarySDNode>();
+ new (N) BinarySDNode(Opcode, VTs, N1, N2);
}
AllNodes.push_back(N);
- return SDOperand(N, 0);
+#ifndef NDEBUG
+ VerifyNode(N);
+#endif
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2, SDOperand N3) {
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3) {
// Perform various simplifications.
ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.Val);
switch (Opcode) {
case ISD::SETCC: {
// Use FoldSetCC to simplify SETCC's.
- SDOperand Simp = FoldSetCC(VT, N1, N2, cast<CondCodeSDNode>(N3)->get());
+ SDValue Simp = FoldSetCC(VT, N1, N2, cast<CondCodeSDNode>(N3)->get());
if (Simp.Val) return Simp;
break;
}
break;
case ISD::VECTOR_SHUFFLE:
assert(VT == N1.getValueType() && VT == N2.getValueType() &&
- MVT::isVector(VT) && MVT::isVector(N3.getValueType()) &&
+ VT.isVector() && N3.getValueType().isVector() &&
N3.getOpcode() == ISD::BUILD_VECTOR &&
- MVT::getVectorNumElements(VT) == N3.getNumOperands() &&
+ VT.getVectorNumElements() == N3.getNumOperands() &&
"Illegal VECTOR_SHUFFLE node!");
break;
case ISD::BIT_CONVERT:
SDNode *N;
SDVTList VTs = getVTList(VT);
if (VT != MVT::Flag) {
- SDOperand Ops[] = { N1, N2, N3 };
+ SDValue Ops[] = { N1, N2, N3 };
FoldingSetNodeID ID;
AddNodeIDNode(ID, Opcode, VTs, Ops, 3);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- N = new TernarySDNode(Opcode, VTs, N1, N2, N3);
+ return SDValue(E, 0);
+ N = getAllocator().Allocate<TernarySDNode>();
+ new (N) TernarySDNode(Opcode, VTs, N1, N2, N3);
CSEMap.InsertNode(N, IP);
} else {
- N = new TernarySDNode(Opcode, VTs, N1, N2, N3);
+ N = getAllocator().Allocate<TernarySDNode>();
+ new (N) TernarySDNode(Opcode, VTs, N1, N2, N3);
}
AllNodes.push_back(N);
- return SDOperand(N, 0);
+#ifndef NDEBUG
+ VerifyNode(N);
+#endif
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2, SDOperand N3,
- SDOperand N4) {
- SDOperand Ops[] = { N1, N2, N3, N4 };
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3,
+ SDValue N4) {
+ SDValue Ops[] = { N1, N2, N3, N4 };
return getNode(Opcode, VT, Ops, 4);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand N1, SDOperand N2, SDOperand N3,
- SDOperand N4, SDOperand N5) {
- SDOperand Ops[] = { N1, N2, N3, N4, N5 };
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT,
+ SDValue N1, SDValue N2, SDValue N3,
+ SDValue N4, SDValue N5) {
+ SDValue Ops[] = { N1, N2, N3, N4, N5 };
return getNode(Opcode, VT, Ops, 5);
}
-SDOperand SelectionDAG::getMemcpy(SDOperand Chain, SDOperand Dest,
- SDOperand Src, SDOperand Size,
- SDOperand Align,
- SDOperand AlwaysInline) {
- SDOperand Ops[] = { Chain, Dest, Src, Size, Align, AlwaysInline };
- return getNode(ISD::MEMCPY, MVT::Other, Ops, 6);
+/// getMemsetValue - Vectorized representation of the memset value
+/// operand.
+static SDValue getMemsetValue(SDValue Value, MVT VT, SelectionDAG &DAG) {
+ unsigned NumBits = VT.isVector() ?
+ VT.getVectorElementType().getSizeInBits() : VT.getSizeInBits();
+ if (ConstantSDNode *C = dyn_cast<ConstantSDNode>(Value)) {
+ APInt Val = APInt(NumBits, C->getValue() & 255);
+ unsigned Shift = 8;
+ for (unsigned i = NumBits; i > 8; i >>= 1) {
+ Val = (Val << Shift) | Val;
+ Shift <<= 1;
+ }
+ if (VT.isInteger())
+ return DAG.getConstant(Val, VT);
+ return DAG.getConstantFP(APFloat(Val), VT);
+ }
+
+ Value = DAG.getNode(ISD::ZERO_EXTEND, VT, Value);
+ unsigned Shift = 8;
+ for (unsigned i = NumBits; i > 8; i >>= 1) {
+ Value = DAG.getNode(ISD::OR, VT,
+ DAG.getNode(ISD::SHL, VT, Value,
+ DAG.getConstant(Shift, MVT::i8)), Value);
+ Shift <<= 1;
+ }
+
+ return Value;
+}
+
+/// getMemsetStringVal - Similar to getMemsetValue. Except this is only
+/// used when a memcpy is turned into a memset when the source is a constant
+/// string ptr.
+static SDValue getMemsetStringVal(MVT VT, SelectionDAG &DAG,
+ const TargetLowering &TLI,
+ std::string &Str, unsigned Offset) {
+ // Handle vector with all elements zero.
+ if (Str.empty()) {
+ if (VT.isInteger())
+ return DAG.getConstant(0, VT);
+ unsigned NumElts = VT.getVectorNumElements();
+ MVT EltVT = (VT.getVectorElementType() == MVT::f32) ? MVT::i32 : MVT::i64;
+ return DAG.getNode(ISD::BIT_CONVERT, VT,
+ DAG.getConstant(0, MVT::getVectorVT(EltVT, NumElts)));
+ }
+
+ assert(!VT.isVector() && "Can't handle vector type here!");
+ unsigned NumBits = VT.getSizeInBits();
+ unsigned MSB = NumBits / 8;
+ uint64_t Val = 0;
+ if (TLI.isLittleEndian())
+ Offset = Offset + MSB - 1;
+ for (unsigned i = 0; i != MSB; ++i) {
+ Val = (Val << 8) | (unsigned char)Str[Offset];
+ Offset += TLI.isLittleEndian() ? -1 : 1;
+ }
+ return DAG.getConstant(Val, VT);
+}
+
+/// getMemBasePlusOffset - Returns base and offset node for the
+///
+static SDValue getMemBasePlusOffset(SDValue Base, unsigned Offset,
+ SelectionDAG &DAG) {
+ MVT VT = Base.getValueType();
+ return DAG.getNode(ISD::ADD, VT, Base, DAG.getConstant(Offset, VT));
}
-SDOperand SelectionDAG::getMemmove(SDOperand Chain, SDOperand Dest,
- SDOperand Src, SDOperand Size,
- SDOperand Align,
- SDOperand AlwaysInline) {
- SDOperand Ops[] = { Chain, Dest, Src, Size, Align, AlwaysInline };
- return getNode(ISD::MEMMOVE, MVT::Other, Ops, 6);
+/// isMemSrcFromString - Returns true if memcpy source is a string constant.
+///
+static bool isMemSrcFromString(SDValue Src, std::string &Str) {
+ unsigned SrcDelta = 0;
+ GlobalAddressSDNode *G = NULL;
+ if (Src.getOpcode() == ISD::GlobalAddress)
+ G = cast<GlobalAddressSDNode>(Src);
+ else if (Src.getOpcode() == ISD::ADD &&
+ Src.getOperand(0).getOpcode() == ISD::GlobalAddress &&
+ Src.getOperand(1).getOpcode() == ISD::Constant) {
+ G = cast<GlobalAddressSDNode>(Src.getOperand(0));
+ SrcDelta = cast<ConstantSDNode>(Src.getOperand(1))->getValue();
+ }
+ if (!G)
+ return false;
+
+ GlobalVariable *GV = dyn_cast<GlobalVariable>(G->getGlobal());
+ if (GV && GetConstantStringInfo(GV, Str, SrcDelta, false))
+ return true;
+
+ return false;
}
-SDOperand SelectionDAG::getMemset(SDOperand Chain, SDOperand Dest,
- SDOperand Src, SDOperand Size,
- SDOperand Align,
- SDOperand AlwaysInline) {
- SDOperand Ops[] = { Chain, Dest, Src, Size, Align, AlwaysInline };
- return getNode(ISD::MEMSET, MVT::Other, Ops, 6);
+/// MeetsMaxMemopRequirement - Determines if the number of memory ops required
+/// to replace the memset / memcpy is below the threshold. It also returns the
+/// types of the sequence of memory ops to perform memset / memcpy.
+static
+bool MeetsMaxMemopRequirement(std::vector<MVT> &MemOps,
+ SDValue Dst, SDValue Src,
+ unsigned Limit, uint64_t Size, unsigned &Align,
+ std::string &Str, bool &isSrcStr,
+ SelectionDAG &DAG,
+ const TargetLowering &TLI) {
+ isSrcStr = isMemSrcFromString(Src, Str);
+ bool isSrcConst = isa<ConstantSDNode>(Src);
+ bool AllowUnalign = TLI.allowsUnalignedMemoryAccesses();
+ MVT VT= TLI.getOptimalMemOpType(Size, Align, isSrcConst, isSrcStr);
+ if (VT != MVT::iAny) {
+ unsigned NewAlign = (unsigned)
+ TLI.getTargetData()->getABITypeAlignment(VT.getTypeForMVT());
+ // If source is a string constant, this will require an unaligned load.
+ if (NewAlign > Align && (isSrcConst || AllowUnalign)) {
+ if (Dst.getOpcode() != ISD::FrameIndex) {
+ // Can't change destination alignment. It requires a unaligned store.
+ if (AllowUnalign)
+ VT = MVT::iAny;
+ } else {
+ int FI = cast<FrameIndexSDNode>(Dst)->getIndex();
+ MachineFrameInfo *MFI = DAG.getMachineFunction().getFrameInfo();
+ if (MFI->isFixedObjectIndex(FI)) {
+ // Can't change destination alignment. It requires a unaligned store.
+ if (AllowUnalign)
+ VT = MVT::iAny;
+ } else {
+ // Give the stack frame object a larger alignment if needed.
+ if (MFI->getObjectAlignment(FI) < NewAlign)
+ MFI->setObjectAlignment(FI, NewAlign);
+ Align = NewAlign;
+ }
+ }
+ }
+ }
+
+ if (VT == MVT::iAny) {
+ if (AllowUnalign) {
+ VT = MVT::i64;
+ } else {
+ switch (Align & 7) {
+ case 0: VT = MVT::i64; break;
+ case 4: VT = MVT::i32; break;
+ case 2: VT = MVT::i16; break;
+ default: VT = MVT::i8; break;
+ }
+ }
+
+ MVT LVT = MVT::i64;
+ while (!TLI.isTypeLegal(LVT))
+ LVT = (MVT::SimpleValueType)(LVT.getSimpleVT() - 1);
+ assert(LVT.isInteger());
+
+ if (VT.bitsGT(LVT))
+ VT = LVT;
+ }
+
+ unsigned NumMemOps = 0;
+ while (Size != 0) {
+ unsigned VTSize = VT.getSizeInBits() / 8;
+ while (VTSize > Size) {
+ // For now, only use non-vector load / store's for the left-over pieces.
+ if (VT.isVector()) {
+ VT = MVT::i64;
+ while (!TLI.isTypeLegal(VT))
+ VT = (MVT::SimpleValueType)(VT.getSimpleVT() - 1);
+ VTSize = VT.getSizeInBits() / 8;
+ } else {
+ VT = (MVT::SimpleValueType)(VT.getSimpleVT() - 1);
+ VTSize >>= 1;
+ }
+ }
+
+ if (++NumMemOps > Limit)
+ return false;
+ MemOps.push_back(VT);
+ Size -= VTSize;
+ }
+
+ return true;
}
-SDOperand SelectionDAG::getAtomic(unsigned Opcode, SDOperand Chain,
- SDOperand Ptr, SDOperand Cmp,
- SDOperand Swp, MVT::ValueType VT) {
- assert(Opcode == ISD::ATOMIC_LCS && "Invalid Atomic Op");
+static SDValue getMemcpyLoadsAndStores(SelectionDAG &DAG,
+ SDValue Chain, SDValue Dst,
+ SDValue Src, uint64_t Size,
+ unsigned Align, bool AlwaysInline,
+ const Value *DstSV, uint64_t DstSVOff,
+ const Value *SrcSV, uint64_t SrcSVOff){
+ const TargetLowering &TLI = DAG.getTargetLoweringInfo();
+
+ // Expand memcpy to a series of load and store ops if the size operand falls
+ // below a certain threshold.
+ std::vector<MVT> MemOps;
+ uint64_t Limit = -1;
+ if (!AlwaysInline)
+ Limit = TLI.getMaxStoresPerMemcpy();
+ unsigned DstAlign = Align; // Destination alignment can change.
+ std::string Str;
+ bool CopyFromStr;
+ if (!MeetsMaxMemopRequirement(MemOps, Dst, Src, Limit, Size, DstAlign,
+ Str, CopyFromStr, DAG, TLI))
+ return SDValue();
+
+
+ bool isZeroStr = CopyFromStr && Str.empty();
+ SmallVector<SDValue, 8> OutChains;
+ unsigned NumMemOps = MemOps.size();
+ uint64_t SrcOff = 0, DstOff = 0;
+ for (unsigned i = 0; i < NumMemOps; i++) {
+ MVT VT = MemOps[i];
+ unsigned VTSize = VT.getSizeInBits() / 8;
+ SDValue Value, Store;
+
+ if (CopyFromStr && (isZeroStr || !VT.isVector())) {
+ // It's unlikely a store of a vector immediate can be done in a single
+ // instruction. It would require a load from a constantpool first.
+ // We also handle store a vector with all zero's.
+ // FIXME: Handle other cases where store of vector immediate is done in
+ // a single instruction.
+ Value = getMemsetStringVal(VT, DAG, TLI, Str, SrcOff);
+ Store = DAG.getStore(Chain, Value,
+ getMemBasePlusOffset(Dst, DstOff, DAG),
+ DstSV, DstSVOff + DstOff, false, DstAlign);
+ } else {
+ Value = DAG.getLoad(VT, Chain,
+ getMemBasePlusOffset(Src, SrcOff, DAG),
+ SrcSV, SrcSVOff + SrcOff, false, Align);
+ Store = DAG.getStore(Chain, Value,
+ getMemBasePlusOffset(Dst, DstOff, DAG),
+ DstSV, DstSVOff + DstOff, false, DstAlign);
+ }
+ OutChains.push_back(Store);
+ SrcOff += VTSize;
+ DstOff += VTSize;
+ }
+
+ return DAG.getNode(ISD::TokenFactor, MVT::Other,
+ &OutChains[0], OutChains.size());
+}
+
+static SDValue getMemmoveLoadsAndStores(SelectionDAG &DAG,
+ SDValue Chain, SDValue Dst,
+ SDValue Src, uint64_t Size,
+ unsigned Align, bool AlwaysInline,
+ const Value *DstSV, uint64_t DstSVOff,
+ const Value *SrcSV, uint64_t SrcSVOff){
+ const TargetLowering &TLI = DAG.getTargetLoweringInfo();
+
+ // Expand memmove to a series of load and store ops if the size operand falls
+ // below a certain threshold.
+ std::vector<MVT> MemOps;
+ uint64_t Limit = -1;
+ if (!AlwaysInline)
+ Limit = TLI.getMaxStoresPerMemmove();
+ unsigned DstAlign = Align; // Destination alignment can change.
+ std::string Str;
+ bool CopyFromStr;
+ if (!MeetsMaxMemopRequirement(MemOps, Dst, Src, Limit, Size, DstAlign,
+ Str, CopyFromStr, DAG, TLI))
+ return SDValue();
+
+ uint64_t SrcOff = 0, DstOff = 0;
+
+ SmallVector<SDValue, 8> LoadValues;
+ SmallVector<SDValue, 8> LoadChains;
+ SmallVector<SDValue, 8> OutChains;
+ unsigned NumMemOps = MemOps.size();
+ for (unsigned i = 0; i < NumMemOps; i++) {
+ MVT VT = MemOps[i];
+ unsigned VTSize = VT.getSizeInBits() / 8;
+ SDValue Value, Store;
+
+ Value = DAG.getLoad(VT, Chain,
+ getMemBasePlusOffset(Src, SrcOff, DAG),
+ SrcSV, SrcSVOff + SrcOff, false, Align);
+ LoadValues.push_back(Value);
+ LoadChains.push_back(Value.getValue(1));
+ SrcOff += VTSize;
+ }
+ Chain = DAG.getNode(ISD::TokenFactor, MVT::Other,
+ &LoadChains[0], LoadChains.size());
+ OutChains.clear();
+ for (unsigned i = 0; i < NumMemOps; i++) {
+ MVT VT = MemOps[i];
+ unsigned VTSize = VT.getSizeInBits() / 8;
+ SDValue Value, Store;
+
+ Store = DAG.getStore(Chain, LoadValues[i],
+ getMemBasePlusOffset(Dst, DstOff, DAG),
+ DstSV, DstSVOff + DstOff, false, DstAlign);
+ OutChains.push_back(Store);
+ DstOff += VTSize;
+ }
+
+ return DAG.getNode(ISD::TokenFactor, MVT::Other,
+ &OutChains[0], OutChains.size());
+}
+
+static SDValue getMemsetStores(SelectionDAG &DAG,
+ SDValue Chain, SDValue Dst,
+ SDValue Src, uint64_t Size,
+ unsigned Align,
+ const Value *DstSV, uint64_t DstSVOff) {
+ const TargetLowering &TLI = DAG.getTargetLoweringInfo();
+
+ // Expand memset to a series of load/store ops if the size operand
+ // falls below a certain threshold.
+ std::vector<MVT> MemOps;
+ std::string Str;
+ bool CopyFromStr;
+ if (!MeetsMaxMemopRequirement(MemOps, Dst, Src, TLI.getMaxStoresPerMemset(),
+ Size, Align, Str, CopyFromStr, DAG, TLI))
+ return SDValue();
+
+ SmallVector<SDValue, 8> OutChains;
+ uint64_t DstOff = 0;
+
+ unsigned NumMemOps = MemOps.size();
+ for (unsigned i = 0; i < NumMemOps; i++) {
+ MVT VT = MemOps[i];
+ unsigned VTSize = VT.getSizeInBits() / 8;
+ SDValue Value = getMemsetValue(Src, VT, DAG);
+ SDValue Store = DAG.getStore(Chain, Value,
+ getMemBasePlusOffset(Dst, DstOff, DAG),
+ DstSV, DstSVOff + DstOff);
+ OutChains.push_back(Store);
+ DstOff += VTSize;
+ }
+
+ return DAG.getNode(ISD::TokenFactor, MVT::Other,
+ &OutChains[0], OutChains.size());
+}
+
+SDValue SelectionDAG::getMemcpy(SDValue Chain, SDValue Dst,
+ SDValue Src, SDValue Size,
+ unsigned Align, bool AlwaysInline,
+ const Value *DstSV, uint64_t DstSVOff,
+ const Value *SrcSV, uint64_t SrcSVOff) {
+
+ // Check to see if we should lower the memcpy to loads and stores first.
+ // For cases within the target-specified limits, this is the best choice.
+ ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
+ if (ConstantSize) {
+ // Memcpy with size zero? Just return the original chain.
+ if (ConstantSize->isNullValue())
+ return Chain;
+
+ SDValue Result =
+ getMemcpyLoadsAndStores(*this, Chain, Dst, Src, ConstantSize->getValue(),
+ Align, false, DstSV, DstSVOff, SrcSV, SrcSVOff);
+ if (Result.Val)
+ return Result;
+ }
+
+ // Then check to see if we should lower the memcpy with target-specific
+ // code. If the target chooses to do this, this is the next best.
+ SDValue Result =
+ TLI.EmitTargetCodeForMemcpy(*this, Chain, Dst, Src, Size, Align,
+ AlwaysInline,
+ DstSV, DstSVOff, SrcSV, SrcSVOff);
+ if (Result.Val)
+ return Result;
+
+ // If we really need inline code and the target declined to provide it,
+ // use a (potentially long) sequence of loads and stores.
+ if (AlwaysInline) {
+ assert(ConstantSize && "AlwaysInline requires a constant size!");
+ return getMemcpyLoadsAndStores(*this, Chain, Dst, Src,
+ ConstantSize->getValue(), Align, true,
+ DstSV, DstSVOff, SrcSV, SrcSVOff);
+ }
+
+ // Emit a library call.
+ TargetLowering::ArgListTy Args;
+ TargetLowering::ArgListEntry Entry;
+ Entry.Ty = TLI.getTargetData()->getIntPtrType();
+ Entry.Node = Dst; Args.push_back(Entry);
+ Entry.Node = Src; Args.push_back(Entry);
+ Entry.Node = Size; Args.push_back(Entry);
+ std::pair<SDValue,SDValue> CallResult =
+ TLI.LowerCallTo(Chain, Type::VoidTy,
+ false, false, false, CallingConv::C, false,
+ getExternalSymbol("memcpy", TLI.getPointerTy()),
+ Args, *this);
+ return CallResult.second;
+}
+
+SDValue SelectionDAG::getMemmove(SDValue Chain, SDValue Dst,
+ SDValue Src, SDValue Size,
+ unsigned Align,
+ const Value *DstSV, uint64_t DstSVOff,
+ const Value *SrcSV, uint64_t SrcSVOff) {
+
+ // Check to see if we should lower the memmove to loads and stores first.
+ // For cases within the target-specified limits, this is the best choice.
+ ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
+ if (ConstantSize) {
+ // Memmove with size zero? Just return the original chain.
+ if (ConstantSize->isNullValue())
+ return Chain;
+
+ SDValue Result =
+ getMemmoveLoadsAndStores(*this, Chain, Dst, Src, ConstantSize->getValue(),
+ Align, false, DstSV, DstSVOff, SrcSV, SrcSVOff);
+ if (Result.Val)
+ return Result;
+ }
+
+ // Then check to see if we should lower the memmove with target-specific
+ // code. If the target chooses to do this, this is the next best.
+ SDValue Result =
+ TLI.EmitTargetCodeForMemmove(*this, Chain, Dst, Src, Size, Align,
+ DstSV, DstSVOff, SrcSV, SrcSVOff);
+ if (Result.Val)
+ return Result;
+
+ // Emit a library call.
+ TargetLowering::ArgListTy Args;
+ TargetLowering::ArgListEntry Entry;
+ Entry.Ty = TLI.getTargetData()->getIntPtrType();
+ Entry.Node = Dst; Args.push_back(Entry);
+ Entry.Node = Src; Args.push_back(Entry);
+ Entry.Node = Size; Args.push_back(Entry);
+ std::pair<SDValue,SDValue> CallResult =
+ TLI.LowerCallTo(Chain, Type::VoidTy,
+ false, false, false, CallingConv::C, false,
+ getExternalSymbol("memmove", TLI.getPointerTy()),
+ Args, *this);
+ return CallResult.second;
+}
+
+SDValue SelectionDAG::getMemset(SDValue Chain, SDValue Dst,
+ SDValue Src, SDValue Size,
+ unsigned Align,
+ const Value *DstSV, uint64_t DstSVOff) {
+
+ // Check to see if we should lower the memset to stores first.
+ // For cases within the target-specified limits, this is the best choice.
+ ConstantSDNode *ConstantSize = dyn_cast<ConstantSDNode>(Size);
+ if (ConstantSize) {
+ // Memset with size zero? Just return the original chain.
+ if (ConstantSize->isNullValue())
+ return Chain;
+
+ SDValue Result =
+ getMemsetStores(*this, Chain, Dst, Src, ConstantSize->getValue(), Align,
+ DstSV, DstSVOff);
+ if (Result.Val)
+ return Result;
+ }
+
+ // Then check to see if we should lower the memset with target-specific
+ // code. If the target chooses to do this, this is the next best.
+ SDValue Result =
+ TLI.EmitTargetCodeForMemset(*this, Chain, Dst, Src, Size, Align,
+ DstSV, DstSVOff);
+ if (Result.Val)
+ return Result;
+
+ // Emit a library call.
+ const Type *IntPtrTy = TLI.getTargetData()->getIntPtrType();
+ TargetLowering::ArgListTy Args;
+ TargetLowering::ArgListEntry Entry;
+ Entry.Node = Dst; Entry.Ty = IntPtrTy;
+ Args.push_back(Entry);
+ // Extend or truncate the argument to be an i32 value for the call.
+ if (Src.getValueType().bitsGT(MVT::i32))
+ Src = getNode(ISD::TRUNCATE, MVT::i32, Src);
+ else
+ Src = getNode(ISD::ZERO_EXTEND, MVT::i32, Src);
+ Entry.Node = Src; Entry.Ty = Type::Int32Ty; Entry.isSExt = true;
+ Args.push_back(Entry);
+ Entry.Node = Size; Entry.Ty = IntPtrTy; Entry.isSExt = false;
+ Args.push_back(Entry);
+ std::pair<SDValue,SDValue> CallResult =
+ TLI.LowerCallTo(Chain, Type::VoidTy,
+ false, false, false, CallingConv::C, false,
+ getExternalSymbol("memset", TLI.getPointerTy()),
+ Args, *this);
+ return CallResult.second;
+}
+
+SDValue SelectionDAG::getAtomic(unsigned Opcode, SDValue Chain,
+ SDValue Ptr, SDValue Cmp,
+ SDValue Swp, const Value* PtrVal,
+ unsigned Alignment) {
+ assert(Opcode == ISD::ATOMIC_CMP_SWAP && "Invalid Atomic Op");
assert(Cmp.getValueType() == Swp.getValueType() && "Invalid Atomic Op Types");
- SDVTList VTs = getVTList(Cmp.getValueType(), MVT::Other);
+
+ MVT VT = Cmp.getValueType();
+
+ if (Alignment == 0) // Ensure that codegen never sees alignment 0
+ Alignment = getMVTAlignment(VT);
+
+ SDVTList VTs = getVTList(VT, MVT::Other);
FoldingSetNodeID ID;
- SDOperand Ops[] = {Chain, Ptr, Cmp, Swp};
+ SDValue Ops[] = {Chain, Ptr, Cmp, Swp};
AddNodeIDNode(ID, Opcode, VTs, Ops, 4);
- ID.AddInteger((unsigned int)VT);
void* IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode* N = new AtomicSDNode(Opcode, VTs, Chain, Ptr, Cmp, Swp, VT);
+ return SDValue(E, 0);
+ SDNode* N = getAllocator().Allocate<AtomicSDNode>();
+ new (N) AtomicSDNode(Opcode, VTs, Chain, Ptr, Cmp, Swp, PtrVal, Alignment);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
-}
-
-SDOperand SelectionDAG::getAtomic(unsigned Opcode, SDOperand Chain,
- SDOperand Ptr, SDOperand Val,
- MVT::ValueType VT) {
- assert((Opcode == ISD::ATOMIC_LAS || Opcode == ISD::ATOMIC_SWAP)
+ return SDValue(N, 0);
+}
+
+SDValue SelectionDAG::getAtomic(unsigned Opcode, SDValue Chain,
+ SDValue Ptr, SDValue Val,
+ const Value* PtrVal,
+ unsigned Alignment) {
+ assert(( Opcode == ISD::ATOMIC_LOAD_ADD || Opcode == ISD::ATOMIC_LOAD_SUB
+ || Opcode == ISD::ATOMIC_SWAP || Opcode == ISD::ATOMIC_LOAD_AND
+ || Opcode == ISD::ATOMIC_LOAD_OR || Opcode == ISD::ATOMIC_LOAD_XOR
+ || Opcode == ISD::ATOMIC_LOAD_NAND
+ || Opcode == ISD::ATOMIC_LOAD_MIN || Opcode == ISD::ATOMIC_LOAD_MAX
+ || Opcode == ISD::ATOMIC_LOAD_UMIN || Opcode == ISD::ATOMIC_LOAD_UMAX)
&& "Invalid Atomic Op");
- SDVTList VTs = getVTList(Val.getValueType(), MVT::Other);
+
+ MVT VT = Val.getValueType();
+
+ if (Alignment == 0) // Ensure that codegen never sees alignment 0
+ Alignment = getMVTAlignment(VT);
+
+ SDVTList VTs = getVTList(VT, MVT::Other);
FoldingSetNodeID ID;
- SDOperand Ops[] = {Chain, Ptr, Val};
+ SDValue Ops[] = {Chain, Ptr, Val};
AddNodeIDNode(ID, Opcode, VTs, Ops, 3);
- ID.AddInteger((unsigned int)VT);
void* IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode* N = new AtomicSDNode(Opcode, VTs, Chain, Ptr, Val, VT);
+ return SDValue(E, 0);
+ SDNode* N = getAllocator().Allocate<AtomicSDNode>();
+ new (N) AtomicSDNode(Opcode, VTs, Chain, Ptr, Val, PtrVal, Alignment);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
-}
-
-SDOperand SelectionDAG::getLoad(MVT::ValueType VT,
- SDOperand Chain, SDOperand Ptr,
- const Value *SV, int SVOffset,
- bool isVolatile, unsigned Alignment) {
- if (Alignment == 0) { // Ensure that codegen never sees alignment 0
- const Type *Ty = 0;
- if (VT != MVT::iPTR) {
- Ty = MVT::getTypeForValueType(VT);
- } else if (SV) {
- const PointerType *PT = dyn_cast<PointerType>(SV->getType());
- assert(PT && "Value for load must be a pointer");
- Ty = PT->getElementType();
- }
- assert(Ty && "Could not get type information for load");
- Alignment = TLI.getTargetData()->getABITypeAlignment(Ty);
+ return SDValue(N, 0);
+}
+
+/// getMergeValues - Create a MERGE_VALUES node from the given operands.
+/// Allowed to return something different (and simpler) if Simplify is true.
+SDValue SelectionDAG::getMergeValues(const SDValue *Ops, unsigned NumOps,
+ bool Simplify) {
+ if (Simplify && NumOps == 1)
+ return Ops[0];
+
+ SmallVector<MVT, 4> VTs;
+ VTs.reserve(NumOps);
+ for (unsigned i = 0; i < NumOps; ++i)
+ VTs.push_back(Ops[i].getValueType());
+ return getNode(ISD::MERGE_VALUES, getVTList(&VTs[0], NumOps), Ops, NumOps);
+}
+
+SDValue
+SelectionDAG::getLoad(ISD::MemIndexedMode AM, ISD::LoadExtType ExtType,
+ MVT VT, SDValue Chain,
+ SDValue Ptr, SDValue Offset,
+ const Value *SV, int SVOffset, MVT EVT,
+ bool isVolatile, unsigned Alignment) {
+ if (Alignment == 0) // Ensure that codegen never sees alignment 0
+ Alignment = getMVTAlignment(VT);
+
+ if (VT == EVT) {
+ ExtType = ISD::NON_EXTLOAD;
+ } else if (ExtType == ISD::NON_EXTLOAD) {
+ assert(VT == EVT && "Non-extending load from different memory type!");
+ } else {
+ // Extending load.
+ if (VT.isVector())
+ assert(EVT == VT.getVectorElementType() && "Invalid vector extload!");
+ else
+ assert(EVT.bitsLT(VT) &&
+ "Should only be an extending load, not truncating!");
+ assert((ExtType == ISD::EXTLOAD || VT.isInteger()) &&
+ "Cannot sign/zero extend a FP/Vector load!");
+ assert(VT.isInteger() == EVT.isInteger() &&
+ "Cannot convert from FP to Int or Int -> FP!");
}
- SDVTList VTs = getVTList(VT, MVT::Other);
- SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
- SDOperand Ops[] = { Chain, Ptr, Undef };
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::LOAD, VTs, Ops, 3);
- ID.AddInteger(ISD::UNINDEXED);
- ID.AddInteger(ISD::NON_EXTLOAD);
- ID.AddInteger((unsigned int)VT);
- ID.AddInteger(Alignment);
- ID.AddInteger(isVolatile);
- void *IP = 0;
- if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new LoadSDNode(Ops, VTs, ISD::UNINDEXED,
- ISD::NON_EXTLOAD, VT, SV, SVOffset, Alignment,
- isVolatile);
- CSEMap.InsertNode(N, IP);
- AllNodes.push_back(N);
- return SDOperand(N, 0);
-}
-SDOperand SelectionDAG::getExtLoad(ISD::LoadExtType ExtType, MVT::ValueType VT,
- SDOperand Chain, SDOperand Ptr,
- const Value *SV,
- int SVOffset, MVT::ValueType EVT,
- bool isVolatile, unsigned Alignment) {
- // If they are asking for an extending load from/to the same thing, return a
- // normal load.
- if (VT == EVT)
- return getLoad(VT, Chain, Ptr, SV, SVOffset, isVolatile, Alignment);
+ bool Indexed = AM != ISD::UNINDEXED;
+ assert((Indexed || Offset.getOpcode() == ISD::UNDEF) &&
+ "Unindexed load with an offset!");
- if (MVT::isVector(VT))
- assert(EVT == MVT::getVectorElementType(VT) && "Invalid vector extload!");
- else
- assert(MVT::getSizeInBits(EVT) < MVT::getSizeInBits(VT) &&
- "Should only be an extending load, not truncating!");
- assert((ExtType == ISD::EXTLOAD || MVT::isInteger(VT)) &&
- "Cannot sign/zero extend a FP/Vector load!");
- assert(MVT::isInteger(VT) == MVT::isInteger(EVT) &&
- "Cannot convert from FP to Int or Int -> FP!");
-
- if (Alignment == 0) { // Ensure that codegen never sees alignment 0
- const Type *Ty = 0;
- if (VT != MVT::iPTR) {
- Ty = MVT::getTypeForValueType(VT);
- } else if (SV) {
- const PointerType *PT = dyn_cast<PointerType>(SV->getType());
- assert(PT && "Value for load must be a pointer");
- Ty = PT->getElementType();
- }
- assert(Ty && "Could not get type information for load");
- Alignment = TLI.getTargetData()->getABITypeAlignment(Ty);
- }
- SDVTList VTs = getVTList(VT, MVT::Other);
- SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
- SDOperand Ops[] = { Chain, Ptr, Undef };
+ SDVTList VTs = Indexed ?
+ getVTList(VT, Ptr.getValueType(), MVT::Other) : getVTList(VT, MVT::Other);
+ SDValue Ops[] = { Chain, Ptr, Offset };
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::LOAD, VTs, Ops, 3);
- ID.AddInteger(ISD::UNINDEXED);
+ ID.AddInteger(AM);
ID.AddInteger(ExtType);
- ID.AddInteger((unsigned int)EVT);
+ ID.AddInteger(EVT.getRawBits());
ID.AddInteger(Alignment);
ID.AddInteger(isVolatile);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new LoadSDNode(Ops, VTs, ISD::UNINDEXED, ExtType, EVT,
- SV, SVOffset, Alignment, isVolatile);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<LoadSDNode>();
+ new (N) LoadSDNode(Ops, VTs, AM, ExtType, EVT, SV, SVOffset,
+ Alignment, isVolatile);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand
-SelectionDAG::getIndexedLoad(SDOperand OrigLoad, SDOperand Base,
- SDOperand Offset, ISD::MemIndexedMode AM) {
+SDValue SelectionDAG::getLoad(MVT VT,
+ SDValue Chain, SDValue Ptr,
+ const Value *SV, int SVOffset,
+ bool isVolatile, unsigned Alignment) {
+ SDValue Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ return getLoad(ISD::UNINDEXED, ISD::NON_EXTLOAD, VT, Chain, Ptr, Undef,
+ SV, SVOffset, VT, isVolatile, Alignment);
+}
+
+SDValue SelectionDAG::getExtLoad(ISD::LoadExtType ExtType, MVT VT,
+ SDValue Chain, SDValue Ptr,
+ const Value *SV,
+ int SVOffset, MVT EVT,
+ bool isVolatile, unsigned Alignment) {
+ SDValue Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ return getLoad(ISD::UNINDEXED, ExtType, VT, Chain, Ptr, Undef,
+ SV, SVOffset, EVT, isVolatile, Alignment);
+}
+
+SDValue
+SelectionDAG::getIndexedLoad(SDValue OrigLoad, SDValue Base,
+ SDValue Offset, ISD::MemIndexedMode AM) {
LoadSDNode *LD = cast<LoadSDNode>(OrigLoad);
assert(LD->getOffset().getOpcode() == ISD::UNDEF &&
"Load is already a indexed load!");
- MVT::ValueType VT = OrigLoad.getValueType();
- SDVTList VTs = getVTList(VT, Base.getValueType(), MVT::Other);
- SDOperand Ops[] = { LD->getChain(), Base, Offset };
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::LOAD, VTs, Ops, 3);
- ID.AddInteger(AM);
- ID.AddInteger(LD->getExtensionType());
- ID.AddInteger((unsigned int)(LD->getMemoryVT()));
- ID.AddInteger(LD->getAlignment());
- ID.AddInteger(LD->isVolatile());
- void *IP = 0;
- if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new LoadSDNode(Ops, VTs, AM,
- LD->getExtensionType(), LD->getMemoryVT(),
- LD->getSrcValue(), LD->getSrcValueOffset(),
- LD->getAlignment(), LD->isVolatile());
- CSEMap.InsertNode(N, IP);
- AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return getLoad(AM, LD->getExtensionType(), OrigLoad.getValueType(),
+ LD->getChain(), Base, Offset, LD->getSrcValue(),
+ LD->getSrcValueOffset(), LD->getMemoryVT(),
+ LD->isVolatile(), LD->getAlignment());
}
-SDOperand SelectionDAG::getStore(SDOperand Chain, SDOperand Val,
- SDOperand Ptr, const Value *SV, int SVOffset,
- bool isVolatile, unsigned Alignment) {
- MVT::ValueType VT = Val.getValueType();
-
- if (Alignment == 0) { // Ensure that codegen never sees alignment 0
- const Type *Ty = 0;
- if (VT != MVT::iPTR) {
- Ty = MVT::getTypeForValueType(VT);
- } else if (SV) {
- const PointerType *PT = dyn_cast<PointerType>(SV->getType());
- assert(PT && "Value for store must be a pointer");
- Ty = PT->getElementType();
- }
- assert(Ty && "Could not get type information for store");
- Alignment = TLI.getTargetData()->getABITypeAlignment(Ty);
- }
+SDValue SelectionDAG::getStore(SDValue Chain, SDValue Val,
+ SDValue Ptr, const Value *SV, int SVOffset,
+ bool isVolatile, unsigned Alignment) {
+ MVT VT = Val.getValueType();
+
+ if (Alignment == 0) // Ensure that codegen never sees alignment 0
+ Alignment = getMVTAlignment(VT);
+
SDVTList VTs = getVTList(MVT::Other);
- SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
- SDOperand Ops[] = { Chain, Val, Ptr, Undef };
+ SDValue Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ SDValue Ops[] = { Chain, Val, Ptr, Undef };
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(ISD::UNINDEXED);
ID.AddInteger(false);
- ID.AddInteger((unsigned int)VT);
+ ID.AddInteger(VT.getRawBits());
ID.AddInteger(Alignment);
ID.AddInteger(isVolatile);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new StoreSDNode(Ops, VTs, ISD::UNINDEXED, false,
- VT, SV, SVOffset, Alignment, isVolatile);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<StoreSDNode>();
+ new (N) StoreSDNode(Ops, VTs, ISD::UNINDEXED, false,
+ VT, SV, SVOffset, Alignment, isVolatile);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getTruncStore(SDOperand Chain, SDOperand Val,
- SDOperand Ptr, const Value *SV,
- int SVOffset, MVT::ValueType SVT,
- bool isVolatile, unsigned Alignment) {
- MVT::ValueType VT = Val.getValueType();
+SDValue SelectionDAG::getTruncStore(SDValue Chain, SDValue Val,
+ SDValue Ptr, const Value *SV,
+ int SVOffset, MVT SVT,
+ bool isVolatile, unsigned Alignment) {
+ MVT VT = Val.getValueType();
if (VT == SVT)
return getStore(Chain, Val, Ptr, SV, SVOffset, isVolatile, Alignment);
- assert(MVT::getSizeInBits(VT) > MVT::getSizeInBits(SVT) &&
- "Not a truncation?");
- assert(MVT::isInteger(VT) == MVT::isInteger(SVT) &&
+ assert(VT.bitsGT(SVT) && "Not a truncation?");
+ assert(VT.isInteger() == SVT.isInteger() &&
"Can't do FP-INT conversion!");
- if (Alignment == 0) { // Ensure that codegen never sees alignment 0
- const Type *Ty = 0;
- if (VT != MVT::iPTR) {
- Ty = MVT::getTypeForValueType(VT);
- } else if (SV) {
- const PointerType *PT = dyn_cast<PointerType>(SV->getType());
- assert(PT && "Value for store must be a pointer");
- Ty = PT->getElementType();
- }
- assert(Ty && "Could not get type information for store");
- Alignment = TLI.getTargetData()->getABITypeAlignment(Ty);
- }
+ if (Alignment == 0) // Ensure that codegen never sees alignment 0
+ Alignment = getMVTAlignment(VT);
+
SDVTList VTs = getVTList(MVT::Other);
- SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
- SDOperand Ops[] = { Chain, Val, Ptr, Undef };
+ SDValue Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ SDValue Ops[] = { Chain, Val, Ptr, Undef };
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(ISD::UNINDEXED);
ID.AddInteger(1);
- ID.AddInteger((unsigned int)SVT);
+ ID.AddInteger(SVT.getRawBits());
ID.AddInteger(Alignment);
ID.AddInteger(isVolatile);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new StoreSDNode(Ops, VTs, ISD::UNINDEXED, true,
- SVT, SV, SVOffset, Alignment, isVolatile);
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<StoreSDNode>();
+ new (N) StoreSDNode(Ops, VTs, ISD::UNINDEXED, true,
+ SVT, SV, SVOffset, Alignment, isVolatile);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand
-SelectionDAG::getIndexedStore(SDOperand OrigStore, SDOperand Base,
- SDOperand Offset, ISD::MemIndexedMode AM) {
+SDValue
+SelectionDAG::getIndexedStore(SDValue OrigStore, SDValue Base,
+ SDValue Offset, ISD::MemIndexedMode AM) {
StoreSDNode *ST = cast<StoreSDNode>(OrigStore);
assert(ST->getOffset().getOpcode() == ISD::UNDEF &&
"Store is already a indexed store!");
SDVTList VTs = getVTList(Base.getValueType(), MVT::Other);
- SDOperand Ops[] = { ST->getChain(), ST->getValue(), Base, Offset };
+ SDValue Ops[] = { ST->getChain(), ST->getValue(), Base, Offset };
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(AM);
ID.AddInteger(ST->isTruncatingStore());
- ID.AddInteger((unsigned int)(ST->getMemoryVT()));
+ ID.AddInteger(ST->getMemoryVT().getRawBits());
ID.AddInteger(ST->getAlignment());
ID.AddInteger(ST->isVolatile());
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- SDNode *N = new StoreSDNode(Ops, VTs, AM,
- ST->isTruncatingStore(), ST->getMemoryVT(),
- ST->getSrcValue(), ST->getSrcValueOffset(),
- ST->getAlignment(), ST->isVolatile());
+ return SDValue(E, 0);
+ SDNode *N = getAllocator().Allocate<StoreSDNode>();
+ new (N) StoreSDNode(Ops, VTs, AM,
+ ST->isTruncatingStore(), ST->getMemoryVT(),
+ ST->getSrcValue(), ST->getSrcValueOffset(),
+ ST->getAlignment(), ST->isVolatile());
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
- return SDOperand(N, 0);
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getVAArg(MVT::ValueType VT,
- SDOperand Chain, SDOperand Ptr,
- SDOperand SV) {
- SDOperand Ops[] = { Chain, Ptr, SV };
+SDValue SelectionDAG::getVAArg(MVT VT,
+ SDValue Chain, SDValue Ptr,
+ SDValue SV) {
+ SDValue Ops[] = { Chain, Ptr, SV };
return getNode(ISD::VAARG, getVTList(VT, MVT::Other), Ops, 3);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT,
- const SDOperand *Ops, unsigned NumOps) {
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT,
+ const SDUse *Ops, unsigned NumOps) {
+ switch (NumOps) {
+ case 0: return getNode(Opcode, VT);
+ case 1: return getNode(Opcode, VT, Ops[0]);
+ case 2: return getNode(Opcode, VT, Ops[0], Ops[1]);
+ case 3: return getNode(Opcode, VT, Ops[0], Ops[1], Ops[2]);
+ default: break;
+ }
+
+ // Copy from an SDUse array into an SDValue array for use with
+ // the regular getNode logic.
+ SmallVector<SDValue, 8> NewOps(Ops, Ops + NumOps);
+ return getNode(Opcode, VT, &NewOps[0], NumOps);
+}
+
+SDValue SelectionDAG::getNode(unsigned Opcode, MVT VT,
+ const SDValue *Ops, unsigned NumOps) {
switch (NumOps) {
case 0: return getNode(Opcode, VT);
case 1: return getNode(Opcode, VT, Ops[0]);
AddNodeIDNode(ID, Opcode, VTs, Ops, NumOps);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- N = new SDNode(Opcode, VTs, Ops, NumOps);
+ return SDValue(E, 0);
+ N = getAllocator().Allocate<SDNode>();
+ new (N) SDNode(Opcode, VTs, Ops, NumOps);
CSEMap.InsertNode(N, IP);
} else {
- N = new SDNode(Opcode, VTs, Ops, NumOps);
+ N = getAllocator().Allocate<SDNode>();
+ new (N) SDNode(Opcode, VTs, Ops, NumOps);
}
AllNodes.push_back(N);
- return SDOperand(N, 0);
+#ifndef NDEBUG
+ VerifyNode(N);
+#endif
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode,
- std::vector<MVT::ValueType> &ResultTys,
- const SDOperand *Ops, unsigned NumOps) {
+SDValue SelectionDAG::getNode(unsigned Opcode,
+ const std::vector<MVT> &ResultTys,
+ const SDValue *Ops, unsigned NumOps) {
return getNode(Opcode, getNodeValueTypes(ResultTys), ResultTys.size(),
Ops, NumOps);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode,
- const MVT::ValueType *VTs, unsigned NumVTs,
- const SDOperand *Ops, unsigned NumOps) {
+SDValue SelectionDAG::getNode(unsigned Opcode,
+ const MVT *VTs, unsigned NumVTs,
+ const SDValue *Ops, unsigned NumOps) {
if (NumVTs == 1)
return getNode(Opcode, VTs[0], Ops, NumOps);
return getNode(Opcode, makeVTList(VTs, NumVTs), Ops, NumOps);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
- const SDOperand *Ops, unsigned NumOps) {
+SDValue SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
+ const SDValue *Ops, unsigned NumOps) {
if (VTList.NumVTs == 1)
return getNode(Opcode, VTList.VTs[0], Ops, NumOps);
if (ConstantSDNode *AndRHS = dyn_cast<ConstantSDNode>(N3.getOperand(1))) {
// If the and is only masking out bits that cannot effect the shift,
// eliminate the and.
- unsigned NumBits = MVT::getSizeInBits(VT)*2;
+ unsigned NumBits = VT.getSizeInBits()*2;
if ((AndRHS->getValue() & (NumBits-1)) == NumBits-1)
return getNode(Opcode, VT, N1, N2, N3.getOperand(0));
}
AddNodeIDNode(ID, Opcode, VTList, Ops, NumOps);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
- return SDOperand(E, 0);
- if (NumOps == 1)
- N = new UnarySDNode(Opcode, VTList, Ops[0]);
- else if (NumOps == 2)
- N = new BinarySDNode(Opcode, VTList, Ops[0], Ops[1]);
- else if (NumOps == 3)
- N = new TernarySDNode(Opcode, VTList, Ops[0], Ops[1], Ops[2]);
- else
- N = new SDNode(Opcode, VTList, Ops, NumOps);
+ return SDValue(E, 0);
+ if (NumOps == 1) {
+ N = getAllocator().Allocate<UnarySDNode>();
+ new (N) UnarySDNode(Opcode, VTList, Ops[0]);
+ } else if (NumOps == 2) {
+ N = getAllocator().Allocate<BinarySDNode>();
+ new (N) BinarySDNode(Opcode, VTList, Ops[0], Ops[1]);
+ } else if (NumOps == 3) {
+ N = getAllocator().Allocate<TernarySDNode>();
+ new (N) TernarySDNode(Opcode, VTList, Ops[0], Ops[1], Ops[2]);
+ } else {
+ N = getAllocator().Allocate<SDNode>();
+ new (N) SDNode(Opcode, VTList, Ops, NumOps);
+ }
CSEMap.InsertNode(N, IP);
} else {
- if (NumOps == 1)
- N = new UnarySDNode(Opcode, VTList, Ops[0]);
- else if (NumOps == 2)
- N = new BinarySDNode(Opcode, VTList, Ops[0], Ops[1]);
- else if (NumOps == 3)
- N = new TernarySDNode(Opcode, VTList, Ops[0], Ops[1], Ops[2]);
- else
- N = new SDNode(Opcode, VTList, Ops, NumOps);
+ if (NumOps == 1) {
+ N = getAllocator().Allocate<UnarySDNode>();
+ new (N) UnarySDNode(Opcode, VTList, Ops[0]);
+ } else if (NumOps == 2) {
+ N = getAllocator().Allocate<BinarySDNode>();
+ new (N) BinarySDNode(Opcode, VTList, Ops[0], Ops[1]);
+ } else if (NumOps == 3) {
+ N = getAllocator().Allocate<TernarySDNode>();
+ new (N) TernarySDNode(Opcode, VTList, Ops[0], Ops[1], Ops[2]);
+ } else {
+ N = getAllocator().Allocate<SDNode>();
+ new (N) SDNode(Opcode, VTList, Ops, NumOps);
+ }
}
AllNodes.push_back(N);
- return SDOperand(N, 0);
+#ifndef NDEBUG
+ VerifyNode(N);
+#endif
+ return SDValue(N, 0);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, SDVTList VTList) {
+SDValue SelectionDAG::getNode(unsigned Opcode, SDVTList VTList) {
return getNode(Opcode, VTList, 0, 0);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
- SDOperand N1) {
- SDOperand Ops[] = { N1 };
+SDValue SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
+ SDValue N1) {
+ SDValue Ops[] = { N1 };
return getNode(Opcode, VTList, Ops, 1);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
- SDOperand N1, SDOperand N2) {
- SDOperand Ops[] = { N1, N2 };
+SDValue SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
+ SDValue N1, SDValue N2) {
+ SDValue Ops[] = { N1, N2 };
return getNode(Opcode, VTList, Ops, 2);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
- SDOperand N1, SDOperand N2, SDOperand N3) {
- SDOperand Ops[] = { N1, N2, N3 };
+SDValue SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
+ SDValue N1, SDValue N2, SDValue N3) {
+ SDValue Ops[] = { N1, N2, N3 };
return getNode(Opcode, VTList, Ops, 3);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
- SDOperand N1, SDOperand N2, SDOperand N3,
- SDOperand N4) {
- SDOperand Ops[] = { N1, N2, N3, N4 };
+SDValue SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
+ SDValue N1, SDValue N2, SDValue N3,
+ SDValue N4) {
+ SDValue Ops[] = { N1, N2, N3, N4 };
return getNode(Opcode, VTList, Ops, 4);
}
-SDOperand SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
- SDOperand N1, SDOperand N2, SDOperand N3,
- SDOperand N4, SDOperand N5) {
- SDOperand Ops[] = { N1, N2, N3, N4, N5 };
+SDValue SelectionDAG::getNode(unsigned Opcode, SDVTList VTList,
+ SDValue N1, SDValue N2, SDValue N3,
+ SDValue N4, SDValue N5) {
+ SDValue Ops[] = { N1, N2, N3, N4, N5 };
return getNode(Opcode, VTList, Ops, 5);
}
-SDVTList SelectionDAG::getVTList(MVT::ValueType VT) {
+SDVTList SelectionDAG::getVTList(MVT VT) {
return makeVTList(SDNode::getValueTypeList(VT), 1);
}
-SDVTList SelectionDAG::getVTList(MVT::ValueType VT1, MVT::ValueType VT2) {
- for (std::list<std::vector<MVT::ValueType> >::iterator I = VTList.begin(),
- E = VTList.end(); I != E; ++I) {
- if (I->size() == 2 && (*I)[0] == VT1 && (*I)[1] == VT2)
- return makeVTList(&(*I)[0], 2);
- }
- std::vector<MVT::ValueType> V;
- V.push_back(VT1);
- V.push_back(VT2);
- VTList.push_front(V);
- return makeVTList(&(*VTList.begin())[0], 2);
+SDVTList SelectionDAG::getVTList(MVT VT1, MVT VT2) {
+ for (std::vector<SDVTList>::reverse_iterator I = VTList.rbegin(),
+ E = VTList.rend(); I != E; ++I)
+ if (I->NumVTs == 2 && I->VTs[0] == VT1 && I->VTs[1] == VT2)
+ return *I;
+
+ MVT *Array = Allocator.Allocate<MVT>(2);
+ Array[0] = VT1;
+ Array[1] = VT2;
+ SDVTList Result = makeVTList(Array, 2);
+ VTList.push_back(Result);
+ return Result;
}
-SDVTList SelectionDAG::getVTList(MVT::ValueType VT1, MVT::ValueType VT2,
- MVT::ValueType VT3) {
- for (std::list<std::vector<MVT::ValueType> >::iterator I = VTList.begin(),
- E = VTList.end(); I != E; ++I) {
- if (I->size() == 3 && (*I)[0] == VT1 && (*I)[1] == VT2 &&
- (*I)[2] == VT3)
- return makeVTList(&(*I)[0], 3);
- }
- std::vector<MVT::ValueType> V;
- V.push_back(VT1);
- V.push_back(VT2);
- V.push_back(VT3);
- VTList.push_front(V);
- return makeVTList(&(*VTList.begin())[0], 3);
+
+SDVTList SelectionDAG::getVTList(MVT VT1, MVT VT2, MVT VT3) {
+ for (std::vector<SDVTList>::reverse_iterator I = VTList.rbegin(),
+ E = VTList.rend(); I != E; ++I)
+ if (I->NumVTs == 3 && I->VTs[0] == VT1 && I->VTs[1] == VT2 &&
+ I->VTs[2] == VT3)
+ return *I;
+
+ MVT *Array = Allocator.Allocate<MVT>(3);
+ Array[0] = VT1;
+ Array[1] = VT2;
+ Array[2] = VT3;
+ SDVTList Result = makeVTList(Array, 3);
+ VTList.push_back(Result);
+ return Result;
}
-SDVTList SelectionDAG::getVTList(const MVT::ValueType *VTs, unsigned NumVTs) {
+SDVTList SelectionDAG::getVTList(const MVT *VTs, unsigned NumVTs) {
switch (NumVTs) {
case 0: assert(0 && "Cannot have nodes without results!");
case 1: return getVTList(VTs[0]);
default: break;
}
- for (std::list<std::vector<MVT::ValueType> >::iterator I = VTList.begin(),
- E = VTList.end(); I != E; ++I) {
- if (I->size() != NumVTs || VTs[0] != (*I)[0] || VTs[1] != (*I)[1]) continue;
+ for (std::vector<SDVTList>::reverse_iterator I = VTList.rbegin(),
+ E = VTList.rend(); I != E; ++I) {
+ if (I->NumVTs != NumVTs || VTs[0] != I->VTs[0] || VTs[1] != I->VTs[1])
+ continue;
bool NoMatch = false;
for (unsigned i = 2; i != NumVTs; ++i)
- if (VTs[i] != (*I)[i]) {
+ if (VTs[i] != I->VTs[i]) {
NoMatch = true;
break;
}
if (!NoMatch)
- return makeVTList(&*I->begin(), NumVTs);
+ return *I;
}
- VTList.push_front(std::vector<MVT::ValueType>(VTs, VTs+NumVTs));
- return makeVTList(&*VTList.begin()->begin(), NumVTs);
+ MVT *Array = Allocator.Allocate<MVT>(NumVTs);
+ std::copy(VTs, VTs+NumVTs, Array);
+ SDVTList Result = makeVTList(Array, NumVTs);
+ VTList.push_back(Result);
+ return Result;
}
/// already exists. If the resultant node does not exist in the DAG, the
/// input node is returned. As a degenerate case, if you specify the same
/// input operands as the node already has, the input node is returned.
-SDOperand SelectionDAG::
-UpdateNodeOperands(SDOperand InN, SDOperand Op) {
+SDValue SelectionDAG::UpdateNodeOperands(SDValue InN, SDValue Op) {
SDNode *N = InN.Val;
assert(N->getNumOperands() == 1 && "Update with wrong number of operands");
// See if the modified node already exists.
void *InsertPos = 0;
if (SDNode *Existing = FindModifiedNodeSlot(N, Op, InsertPos))
- return SDOperand(Existing, InN.ResNo);
+ return SDValue(Existing, InN.ResNo);
- // Nope it doesn't. Remove the node from it's current place in the maps.
+ // Nope it doesn't. Remove the node from its current place in the maps.
if (InsertPos)
RemoveNodeFromCSEMaps(N);
// Now we update the operands.
- N->OperandList[0].Val->removeUser(N);
- Op.Val->addUser(N);
+ N->OperandList[0].getVal()->removeUser(0, N);
N->OperandList[0] = Op;
+ N->OperandList[0].setUser(N);
+ Op.Val->addUser(0, N);
// If this gets put into a CSE map, add it.
if (InsertPos) CSEMap.InsertNode(N, InsertPos);
return InN;
}
-SDOperand SelectionDAG::
-UpdateNodeOperands(SDOperand InN, SDOperand Op1, SDOperand Op2) {
+SDValue SelectionDAG::
+UpdateNodeOperands(SDValue InN, SDValue Op1, SDValue Op2) {
SDNode *N = InN.Val;
assert(N->getNumOperands() == 2 && "Update with wrong number of operands");
// See if the modified node already exists.
void *InsertPos = 0;
if (SDNode *Existing = FindModifiedNodeSlot(N, Op1, Op2, InsertPos))
- return SDOperand(Existing, InN.ResNo);
+ return SDValue(Existing, InN.ResNo);
- // Nope it doesn't. Remove the node from it's current place in the maps.
+ // Nope it doesn't. Remove the node from its current place in the maps.
if (InsertPos)
RemoveNodeFromCSEMaps(N);
// Now we update the operands.
if (N->OperandList[0] != Op1) {
- N->OperandList[0].Val->removeUser(N);
- Op1.Val->addUser(N);
+ N->OperandList[0].getVal()->removeUser(0, N);
N->OperandList[0] = Op1;
+ N->OperandList[0].setUser(N);
+ Op1.Val->addUser(0, N);
}
if (N->OperandList[1] != Op2) {
- N->OperandList[1].Val->removeUser(N);
- Op2.Val->addUser(N);
+ N->OperandList[1].getVal()->removeUser(1, N);
N->OperandList[1] = Op2;
+ N->OperandList[1].setUser(N);
+ Op2.Val->addUser(1, N);
}
// If this gets put into a CSE map, add it.
return InN;
}
-SDOperand SelectionDAG::
-UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2, SDOperand Op3) {
- SDOperand Ops[] = { Op1, Op2, Op3 };
+SDValue SelectionDAG::
+UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2, SDValue Op3) {
+ SDValue Ops[] = { Op1, Op2, Op3 };
return UpdateNodeOperands(N, Ops, 3);
}
-SDOperand SelectionDAG::
-UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2,
- SDOperand Op3, SDOperand Op4) {
- SDOperand Ops[] = { Op1, Op2, Op3, Op4 };
+SDValue SelectionDAG::
+UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2,
+ SDValue Op3, SDValue Op4) {
+ SDValue Ops[] = { Op1, Op2, Op3, Op4 };
return UpdateNodeOperands(N, Ops, 4);
}
-SDOperand SelectionDAG::
-UpdateNodeOperands(SDOperand N, SDOperand Op1, SDOperand Op2,
- SDOperand Op3, SDOperand Op4, SDOperand Op5) {
- SDOperand Ops[] = { Op1, Op2, Op3, Op4, Op5 };
+SDValue SelectionDAG::
+UpdateNodeOperands(SDValue N, SDValue Op1, SDValue Op2,
+ SDValue Op3, SDValue Op4, SDValue Op5) {
+ SDValue Ops[] = { Op1, Op2, Op3, Op4, Op5 };
return UpdateNodeOperands(N, Ops, 5);
}
-
-SDOperand SelectionDAG::
-UpdateNodeOperands(SDOperand InN, SDOperand *Ops, unsigned NumOps) {
+SDValue SelectionDAG::
+UpdateNodeOperands(SDValue InN, const SDValue *Ops, unsigned NumOps) {
SDNode *N = InN.Val;
assert(N->getNumOperands() == NumOps &&
"Update with wrong number of operands");
// See if the modified node already exists.
void *InsertPos = 0;
if (SDNode *Existing = FindModifiedNodeSlot(N, Ops, NumOps, InsertPos))
- return SDOperand(Existing, InN.ResNo);
+ return SDValue(Existing, InN.ResNo);
- // Nope it doesn't. Remove the node from it's current place in the maps.
+ // Nope it doesn't. Remove the node from its current place in the maps.
if (InsertPos)
RemoveNodeFromCSEMaps(N);
// Now we update the operands.
for (unsigned i = 0; i != NumOps; ++i) {
if (N->OperandList[i] != Ops[i]) {
- N->OperandList[i].Val->removeUser(N);
- Ops[i].Val->addUser(N);
+ N->OperandList[i].getVal()->removeUser(i, N);
N->OperandList[i] = Ops[i];
+ N->OperandList[i].setUser(N);
+ Ops[i].Val->addUser(i, N);
}
}
return InN;
}
-
-/// MorphNodeTo - This frees the operands of the current node, resets the
-/// opcode, types, and operands to the specified value. This should only be
-/// used by the SelectionDAG class.
-void SDNode::MorphNodeTo(unsigned Opc, SDVTList L,
- const SDOperand *Ops, unsigned NumOps) {
- NodeType = Opc;
- ValueList = L.VTs;
- NumValues = L.NumVTs;
-
- // Clear the operands list, updating used nodes to remove this from their
- // use list.
+/// DropOperands - Release the operands and set this node to have
+/// zero operands.
+void SDNode::DropOperands() {
+ // Unlike the code in MorphNodeTo that does this, we don't need to
+ // watch for dead nodes here.
for (op_iterator I = op_begin(), E = op_end(); I != E; ++I)
- I->Val->removeUser(this);
-
- // If NumOps is larger than the # of operands we currently have, reallocate
- // the operand list.
- if (NumOps > NumOperands) {
- if (OperandsNeedDelete)
- delete [] OperandList;
- OperandList = new SDOperand[NumOps];
- OperandsNeedDelete = true;
- }
-
- // Assign the new operands.
- NumOperands = NumOps;
-
- for (unsigned i = 0, e = NumOps; i != e; ++i) {
- OperandList[i] = Ops[i];
- SDNode *N = OperandList[i].Val;
- N->Uses.push_back(this);
- }
+ I->getVal()->removeUser(std::distance(op_begin(), I), this);
+
+ NumOperands = 0;
}
-/// SelectNodeTo - These are used for target selectors to *mutate* the
-/// specified node to have the specified return type, Target opcode, and
-/// operands. Note that target opcodes are stored as
-/// ISD::BUILTIN_OP_END+TargetOpcode in the node opcode field.
+/// SelectNodeTo - These are wrappers around MorphNodeTo that accept a
+/// machine opcode.
///
-/// Note that SelectNodeTo returns the resultant node. If there is already a
-/// node of the specified opcode and operands, it returns that node instead of
-/// the current one.
-SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
- MVT::ValueType VT) {
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT) {
SDVTList VTs = getVTList(VT);
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, 0, 0);
- void *IP = 0;
- if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
- return ON;
-
- RemoveNodeFromCSEMaps(N);
-
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, 0, 0);
+ return SelectNodeTo(N, MachineOpc, VTs, 0, 0);
+}
- CSEMap.InsertNode(N, IP);
- return N;
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT, SDValue Op1) {
+ SDVTList VTs = getVTList(VT);
+ SDValue Ops[] = { Op1 };
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, 1);
}
-SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
- MVT::ValueType VT, SDOperand Op1) {
- // If an identical node already exists, use it.
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT, SDValue Op1,
+ SDValue Op2) {
SDVTList VTs = getVTList(VT);
- SDOperand Ops[] = { Op1 };
-
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 1);
- void *IP = 0;
- if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
- return ON;
-
- RemoveNodeFromCSEMaps(N);
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 1);
- CSEMap.InsertNode(N, IP);
- return N;
+ SDValue Ops[] = { Op1, Op2 };
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, 2);
}
-SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
- MVT::ValueType VT, SDOperand Op1,
- SDOperand Op2) {
- // If an identical node already exists, use it.
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT, SDValue Op1,
+ SDValue Op2, SDValue Op3) {
SDVTList VTs = getVTList(VT);
- SDOperand Ops[] = { Op1, Op2 };
-
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 2);
- void *IP = 0;
- if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
- return ON;
-
- RemoveNodeFromCSEMaps(N);
-
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 2);
-
- CSEMap.InsertNode(N, IP); // Memoize the new node.
- return N;
+ SDValue Ops[] = { Op1, Op2, Op3 };
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, 3);
}
-SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
- MVT::ValueType VT, SDOperand Op1,
- SDOperand Op2, SDOperand Op3) {
- // If an identical node already exists, use it.
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT, const SDValue *Ops,
+ unsigned NumOps) {
SDVTList VTs = getVTList(VT);
- SDOperand Ops[] = { Op1, Op2, Op3 };
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 3);
- void *IP = 0;
- if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
- return ON;
-
- RemoveNodeFromCSEMaps(N);
-
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 3);
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, NumOps);
+}
- CSEMap.InsertNode(N, IP); // Memoize the new node.
- return N;
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT1, MVT VT2, const SDValue *Ops,
+ unsigned NumOps) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, NumOps);
+}
+
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT1, MVT VT2) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ return SelectNodeTo(N, MachineOpc, VTs, (SDValue *)0, 0);
+}
+
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT1, MVT VT2, MVT VT3,
+ const SDValue *Ops, unsigned NumOps) {
+ SDVTList VTs = getVTList(VT1, VT2, VT3);
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, NumOps);
+}
+
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT1, MVT VT2,
+ SDValue Op1) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ SDValue Ops[] = { Op1 };
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, 1);
}
-SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
- MVT::ValueType VT, const SDOperand *Ops,
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT1, MVT VT2,
+ SDValue Op1, SDValue Op2) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ SDValue Ops[] = { Op1, Op2 };
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, 2);
+}
+
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ MVT VT1, MVT VT2,
+ SDValue Op1, SDValue Op2,
+ SDValue Op3) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ SDValue Ops[] = { Op1, Op2, Op3 };
+ return SelectNodeTo(N, MachineOpc, VTs, Ops, 3);
+}
+
+SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned MachineOpc,
+ SDVTList VTs, const SDValue *Ops,
unsigned NumOps) {
- // If an identical node already exists, use it.
+ return MorphNodeTo(N, ~MachineOpc, VTs, Ops, NumOps);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT) {
SDVTList VTs = getVTList(VT);
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, NumOps);
- void *IP = 0;
- if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
- return ON;
-
- RemoveNodeFromCSEMaps(N);
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, NumOps);
-
- CSEMap.InsertNode(N, IP); // Memoize the new node.
- return N;
+ return MorphNodeTo(N, Opc, VTs, 0, 0);
}
-SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
- MVT::ValueType VT1, MVT::ValueType VT2,
- SDOperand Op1, SDOperand Op2) {
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT, SDValue Op1) {
+ SDVTList VTs = getVTList(VT);
+ SDValue Ops[] = { Op1 };
+ return MorphNodeTo(N, Opc, VTs, Ops, 1);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT, SDValue Op1,
+ SDValue Op2) {
+ SDVTList VTs = getVTList(VT);
+ SDValue Ops[] = { Op1, Op2 };
+ return MorphNodeTo(N, Opc, VTs, Ops, 2);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT, SDValue Op1,
+ SDValue Op2, SDValue Op3) {
+ SDVTList VTs = getVTList(VT);
+ SDValue Ops[] = { Op1, Op2, Op3 };
+ return MorphNodeTo(N, Opc, VTs, Ops, 3);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT, const SDValue *Ops,
+ unsigned NumOps) {
+ SDVTList VTs = getVTList(VT);
+ return MorphNodeTo(N, Opc, VTs, Ops, NumOps);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT1, MVT VT2, const SDValue *Ops,
+ unsigned NumOps) {
SDVTList VTs = getVTList(VT1, VT2);
- FoldingSetNodeID ID;
- SDOperand Ops[] = { Op1, Op2 };
- AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 2);
- void *IP = 0;
- if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
- return ON;
+ return MorphNodeTo(N, Opc, VTs, Ops, NumOps);
+}
- RemoveNodeFromCSEMaps(N);
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 2);
- CSEMap.InsertNode(N, IP); // Memoize the new node.
- return N;
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT1, MVT VT2) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ return MorphNodeTo(N, Opc, VTs, (SDValue *)0, 0);
}
-SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
- MVT::ValueType VT1, MVT::ValueType VT2,
- SDOperand Op1, SDOperand Op2,
- SDOperand Op3) {
- // If an identical node already exists, use it.
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT1, MVT VT2, MVT VT3,
+ const SDValue *Ops, unsigned NumOps) {
+ SDVTList VTs = getVTList(VT1, VT2, VT3);
+ return MorphNodeTo(N, Opc, VTs, Ops, NumOps);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT1, MVT VT2,
+ SDValue Op1) {
SDVTList VTs = getVTList(VT1, VT2);
- SDOperand Ops[] = { Op1, Op2, Op3 };
- FoldingSetNodeID ID;
- AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 3);
+ SDValue Ops[] = { Op1 };
+ return MorphNodeTo(N, Opc, VTs, Ops, 1);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT1, MVT VT2,
+ SDValue Op1, SDValue Op2) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ SDValue Ops[] = { Op1, Op2 };
+ return MorphNodeTo(N, Opc, VTs, Ops, 2);
+}
+
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ MVT VT1, MVT VT2,
+ SDValue Op1, SDValue Op2,
+ SDValue Op3) {
+ SDVTList VTs = getVTList(VT1, VT2);
+ SDValue Ops[] = { Op1, Op2, Op3 };
+ return MorphNodeTo(N, Opc, VTs, Ops, 3);
+}
+
+/// MorphNodeTo - These *mutate* the specified node to have the specified
+/// return type, opcode, and operands.
+///
+/// Note that MorphNodeTo returns the resultant node. If there is already a
+/// node of the specified opcode and operands, it returns that node instead of
+/// the current one.
+///
+/// Using MorphNodeTo is faster than creating a new node and swapping it in
+/// with ReplaceAllUsesWith both because it often avoids allocating a new
+/// node, and because it doesn't require CSE recalulation for any of
+/// the node's users.
+///
+SDNode *SelectionDAG::MorphNodeTo(SDNode *N, unsigned Opc,
+ SDVTList VTs, const SDValue *Ops,
+ unsigned NumOps) {
+ // If an identical node already exists, use it.
void *IP = 0;
- if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
- return ON;
+ if (VTs.VTs[VTs.NumVTs-1] != MVT::Flag) {
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, VTs, Ops, NumOps);
+ if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
+ return ON;
+ }
RemoveNodeFromCSEMaps(N);
- N->MorphNodeTo(ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, 3);
- CSEMap.InsertNode(N, IP); // Memoize the new node.
+ // Start the morphing.
+ N->NodeType = Opc;
+ N->ValueList = VTs.VTs;
+ N->NumValues = VTs.NumVTs;
+
+ // Clear the operands list, updating used nodes to remove this from their
+ // use list. Keep track of any operands that become dead as a result.
+ SmallPtrSet<SDNode*, 16> DeadNodeSet;
+ for (SDNode::op_iterator B = N->op_begin(), I = B, E = N->op_end();
+ I != E; ++I) {
+ SDNode *Used = I->getVal();
+ Used->removeUser(std::distance(B, I), N);
+ if (Used->use_empty())
+ DeadNodeSet.insert(Used);
+ }
+
+ // If NumOps is larger than the # of operands we currently have, reallocate
+ // the operand list.
+ if (NumOps > N->NumOperands) {
+ if (N->OperandsNeedDelete)
+ delete[] N->OperandList;
+ if (N->isMachineOpcode()) {
+ // We're creating a final node that will live unmorphed for the
+ // remainder of this SelectionDAG's duration, so we can allocate the
+ // operands directly out of the pool with no recycling metadata.
+ N->OperandList = Allocator.Allocate<SDUse>(NumOps);
+ N->OperandsNeedDelete = false;
+ } else {
+ N->OperandList = new SDUse[NumOps];
+ N->OperandsNeedDelete = true;
+ }
+ }
+
+ // Assign the new operands.
+ N->NumOperands = NumOps;
+ for (unsigned i = 0, e = NumOps; i != e; ++i) {
+ N->OperandList[i] = Ops[i];
+ N->OperandList[i].setUser(N);
+ SDNode *ToUse = N->OperandList[i].getVal();
+ ToUse->addUser(i, N);
+ DeadNodeSet.erase(ToUse);
+ }
+
+ // Delete any nodes that are still dead after adding the uses for the
+ // new operands.
+ SmallVector<SDNode *, 16> DeadNodes;
+ for (SmallPtrSet<SDNode *, 16>::iterator I = DeadNodeSet.begin(),
+ E = DeadNodeSet.end(); I != E; ++I)
+ if ((*I)->use_empty())
+ DeadNodes.push_back(*I);
+ RemoveDeadNodes(DeadNodes);
+
+ if (IP)
+ CSEMap.InsertNode(N, IP); // Memoize the new node.
return N;
}
/// Note that getTargetNode returns the resultant node. If there is already a
/// node of the specified opcode and operands, it returns that node instead of
/// the current one.
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT) {
- return getNode(ISD::BUILTIN_OP_END+Opcode, VT).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand Op1) {
- return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand Op1, SDOperand Op2) {
- return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT,
- SDOperand Op1, SDOperand Op2,
- SDOperand Op3) {
- return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Op1, Op2, Op3).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT,
- const SDOperand *Ops, unsigned NumOps) {
- return getNode(ISD::BUILTIN_OP_END+Opcode, VT, Ops, NumOps).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2);
- SDOperand Op;
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 2, &Op, 0).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2);
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 2, &Op1, 1).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1,
- SDOperand Op2) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2);
- SDOperand Ops[] = { Op1, Op2 };
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 2, Ops, 2).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, SDOperand Op1,
- SDOperand Op2, SDOperand Op3) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2);
- SDOperand Ops[] = { Op1, Op2, Op3 };
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 2, Ops, 3).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2,
- const SDOperand *Ops, unsigned NumOps) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2);
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 2, Ops, NumOps).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, MVT::ValueType VT3,
- SDOperand Op1, SDOperand Op2) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2, VT3);
- SDOperand Ops[] = { Op1, Op2 };
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 3, Ops, 2).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, MVT::ValueType VT3,
- SDOperand Op1, SDOperand Op2,
- SDOperand Op3) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2, VT3);
- SDOperand Ops[] = { Op1, Op2, Op3 };
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 3, Ops, 3).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, MVT::ValueType VT3,
- const SDOperand *Ops, unsigned NumOps) {
- const MVT::ValueType *VTs = getNodeValueTypes(VT1, VT2, VT3);
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 3, Ops, NumOps).Val;
-}
-SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT::ValueType VT1,
- MVT::ValueType VT2, MVT::ValueType VT3,
- MVT::ValueType VT4,
- const SDOperand *Ops, unsigned NumOps) {
- std::vector<MVT::ValueType> VTList;
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT) {
+ return getNode(~Opcode, VT).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT, SDValue Op1) {
+ return getNode(~Opcode, VT, Op1).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT,
+ SDValue Op1, SDValue Op2) {
+ return getNode(~Opcode, VT, Op1, Op2).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT,
+ SDValue Op1, SDValue Op2,
+ SDValue Op3) {
+ return getNode(~Opcode, VT, Op1, Op2, Op3).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT,
+ const SDValue *Ops, unsigned NumOps) {
+ return getNode(~Opcode, VT, Ops, NumOps).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1, MVT VT2) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2);
+ SDValue Op;
+ return getNode(~Opcode, VTs, 2, &Op, 0).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1,
+ MVT VT2, SDValue Op1) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2);
+ return getNode(~Opcode, VTs, 2, &Op1, 1).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1,
+ MVT VT2, SDValue Op1,
+ SDValue Op2) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2);
+ SDValue Ops[] = { Op1, Op2 };
+ return getNode(~Opcode, VTs, 2, Ops, 2).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1,
+ MVT VT2, SDValue Op1,
+ SDValue Op2, SDValue Op3) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2);
+ SDValue Ops[] = { Op1, Op2, Op3 };
+ return getNode(~Opcode, VTs, 2, Ops, 3).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1, MVT VT2,
+ const SDValue *Ops, unsigned NumOps) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2);
+ return getNode(~Opcode, VTs, 2, Ops, NumOps).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ SDValue Op1, SDValue Op2) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2, VT3);
+ SDValue Ops[] = { Op1, Op2 };
+ return getNode(~Opcode, VTs, 3, Ops, 2).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ SDValue Op1, SDValue Op2,
+ SDValue Op3) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2, VT3);
+ SDValue Ops[] = { Op1, Op2, Op3 };
+ return getNode(~Opcode, VTs, 3, Ops, 3).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1, MVT VT2, MVT VT3,
+ const SDValue *Ops, unsigned NumOps) {
+ const MVT *VTs = getNodeValueTypes(VT1, VT2, VT3);
+ return getNode(~Opcode, VTs, 3, Ops, NumOps).Val;
+}
+SDNode *SelectionDAG::getTargetNode(unsigned Opcode, MVT VT1,
+ MVT VT2, MVT VT3, MVT VT4,
+ const SDValue *Ops, unsigned NumOps) {
+ std::vector<MVT> VTList;
VTList.push_back(VT1);
VTList.push_back(VT2);
VTList.push_back(VT3);
VTList.push_back(VT4);
- const MVT::ValueType *VTs = getNodeValueTypes(VTList);
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, 4, Ops, NumOps).Val;
+ const MVT *VTs = getNodeValueTypes(VTList);
+ return getNode(~Opcode, VTs, 4, Ops, NumOps).Val;
}
SDNode *SelectionDAG::getTargetNode(unsigned Opcode,
- std::vector<MVT::ValueType> &ResultTys,
- const SDOperand *Ops, unsigned NumOps) {
- const MVT::ValueType *VTs = getNodeValueTypes(ResultTys);
- return getNode(ISD::BUILTIN_OP_END+Opcode, VTs, ResultTys.size(),
+ const std::vector<MVT> &ResultTys,
+ const SDValue *Ops, unsigned NumOps) {
+ const MVT *VTs = getNodeValueTypes(ResultTys);
+ return getNode(~Opcode, VTs, ResultTys.size(),
Ops, NumOps).Val;
}
+/// getNodeIfExists - Get the specified node if it's already available, or
+/// else return NULL.
+SDNode *SelectionDAG::getNodeIfExists(unsigned Opcode, SDVTList VTList,
+ const SDValue *Ops, unsigned NumOps) {
+ if (VTList.VTs[VTList.NumVTs-1] != MVT::Flag) {
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opcode, VTList, Ops, NumOps);
+ void *IP = 0;
+ if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
+ return E;
+ }
+ return NULL;
+}
+
/// ReplaceAllUsesWith - Modify anything using 'From' to use 'To' instead.
/// This can cause recursive merging of nodes in the DAG.
///
/// This version assumes From has a single result value.
///
-void SelectionDAG::ReplaceAllUsesWith(SDOperand FromN, SDOperand To,
+void SelectionDAG::ReplaceAllUsesWith(SDValue FromN, SDValue To,
DAGUpdateListener *UpdateListener) {
SDNode *From = FromN.Val;
assert(From->getNumValues() == 1 && FromN.ResNo == 0 &&
"Cannot replace with this method!");
assert(From != To.Val && "Cannot replace uses of with self");
-
+
while (!From->use_empty()) {
- // Process users until they are all gone.
- SDNode *U = *From->use_begin();
-
+ SDNode::use_iterator UI = From->use_begin();
+ SDNode *U = *UI;
+
// This node is about to morph, remove its old self from the CSE maps.
RemoveNodeFromCSEMaps(U);
-
- for (SDOperand *I = U->OperandList, *E = U->OperandList+U->NumOperands;
- I != E; ++I)
- if (I->Val == From) {
- From->removeUser(U);
+ int operandNum = 0;
+ for (SDNode::op_iterator I = U->op_begin(), E = U->op_end();
+ I != E; ++I, ++operandNum)
+ if (I->getVal() == From) {
+ From->removeUser(operandNum, U);
*I = To;
- To.Val->addUser(U);
- }
+ I->setUser(U);
+ To.Val->addUser(operandNum, U);
+ }
// Now that we have modified U, add it back to the CSE maps. If it already
// exists there, recursively merge the results together.
ReplaceAllUsesWith(U, Existing, UpdateListener);
// U is now dead. Inform the listener if it exists and delete it.
if (UpdateListener)
- UpdateListener->NodeDeleted(U);
+ UpdateListener->NodeDeleted(U, Existing);
DeleteNodeNotInCSEMaps(U);
} else {
// If the node doesn't already exist, we updated it. Inform a listener if
///
void SelectionDAG::ReplaceAllUsesWith(SDNode *From, SDNode *To,
DAGUpdateListener *UpdateListener) {
- assert(From != To && "Cannot replace uses of with self");
- assert(From->getNumValues() == To->getNumValues() &&
+ assert(From->getVTList().VTs == To->getVTList().VTs &&
+ From->getNumValues() == To->getNumValues() &&
"Cannot use this version of ReplaceAllUsesWith!");
- if (From->getNumValues() == 1) // If possible, use the faster version.
- return ReplaceAllUsesWith(SDOperand(From, 0), SDOperand(To, 0),
- UpdateListener);
-
+
+ // Handle the trivial case.
+ if (From == To)
+ return;
+
while (!From->use_empty()) {
- // Process users until they are all gone.
- SDNode *U = *From->use_begin();
-
+ SDNode::use_iterator UI = From->use_begin();
+ SDNode *U = *UI;
+
// This node is about to morph, remove its old self from the CSE maps.
RemoveNodeFromCSEMaps(U);
-
- for (SDOperand *I = U->OperandList, *E = U->OperandList+U->NumOperands;
- I != E; ++I)
- if (I->Val == From) {
- From->removeUser(U);
- I->Val = To;
- To->addUser(U);
+ int operandNum = 0;
+ for (SDNode::op_iterator I = U->op_begin(), E = U->op_end();
+ I != E; ++I, ++operandNum)
+ if (I->getVal() == From) {
+ From->removeUser(operandNum, U);
+ I->getVal() = To;
+ To->addUser(operandNum, U);
}
-
+
// Now that we have modified U, add it back to the CSE maps. If it already
// exists there, recursively merge the results together.
if (SDNode *Existing = AddNonLeafNodeToCSEMaps(U)) {
ReplaceAllUsesWith(U, Existing, UpdateListener);
// U is now dead. Inform the listener if it exists and delete it.
if (UpdateListener)
- UpdateListener->NodeDeleted(U);
+ UpdateListener->NodeDeleted(U, Existing);
DeleteNodeNotInCSEMaps(U);
} else {
// If the node doesn't already exist, we updated it. Inform a listener if
/// This version can replace From with any result values. To must match the
/// number and types of values returned by From.
void SelectionDAG::ReplaceAllUsesWith(SDNode *From,
- const SDOperand *To,
+ const SDValue *To,
DAGUpdateListener *UpdateListener) {
if (From->getNumValues() == 1) // Handle the simple case efficiently.
- return ReplaceAllUsesWith(SDOperand(From, 0), To[0], UpdateListener);
+ return ReplaceAllUsesWith(SDValue(From, 0), To[0], UpdateListener);
while (!From->use_empty()) {
- // Process users until they are all gone.
- SDNode *U = *From->use_begin();
-
+ SDNode::use_iterator UI = From->use_begin();
+ SDNode *U = *UI;
+
// This node is about to morph, remove its old self from the CSE maps.
RemoveNodeFromCSEMaps(U);
-
- for (SDOperand *I = U->OperandList, *E = U->OperandList+U->NumOperands;
- I != E; ++I)
- if (I->Val == From) {
- const SDOperand &ToOp = To[I->ResNo];
- From->removeUser(U);
+ int operandNum = 0;
+ for (SDNode::op_iterator I = U->op_begin(), E = U->op_end();
+ I != E; ++I, ++operandNum)
+ if (I->getVal() == From) {
+ const SDValue &ToOp = To[I->getSDValue().ResNo];
+ From->removeUser(operandNum, U);
*I = ToOp;
- ToOp.Val->addUser(U);
+ I->setUser(U);
+ ToOp.Val->addUser(operandNum, U);
}
-
+
// Now that we have modified U, add it back to the CSE maps. If it already
// exists there, recursively merge the results together.
if (SDNode *Existing = AddNonLeafNodeToCSEMaps(U)) {
ReplaceAllUsesWith(U, Existing, UpdateListener);
// U is now dead. Inform the listener if it exists and delete it.
if (UpdateListener)
- UpdateListener->NodeDeleted(U);
+ UpdateListener->NodeDeleted(U, Existing);
DeleteNodeNotInCSEMaps(U);
} else {
// If the node doesn't already exist, we updated it. Inform a listener if
}
}
-namespace {
- /// ChainedSetUpdaterListener - This class is a DAGUpdateListener that removes
- /// any deleted nodes from the set passed into its constructor and recursively
- /// notifies another update listener if specified.
- class ChainedSetUpdaterListener :
- public SelectionDAG::DAGUpdateListener {
- SmallSetVector<SDNode*, 16> &Set;
- SelectionDAG::DAGUpdateListener *Chain;
- public:
- ChainedSetUpdaterListener(SmallSetVector<SDNode*, 16> &set,
- SelectionDAG::DAGUpdateListener *chain)
- : Set(set), Chain(chain) {}
-
- virtual void NodeDeleted(SDNode *N) {
- Set.remove(N);
- if (Chain) Chain->NodeDeleted(N);
- }
- virtual void NodeUpdated(SDNode *N) {
- if (Chain) Chain->NodeUpdated(N);
- }
- };
-}
-
/// ReplaceAllUsesOfValueWith - Replace any uses of From with To, leaving
/// uses of other values produced by From.Val alone. The Deleted vector is
/// handled the same way as for ReplaceAllUsesWith.
-void SelectionDAG::ReplaceAllUsesOfValueWith(SDOperand From, SDOperand To,
+void SelectionDAG::ReplaceAllUsesOfValueWith(SDValue From, SDValue To,
DAGUpdateListener *UpdateListener){
- assert(From != To && "Cannot replace a value with itself");
-
+ // Handle the really simple, really trivial case efficiently.
+ if (From == To) return;
+
// Handle the simple, trivial, case efficiently.
if (From.Val->getNumValues() == 1) {
ReplaceAllUsesWith(From, To, UpdateListener);
return;
}
- if (From.use_empty()) return;
-
// Get all of the users of From.Val. We want these in a nice,
// deterministically ordered and uniqued set, so we use a SmallSetVector.
SmallSetVector<SDNode*, 16> Users(From.Val->use_begin(), From.Val->use_end());
- // When one of the recursive merges deletes nodes from the graph, we need to
- // make sure that UpdateListener is notified *and* that the node is removed
- // from Users if present. CSUL does this.
- ChainedSetUpdaterListener CSUL(Users, UpdateListener);
-
while (!Users.empty()) {
// We know that this user uses some value of From. If it is the right
// value, update it.
Users.pop_back();
// Scan for an operand that matches From.
- SDOperand *Op = User->OperandList, *E = User->OperandList+User->NumOperands;
+ SDNode::op_iterator Op = User->op_begin(), E = User->op_end();
for (; Op != E; ++Op)
if (*Op == From) break;
// Update all operands that match "From" in case there are multiple uses.
for (; Op != E; ++Op) {
if (*Op == From) {
- From.Val->removeUser(User);
+ From.Val->removeUser(Op-User->op_begin(), User);
*Op = To;
- To.Val->addUser(User);
+ Op->setUser(User);
+ To.Val->addUser(Op-User->op_begin(), User);
}
}
// If there was already an existing matching node, use ReplaceAllUsesWith
// to replace the dead one with the existing one. This can cause
- // recursive merging of other unrelated nodes down the line. The merging
- // can cause deletion of nodes that used the old value. To handle this, we
- // use CSUL to remove them from the Users set.
- ReplaceAllUsesWith(User, Existing, &CSUL);
+ // recursive merging of other unrelated nodes down the line.
+ ReplaceAllUsesWith(User, Existing, UpdateListener);
// User is now dead. Notify a listener if present.
- if (UpdateListener) UpdateListener->NodeDeleted(User);
+ if (UpdateListener) UpdateListener->NodeDeleted(User, Existing);
DeleteNodeNotInCSEMaps(User);
}
}
+/// ReplaceAllUsesOfValuesWith - Replace any uses of From with To, leaving
+/// uses of other values produced by From.Val alone. The same value may
+/// appear in both the From and To list. The Deleted vector is
+/// handled the same way as for ReplaceAllUsesWith.
+void SelectionDAG::ReplaceAllUsesOfValuesWith(const SDValue *From,
+ const SDValue *To,
+ unsigned Num,
+ DAGUpdateListener *UpdateListener){
+ // Handle the simple, trivial case efficiently.
+ if (Num == 1)
+ return ReplaceAllUsesOfValueWith(*From, *To, UpdateListener);
+
+ SmallVector<std::pair<SDNode *, unsigned>, 16> Users;
+ for (unsigned i = 0; i != Num; ++i)
+ for (SDNode::use_iterator UI = From[i].Val->use_begin(),
+ E = From[i].Val->use_end(); UI != E; ++UI)
+ Users.push_back(std::make_pair(*UI, i));
-/// AssignNodeIds - Assign a unique node id for each node in the DAG based on
-/// their allnodes order. It returns the maximum id.
-unsigned SelectionDAG::AssignNodeIds() {
- unsigned Id = 0;
- for (allnodes_iterator I = allnodes_begin(), E = allnodes_end(); I != E; ++I){
- SDNode *N = I;
- N->setNodeId(Id++);
+ while (!Users.empty()) {
+ // We know that this user uses some value of From. If it is the right
+ // value, update it.
+ SDNode *User = Users.back().first;
+ unsigned i = Users.back().second;
+ Users.pop_back();
+
+ // Scan for an operand that matches From.
+ SDNode::op_iterator Op = User->op_begin(), E = User->op_end();
+ for (; Op != E; ++Op)
+ if (*Op == From[i]) break;
+
+ // If there are no matches, the user must use some other result of From.
+ if (Op == E) continue;
+
+ // Okay, we know this user needs to be updated. Remove its old self
+ // from the CSE maps.
+ RemoveNodeFromCSEMaps(User);
+
+ // Update all operands that match "From" in case there are multiple uses.
+ for (; Op != E; ++Op) {
+ if (*Op == From[i]) {
+ From[i].Val->removeUser(Op-User->op_begin(), User);
+ *Op = To[i];
+ Op->setUser(User);
+ To[i].Val->addUser(Op-User->op_begin(), User);
+ }
+ }
+
+ // Now that we have modified User, add it back to the CSE maps. If it
+ // already exists there, recursively merge the results together.
+ SDNode *Existing = AddNonLeafNodeToCSEMaps(User);
+ if (!Existing) {
+ if (UpdateListener) UpdateListener->NodeUpdated(User);
+ continue; // Continue on to next user.
+ }
+
+ // If there was already an existing matching node, use ReplaceAllUsesWith
+ // to replace the dead one with the existing one. This can cause
+ // recursive merging of other unrelated nodes down the line.
+ ReplaceAllUsesWith(User, Existing, UpdateListener);
+
+ // User is now dead. Notify a listener if present.
+ if (UpdateListener) UpdateListener->NodeDeleted(User, Existing);
+ DeleteNodeNotInCSEMaps(User);
}
- return Id;
}
/// AssignTopologicalOrder - Assign a unique node id for each node in the DAG
}
TopOrder.clear();
+ TopOrder.reserve(DAGSize);
while (!Sources.empty()) {
SDNode *N = Sources.back();
Sources.pop_back();
TopOrder.push_back(N);
for (SDNode::op_iterator I = N->op_begin(), E = N->op_end(); I != E; ++I) {
- SDNode *P = I->Val;
+ SDNode *P = I->getVal();
unsigned Degree = --InDegree[P->getNodeId()];
if (Degree == 0)
Sources.push_back(P);
void BinarySDNode::ANCHOR() {}
void TernarySDNode::ANCHOR() {}
void HandleSDNode::ANCHOR() {}
-void StringSDNode::ANCHOR() {}
void ConstantSDNode::ANCHOR() {}
void ConstantFPSDNode::ANCHOR() {}
void GlobalAddressSDNode::ANCHOR() {}
void SrcValueSDNode::ANCHOR() {}
void MemOperandSDNode::ANCHOR() {}
void RegisterSDNode::ANCHOR() {}
+void DbgStopPointSDNode::ANCHOR() {}
+void LabelSDNode::ANCHOR() {}
void ExternalSymbolSDNode::ANCHOR() {}
void CondCodeSDNode::ANCHOR() {}
void ARG_FLAGSSDNode::ANCHOR() {}
void VTSDNode::ANCHOR() {}
+void MemSDNode::ANCHOR() {}
void LoadSDNode::ANCHOR() {}
void StoreSDNode::ANCHOR() {}
void AtomicSDNode::ANCHOR() {}
HandleSDNode::~HandleSDNode() {
- SDVTList VTs = { 0, 0 };
- MorphNodeTo(ISD::HANDLENODE, VTs, 0, 0); // Drops operand uses.
+ DropOperands();
}
GlobalAddressSDNode::GlobalAddressSDNode(bool isTarget, const GlobalValue *GA,
- MVT::ValueType VT, int o)
+ MVT VT, int o)
: SDNode(isa<GlobalVariable>(GA) &&
cast<GlobalVariable>(GA)->isThreadLocal() ?
// Thread Local
TheGlobal = const_cast<GlobalValue*>(GA);
}
-/// getMemOperand - Return a MemOperand object describing the memory
-/// reference performed by this load or store.
-MemOperand LSBaseSDNode::getMemOperand() const {
- int Size = (MVT::getSizeInBits(getMemoryVT()) + 7) >> 3;
- int Flags =
- getOpcode() == ISD::LOAD ? MemOperand::MOLoad : MemOperand::MOStore;
- if (IsVolatile) Flags |= MemOperand::MOVolatile;
+MemSDNode::MemSDNode(unsigned Opc, SDVTList VTs, MVT memvt,
+ const Value *srcValue, int SVO,
+ unsigned alignment, bool vol)
+ : SDNode(Opc, VTs), MemoryVT(memvt), SrcValue(srcValue), SVOffset(SVO),
+ Flags(vol | ((Log2_32(alignment) + 1) << 1)) {
+
+ assert(isPowerOf2_32(alignment) && "Alignment is not a power of 2!");
+ assert(getAlignment() == alignment && "Alignment representation error!");
+ assert(isVolatile() == vol && "Volatile representation error!");
+}
+
+/// getMemOperand - Return a MachineMemOperand object describing the memory
+/// reference performed by this memory reference.
+MachineMemOperand MemSDNode::getMemOperand() const {
+ int Flags;
+ if (isa<LoadSDNode>(this))
+ Flags = MachineMemOperand::MOLoad;
+ else if (isa<StoreSDNode>(this))
+ Flags = MachineMemOperand::MOStore;
+ else {
+ assert(isa<AtomicSDNode>(this) && "Unknown MemSDNode opcode!");
+ Flags = MachineMemOperand::MOLoad | MachineMemOperand::MOStore;
+ }
- // Check if the load references a frame index, and does not have
- // an SV attached.
- const FrameIndexSDNode *FI =
- dyn_cast<const FrameIndexSDNode>(getBasePtr().Val);
+ int Size = (getMemoryVT().getSizeInBits() + 7) >> 3;
+ if (isVolatile()) Flags |= MachineMemOperand::MOVolatile;
+
+ // Check if the memory reference references a frame index
+ const FrameIndexSDNode *FI =
+ dyn_cast<const FrameIndexSDNode>(getBasePtr().Val);
if (!getSrcValue() && FI)
- return MemOperand(PseudoSourceValue::getFixedStack(), Flags,
- FI->getIndex(), Size, Alignment);
+ return MachineMemOperand(PseudoSourceValue::getFixedStack(FI->getIndex()),
+ Flags, 0, Size, getAlignment());
else
- return MemOperand(getSrcValue(), Flags,
- getSrcValueOffset(), Size, Alignment);
+ return MachineMemOperand(getSrcValue(), Flags, getSrcValueOffset(),
+ Size, getAlignment());
}
/// Profile - Gather unique data for the node.
/// getValueTypeList - Return a pointer to the specified value type.
///
-const MVT::ValueType *SDNode::getValueTypeList(MVT::ValueType VT) {
- if (MVT::isExtendedVT(VT)) {
- static std::set<MVT::ValueType> EVTs;
+const MVT *SDNode::getValueTypeList(MVT VT) {
+ if (VT.isExtended()) {
+ static std::set<MVT, MVT::compareRawBits> EVTs;
return &(*EVTs.insert(VT).first);
} else {
- static MVT::ValueType VTs[MVT::LAST_VALUETYPE];
- VTs[VT] = VT;
- return &VTs[VT];
+ static MVT VTs[MVT::LAST_VALUETYPE];
+ VTs[VT.getSimpleVT()] = VT;
+ return &VTs[VT.getSimpleVT()];
}
}
bool SDNode::hasNUsesOfValue(unsigned NUses, unsigned Value) const {
assert(Value < getNumValues() && "Bad value!");
- // If there is only one value, this is easy.
- if (getNumValues() == 1)
- return use_size() == NUses;
- if (use_size() < NUses) return false;
-
- SDOperand TheValue(const_cast<SDNode *>(this), Value);
-
- SmallPtrSet<SDNode*, 32> UsersHandled;
-
- for (SDNode::use_iterator UI = Uses.begin(), E = Uses.end(); UI != E; ++UI) {
- SDNode *User = *UI;
- if (User->getNumOperands() == 1 ||
- UsersHandled.insert(User)) // First time we've seen this?
- for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i)
- if (User->getOperand(i) == TheValue) {
- if (NUses == 0)
- return false; // too many uses
- --NUses;
- }
+ // TODO: Only iterate over uses of a given value of the node
+ for (SDNode::use_iterator UI = use_begin(), E = use_end(); UI != E; ++UI) {
+ if (UI.getUse().getSDValue().ResNo == Value) {
+ if (NUses == 0)
+ return false;
+ --NUses;
+ }
}
// Found exactly the right number of uses?
bool SDNode::hasAnyUseOfValue(unsigned Value) const {
assert(Value < getNumValues() && "Bad value!");
- if (use_empty()) return false;
-
- SDOperand TheValue(const_cast<SDNode *>(this), Value);
-
- SmallPtrSet<SDNode*, 32> UsersHandled;
-
- for (SDNode::use_iterator UI = Uses.begin(), E = Uses.end(); UI != E; ++UI) {
- SDNode *User = *UI;
- if (User->getNumOperands() == 1 ||
- UsersHandled.insert(User)) // First time we've seen this?
- for (unsigned i = 0, e = User->getNumOperands(); i != e; ++i)
- if (User->getOperand(i) == TheValue) {
- return true;
- }
- }
+ for (SDNode::use_iterator UI = use_begin(), E = use_end(); UI != E; ++UI)
+ if (UI.getUse().getSDValue().ResNo == Value)
+ return true;
return false;
}
-/// isOnlyUseOf - Return true if this node is the only use of N.
+/// isOnlyUserOf - Return true if this node is the only use of N.
///
-bool SDNode::isOnlyUseOf(SDNode *N) const {
+bool SDNode::isOnlyUserOf(SDNode *N) const {
bool Seen = false;
for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I) {
SDNode *User = *I;
/// isOperand - Return true if this node is an operand of N.
///
-bool SDOperand::isOperandOf(SDNode *N) const {
+bool SDValue::isOperandOf(SDNode *N) const {
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
if (*this == N->getOperand(i))
return true;
bool SDNode::isOperandOf(SDNode *N) const {
for (unsigned i = 0, e = N->NumOperands; i != e; ++i)
- if (this == N->OperandList[i].Val)
+ if (this == N->OperandList[i].getVal())
return true;
return false;
}
/// side-effecting instructions. In practice, this looks through token
/// factors and non-volatile loads. In order to remain efficient, this only
/// looks a couple of nodes in, it does not do an exhaustive search.
-bool SDOperand::reachesChainWithoutSideEffects(SDOperand Dest,
+bool SDValue::reachesChainWithoutSideEffects(SDValue Dest,
unsigned Depth) const {
if (*this == Dest) return true;
default:
if (getOpcode() < ISD::BUILTIN_OP_END)
return "<<Unknown DAG Node>>";
- else {
- if (G) {
+ if (isMachineOpcode()) {
+ if (G)
if (const TargetInstrInfo *TII = G->getTarget().getInstrInfo())
- if (getOpcode()-ISD::BUILTIN_OP_END < TII->getNumOpcodes())
- return TII->get(getOpcode()-ISD::BUILTIN_OP_END).getName();
-
- TargetLowering &TLI = G->getTargetLoweringInfo();
- const char *Name =
- TLI.getTargetNodeName(getOpcode());
- if (Name) return Name;
- }
-
+ if (getMachineOpcode() < TII->getNumOpcodes())
+ return TII->get(getMachineOpcode()).getName();
+ return "<<Unknown Machine Node>>";
+ }
+ if (G) {
+ TargetLowering &TLI = G->getTargetLoweringInfo();
+ const char *Name = TLI.getTargetNodeName(getOpcode());
+ if (Name) return Name;
return "<<Unknown Target Node>>";
}
+ return "<<Unknown Node>>";
+#ifndef NDEBUG
+ case ISD::DELETED_NODE:
+ return "<<Deleted Node!>>";
+#endif
case ISD::PREFETCH: return "Prefetch";
case ISD::MEMBARRIER: return "MemBarrier";
- case ISD::ATOMIC_LCS: return "AtomicLCS";
- case ISD::ATOMIC_LAS: return "AtomicLAS";
- case ISD::ATOMIC_SWAP: return "AtomicSWAP";
+ case ISD::ATOMIC_CMP_SWAP: return "AtomicCmpSwap";
+ case ISD::ATOMIC_LOAD_ADD: return "AtomicLoadAdd";
+ case ISD::ATOMIC_LOAD_SUB: return "AtomicLoadSub";
+ case ISD::ATOMIC_LOAD_AND: return "AtomicLoadAnd";
+ case ISD::ATOMIC_LOAD_OR: return "AtomicLoadOr";
+ case ISD::ATOMIC_LOAD_XOR: return "AtomicLoadXor";
+ case ISD::ATOMIC_LOAD_NAND: return "AtomicLoadNand";
+ case ISD::ATOMIC_LOAD_MIN: return "AtomicLoadMin";
+ case ISD::ATOMIC_LOAD_MAX: return "AtomicLoadMax";
+ case ISD::ATOMIC_LOAD_UMIN: return "AtomicLoadUMin";
+ case ISD::ATOMIC_LOAD_UMAX: return "AtomicLoadUMax";
+ case ISD::ATOMIC_SWAP: return "AtomicSWAP";
case ISD::PCMARKER: return "PCMarker";
case ISD::READCYCLECOUNTER: return "ReadCycleCounter";
case ISD::SRCVALUE: return "SrcValue";
case ISD::AssertSext: return "AssertSext";
case ISD::AssertZext: return "AssertZext";
- case ISD::STRING: return "String";
case ISD::BasicBlock: return "BasicBlock";
case ISD::ARG_FLAGS: return "ArgFlags";
case ISD::VALUETYPE: return "ValueType";
case ISD::UNDEF: return "undef";
case ISD::MERGE_VALUES: return "merge_values";
case ISD::INLINEASM: return "inlineasm";
- case ISD::LABEL: return "label";
+ case ISD::DBG_LABEL: return "dbg_label";
+ case ISD::EH_LABEL: return "eh_label";
case ISD::DECLARE: return "declare";
case ISD::HANDLENODE: return "handlenode";
case ISD::FORMAL_ARGUMENTS: return "formal_arguments";
case ISD::FGETSIGN: return "fgetsign";
case ISD::SETCC: return "setcc";
+ case ISD::VSETCC: return "vsetcc";
case ISD::SELECT: return "select";
case ISD::SELECT_CC: return "select_cc";
case ISD::INSERT_VECTOR_ELT: return "insert_vector_elt";
case ISD::STACKRESTORE: return "stackrestore";
case ISD::TRAP: return "trap";
- // Block memory operations.
- case ISD::MEMSET: return "memset";
- case ISD::MEMCPY: return "memcpy";
- case ISD::MEMMOVE: return "memmove";
-
// Bit manipulation
case ISD::BSWAP: return "bswap";
case ISD::CTPOP: return "ctpop";
case ISD::CTLZ: return "ctlz";
// Debug info
- case ISD::LOCATION: return "location";
+ case ISD::DBG_STOPPOINT: return "dbg_stoppoint";
case ISD::DEBUG_LOC: return "debug_loc";
// Trampolines
if (getValueType(i) == MVT::Other)
cerr << "ch";
else
- cerr << MVT::getValueTypeString(getValueType(i));
+ cerr << getValueType(i).getMVTString();
}
cerr << " = " << getOperationName(G);
}
if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(this)) {
- cerr << "<" << CSDN->getValue() << ">";
+ cerr << "<" << CSDN->getAPIntValue().toStringUnsigned() << ">";
} else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(this)) {
if (&CSDN->getValueAPF().getSemantics()==&APFloat::IEEEsingle)
cerr << "<" << CSDN->getValueAPF().convertToFloat() << ">";
} else if (const ARG_FLAGSSDNode *N = dyn_cast<ARG_FLAGSSDNode>(this)) {
cerr << N->getArgFlags().getArgFlagsString();
} else if (const VTSDNode *N = dyn_cast<VTSDNode>(this)) {
- cerr << ":" << MVT::getValueTypeString(N->getVT());
- } else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
+ cerr << ":" << N->getVT().getMVTString();
+ }
+ else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
const Value *SrcValue = LD->getSrcValue();
int SrcOffset = LD->getSrcValueOffset();
cerr << " <";
break;
}
if (doExt)
- cerr << MVT::getValueTypeString(LD->getMemoryVT()) << ">";
+ cerr << LD->getMemoryVT().getMVTString() << ">";
const char *AM = getIndexedModeName(LD->getAddressingMode());
if (*AM)
if (ST->isTruncatingStore())
cerr << " <trunc "
- << MVT::getValueTypeString(ST->getMemoryVT()) << ">";
+ << ST->getMemoryVT().getMVTString() << ">";
const char *AM = getIndexedModeName(ST->getAddressingMode());
if (*AM)
if (ST->isVolatile())
cerr << " <volatile>";
cerr << " alignment=" << ST->getAlignment();
+ } else if (const AtomicSDNode* AT = dyn_cast<AtomicSDNode>(this)) {
+ const Value *SrcValue = AT->getSrcValue();
+ int SrcOffset = AT->getSrcValueOffset();
+ cerr << " <";
+ if (SrcValue)
+ cerr << SrcValue;
+ else
+ cerr << "null";
+ cerr << ":" << SrcOffset << ">";
+ if (AT->isVolatile())
+ cerr << " <volatile>";
+ cerr << " alignment=" << AT->getAlignment();
}
}
void SelectionDAG::dump() const {
cerr << "SelectionDAG has " << AllNodes.size() << " nodes:";
- std::vector<const SDNode*> Nodes;
- for (allnodes_const_iterator I = allnodes_begin(), E = allnodes_end();
- I != E; ++I)
- Nodes.push_back(I);
- std::sort(Nodes.begin(), Nodes.end());
-
- for (unsigned i = 0, e = Nodes.size(); i != e; ++i) {
- if (!Nodes[i]->hasOneUse() && Nodes[i] != getRoot().Val)
- DumpNodes(Nodes[i], 2, this);
+ for (allnodes_const_iterator I = allnodes_begin(), E = allnodes_end();
+ I != E; ++I) {
+ const SDNode *N = I;
+ if (!N->hasOneUse() && N != getRoot().Val)
+ DumpNodes(N, 2, this);
}
if (getRoot().Val) DumpNodes(getRoot().Val, 2, this);
projects / oota-llvm.git / blobdiff