#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
//===----------------------------------------------------------------------===//
// SDNode Profile Support
//===----------------------------------------------------------------------===//
-/// getNodeIDOpcode - Return the opcode that has been set for this NodeID.
-///
-static unsigned getNodeIDOpcode(FoldingSetNodeID &ID) {
- return ID.getRawData(0);
-}
-
/// AddNodeIDOpcode - Add the node opcode to the NodeID data.
///
static void AddNodeIDOpcode(FoldingSetNodeID &ID, unsigned OpC) {
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
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));
// 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 FoldSetCC to simplify SETCC's.
return SDOperand(N, 0);
}
-SDOperand SelectionDAG::getIndexedLoad(SDOperand OrigLoad, SDOperand Base,
- SDOperand Offset, ISD::MemOpAddrMode AM){
+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!");
return getNode(ISD::VLOAD, getVTList(MVT::Vector, MVT::Other), Ops, 5);
}
-SDOperand SelectionDAG::getStore(SDOperand Chain, SDOperand Value,
+SDOperand SelectionDAG::getStore(SDOperand Chain, SDOperand Val,
SDOperand Ptr, const Value *SV, int SVOffset,
bool isVolatile) {
- MVT::ValueType VT = Value.getValueType();
+ 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, Value, Ptr, Undef };
+ SDOperand Ops[] = { Chain, Val, Ptr, Undef };
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(ISD::UNINDEXED);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
- SDNode *N = new StoreSDNode(Chain, Value, Ptr, Undef, ISD::UNINDEXED, false,
+ SDNode *N = new StoreSDNode(Chain, Val, Ptr, Undef, ISD::UNINDEXED, false,
VT, SV, SVOffset, Alignment, isVolatile);
N->setValueTypes(VTs);
CSEMap.InsertNode(N, IP);
return SDOperand(N, 0);
}
-SDOperand SelectionDAG::getTruncStore(SDOperand Chain, SDOperand Value,
+SDOperand SelectionDAG::getTruncStore(SDOperand Chain, SDOperand Val,
SDOperand Ptr, const Value *SV,
int SVOffset, MVT::ValueType SVT,
bool isVolatile) {
- MVT::ValueType VT = Value.getValueType();
+ MVT::ValueType VT = Val.getValueType();
bool isTrunc = VT != SVT;
assert(VT > SVT && "Not a truncation?");
unsigned Alignment = 1;
SDVTList VTs = getVTList(MVT::Other);
SDOperand Undef = getNode(ISD::UNDEF, Ptr.getValueType());
- SDOperand Ops[] = { Chain, Value, Ptr, Undef };
+ SDOperand Ops[] = { Chain, Val, Ptr, Undef };
FoldingSetNodeID ID;
AddNodeIDNode(ID, ISD::STORE, VTs, Ops, 4);
ID.AddInteger(ISD::UNINDEXED);
void *IP = 0;
if (SDNode *E = CSEMap.FindNodeOrInsertPos(ID, IP))
return SDOperand(E, 0);
- SDNode *N = new StoreSDNode(Chain, Value, Ptr, Undef, ISD::UNINDEXED, isTrunc,
+ SDNode *N = new StoreSDNode(Chain, Val, Ptr, Undef, ISD::UNINDEXED, isTrunc,
SVT, SV, SVOffset, Alignment, isVolatile);
N->setValueTypes(VTs);
CSEMap.InsertNode(N, IP);
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,
SDOperand Chain, SDOperand Ptr,
SDOperand SV) {
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.
}
-// 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();
}
}
-const char *SDNode::getAddressingModeName(ISD::MemOpAddrMode AM) {
+const char *SDNode::getIndexedModeName(ISD::MemIndexedMode AM) {
switch (AM) {
default:
return "";
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:
-
std::cerr << " <anyext ";
+ cerr << " <anyext ";
break;
case ISD::SEXTLOAD:
- std::cerr << " <sext ";
+ cerr << " <sext ";
break;
case ISD::ZEXTLOAD:
- std::cerr << " <zext ";
+ cerr << " <zext ";
break;
}
if (doExt)
- std::cerr << MVT::getValueTypeString(LD->getLoadedVT()) << ">";
+ cerr << MVT::getValueTypeString(LD->getLoadedVT()) << ">";
- const char *AM = getAddressingModeName(LD->getAddressingMode());
+ const char *AM = getIndexedModeName(LD->getAddressingMode());
if (AM != "")
- std::cerr << " " << AM;
+ cerr << " " << AM;
} else if (const StoreSDNode *ST = dyn_cast<StoreSDNode>(this)) {
if (ST->isTruncatingStore())
- std::cerr << " <trunc "
- << MVT::getValueTypeString(ST->getStoredVT()) << ">";
+ cerr << " <trunc "
+ << MVT::getValueTypeString(ST->getStoredVT()) << ">";
- const char *AM = getAddressingModeName(ST->getAddressingMode());
+ const char *AM = getIndexedModeName(ST->getAddressingMode());
if (AM != "")
- std::cerr << " " << 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)
if (getRoot().Val) DumpNodes(getRoot().Val, 2, this);
- std::cerr << "\n\n";
+ cerr << "\n\n";
}
const Type *ConstantPoolSDNode::getType() const {
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