#include "llvm/ADT/SetVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/StringExtras.h"
-#include <iostream>
#include <set>
-#include <cmath>
#include <algorithm>
+#include <cmath>
using namespace llvm;
/// makeVTList - Return an instance of the SDVTList struct initialized with the
return Res;
}
-// isInvertibleForFree - Return true if there is no cost to emitting the logical
-// inverse of this node.
-static bool isInvertibleForFree(SDOperand N) {
- if (isa<ConstantSDNode>(N.Val)) return true;
- if (N.Val->getOpcode() == ISD::SETCC && N.Val->hasOneUse())
- return true;
- return false;
-}
-
//===----------------------------------------------------------------------===//
// ConstantFPSDNode Class
//===----------------------------------------------------------------------===//
return TLI.getTargetMachine();
}
+//===----------------------------------------------------------------------===//
+// SDNode Profile Support
+//===----------------------------------------------------------------------===//
+
+/// AddNodeIDOpcode - Add the node opcode to the NodeID data.
+///
+static void AddNodeIDOpcode(FoldingSetNodeID &ID, unsigned OpC) {
+ ID.AddInteger(OpC);
+}
+
+/// AddNodeIDValueTypes - Value type lists are intern'd so we can represent them
+/// solely with their pointer.
+void AddNodeIDValueTypes(FoldingSetNodeID &ID, SDVTList VTList) {
+ ID.AddPointer(VTList.VTs);
+}
+
+/// AddNodeIDOperand - Add an operands data to the NodeID data.
+///
+static void AddNodeIDOperand(FoldingSetNodeID &ID, SDOperand Op) {
+ ID.AddPointer(Op.Val);
+ ID.AddInteger(Op.ResNo);
+}
+
+/// AddNodeIDOperands - Various routines for adding operands to the NodeID data.
+///
+static void AddNodeIDOperands(FoldingSetNodeID &ID) {
+}
+static void AddNodeIDOperands(FoldingSetNodeID &ID, SDOperand Op) {
+ AddNodeIDOperand(ID, Op);
+}
+static void AddNodeIDOperands(FoldingSetNodeID &ID,
+ SDOperand Op1, SDOperand Op2) {
+ AddNodeIDOperand(ID, Op1);
+ AddNodeIDOperand(ID, Op2);
+}
+static void AddNodeIDOperands(FoldingSetNodeID &ID,
+ SDOperand Op1, SDOperand Op2, SDOperand Op3) {
+ AddNodeIDOperand(ID, Op1);
+ AddNodeIDOperand(ID, Op2);
+ AddNodeIDOperand(ID, Op3);
+}
+static void AddNodeIDOperands(FoldingSetNodeID &ID,
+ const SDOperand *Ops, unsigned NumOps) {
+ for (; NumOps; --NumOps, ++Ops)
+ AddNodeIDOperand(ID, *Ops);
+}
+
+/// AddNodeIDOperands - Various routines for adding node info to the NodeID
+/// data.
+static void AddNodeIDNode(FoldingSetNodeID &ID,
+ unsigned short OpC, SDVTList VTList) {
+ AddNodeIDOpcode(ID, OpC);
+ AddNodeIDValueTypes(ID, VTList);
+ AddNodeIDOperands(ID);
+}
+static void AddNodeIDNode(FoldingSetNodeID &ID,
+ unsigned short OpC, SDVTList VTList,
+ SDOperand Op) {
+ AddNodeIDOpcode(ID, OpC);
+ AddNodeIDValueTypes(ID, VTList);
+ AddNodeIDOperands(ID, Op);
+}
+static void AddNodeIDNode(FoldingSetNodeID &ID,
+ unsigned short OpC, SDVTList VTList,
+ SDOperand Op1, SDOperand Op2) {
+ AddNodeIDOpcode(ID, OpC);
+ AddNodeIDValueTypes(ID, VTList);
+ AddNodeIDOperands(ID, Op1, Op2);
+}
+static void AddNodeIDNode(FoldingSetNodeID &ID,
+ unsigned short OpC, SDVTList VTList,
+ SDOperand Op1, SDOperand Op2, SDOperand Op3) {
+ AddNodeIDOpcode(ID, OpC);
+ AddNodeIDValueTypes(ID, VTList);
+ AddNodeIDOperands(ID, Op1, Op2, Op3);
+}
+static void AddNodeIDNode(FoldingSetNodeID &ID,
+ unsigned short OpC, SDVTList VTList,
+ const SDOperand *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) {
+ AddNodeIDOpcode(ID, N->getOpcode());
+ // Add the return value info.
+ AddNodeIDValueTypes(ID, N->getVTList());
+ // Add the operand info.
+ AddNodeIDOperands(ID, N->op_begin(), N->getNumOperands());
+
+ // Handle SDNode leafs with special info.
+ if (N->getNumOperands() == 0) {
+ switch (N->getOpcode()) {
+ default: break; // Normal nodes don't need extra info.
+ case ISD::TargetConstant:
+ case ISD::Constant:
+ ID.AddInteger(cast<ConstantSDNode>(N)->getValue());
+ break;
+ case ISD::TargetConstantFP:
+ case ISD::ConstantFP:
+ ID.AddDouble(cast<ConstantFPSDNode>(N)->getValue());
+ break;
+ case ISD::TargetGlobalAddress:
+ case ISD::GlobalAddress: {
+ GlobalAddressSDNode *GA = cast<GlobalAddressSDNode>(N);
+ ID.AddPointer(GA->getGlobal());
+ ID.AddInteger(GA->getOffset());
+ break;
+ }
+ case ISD::BasicBlock:
+ ID.AddPointer(cast<BasicBlockSDNode>(N)->getBasicBlock());
+ break;
+ case ISD::Register:
+ ID.AddInteger(cast<RegisterSDNode>(N)->getReg());
+ break;
+ case ISD::SRCVALUE: {
+ SrcValueSDNode *SV = cast<SrcValueSDNode>(N);
+ ID.AddPointer(SV->getValue());
+ ID.AddInteger(SV->getOffset());
+ break;
+ }
+ case ISD::FrameIndex:
+ case ISD::TargetFrameIndex:
+ ID.AddInteger(cast<FrameIndexSDNode>(N)->getIndex());
+ break;
+ case ISD::JumpTable:
+ case ISD::TargetJumpTable:
+ ID.AddInteger(cast<JumpTableSDNode>(N)->getIndex());
+ break;
+ case ISD::ConstantPool:
+ case ISD::TargetConstantPool: {
+ ConstantPoolSDNode *CP = cast<ConstantPoolSDNode>(N);
+ ID.AddInteger(CP->getAlignment());
+ ID.AddInteger(CP->getOffset());
+ if (CP->isMachineConstantPoolEntry())
+ CP->getMachineCPVal()->AddSelectionDAGCSEId(ID);
+ else
+ ID.AddPointer(CP->getConstVal());
+ break;
+ }
+ case ISD::LOAD: {
+ LoadSDNode *LD = cast<LoadSDNode>(N);
+ ID.AddInteger(LD->getAddressingMode());
+ ID.AddInteger(LD->getExtensionType());
+ ID.AddInteger(LD->getLoadedVT());
+ ID.AddPointer(LD->getSrcValue());
+ ID.AddInteger(LD->getSrcValueOffset());
+ ID.AddInteger(LD->getAlignment());
+ ID.AddInteger(LD->isVolatile());
+ break;
+ }
+ case ISD::STORE: {
+ StoreSDNode *ST = cast<StoreSDNode>(N);
+ ID.AddInteger(ST->getAddressingMode());
+ ID.AddInteger(ST->isTruncatingStore());
+ ID.AddInteger(ST->getStoredVT());
+ ID.AddPointer(ST->getSrcValue());
+ ID.AddInteger(ST->getSrcValueOffset());
+ ID.AddInteger(ST->getAlignment());
+ ID.AddInteger(ST->isVolatile());
+ break;
+ }
+ }
+ }
+}
+
//===----------------------------------------------------------------------===//
// SelectionDAG Class
//===----------------------------------------------------------------------===//
setRoot(Dummy.getValue());
}
+void SelectionDAG::RemoveDeadNode(SDNode *N, std::vector<SDNode*> &Deleted) {
+ SmallVector<SDNode*, 16> DeadNodes;
+ DeadNodes.push_back(N);
+
+ // 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);
+ }
+ delete[] N->OperandList;
+ N->OperandList = 0;
+ N->NumOperands = 0;
+
+ // Finally, remove N itself.
+ Deleted.push_back(N);
+ AllNodes.erase(N);
+ }
+}
+
void SelectionDAG::DeleteNode(SDNode *N) {
assert(N->use_empty() && "Cannot delete a node that is not dead!");
if (!Erased && N->getValueType(N->getNumValues()-1) != MVT::Flag &&
!N->isTargetOpcode()) {
N->dump();
- std::cerr << "\n";
+ cerr << "\n";
assert(0 && "Node is not in map!");
}
#endif
if (N->getValueType(i) == MVT::Flag)
return 0; // Never CSE anything that produces a flag.
- SelectionDAGCSEMap::NodeID ID;
- ID.SetOpcode(N->getOpcode());
- ID.SetValueTypes(N->getVTList());
- ID.SetOperands(Op);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, N->getOpcode(), N->getVTList(), Op);
return CSEMap.FindNodeOrInsertPos(ID, InsertPos);
}
if (N->getValueType(i) == MVT::Flag)
return 0; // Never CSE anything that produces a flag.
- SelectionDAGCSEMap::NodeID ID;
- ID.SetOpcode(N->getOpcode());
- ID.SetValueTypes(N->getVTList());
- ID.SetOperands(Op1, Op2);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, N->getOpcode(), N->getVTList(), Op1, Op2);
return CSEMap.FindNodeOrInsertPos(ID, InsertPos);
}
if (N->getValueType(i) == MVT::Flag)
return 0; // Never CSE anything that produces a flag.
- SelectionDAGCSEMap::NodeID ID;
- ID.SetOpcode(N->getOpcode());
- ID.SetValueTypes(N->getVTList());
- ID.SetOperands(Ops, NumOps);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, N->getOpcode(), N->getVTList());
+
+ if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(N)) {
+ ID.AddInteger(LD->getAddressingMode());
+ ID.AddInteger(LD->getExtensionType());
+ ID.AddInteger(LD->getLoadedVT());
+ ID.AddPointer(LD->getSrcValue());
+ ID.AddInteger(LD->getSrcValueOffset());
+ 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(ST->getStoredVT());
+ ID.AddPointer(ST->getSrcValue());
+ ID.AddInteger(ST->getSrcValueOffset());
+ ID.AddInteger(ST->getAlignment());
+ ID.AddInteger(ST->isVolatile());
+ }
+
+ AddNodeIDOperands(ID, Ops, NumOps);
return CSEMap.FindNodeOrInsertPos(ID, InsertPos);
}
Val &= MVT::getIntVTBitMask(VT);
unsigned Opc = isT ? ISD::TargetConstant : ISD::Constant;
- SelectionDAGCSEMap::NodeID ID(Opc, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, getVTList(VT));
ID.AddInteger(Val);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
// value, so that we don't have problems with 0.0 comparing equal to -0.0, and
// we don't have issues with SNANs.
unsigned Opc = isTarget ? ISD::TargetConstantFP : ISD::ConstantFP;
- SelectionDAGCSEMap::NodeID ID(Opc, getVTList(VT));
- ID.AddInteger(DoubleToBits(Val));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, getVTList(VT));
+ ID.AddDouble(Val);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
MVT::ValueType VT, int Offset,
bool isTargetGA) {
unsigned Opc = isTargetGA ? ISD::TargetGlobalAddress : ISD::GlobalAddress;
- SelectionDAGCSEMap::NodeID ID(Opc, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, getVTList(VT));
ID.AddPointer(GV);
ID.AddInteger(Offset);
void *IP = 0;
SDOperand SelectionDAG::getFrameIndex(int FI, MVT::ValueType VT,
bool isTarget) {
unsigned Opc = isTarget ? ISD::TargetFrameIndex : ISD::FrameIndex;
- SelectionDAGCSEMap::NodeID ID(Opc, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, getVTList(VT));
ID.AddInteger(FI);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
SDOperand SelectionDAG::getJumpTable(int JTI, MVT::ValueType VT, bool isTarget){
unsigned Opc = isTarget ? ISD::TargetJumpTable : ISD::JumpTable;
- SelectionDAGCSEMap::NodeID ID(Opc, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, getVTList(VT));
ID.AddInteger(JTI);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
unsigned Alignment, int Offset,
bool isTarget) {
unsigned Opc = isTarget ? ISD::TargetConstantPool : ISD::ConstantPool;
- SelectionDAGCSEMap::NodeID ID(Opc, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, getVTList(VT));
ID.AddInteger(Alignment);
ID.AddInteger(Offset);
ID.AddPointer(C);
unsigned Alignment, int Offset,
bool isTarget) {
unsigned Opc = isTarget ? ISD::TargetConstantPool : ISD::ConstantPool;
- SelectionDAGCSEMap::NodeID ID(Opc, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opc, getVTList(VT));
ID.AddInteger(Alignment);
ID.AddInteger(Offset);
- C->AddSelectionDAGCSEId(&ID);
+ C->AddSelectionDAGCSEId(ID);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
SDOperand SelectionDAG::getBasicBlock(MachineBasicBlock *MBB) {
- SelectionDAGCSEMap::NodeID ID(ISD::BasicBlock, getVTList(MVT::Other));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BasicBlock, getVTList(MVT::Other));
ID.AddPointer(MBB);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
}
SDOperand SelectionDAG::getRegister(unsigned RegNo, MVT::ValueType VT) {
- SelectionDAGCSEMap::NodeID ID(ISD::Register, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::Register, getVTList(VT));
ID.AddInteger(RegNo);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
assert((!V || isa<PointerType>(V->getType())) &&
"SrcValue is not a pointer?");
- SelectionDAGCSEMap::NodeID ID(ISD::SRCVALUE, getVTList(MVT::Other));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::SRCVALUE, getVTList(MVT::Other));
ID.AddPointer(V);
ID.AddInteger(Offset);
void *IP = 0;
return SDOperand(N, 0);
}
-SDOperand SelectionDAG::SimplifySetCC(MVT::ValueType VT, SDOperand N1,
- SDOperand N2, ISD::CondCode Cond) {
+SDOperand SelectionDAG::FoldSetCC(MVT::ValueType VT, SDOperand N1,
+ SDOperand N2, ISD::CondCode Cond) {
// These setcc operations always fold.
switch (Cond) {
default: break;
assert(!MVT::isInteger(N1.getValueType()) && "Illegal setcc for integer!");
break;
}
-
+
if (ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.Val)) {
uint64_t C2 = N2C->getValue();
if (ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val)) {
uint64_t C1 = N1C->getValue();
-
+
// Sign extend the operands if required
if (ISD::isSignedIntSetCC(Cond)) {
C1 = N1C->getSignExtended();
C2 = N2C->getSignExtended();
}
-
+
switch (Cond) {
default: assert(0 && "Unknown integer setcc!");
case ISD::SETEQ: return getConstant(C1 == C2, VT);
case ISD::SETLE: return getConstant((int64_t)C1 <= (int64_t)C2, VT);
case ISD::SETGE: return getConstant((int64_t)C1 >= (int64_t)C2, VT);
}
- } else {
- // If the LHS is a ZERO_EXTEND, perform the comparison on the input.
- if (N1.getOpcode() == ISD::ZERO_EXTEND) {
- unsigned InSize = MVT::getSizeInBits(N1.getOperand(0).getValueType());
-
- // If the comparison constant has bits in the upper part, the
- // zero-extended value could never match.
- if (C2 & (~0ULL << InSize)) {
- unsigned VSize = MVT::getSizeInBits(N1.getValueType());
- switch (Cond) {
- case ISD::SETUGT:
- case ISD::SETUGE:
- case ISD::SETEQ: return getConstant(0, VT);
- case ISD::SETULT:
- case ISD::SETULE:
- case ISD::SETNE: return getConstant(1, VT);
- case ISD::SETGT:
- case ISD::SETGE:
- // True if the sign bit of C2 is set.
- return getConstant((C2 & (1ULL << VSize)) != 0, VT);
- case ISD::SETLT:
- case ISD::SETLE:
- // True if the sign bit of C2 isn't set.
- return getConstant((C2 & (1ULL << VSize)) == 0, VT);
- default:
- break;
- }
- }
-
- // Otherwise, we can perform the comparison with the low bits.
- switch (Cond) {
- case ISD::SETEQ:
- case ISD::SETNE:
- case ISD::SETUGT:
- case ISD::SETUGE:
- case ISD::SETULT:
- case ISD::SETULE:
- return getSetCC(VT, N1.getOperand(0),
- getConstant(C2, N1.getOperand(0).getValueType()),
- Cond);
- default:
- break; // todo, be more careful with signed comparisons
- }
- } else if (N1.getOpcode() == ISD::SIGN_EXTEND_INREG &&
- (Cond == ISD::SETEQ || Cond == ISD::SETNE)) {
- MVT::ValueType ExtSrcTy = cast<VTSDNode>(N1.getOperand(1))->getVT();
- unsigned ExtSrcTyBits = MVT::getSizeInBits(ExtSrcTy);
- MVT::ValueType ExtDstTy = N1.getValueType();
- unsigned ExtDstTyBits = MVT::getSizeInBits(ExtDstTy);
-
- // If the extended part has any inconsistent bits, it cannot ever
- // compare equal. In other words, they have to be all ones or all
- // zeros.
- uint64_t ExtBits =
- (~0ULL >> (64-ExtSrcTyBits)) & (~0ULL << (ExtDstTyBits-1));
- if ((C2 & ExtBits) != 0 && (C2 & ExtBits) != ExtBits)
- return getConstant(Cond == ISD::SETNE, VT);
-
- // Otherwise, make this a use of a zext.
- return getSetCC(VT, getZeroExtendInReg(N1.getOperand(0), ExtSrcTy),
- getConstant(C2 & (~0ULL>>(64-ExtSrcTyBits)), ExtDstTy),
- Cond);
- }
-
- uint64_t MinVal, MaxVal;
- unsigned OperandBitSize = MVT::getSizeInBits(N2C->getValueType(0));
- if (ISD::isSignedIntSetCC(Cond)) {
- MinVal = 1ULL << (OperandBitSize-1);
- if (OperandBitSize != 1) // Avoid X >> 64, which is undefined.
- MaxVal = ~0ULL >> (65-OperandBitSize);
- else
- MaxVal = 0;
- } else {
- MinVal = 0;
- MaxVal = ~0ULL >> (64-OperandBitSize);
- }
-
- // Canonicalize GE/LE comparisons to use GT/LT comparisons.
- if (Cond == ISD::SETGE || Cond == ISD::SETUGE) {
- if (C2 == MinVal) return getConstant(1, VT); // X >= MIN --> true
- --C2; // X >= C1 --> X > (C1-1)
- return getSetCC(VT, N1, getConstant(C2, N2.getValueType()),
- (Cond == ISD::SETGE) ? ISD::SETGT : ISD::SETUGT);
- }
-
- if (Cond == ISD::SETLE || Cond == ISD::SETULE) {
- if (C2 == MaxVal) return getConstant(1, VT); // X <= MAX --> true
- ++C2; // X <= C1 --> X < (C1+1)
- return getSetCC(VT, N1, getConstant(C2, N2.getValueType()),
- (Cond == ISD::SETLE) ? ISD::SETLT : ISD::SETULT);
- }
-
- if ((Cond == ISD::SETLT || Cond == ISD::SETULT) && C2 == MinVal)
- return getConstant(0, VT); // X < MIN --> false
-
- // Canonicalize setgt X, Min --> setne X, Min
- if ((Cond == ISD::SETGT || Cond == ISD::SETUGT) && C2 == MinVal)
- return getSetCC(VT, N1, N2, ISD::SETNE);
-
- // If we have setult X, 1, turn it into seteq X, 0
- if ((Cond == ISD::SETLT || Cond == ISD::SETULT) && C2 == MinVal+1)
- return getSetCC(VT, N1, getConstant(MinVal, N1.getValueType()),
- ISD::SETEQ);
- // If we have setugt X, Max-1, turn it into seteq X, Max
- else if ((Cond == ISD::SETGT || Cond == ISD::SETUGT) && C2 == MaxVal-1)
- return getSetCC(VT, N1, getConstant(MaxVal, N1.getValueType()),
- ISD::SETEQ);
-
- // If we have "setcc X, C1", check to see if we can shrink the immediate
- // by changing cc.
-
- // SETUGT X, SINTMAX -> SETLT X, 0
- if (Cond == ISD::SETUGT && OperandBitSize != 1 &&
- C2 == (~0ULL >> (65-OperandBitSize)))
- return getSetCC(VT, N1, getConstant(0, N2.getValueType()), ISD::SETLT);
-
- // FIXME: Implement the rest of these.
-
-
- // Fold bit comparisons when we can.
- if ((Cond == ISD::SETEQ || Cond == ISD::SETNE) &&
- VT == N1.getValueType() && N1.getOpcode() == ISD::AND)
- if (ConstantSDNode *AndRHS =
- dyn_cast<ConstantSDNode>(N1.getOperand(1))) {
- if (Cond == ISD::SETNE && C2 == 0) {// (X & 8) != 0 --> (X & 8) >> 3
- // Perform the xform if the AND RHS is a single bit.
- if ((AndRHS->getValue() & (AndRHS->getValue()-1)) == 0) {
- return getNode(ISD::SRL, VT, N1,
- getConstant(Log2_64(AndRHS->getValue()),
- TLI.getShiftAmountTy()));
- }
- } else if (Cond == ISD::SETEQ && C2 == AndRHS->getValue()) {
- // (X & 8) == 8 --> (X & 8) >> 3
- // Perform the xform if C2 is a single bit.
- if ((C2 & (C2-1)) == 0) {
- return getNode(ISD::SRL, VT, N1,
- getConstant(Log2_64(C2),TLI.getShiftAmountTy()));
- }
- }
- }
}
- } else if (isa<ConstantSDNode>(N1.Val)) {
- // Ensure that the constant occurs on the RHS.
- return getSetCC(VT, N2, N1, ISD::getSetCCSwappedOperands(Cond));
}
-
if (ConstantFPSDNode *N1C = dyn_cast<ConstantFPSDNode>(N1.Val))
if (ConstantFPSDNode *N2C = dyn_cast<ConstantFPSDNode>(N2.Val)) {
double C1 = N1C->getValue(), C2 = N2C->getValue();
-
+
switch (Cond) {
default: break; // FIXME: Implement the rest of these!
case ISD::SETEQ: return getConstant(C1 == C2, VT);
// Ensure that the constant occurs on the RHS.
return getSetCC(VT, N2, N1, ISD::getSetCCSwappedOperands(Cond));
}
-
+
// Could not fold it.
return SDOperand();
}
+
/// getNode - Gets or creates the specified node.
///
SDOperand SelectionDAG::getNode(unsigned Opcode, MVT::ValueType VT) {
- SelectionDAGCSEMap::NodeID ID(Opcode, getVTList(VT));
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opcode, getVTList(VT));
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
case ISD::BIT_CONVERT:
// Basic sanity checking.
assert(MVT::getSizeInBits(VT) == MVT::getSizeInBits(Operand.getValueType())
- && "Cannot BIT_CONVERT between two different types!");
+ && "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::BIT_CONVERT, VT, Operand.getOperand(0));
SDNode *N;
SDVTList VTs = getVTList(VT);
if (VT != MVT::Flag) { // Don't CSE flag producing nodes
- SelectionDAGCSEMap::NodeID ID(Opcode, VTs, Operand);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opcode, VTs, Operand);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
}
}
- // Finally, fold operations that do not require constants.
+ // Fold operations.
switch (Opcode) {
+ case ISD::AND:
+ // (X & 0) -> 0. This commonly occurs when legalizing i64 values, so it's
+ // worth handling here.
+ if (N2C && N2C->getValue() == 0)
+ return N2;
+ break;
+ case ISD::OR:
+ case ISD::XOR:
+ // (X ^| 0) -> X. This commonly occurs when legalizing i64 values, so it's
+ // worth handling here.
+ if (N2C && N2C->getValue() == 0)
+ return N1;
+ break;
case ISD::FP_ROUND_INREG:
if (cast<VTSDNode>(N2)->getVT() == VT) return N1; // Not actually rounding.
break;
SDNode *N;
SDVTList VTs = getVTList(VT);
if (VT != MVT::Flag) {
- SelectionDAGCSEMap::NodeID ID(Opcode, VTs, N1, N2);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opcode, VTs, N1, N2);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
// Perform various simplifications.
ConstantSDNode *N1C = dyn_cast<ConstantSDNode>(N1.Val);
ConstantSDNode *N2C = dyn_cast<ConstantSDNode>(N2.Val);
- //ConstantSDNode *N3C = dyn_cast<ConstantSDNode>(N3.Val);
switch (Opcode) {
case ISD::SETCC: {
- // Use SimplifySetCC to simplify SETCC's.
- SDOperand Simp = SimplifySetCC(VT, N1, N2, cast<CondCodeSDNode>(N3)->get());
+ // Use FoldSetCC to simplify SETCC's.
+ SDOperand Simp = FoldSetCC(VT, N1, N2, cast<CondCodeSDNode>(N3)->get());
if (Simp.Val) return Simp;
break;
}
SDNode *N;
SDVTList VTs = getVTList(VT);
if (VT != MVT::Flag) {
- SelectionDAGCSEMap::NodeID ID(Opcode, VTs, N1, N2, N3);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opcode, VTs, N1, N2, N3);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
SDOperand SelectionDAG::getLoad(MVT::ValueType VT,
SDOperand Chain, SDOperand Ptr,
- SDOperand SV) {
+ const Value *SV, int SVOffset,
+ bool isVolatile) {
+ // FIXME: Alignment == 1 for now.
+ unsigned Alignment = 1;
SDVTList VTs = getVTList(VT, MVT::Other);
-
- SelectionDAGCSEMap::NodeID ID(ISD::LOAD, VTs, Chain, Ptr, SV);
+ SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::LOAD, VTs, Chain, Ptr, Undef);
+ ID.AddInteger(ISD::UNINDEXED);
+ ID.AddInteger(ISD::NON_EXTLOAD);
+ ID.AddInteger(VT);
+ ID.AddPointer(SV);
+ ID.AddInteger(SVOffset);
+ ID.AddInteger(Alignment);
+ ID.AddInteger(isVolatile);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
- SDNode *N = new SDNode(ISD::LOAD, Chain, Ptr, SV);
+ SDNode *N = new LoadSDNode(Chain, Ptr, Undef, ISD::UNINDEXED,
+ ISD::NON_EXTLOAD, VT, SV, SVOffset, Alignment,
+ isVolatile);
+ N->setValueTypes(VTs);
+ 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) {
+ // If they are asking for an extending load from/to the same thing, return a
+ // normal load.
+ if (VT == EVT)
+ ExtType = ISD::NON_EXTLOAD;
+
+ if (MVT::isVector(VT))
+ assert(EVT == MVT::getVectorBaseType(VT) && "Invalid vector extload!");
+ else
+ assert(EVT < 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!");
+
+ // FIXME: Alignment == 1 for now.
+ unsigned Alignment = 1;
+ SDVTList VTs = getVTList(VT, MVT::Other);
+ SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::LOAD, VTs, Chain, Ptr, Undef);
+ ID.AddInteger(ISD::UNINDEXED);
+ ID.AddInteger(ExtType);
+ ID.AddInteger(EVT);
+ ID.AddPointer(SV);
+ ID.AddInteger(SVOffset);
+ ID.AddInteger(Alignment);
+ ID.AddInteger(isVolatile);
+ void *IP = 0;
+ if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
+ return SDOperand(E, 0);
+ SDNode *N = new LoadSDNode(Chain, Ptr, Undef, ISD::UNINDEXED, ExtType, EVT,
+ SV, SVOffset, Alignment, isVolatile);
+ N->setValueTypes(VTs);
+ CSEMap.InsertNode(N, IP);
+ AllNodes.push_back(N);
+ return SDOperand(N, 0);
+}
+
+SDOperand
+SelectionDAG::getIndexedLoad(SDOperand OrigLoad, SDOperand Base,
+ SDOperand 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);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::LOAD, VTs, LD->getChain(), Base, Offset);
+ ID.AddInteger(AM);
+ ID.AddInteger(LD->getExtensionType());
+ ID.AddInteger(LD->getLoadedVT());
+ ID.AddPointer(LD->getSrcValue());
+ ID.AddInteger(LD->getSrcValueOffset());
+ 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(LD->getChain(), Base, Offset, AM,
+ LD->getExtensionType(), LD->getLoadedVT(),
+ LD->getSrcValue(), LD->getSrcValueOffset(),
+ LD->getAlignment(), LD->isVolatile());
N->setValueTypes(VTs);
CSEMap.InsertNode(N, IP);
AllNodes.push_back(N);
return getNode(ISD::VLOAD, getVTList(MVT::Vector, MVT::Other), Ops, 5);
}
-SDOperand SelectionDAG::getExtLoad(ISD::LoadExtType LType, MVT::ValueType VT,
- SDOperand Chain, SDOperand Ptr, SDOperand SV,
- MVT::ValueType EVT) {
- SDOperand Ops[] = { Chain, Ptr, SV, getValueType(EVT),
- getConstant(LType, MVT::i32) };
- return getNode(ISD::LOADX, getVTList(VT, MVT::Other), Ops, 5);
+SDOperand SelectionDAG::getStore(SDOperand Chain, SDOperand Val,
+ SDOperand Ptr, const Value *SV, int SVOffset,
+ bool isVolatile) {
+ MVT::ValueType VT = Val.getValueType();
+
+ // FIXME: Alignment == 1 for now.
+ unsigned Alignment = 1;
+ SDVTList VTs = getVTList(MVT::Other);
+ SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ SDOperand Ops[] = { Chain, Val, Ptr, Undef };
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
+ ID.AddInteger(ISD::UNINDEXED);
+ ID.AddInteger(false);
+ ID.AddInteger(VT);
+ ID.AddPointer(SV);
+ ID.AddInteger(SVOffset);
+ ID.AddInteger(Alignment);
+ ID.AddInteger(isVolatile);
+ void *IP = 0;
+ if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
+ return SDOperand(E, 0);
+ SDNode *N = new StoreSDNode(Chain, Val, Ptr, Undef, ISD::UNINDEXED, false,
+ VT, SV, SVOffset, Alignment, isVolatile);
+ N->setValueTypes(VTs);
+ CSEMap.InsertNode(N, IP);
+ AllNodes.push_back(N);
+ return SDOperand(N, 0);
+}
+
+SDOperand SelectionDAG::getTruncStore(SDOperand Chain, SDOperand Val,
+ SDOperand Ptr, const Value *SV,
+ int SVOffset, MVT::ValueType SVT,
+ bool isVolatile) {
+ MVT::ValueType VT = Val.getValueType();
+ bool isTrunc = VT != SVT;
+
+ assert(VT > SVT && "Not a truncation?");
+ assert(MVT::isInteger(VT) == MVT::isInteger(SVT) &&
+ "Can't do FP-INT conversion!");
+
+ // FIXME: Alignment == 1 for now.
+ unsigned Alignment = 1;
+ SDVTList VTs = getVTList(MVT::Other);
+ SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
+ SDOperand Ops[] = { Chain, Val, Ptr, Undef };
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
+ ID.AddInteger(ISD::UNINDEXED);
+ ID.AddInteger(isTrunc);
+ ID.AddInteger(SVT);
+ ID.AddPointer(SV);
+ ID.AddInteger(SVOffset);
+ ID.AddInteger(Alignment);
+ ID.AddInteger(isVolatile);
+ void *IP = 0;
+ if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
+ return SDOperand(E, 0);
+ SDNode *N = new StoreSDNode(Chain, Val, Ptr, Undef, ISD::UNINDEXED, isTrunc,
+ SVT, SV, SVOffset, Alignment, isVolatile);
+ N->setValueTypes(VTs);
+ CSEMap.InsertNode(N, IP);
+ AllNodes.push_back(N);
+ return SDOperand(N, 0);
+}
+
+SDOperand
+SelectionDAG::getIndexedStore(SDOperand OrigStore, SDOperand Base,
+ SDOperand 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 };
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
+ ID.AddInteger(AM);
+ ID.AddInteger(ST->isTruncatingStore());
+ ID.AddInteger(ST->getStoredVT());
+ ID.AddPointer(ST->getSrcValue());
+ ID.AddInteger(ST->getSrcValueOffset());
+ 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(ST->getChain(), ST->getValue(),
+ Base, Offset, AM,
+ ST->isTruncatingStore(), ST->getStoredVT(),
+ ST->getSrcValue(), ST->getSrcValueOffset(),
+ ST->getAlignment(), ST->isVolatile());
+ N->setValueTypes(VTs);
+ CSEMap.InsertNode(N, IP);
+ AllNodes.push_back(N);
+ return SDOperand(N, 0);
}
SDOperand SelectionDAG::getVAArg(MVT::ValueType VT,
switch (Opcode) {
default: break;
- case ISD::TRUNCSTORE: {
- assert(NumOps == 5 && "TRUNCSTORE takes 5 operands!");
- MVT::ValueType EVT = cast<VTSDNode>(Ops[4])->getVT();
-#if 0 // FIXME: If the target supports EVT natively, convert to a truncate/store
- // If this is a truncating store of a constant, convert to the desired type
- // and store it instead.
- if (isa<Constant>(Ops[0])) {
- SDOperand Op = getNode(ISD::TRUNCATE, EVT, N1);
- if (isa<Constant>(Op))
- N1 = Op;
- }
- // Also for ConstantFP?
-#endif
- if (Ops[0].getValueType() == EVT) // Normal store?
- return getNode(ISD::STORE, VT, Ops[0], Ops[1], Ops[2], Ops[3]);
- assert(Ops[1].getValueType() > EVT && "Not a truncation?");
- assert(MVT::isInteger(Ops[1].getValueType()) == MVT::isInteger(EVT) &&
- "Can't do FP-INT conversion!");
- break;
- }
case ISD::SELECT_CC: {
assert(NumOps == 5 && "SELECT_CC takes 5 operands!");
assert(Ops[0].getValueType() == Ops[1].getValueType() &&
SDNode *N;
SDVTList VTs = getVTList(VT);
if (VT != MVT::Flag) {
- SelectionDAGCSEMap::NodeID ID(Opcode, VTs, Ops, NumOps);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opcode, VTs, Ops, NumOps);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
return getNode(Opcode, VTList.VTs[0], Ops, NumOps);
switch (Opcode) {
- case ISD::LOADX: {
- MVT::ValueType EVT = cast<VTSDNode>(Ops[3])->getVT();
- unsigned LType = cast<ConstantSDNode>(Ops[4])->getValue();
- assert(NumOps == 5 && VTList.NumVTs == 2 && "Bad *EXTLOAD!");
- // If they are asking for an extending load from/to the same thing, return a
- // normal load.
- if (VTList.VTs[0] == EVT)
- return getLoad(VTList.VTs[0], Ops[0], Ops[1], Ops[2]);
- if (MVT::isVector(VTList.VTs[0])) {
- assert(EVT == MVT::getVectorBaseType(VTList.VTs[0]) &&
- "Invalid vector extload!");
- } else {
- assert(EVT < VTList.VTs[0] &&
- "Should only be an extending load, not truncating!");
- }
- assert((LType == ISD::EXTLOAD || MVT::isInteger(VTList.VTs[0])) &&
- "Cannot sign/zero extend a FP/Vector load!");
- assert(MVT::isInteger(VTList.VTs[0]) == MVT::isInteger(EVT) &&
- "Cannot convert from FP to Int or Int -> FP!");
- break;
- }
-
// FIXME: figure out how to safely handle things like
// int foo(int x) { return 1 << (x & 255); }
// int bar() { return foo(256); }
// Memoize the node unless it returns a flag.
SDNode *N;
if (VTList.VTs[VTList.NumVTs-1] != MVT::Flag) {
- SelectionDAGCSEMap::NodeID ID;
- ID.SetOpcode(Opcode);
- ID.SetValueTypes(VTList);
- ID.SetOperands(&Ops[0], NumOps);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, Opcode, VTList, Ops, NumOps);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
assert(N->getNumOperands() == 2 && "Update with wrong number of operands");
// Check to see if there is no change.
- bool AnyChange = false;
if (Op1 == N->getOperand(0) && Op2 == N->getOperand(1))
return InN; // No operands changed, just return the input node.
SDNode *SelectionDAG::SelectNodeTo(SDNode *N, unsigned TargetOpc,
MVT::ValueType VT) {
SDVTList VTs = getVTList(VT);
- SelectionDAGCSEMap::NodeID ID(ISD::BUILTIN_OP_END+TargetOpc, VTs);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs);
void *IP = 0;
if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
return ON;
MVT::ValueType VT, SDOperand Op1) {
// If an identical node already exists, use it.
SDVTList VTs = getVTList(VT);
- SelectionDAGCSEMap::NodeID ID(ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1);
void *IP = 0;
if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
return ON;
SDOperand Op2) {
// If an identical node already exists, use it.
SDVTList VTs = getVTList(VT);
- SelectionDAGCSEMap::NodeID ID(ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1, Op2);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1, Op2);
void *IP = 0;
if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
return ON;
SDOperand Op2, SDOperand Op3) {
// If an identical node already exists, use it.
SDVTList VTs = getVTList(VT);
- SelectionDAGCSEMap::NodeID ID(ISD::BUILTIN_OP_END+TargetOpc, VTs,
- Op1, Op2, Op3);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1, Op2, Op3);
void *IP = 0;
if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
return ON;
unsigned NumOps) {
// If an identical node already exists, use it.
SDVTList VTs = getVTList(VT);
- SelectionDAGCSEMap::NodeID ID(ISD::BUILTIN_OP_END+TargetOpc, VTs);
- for (unsigned i = 0; i != NumOps; ++i)
- ID.AddOperand(Ops[i]);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Ops, NumOps);
void *IP = 0;
if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
return ON;
MVT::ValueType VT1, MVT::ValueType VT2,
SDOperand Op1, SDOperand Op2) {
SDVTList VTs = getVTList(VT1, VT2);
- SelectionDAGCSEMap::NodeID ID(ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1, Op2);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1, Op2);
void *IP = 0;
if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
return ON;
SDOperand Op3) {
// If an identical node already exists, use it.
SDVTList VTs = getVTList(VT1, VT2);
- SelectionDAGCSEMap::NodeID ID(ISD::BUILTIN_OP_END+TargetOpc, VTs,
- Op1, Op2, Op3);
+ FoldingSetNodeID ID;
+ AddNodeIDNode(ID, ISD::BUILTIN_OP_END+TargetOpc, VTs, Op1, Op2, Op3);
void *IP = 0;
if (SDNode *ON = CSEMap.FindNodeOrInsertPos(ID, IP))
return ON;
void SDNode::ANCHOR() {
}
+/// Profile - Gather unique data for the node.
+///
+void SDNode::Profile(FoldingSetNodeID &ID) {
+ AddNodeIDNode(ID, this);
+}
+
/// getValueTypeList - Return a pointer to the specified value type.
///
MVT::ValueType *SDNode::getValueTypeList(MVT::ValueType VT) {
}
-// isOnlyUse - Return true if this node is the only use of N.
+/// isOnlyUse - Return true if this node is the only use of N.
+///
bool SDNode::isOnlyUse(SDNode *N) const {
bool Seen = false;
for (SDNode::use_iterator I = N->use_begin(), E = N->use_end(); I != E; ++I) {
return Seen;
}
-// isOperand - Return true if this node is an operand of N.
+/// isOperand - Return true if this node is an operand of N.
+///
bool SDOperand::isOperand(SDNode *N) const {
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i)
if (*this == N->getOperand(i))
return false;
}
+static void findPredecessor(SDNode *N, const SDNode *P, bool &found,
+ std::set<SDNode *> &Visited) {
+ if (found || !Visited.insert(N).second)
+ return;
+
+ for (unsigned i = 0, e = N->getNumOperands(); !found && i != e; ++i) {
+ SDNode *Op = N->getOperand(i).Val;
+ if (Op == P) {
+ found = true;
+ return;
+ }
+ findPredecessor(Op, P, found, Visited);
+ }
+}
+
+/// isPredecessor - Return true if this node is a predecessor of N. This node
+/// is either an operand of N or it can be reached by recursively traversing
+/// up the operands.
+/// NOTE: this is an expensive method. Use it carefully.
+bool SDNode::isPredecessor(SDNode *N) const {
+ std::set<SDNode *> Visited;
+ bool found = false;
+ findPredecessor(N, this, found, Visited);
+ return found;
+}
+
uint64_t SDNode::getConstantOperandVal(unsigned Num) const {
assert(Num < NumOperands && "Invalid child # of SDNode!");
return cast<ConstantSDNode>(OperandList[Num])->getValue();
case ISD::GlobalAddress: return "GlobalAddress";
case ISD::FrameIndex: return "FrameIndex";
case ISD::JumpTable: return "JumpTable";
- case ISD::JumpTableRelocBase: return "JumpTableRelocBase";
+ case ISD::GLOBAL_OFFSET_TABLE: return "GLOBAL_OFFSET_TABLE";
+ case ISD::RETURNADDR: return "RETURNADDR";
+ case ISD::FRAMEADDR: return "FRAMEADDR";
case ISD::ConstantPool: return "ConstantPool";
case ISD::ExternalSymbol: return "ExternalSymbol";
case ISD::INTRINSIC_WO_CHAIN: {
case ISD::UNDEF: return "undef";
case ISD::MERGE_VALUES: return "mergevalues";
case ISD::INLINEASM: return "inlineasm";
+ case ISD::LABEL: return "label";
case ISD::HANDLENODE: return "handlenode";
case ISD::FORMAL_ARGUMENTS: return "formal_arguments";
case ISD::CALL: return "call";
// Control flow instructions
case ISD::BR: return "br";
case ISD::BRIND: return "brind";
+ case ISD::BR_JT: return "br_jt";
case ISD::BRCOND: return "brcond";
case ISD::BR_CC: return "br_cc";
case ISD::RET: return "ret";
case ISD::LOAD: return "load";
case ISD::STORE: return "store";
case ISD::VLOAD: return "vload";
- case ISD::LOADX: return "loadx";
- case ISD::TRUNCSTORE: return "truncstore";
case ISD::VAARG: return "vaarg";
case ISD::VACOPY: return "vacopy";
case ISD::VAEND: return "vaend";
// Debug info
case ISD::LOCATION: return "location";
case ISD::DEBUG_LOC: return "debug_loc";
- case ISD::DEBUG_LABEL: return "debug_label";
case ISD::CONDCODE:
switch (cast<CondCodeSDNode>(this)->get()) {
}
}
+const char *SDNode::getIndexedModeName(ISD::MemIndexedMode AM) {
+ switch (AM) {
+ default:
+ return "";
+ case ISD::PRE_INC:
+ return "<pre-inc>";
+ case ISD::PRE_DEC:
+ return "<pre-dec>";
+ case ISD::POST_INC:
+ return "<post-inc>";
+ case ISD::POST_DEC:
+ return "<post-dec>";
+ }
+}
+
void SDNode::dump() const { dump(0); }
void SDNode::dump(const SelectionDAG *G) const {
- std::cerr << (void*)this << ": ";
+ cerr << (void*)this << ": ";
for (unsigned i = 0, e = getNumValues(); i != e; ++i) {
- if (i) std::cerr << ",";
+ if (i) cerr << ",";
if (getValueType(i) == MVT::Other)
- std::cerr << "ch";
+ cerr << "ch";
else
- std::cerr << MVT::getValueTypeString(getValueType(i));
+ cerr << MVT::getValueTypeString(getValueType(i));
}
- std::cerr << " = " << getOperationName(G);
+ cerr << " = " << getOperationName(G);
- std::cerr << " ";
+ cerr << " ";
for (unsigned i = 0, e = getNumOperands(); i != e; ++i) {
- if (i) std::cerr << ", ";
- std::cerr << (void*)getOperand(i).Val;
+ if (i) cerr << ", ";
+ cerr << (void*)getOperand(i).Val;
if (unsigned RN = getOperand(i).ResNo)
- std::cerr << ":" << RN;
+ cerr << ":" << RN;
}
if (const ConstantSDNode *CSDN = dyn_cast<ConstantSDNode>(this)) {
- std::cerr << "<" << CSDN->getValue() << ">";
+ cerr << "<" << CSDN->getValue() << ">";
} else if (const ConstantFPSDNode *CSDN = dyn_cast<ConstantFPSDNode>(this)) {
- std::cerr << "<" << CSDN->getValue() << ">";
+ cerr << "<" << CSDN->getValue() << ">";
} else if (const GlobalAddressSDNode *GADN =
dyn_cast<GlobalAddressSDNode>(this)) {
int offset = GADN->getOffset();
- std::cerr << "<";
- WriteAsOperand(std::cerr, GADN->getGlobal()) << ">";
+ cerr << "<";
+ WriteAsOperand(*cerr.stream(), GADN->getGlobal()) << ">";
if (offset > 0)
- std::cerr << " + " << offset;
+ cerr << " + " << offset;
else
- std::cerr << " " << offset;
+ cerr << " " << offset;
} else if (const FrameIndexSDNode *FIDN = dyn_cast<FrameIndexSDNode>(this)) {
- std::cerr << "<" << FIDN->getIndex() << ">";
+ cerr << "<" << FIDN->getIndex() << ">";
+ } else if (const JumpTableSDNode *JTDN = dyn_cast<JumpTableSDNode>(this)) {
+ cerr << "<" << JTDN->getIndex() << ">";
} else if (const ConstantPoolSDNode *CP = dyn_cast<ConstantPoolSDNode>(this)){
int offset = CP->getOffset();
if (CP->isMachineConstantPoolEntry())
- std::cerr << "<" << *CP->getMachineCPVal() << ">";
+ cerr << "<" << *CP->getMachineCPVal() << ">";
else
- std::cerr << "<" << *CP->getConstVal() << ">";
+ cerr << "<" << *CP->getConstVal() << ">";
if (offset > 0)
- std::cerr << " + " << offset;
+ cerr << " + " << offset;
else
- std::cerr << " " << offset;
+ cerr << " " << offset;
} else if (const BasicBlockSDNode *BBDN = dyn_cast<BasicBlockSDNode>(this)) {
- std::cerr << "<";
+ cerr << "<";
const Value *LBB = (const Value*)BBDN->getBasicBlock()->getBasicBlock();
if (LBB)
- std::cerr << LBB->getName() << " ";
- std::cerr << (const void*)BBDN->getBasicBlock() << ">";
+ cerr << LBB->getName() << " ";
+ cerr << (const void*)BBDN->getBasicBlock() << ">";
} else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(this)) {
if (G && R->getReg() && MRegisterInfo::isPhysicalRegister(R->getReg())) {
- std::cerr << " " <<G->getTarget().getRegisterInfo()->getName(R->getReg());
+ cerr << " " <<G->getTarget().getRegisterInfo()->getName(R->getReg());
} else {
- std::cerr << " #" << R->getReg();
+ cerr << " #" << R->getReg();
}
} else if (const ExternalSymbolSDNode *ES =
dyn_cast<ExternalSymbolSDNode>(this)) {
- std::cerr << "'" << ES->getSymbol() << "'";
+ cerr << "'" << ES->getSymbol() << "'";
} else if (const SrcValueSDNode *M = dyn_cast<SrcValueSDNode>(this)) {
if (M->getValue())
- std::cerr << "<" << M->getValue() << ":" << M->getOffset() << ">";
+ cerr << "<" << M->getValue() << ":" << M->getOffset() << ">";
else
- std::cerr << "<null:" << M->getOffset() << ">";
+ cerr << "<null:" << M->getOffset() << ">";
} else if (const VTSDNode *N = dyn_cast<VTSDNode>(this)) {
- std::cerr << ":" << getValueTypeString(N->getVT());
+ cerr << ":" << getValueTypeString(N->getVT());
+ } else if (const LoadSDNode *LD = dyn_cast<LoadSDNode>(this)) {
+ bool doExt = true;
+ switch (LD->getExtensionType()) {
+ default: doExt = false; break;
+ case ISD::EXTLOAD:
+ cerr << " <anyext ";
+ break;
+ case ISD::SEXTLOAD:
+ cerr << " <sext ";
+ break;
+ case ISD::ZEXTLOAD:
+ cerr << " <zext ";
+ break;
+ }
+ if (doExt)
+ cerr << MVT::getValueTypeString(LD->getLoadedVT()) << ">";
+
+ const char *AM = getIndexedModeName(LD->getAddressingMode());
+ if (AM != "")
+ cerr << " " << AM;
+ } else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(this)) {
+ if (ST->isTruncatingStore())
+ cerr << " <trunc "
+ << MVT::getValueTypeString(ST->getStoredVT()) << ">";
+
+ const char *AM = getIndexedModeName(ST->getAddressingMode());
+ if (AM != "")
+ cerr << " " << AM;
}
}
if (N->getOperand(i).Val->hasOneUse())
DumpNodes(N->getOperand(i).Val, indent+2, G);
else
- std::cerr << "\n" << std::string(indent+2, ' ')
- << (void*)N->getOperand(i).Val << ": <multiple use>";
+ cerr << "\n" << std::string(indent+2, ' ')
+ << (void*)N->getOperand(i).Val << ": <multiple use>";
- std::cerr << "\n" << std::string(indent, ' ');
+ cerr << "\n" << std::string(indent, ' ');
N->dump(G);
}
void SelectionDAG::dump() const {
- std::cerr << "SelectionDAG has " << AllNodes.size() << " nodes:";
+ cerr << "SelectionDAG has " << AllNodes.size() << " nodes:";
std::vector<const SDNode*> Nodes;
for (allnodes_const_iterator I = allnodes_begin(), E = allnodes_end();
I != E; ++I)
DumpNodes(Nodes[i], 2, this);
}
- DumpNodes(getRoot().Val, 2, this);
+ if (getRoot().Val) DumpNodes(getRoot().Val, 2, this);
- std::cerr << "\n\n";
+ cerr << "\n\n";
}
const Type *ConstantPoolSDNode::getType() const {