//===----------------------------------------------------------------------===//
#include "CodeGenDAGPatterns.h"
-#include "llvm/TableGen/Error.h"
-#include "llvm/TableGen/Record.h"
-#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/STLExtras.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/Twine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/ErrorHandling.h"
+#include "llvm/TableGen/Error.h"
+#include "llvm/TableGen/Record.h"
#include <algorithm>
#include <cstdio>
#include <set>
using namespace llvm;
+#define DEBUG_TYPE "dag-patterns"
+
//===----------------------------------------------------------------------===//
// EEVT::TypeSet Implementation
//===----------------------------------------------------------------------===//
static inline bool isInteger(MVT::SimpleValueType VT) {
- return EVT(VT).isInteger();
+ return MVT(VT).isInteger();
}
static inline bool isFloatingPoint(MVT::SimpleValueType VT) {
- return EVT(VT).isFloatingPoint();
+ return MVT(VT).isFloatingPoint();
}
static inline bool isVector(MVT::SimpleValueType VT) {
- return EVT(VT).isVector();
+ return MVT(VT).isVector();
}
static inline bool isScalar(MVT::SimpleValueType VT) {
- return !EVT(VT).isVector();
+ return !MVT(VT).isVector();
}
EEVT::TypeSet::TypeSet(MVT::SimpleValueType VT, TreePattern &TP) {
}
-EEVT::TypeSet::TypeSet(const std::vector<MVT::SimpleValueType> &VTList) {
+EEVT::TypeSet::TypeSet(ArrayRef<MVT::SimpleValueType> VTList) {
assert(!VTList.empty() && "empty list?");
TypeVec.append(VTList.begin(), VTList.end());
bool (*Pred)(MVT::SimpleValueType),
const char *PredicateName) {
assert(isCompletelyUnknown());
- const std::vector<MVT::SimpleValueType> &LegalTypes =
+ ArrayRef<MVT::SimpleValueType> LegalTypes =
TP.getDAGPatterns().getTargetInfo().getLegalValueTypes();
+ if (TP.hasError())
+ return false;
+
for (unsigned i = 0, e = LegalTypes.size(); i != e; ++i)
- if (Pred == 0 || Pred(LegalTypes[i]))
+ if (!Pred || Pred(LegalTypes[i]))
TypeVec.push_back(LegalTypes[i]);
// If we have nothing that matches the predicate, bail out.
- if (TypeVec.empty())
+ if (TypeVec.empty()) {
TP.error("Type inference contradiction found, no " +
std::string(PredicateName) + " types found");
+ return false;
+ }
// No need to sort with one element.
if (TypeVec.size() == 1) return true;
return false;
}
+/// hasScalarTypes - Return true if this TypeSet contains a scalar value type.
+bool EEVT::TypeSet::hasScalarTypes() const {
+ for (unsigned i = 0, e = TypeVec.size(); i != e; ++i)
+ if (isScalar(TypeVec[i]))
+ return true;
+ return false;
+}
+
/// hasVectorTypes - Return true if this TypeSet contains a vAny or a vector
/// value type.
bool EEVT::TypeSet::hasVectorTypes() const {
/// MergeInTypeInfo - This merges in type information from the specified
/// argument. If 'this' changes, it returns true. If the two types are
-/// contradictory (e.g. merge f32 into i32) then this throws an exception.
+/// contradictory (e.g. merge f32 into i32) then this flags an error.
bool EEVT::TypeSet::MergeInTypeInfo(const EEVT::TypeSet &InVT, TreePattern &TP){
- if (InVT.isCompletelyUnknown() || *this == InVT)
+ if (InVT.isCompletelyUnknown() || *this == InVT || TP.hasError())
return false;
if (isCompletelyUnknown()) {
// FIXME: Really want an SMLoc here!
TP.error("Type inference contradiction found, merging '" +
InVT.getName() + "' into '" + InputSet.getName() + "'");
- return true; // unreachable
+ return false;
}
/// EnforceInteger - Remove all non-integer types from this set.
bool EEVT::TypeSet::EnforceInteger(TreePattern &TP) {
+ if (TP.hasError())
+ return false;
// If we know nothing, then get the full set.
if (TypeVec.empty())
return FillWithPossibleTypes(TP, isInteger, "integer");
if (!isInteger(TypeVec[i]))
TypeVec.erase(TypeVec.begin()+i--);
- if (TypeVec.empty())
+ if (TypeVec.empty()) {
TP.error("Type inference contradiction found, '" +
InputSet.getName() + "' needs to be integer");
+ return false;
+ }
return true;
}
/// EnforceFloatingPoint - Remove all integer types from this set.
bool EEVT::TypeSet::EnforceFloatingPoint(TreePattern &TP) {
+ if (TP.hasError())
+ return false;
// If we know nothing, then get the full set.
if (TypeVec.empty())
return FillWithPossibleTypes(TP, isFloatingPoint, "floating point");
if (!isFloatingPoint(TypeVec[i]))
TypeVec.erase(TypeVec.begin()+i--);
- if (TypeVec.empty())
+ if (TypeVec.empty()) {
TP.error("Type inference contradiction found, '" +
InputSet.getName() + "' needs to be floating point");
+ return false;
+ }
return true;
}
/// EnforceScalar - Remove all vector types from this.
bool EEVT::TypeSet::EnforceScalar(TreePattern &TP) {
+ if (TP.hasError())
+ return false;
+
// If we know nothing, then get the full set.
if (TypeVec.empty())
return FillWithPossibleTypes(TP, isScalar, "scalar");
if (!isScalar(TypeVec[i]))
TypeVec.erase(TypeVec.begin()+i--);
- if (TypeVec.empty())
+ if (TypeVec.empty()) {
TP.error("Type inference contradiction found, '" +
InputSet.getName() + "' needs to be scalar");
+ return false;
+ }
return true;
}
/// EnforceVector - Remove all vector types from this.
bool EEVT::TypeSet::EnforceVector(TreePattern &TP) {
+ if (TP.hasError())
+ return false;
+
// If we know nothing, then get the full set.
if (TypeVec.empty())
return FillWithPossibleTypes(TP, isVector, "vector");
MadeChange = true;
}
- if (TypeVec.empty())
+ if (TypeVec.empty()) {
TP.error("Type inference contradiction found, '" +
InputSet.getName() + "' needs to be a vector");
+ return false;
+ }
return MadeChange;
}
-/// EnforceSmallerThan - 'this' must be a smaller VT than Other. Update
-/// this an other based on this information.
+/// EnforceSmallerThan - 'this' must be a smaller VT than Other. For vectors
+/// this shoud be based on the element type. Update this and other based on
+/// this information.
bool EEVT::TypeSet::EnforceSmallerThan(EEVT::TypeSet &Other, TreePattern &TP) {
+ if (TP.hasError())
+ return false;
+
// Both operands must be integer or FP, but we don't care which.
bool MadeChange = false;
// If one contains vectors but the other doesn't pull vectors out.
if (!hasVectorTypes())
MadeChange |= Other.EnforceScalar(TP);
- if (!hasVectorTypes())
+ else if (!hasScalarTypes())
+ MadeChange |= Other.EnforceVector(TP);
+ if (!Other.hasVectorTypes())
MadeChange |= EnforceScalar(TP);
+ else if (!Other.hasScalarTypes())
+ MadeChange |= EnforceVector(TP);
+
+ // For vectors we need to ensure that smaller size doesn't produce larger
+ // vector and vice versa.
+ if (isConcrete() && isVector(getConcrete())) {
+ MVT IVT = getConcrete();
+ unsigned Size = IVT.getSizeInBits();
+
+ // Only keep types that have at least as many bits.
+ TypeSet InputSet(Other);
+
+ for (unsigned i = 0; i != Other.TypeVec.size(); ++i) {
+ assert(isVector(Other.TypeVec[i]) && "EnforceVector didn't work");
+ if (MVT(Other.TypeVec[i]).getSizeInBits() < Size) {
+ Other.TypeVec.erase(Other.TypeVec.begin()+i--);
+ MadeChange = true;
+ }
+ }
- if (TypeVec.size() == 1 && Other.TypeVec.size() == 1) {
- // If we are down to concrete types, this code does not currently
- // handle nodes which have multiple types, where some types are
- // integer, and some are fp. Assert that this is not the case.
- assert(!(hasIntegerTypes() && hasFloatingPointTypes()) &&
- !(Other.hasIntegerTypes() && Other.hasFloatingPointTypes()) &&
- "SDTCisOpSmallerThanOp does not handle mixed int/fp types!");
-
- // Otherwise, if these are both vector types, either this vector
- // must have a larger bitsize than the other, or this element type
- // must be larger than the other.
- EVT Type(TypeVec[0]);
- EVT OtherType(Other.TypeVec[0]);
-
- if (hasVectorTypes() && Other.hasVectorTypes()) {
- if (Type.getSizeInBits() >= OtherType.getSizeInBits())
- if (Type.getVectorElementType().getSizeInBits()
- >= OtherType.getVectorElementType().getSizeInBits())
- TP.error("Type inference contradiction found, '" +
- getName() + "' element type not smaller than '" +
- Other.getName() +"'!");
- }
- else
- // For scalar types, the bitsize of this type must be larger
- // than that of the other.
- if (Type.getSizeInBits() >= OtherType.getSizeInBits())
- TP.error("Type inference contradiction found, '" +
- getName() + "' is not smaller than '" +
- Other.getName() +"'!");
-
- }
-
-
- // Handle int and fp as disjoint sets. This won't work for patterns
- // that have mixed fp/int types but those are likely rare and would
- // not have been accepted by this code previously.
-
- // Okay, find the smallest type from the current set and remove it from the
- // largest set.
- MVT::SimpleValueType SmallestInt = MVT::LAST_VALUETYPE;
- for (unsigned i = 0, e = TypeVec.size(); i != e; ++i)
- if (isInteger(TypeVec[i])) {
- SmallestInt = TypeVec[i];
- break;
+ if (Other.TypeVec.empty()) { // FIXME: Really want an SMLoc here!
+ TP.error("Type inference contradiction found, forcing '" +
+ InputSet.getName() + "' to have at least as many bits as " +
+ getName() + "'");
+ return false;
}
- for (unsigned i = 1, e = TypeVec.size(); i != e; ++i)
- if (isInteger(TypeVec[i]) && TypeVec[i] < SmallestInt)
- SmallestInt = TypeVec[i];
+ } else if (Other.isConcrete() && isVector(Other.getConcrete())) {
+ MVT IVT = Other.getConcrete();
+ unsigned Size = IVT.getSizeInBits();
- MVT::SimpleValueType SmallestFP = MVT::LAST_VALUETYPE;
- for (unsigned i = 0, e = TypeVec.size(); i != e; ++i)
- if (isFloatingPoint(TypeVec[i])) {
- SmallestFP = TypeVec[i];
- break;
- }
- for (unsigned i = 1, e = TypeVec.size(); i != e; ++i)
- if (isFloatingPoint(TypeVec[i]) && TypeVec[i] < SmallestFP)
- SmallestFP = TypeVec[i];
-
- int OtherIntSize = 0;
- int OtherFPSize = 0;
- for (SmallVector<MVT::SimpleValueType, 2>::iterator TVI =
- Other.TypeVec.begin();
- TVI != Other.TypeVec.end();
- /* NULL */) {
- if (isInteger(*TVI)) {
- ++OtherIntSize;
- if (*TVI == SmallestInt) {
- TVI = Other.TypeVec.erase(TVI);
- --OtherIntSize;
+ // Only keep types with the same or fewer total bits
+ TypeSet InputSet(*this);
+
+ for (unsigned i = 0; i != TypeVec.size(); ++i) {
+ assert(isVector(TypeVec[i]) && "EnforceVector didn't work");
+ if (MVT(TypeVec[i]).getSizeInBits() > Size) {
+ TypeVec.erase(TypeVec.begin()+i--);
MadeChange = true;
- continue;
}
}
- else if (isFloatingPoint(*TVI)) {
- ++OtherFPSize;
- if (*TVI == SmallestFP) {
- TVI = Other.TypeVec.erase(TVI);
- --OtherFPSize;
- MadeChange = true;
- continue;
- }
+
+ if (TypeVec.empty()) { // FIXME: Really want an SMLoc here!
+ TP.error("Type inference contradiction found, forcing '" +
+ InputSet.getName() + "' to have the same or fewer bits than " +
+ Other.getName() + "'");
+ return false;
}
- ++TVI;
}
- // If this is the only type in the large set, the constraint can never be
- // satisfied.
- if ((Other.hasIntegerTypes() && OtherIntSize == 0)
- || (Other.hasFloatingPointTypes() && OtherFPSize == 0))
- TP.error("Type inference contradiction found, '" +
- Other.getName() + "' has nothing larger than '" + getName() +"'!");
-
- // Okay, find the largest type in the Other set and remove it from the
- // current set.
- MVT::SimpleValueType LargestInt = MVT::Other;
- for (unsigned i = 0, e = Other.TypeVec.size(); i != e; ++i)
- if (isInteger(Other.TypeVec[i])) {
- LargestInt = Other.TypeVec[i];
- break;
- }
- for (unsigned i = 1, e = Other.TypeVec.size(); i != e; ++i)
- if (isInteger(Other.TypeVec[i]) && Other.TypeVec[i] > LargestInt)
- LargestInt = Other.TypeVec[i];
-
- MVT::SimpleValueType LargestFP = MVT::Other;
- for (unsigned i = 0, e = Other.TypeVec.size(); i != e; ++i)
- if (isFloatingPoint(Other.TypeVec[i])) {
- LargestFP = Other.TypeVec[i];
- break;
- }
- for (unsigned i = 1, e = Other.TypeVec.size(); i != e; ++i)
- if (isFloatingPoint(Other.TypeVec[i]) && Other.TypeVec[i] > LargestFP)
- LargestFP = Other.TypeVec[i];
-
- int IntSize = 0;
- int FPSize = 0;
- for (SmallVector<MVT::SimpleValueType, 2>::iterator TVI =
- TypeVec.begin();
- TVI != TypeVec.end();
- /* NULL */) {
- if (isInteger(*TVI)) {
- ++IntSize;
- if (*TVI == LargestInt) {
- TVI = TypeVec.erase(TVI);
- --IntSize;
- MadeChange = true;
- continue;
- }
+ // This code does not currently handle nodes which have multiple types,
+ // where some types are integer, and some are fp. Assert that this is not
+ // the case.
+ assert(!(hasIntegerTypes() && hasFloatingPointTypes()) &&
+ !(Other.hasIntegerTypes() && Other.hasFloatingPointTypes()) &&
+ "SDTCisOpSmallerThanOp does not handle mixed int/fp types!");
+
+ if (TP.hasError())
+ return false;
+
+ // Okay, find the smallest scalar type from the other set and remove
+ // anything the same or smaller from the current set.
+ TypeSet InputSet(Other);
+ MVT::SimpleValueType Smallest = TypeVec[0];
+ for (unsigned i = 0; i != Other.TypeVec.size(); ++i) {
+ if (Other.TypeVec[i] <= Smallest) {
+ Other.TypeVec.erase(Other.TypeVec.begin()+i--);
+ MadeChange = true;
}
- else if (isFloatingPoint(*TVI)) {
- ++FPSize;
- if (*TVI == LargestFP) {
- TVI = TypeVec.erase(TVI);
- --FPSize;
- MadeChange = true;
- continue;
- }
+ }
+
+ if (Other.TypeVec.empty()) {
+ TP.error("Type inference contradiction found, '" + InputSet.getName() +
+ "' has nothing larger than '" + getName() +"'!");
+ return false;
+ }
+
+ // Okay, find the largest scalar type from the other set and remove
+ // anything the same or larger from the current set.
+ InputSet = TypeSet(*this);
+ MVT::SimpleValueType Largest = Other.TypeVec[Other.TypeVec.size()-1];
+ for (unsigned i = 0; i != TypeVec.size(); ++i) {
+ if (TypeVec[i] >= Largest) {
+ TypeVec.erase(TypeVec.begin()+i--);
+ MadeChange = true;
}
- ++TVI;
}
- // If this is the only type in the small set, the constraint can never be
- // satisfied.
- if ((hasIntegerTypes() && IntSize == 0)
- || (hasFloatingPointTypes() && FPSize == 0))
- TP.error("Type inference contradiction found, '" +
- getName() + "' has nothing smaller than '" + Other.getName()+"'!");
+ if (TypeVec.empty()) {
+ TP.error("Type inference contradiction found, '" + InputSet.getName() +
+ "' has nothing smaller than '" + Other.getName() +"'!");
+ return false;
+ }
return MadeChange;
}
/// whose element is specified by VTOperand.
bool EEVT::TypeSet::EnforceVectorEltTypeIs(EEVT::TypeSet &VTOperand,
TreePattern &TP) {
+ if (TP.hasError())
+ return false;
+
// "This" must be a vector and "VTOperand" must be a scalar.
bool MadeChange = false;
MadeChange |= EnforceVector(TP);
// If we know the vector type, it forces the scalar to agree.
if (isConcrete()) {
- EVT IVT = getConcrete();
+ MVT IVT = getConcrete();
IVT = IVT.getVectorElementType();
return MadeChange |
- VTOperand.MergeInTypeInfo(IVT.getSimpleVT().SimpleTy, TP);
+ VTOperand.MergeInTypeInfo(IVT.SimpleTy, TP);
}
// If the scalar type is known, filter out vector types whose element types
// Filter out all the types which don't have the right element type.
for (unsigned i = 0; i != TypeVec.size(); ++i) {
assert(isVector(TypeVec[i]) && "EnforceVector didn't work");
- if (EVT(TypeVec[i]).getVectorElementType().getSimpleVT().SimpleTy != VT) {
+ if (MVT(TypeVec[i]).getVectorElementType().SimpleTy != VT) {
TypeVec.erase(TypeVec.begin()+i--);
MadeChange = true;
}
}
- if (TypeVec.empty()) // FIXME: Really want an SMLoc here!
+ if (TypeVec.empty()) { // FIXME: Really want an SMLoc here!
TP.error("Type inference contradiction found, forcing '" +
InputSet.getName() + "' to have a vector element");
+ return false;
+ }
return MadeChange;
}
/// vector type specified by VTOperand.
bool EEVT::TypeSet::EnforceVectorSubVectorTypeIs(EEVT::TypeSet &VTOperand,
TreePattern &TP) {
+ if (TP.hasError())
+ return false;
+
// "This" must be a vector and "VTOperand" must be a vector.
bool MadeChange = false;
MadeChange |= EnforceVector(TP);
MadeChange |= VTOperand.EnforceVector(TP);
- // "This" must be larger than "VTOperand."
- MadeChange |= VTOperand.EnforceSmallerThan(*this, TP);
+ // If one side is known to be integer or known to be FP but the other side has
+ // no information, get at least the type integrality info in there.
+ if (!hasFloatingPointTypes())
+ MadeChange |= VTOperand.EnforceInteger(TP);
+ else if (!hasIntegerTypes())
+ MadeChange |= VTOperand.EnforceFloatingPoint(TP);
+ if (!VTOperand.hasFloatingPointTypes())
+ MadeChange |= EnforceInteger(TP);
+ else if (!VTOperand.hasIntegerTypes())
+ MadeChange |= EnforceFloatingPoint(TP);
+
+ assert(!isCompletelyUnknown() && !VTOperand.isCompletelyUnknown() &&
+ "Should have a type list now");
// If we know the vector type, it forces the scalar types to agree.
+ // Also force one vector to have more elements than the other.
if (isConcrete()) {
- EVT IVT = getConcrete();
+ MVT IVT = getConcrete();
+ unsigned NumElems = IVT.getVectorNumElements();
IVT = IVT.getVectorElementType();
- EEVT::TypeSet EltTypeSet(IVT.getSimpleVT().SimpleTy, TP);
+ EEVT::TypeSet EltTypeSet(IVT.SimpleTy, TP);
MadeChange |= VTOperand.EnforceVectorEltTypeIs(EltTypeSet, TP);
+
+ // Only keep types that have less elements than VTOperand.
+ TypeSet InputSet(VTOperand);
+
+ for (unsigned i = 0; i != VTOperand.TypeVec.size(); ++i) {
+ assert(isVector(VTOperand.TypeVec[i]) && "EnforceVector didn't work");
+ if (MVT(VTOperand.TypeVec[i]).getVectorNumElements() >= NumElems) {
+ VTOperand.TypeVec.erase(VTOperand.TypeVec.begin()+i--);
+ MadeChange = true;
+ }
+ }
+ if (VTOperand.TypeVec.empty()) { // FIXME: Really want an SMLoc here!
+ TP.error("Type inference contradiction found, forcing '" +
+ InputSet.getName() + "' to have less vector elements than '" +
+ getName() + "'");
+ return false;
+ }
} else if (VTOperand.isConcrete()) {
- EVT IVT = VTOperand.getConcrete();
+ MVT IVT = VTOperand.getConcrete();
+ unsigned NumElems = IVT.getVectorNumElements();
IVT = IVT.getVectorElementType();
- EEVT::TypeSet EltTypeSet(IVT.getSimpleVT().SimpleTy, TP);
+ EEVT::TypeSet EltTypeSet(IVT.SimpleTy, TP);
MadeChange |= EnforceVectorEltTypeIs(EltTypeSet, TP);
+
+ // Only keep types that have more elements than 'this'.
+ TypeSet InputSet(*this);
+
+ for (unsigned i = 0; i != TypeVec.size(); ++i) {
+ assert(isVector(TypeVec[i]) && "EnforceVector didn't work");
+ if (MVT(TypeVec[i]).getVectorNumElements() <= NumElems) {
+ TypeVec.erase(TypeVec.begin()+i--);
+ MadeChange = true;
+ }
+ }
+ if (TypeVec.empty()) { // FIXME: Really want an SMLoc here!
+ TP.error("Type inference contradiction found, forcing '" +
+ InputSet.getName() + "' to have more vector elements than '" +
+ VTOperand.getName() + "'");
+ return false;
+ }
}
return MadeChange;
//===----------------------------------------------------------------------===//
// Helpers for working with extended types.
-bool RecordPtrCmp::operator()(const Record *LHS, const Record *RHS) const {
- return LHS->getID() < RHS->getID();
-}
-
/// Dependent variable map for CodeGenDAGPattern variant generation
typedef std::map<std::string, int> DepVarMap;
static void FindDepVarsOf(TreePatternNode *N, DepVarMap &DepMap) {
if (N->isLeaf()) {
- if (dynamic_cast<DefInit*>(N->getLeafValue()) != NULL)
+ if (isa<DefInit>(N->getLeafValue()))
DepMap[N->getName()]++;
} else {
for (size_t i = 0, e = N->getNumChildren(); i != e; ++i)
unsigned Size = 3; // The node itself.
// If the root node is a ConstantSDNode, increases its size.
// e.g. (set R32:$dst, 0).
- if (P->isLeaf() && dynamic_cast<IntInit*>(P->getLeafValue()))
+ if (P->isLeaf() && isa<IntInit>(P->getLeafValue()))
Size += 2;
// FIXME: This is a hack to statically increase the priority of patterns
// specified. To get best possible pattern match we'll need to dynamically
// calculate the complexity of all patterns a dag can potentially map to.
const ComplexPattern *AM = P->getComplexPatternInfo(CGP);
- if (AM)
+ if (AM) {
Size += AM->getNumOperands() * 3;
+ // We don't want to count any children twice, so return early.
+ return Size;
+ }
+
// If this node has some predicate function that must match, it adds to the
// complexity of this node.
if (!P->getPredicateFns().empty())
Child->getType(0) != MVT::Other)
Size += getPatternSize(Child, CGP);
else if (Child->isLeaf()) {
- if (dynamic_cast<IntInit*>(Child->getLeafValue()))
+ if (isa<IntInit>(Child->getLeafValue()))
Size += 5; // Matches a ConstantSDNode (+3) and a specific value (+2).
else if (Child->getComplexPatternInfo(CGP))
Size += getPatternSize(Child, CGP);
/// Compute the complexity metric for the input pattern. This roughly
/// corresponds to the number of nodes that are covered.
-unsigned PatternToMatch::
+int PatternToMatch::
getPatternComplexity(const CodeGenDAGPatterns &CGP) const {
return getPatternSize(getSrcPattern(), CGP) + getAddedComplexity();
}
std::string PatternToMatch::getPredicateCheck() const {
std::string PredicateCheck;
for (unsigned i = 0, e = Predicates->getSize(); i != e; ++i) {
- if (DefInit *Pred = dynamic_cast<DefInit*>(Predicates->getElement(i))) {
+ if (DefInit *Pred = dyn_cast<DefInit>(Predicates->getElement(i))) {
Record *Def = Pred->getDef();
if (!Def->isSubClassOf("Predicate")) {
#ifndef NDEBUG
ConstraintType = SDTCisVT;
x.SDTCisVT_Info.VT = getValueType(R->getValueAsDef("VT"));
if (x.SDTCisVT_Info.VT == MVT::isVoid)
- throw TGError(R->getLoc(), "Cannot use 'Void' as type to SDTCisVT");
+ PrintFatalError(R->getLoc(), "Cannot use 'Void' as type to SDTCisVT");
} else if (R->isSubClassOf("SDTCisPtrTy")) {
ConstraintType = SDTCisPtrTy;
/// ApplyTypeConstraint - Given a node in a pattern, apply this type
/// constraint to the nodes operands. This returns true if it makes a
-/// change, false otherwise. If a type contradiction is found, throw an
-/// exception.
+/// change, false otherwise. If a type contradiction is found, flag an error.
bool SDTypeConstraint::ApplyTypeConstraint(TreePatternNode *N,
const SDNodeInfo &NodeInfo,
TreePattern &TP) const {
+ if (TP.hasError())
+ return false;
+
unsigned ResNo = 0; // The result number being referenced.
TreePatternNode *NodeToApply = getOperandNum(OperandNo, N, NodeInfo, ResNo);
// The NodeToApply must be a leaf node that is a VT. OtherOperandNum must
// have an integer type that is smaller than the VT.
if (!NodeToApply->isLeaf() ||
- !dynamic_cast<DefInit*>(NodeToApply->getLeafValue()) ||
+ !isa<DefInit>(NodeToApply->getLeafValue()) ||
!static_cast<DefInit*>(NodeToApply->getLeafValue())->getDef()
- ->isSubClassOf("ValueType"))
+ ->isSubClassOf("ValueType")) {
TP.error(N->getOperator()->getName() + " expects a VT operand!");
+ return false;
+ }
MVT::SimpleValueType VT =
getValueType(static_cast<DefInit*>(NodeToApply->getLeafValue())->getDef());
llvm_unreachable("Invalid ConstraintType!");
}
+// Update the node type to match an instruction operand or result as specified
+// in the ins or outs lists on the instruction definition. Return true if the
+// type was actually changed.
+bool TreePatternNode::UpdateNodeTypeFromInst(unsigned ResNo,
+ Record *Operand,
+ TreePattern &TP) {
+ // The 'unknown' operand indicates that types should be inferred from the
+ // context.
+ if (Operand->isSubClassOf("unknown_class"))
+ return false;
+
+ // The Operand class specifies a type directly.
+ if (Operand->isSubClassOf("Operand"))
+ return UpdateNodeType(ResNo, getValueType(Operand->getValueAsDef("Type")),
+ TP);
+
+ // PointerLikeRegClass has a type that is determined at runtime.
+ if (Operand->isSubClassOf("PointerLikeRegClass"))
+ return UpdateNodeType(ResNo, MVT::iPTR, TP);
+
+ // Both RegisterClass and RegisterOperand operands derive their types from a
+ // register class def.
+ Record *RC = nullptr;
+ if (Operand->isSubClassOf("RegisterClass"))
+ RC = Operand;
+ else if (Operand->isSubClassOf("RegisterOperand"))
+ RC = Operand->getValueAsDef("RegClass");
+
+ assert(RC && "Unknown operand type");
+ CodeGenTarget &Tgt = TP.getDAGPatterns().getTargetInfo();
+ return UpdateNodeType(ResNo, Tgt.getRegisterClass(RC).getValueTypes(), TP);
+}
+
+
//===----------------------------------------------------------------------===//
// SDNodeInfo implementation
//
// Get the result tree.
DagInit *Tree = Operator->getValueAsDag("Fragment");
- Record *Op = 0;
- if (Tree && dynamic_cast<DefInit*>(Tree->getOperator()))
- Op = dynamic_cast<DefInit*>(Tree->getOperator())->getDef();
+ Record *Op = nullptr;
+ if (Tree)
+ if (DefInit *DI = dyn_cast<DefInit>(Tree->getOperator()))
+ Op = DI->getDef();
assert(Op && "Invalid Fragment");
return GetNumNodeResults(Op, CDP);
}
if (Operator->isSubClassOf("SDNodeXForm"))
return 1; // FIXME: Generalize SDNodeXForm
+ if (Operator->isSubClassOf("ValueType"))
+ return 1; // A type-cast of one result.
+
+ if (Operator->isSubClassOf("ComplexPattern"))
+ return 1;
+
Operator->dump();
errs() << "Unhandled node in GetNumNodeResults\n";
exit(1);
return false;
if (isLeaf()) {
- if (DefInit *DI = dynamic_cast<DefInit*>(getLeafValue())) {
- if (DefInit *NDI = dynamic_cast<DefInit*>(N->getLeafValue())) {
+ if (DefInit *DI = dyn_cast<DefInit>(getLeafValue())) {
+ if (DefInit *NDI = dyn_cast<DefInit>(N->getLeafValue())) {
return ((DI->getDef() == NDI->getDef())
&& (DepVars.find(getName()) == DepVars.end()
|| getName() == N->getName()));
TreePatternNode *Child = getChild(i);
if (Child->isLeaf()) {
Init *Val = Child->getLeafValue();
- if (dynamic_cast<DefInit*>(Val) &&
- static_cast<DefInit*>(Val)->getDef()->getName() == "node") {
+ // Note that, when substituting into an output pattern, Val might be an
+ // UnsetInit.
+ if (isa<UnsetInit>(Val) || (isa<DefInit>(Val) &&
+ cast<DefInit>(Val)->getDef()->getName() == "node")) {
// We found a use of a formal argument, replace it with its value.
TreePatternNode *NewChild = ArgMap[Child->getName()];
assert(NewChild && "Couldn't find formal argument!");
/// fragments, inline them into place, giving us a pattern without any
/// PatFrag references.
TreePatternNode *TreePatternNode::InlinePatternFragments(TreePattern &TP) {
- if (isLeaf()) return this; // nothing to do.
+ if (TP.hasError())
+ return nullptr;
+
+ if (isLeaf())
+ return this; // nothing to do.
Record *Op = getOperator();
if (!Op->isSubClassOf("PatFrag")) {
TreePattern *Frag = TP.getDAGPatterns().getPatternFragment(Op);
// Verify that we are passing the right number of operands.
- if (Frag->getNumArgs() != Children.size())
+ if (Frag->getNumArgs() != Children.size()) {
TP.error("'" + Op->getName() + "' fragment requires " +
utostr(Frag->getNumArgs()) + " operands!");
+ return nullptr;
+ }
TreePatternNode *FragTree = Frag->getOnlyTree()->clone();
/// type which should be applied to it. This will infer the type of register
/// references from the register file information, for example.
///
+/// When Unnamed is set, return the type of a DAG operand with no name, such as
+/// the F8RC register class argument in:
+///
+/// (COPY_TO_REGCLASS GPR:$src, F8RC)
+///
+/// When Unnamed is false, return the type of a named DAG operand such as the
+/// GPR:$src operand above.
+///
static EEVT::TypeSet getImplicitType(Record *R, unsigned ResNo,
- bool NotRegisters, TreePattern &TP) {
+ bool NotRegisters,
+ bool Unnamed,
+ TreePattern &TP) {
// Check to see if this is a register operand.
if (R->isSubClassOf("RegisterOperand")) {
assert(ResNo == 0 && "Regoperand ref only has one result!");
// Check to see if this is a register or a register class.
if (R->isSubClassOf("RegisterClass")) {
assert(ResNo == 0 && "Regclass ref only has one result!");
+ // An unnamed register class represents itself as an i32 immediate, for
+ // example on a COPY_TO_REGCLASS instruction.
+ if (Unnamed)
+ return EEVT::TypeSet(MVT::i32, TP);
+
+ // In a named operand, the register class provides the possible set of
+ // types.
if (NotRegisters)
return EEVT::TypeSet(); // Unknown.
const CodeGenTarget &T = TP.getDAGPatterns().getTargetInfo();
return EEVT::TypeSet();
}
- if (R->isSubClassOf("ValueType") || R->isSubClassOf("CondCode")) {
+ if (R->isSubClassOf("ValueType")) {
assert(ResNo == 0 && "This node only has one result!");
- // Using a VTSDNode or CondCodeSDNode.
+ // An unnamed VTSDNode represents itself as an MVT::Other immediate.
+ //
+ // (sext_inreg GPR:$src, i16)
+ // ~~~
+ if (Unnamed)
+ return EEVT::TypeSet(MVT::Other, TP);
+ // With a name, the ValueType simply provides the type of the named
+ // variable.
+ //
+ // (sext_inreg i32:$src, i16)
+ // ~~~~~~~~
+ if (NotRegisters)
+ return EEVT::TypeSet(); // Unknown.
+ return EEVT::TypeSet(getValueType(R), TP);
+ }
+
+ if (R->isSubClassOf("CondCode")) {
+ assert(ResNo == 0 && "This node only has one result!");
+ // Using a CondCodeSDNode.
return EEVT::TypeSet(MVT::Other, TP);
}
return EEVT::TypeSet(); // Unknown.
}
+ if (R->isSubClassOf("Operand"))
+ return EEVT::TypeSet(getValueType(R->getValueAsDef("Type")));
+
TP.error("Unknown node flavor used in pattern: " + R->getName());
return EEVT::TypeSet(MVT::Other, TP);
}
if (getOperator() != CDP.get_intrinsic_void_sdnode() &&
getOperator() != CDP.get_intrinsic_w_chain_sdnode() &&
getOperator() != CDP.get_intrinsic_wo_chain_sdnode())
- return 0;
+ return nullptr;
- unsigned IID =
- dynamic_cast<IntInit*>(getChild(0)->getLeafValue())->getValue();
+ unsigned IID = cast<IntInit>(getChild(0)->getLeafValue())->getValue();
return &CDP.getIntrinsicInfo(IID);
}
/// return the ComplexPattern information, otherwise return null.
const ComplexPattern *
TreePatternNode::getComplexPatternInfo(const CodeGenDAGPatterns &CGP) const {
- if (!isLeaf()) return 0;
+ Record *Rec;
+ if (isLeaf()) {
+ DefInit *DI = dyn_cast<DefInit>(getLeafValue());
+ if (!DI)
+ return nullptr;
+ Rec = DI->getDef();
+ } else
+ Rec = getOperator();
+
+ if (!Rec->isSubClassOf("ComplexPattern"))
+ return nullptr;
+ return &CGP.getComplexPattern(Rec);
+}
+
+unsigned TreePatternNode::getNumMIResults(const CodeGenDAGPatterns &CGP) const {
+ // A ComplexPattern specifically declares how many results it fills in.
+ if (const ComplexPattern *CP = getComplexPatternInfo(CGP))
+ return CP->getNumOperands();
- DefInit *DI = dynamic_cast<DefInit*>(getLeafValue());
- if (DI && DI->getDef()->isSubClassOf("ComplexPattern"))
- return &CGP.getComplexPattern(DI->getDef());
- return 0;
+ // If MIOperandInfo is specified, that gives the count.
+ if (isLeaf()) {
+ DefInit *DI = dyn_cast<DefInit>(getLeafValue());
+ if (DI && DI->getDef()->isSubClassOf("Operand")) {
+ DagInit *MIOps = DI->getDef()->getValueAsDag("MIOperandInfo");
+ if (MIOps->getNumArgs())
+ return MIOps->getNumArgs();
+ }
+ }
+
+ // Otherwise there is just one result.
+ return 1;
}
/// NodeHasProperty - Return true if this node has the specified property.
/// ApplyTypeConstraints - Apply all of the type constraints relevant to
/// this node and its children in the tree. This returns true if it makes a
-/// change, false otherwise. If a type contradiction is found, throw an
-/// exception.
+/// change, false otherwise. If a type contradiction is found, flag an error.
bool TreePatternNode::ApplyTypeConstraints(TreePattern &TP, bool NotRegisters) {
+ if (TP.hasError())
+ return false;
+
CodeGenDAGPatterns &CDP = TP.getDAGPatterns();
if (isLeaf()) {
- if (DefInit *DI = dynamic_cast<DefInit*>(getLeafValue())) {
+ if (DefInit *DI = dyn_cast<DefInit>(getLeafValue())) {
// If it's a regclass or something else known, include the type.
bool MadeChange = false;
for (unsigned i = 0, e = Types.size(); i != e; ++i)
MadeChange |= UpdateNodeType(i, getImplicitType(DI->getDef(), i,
- NotRegisters, TP), TP);
+ NotRegisters,
+ !hasName(), TP), TP);
return MadeChange;
}
- if (IntInit *II = dynamic_cast<IntInit*>(getLeafValue())) {
+ if (IntInit *II = dyn_cast<IntInit>(getLeafValue())) {
assert(Types.size() == 1 && "Invalid IntInit");
// Int inits are always integers. :)
if (VT == MVT::iPTR || VT == MVT::iPTRAny)
return MadeChange;
- unsigned Size = EVT(VT).getSizeInBits();
+ unsigned Size = MVT(VT).getSizeInBits();
// Make sure that the value is representable for this type.
if (Size >= 32) return MadeChange;
TP.error("Integer value '" + itostr(II->getValue()) +
"' is out of range for type '" + getEnumName(getType(0)) + "'!");
- return MadeChange;
+ return false;
}
return false;
}
return MadeChange;
}
- if (getOperator()->getName() == "COPY_TO_REGCLASS") {
- bool MadeChange = false;
- MadeChange |= getChild(0)->ApplyTypeConstraints(TP, NotRegisters);
- MadeChange |= getChild(1)->ApplyTypeConstraints(TP, NotRegisters);
-
- assert(getChild(0)->getNumTypes() == 1 &&
- getChild(1)->getNumTypes() == 1 && "Unhandled case");
-
- // child #1 of COPY_TO_REGCLASS should be a register class. We don't care
- // what type it gets, so if it didn't get a concrete type just give it the
- // first viable type from the reg class.
- if (!getChild(1)->hasTypeSet(0) &&
- !getChild(1)->getExtType(0).isCompletelyUnknown()) {
- MVT::SimpleValueType RCVT = getChild(1)->getExtType(0).getTypeList()[0];
- MadeChange |= getChild(1)->UpdateNodeType(0, RCVT, TP);
- }
- return MadeChange;
- }
-
if (const CodeGenIntrinsic *Int = getIntrinsicInfo(CDP)) {
bool MadeChange = false;
for (unsigned i = 0, e = NumRetVTs; i != e; ++i)
MadeChange |= UpdateNodeType(i, Int->IS.RetVTs[i], TP);
- if (getNumChildren() != NumParamVTs + 1)
+ if (getNumChildren() != NumParamVTs + 1) {
TP.error("Intrinsic '" + Int->Name + "' expects " +
utostr(NumParamVTs) + " operands, not " +
utostr(getNumChildren() - 1) + " operands!");
+ return false;
+ }
// Apply type info to the intrinsic ID.
MadeChange |= getChild(0)->UpdateNodeType(0, MVT::iPTR, TP);
// Check that the number of operands is sane. Negative operands -> varargs.
if (NI.getNumOperands() >= 0 &&
- getNumChildren() != (unsigned)NI.getNumOperands())
+ getNumChildren() != (unsigned)NI.getNumOperands()) {
TP.error(getOperator()->getName() + " node requires exactly " +
itostr(NI.getNumOperands()) + " operands!");
+ return false;
+ }
bool MadeChange = NI.ApplyTypeConstraints(this, TP);
for (unsigned i = 0, e = getNumChildren(); i != e; ++i)
// (outs) list of the instruction.
// FIXME: Cap at one result so far.
unsigned NumResultsToAdd = InstInfo.Operands.NumDefs ? 1 : 0;
- for (unsigned ResNo = 0; ResNo != NumResultsToAdd; ++ResNo) {
- Record *ResultNode = Inst.getResult(ResNo);
-
- if (ResultNode->isSubClassOf("PointerLikeRegClass")) {
- MadeChange |= UpdateNodeType(ResNo, MVT::iPTR, TP);
- } else if (ResultNode->isSubClassOf("RegisterOperand")) {
- Record *RegClass = ResultNode->getValueAsDef("RegClass");
- const CodeGenRegisterClass &RC =
- CDP.getTargetInfo().getRegisterClass(RegClass);
- MadeChange |= UpdateNodeType(ResNo, RC.getValueTypes(), TP);
- } else if (ResultNode->getName() == "unknown") {
- // Nothing to do.
- } else {
- assert(ResultNode->isSubClassOf("RegisterClass") &&
- "Operands should be register classes!");
- const CodeGenRegisterClass &RC =
- CDP.getTargetInfo().getRegisterClass(ResultNode);
- MadeChange |= UpdateNodeType(ResNo, RC.getValueTypes(), TP);
- }
- }
+ for (unsigned ResNo = 0; ResNo != NumResultsToAdd; ++ResNo)
+ MadeChange |= UpdateNodeTypeFromInst(ResNo, Inst.getResult(ResNo), TP);
// If the instruction has implicit defs, we apply the first one as a result.
// FIXME: This sucks, it should apply all implicit defs.
continue;
// Verify that we didn't run out of provided operands.
- if (ChildNo >= getNumChildren())
+ if (ChildNo >= getNumChildren()) {
TP.error("Instruction '" + getOperator()->getName() +
"' expects more operands than were provided.");
+ return false;
+ }
- MVT::SimpleValueType VT;
TreePatternNode *Child = getChild(ChildNo++);
unsigned ChildResNo = 0; // Instructions always use res #0 of their op.
- if (OperandNode->isSubClassOf("RegisterClass")) {
- const CodeGenRegisterClass &RC =
- CDP.getTargetInfo().getRegisterClass(OperandNode);
- MadeChange |= Child->UpdateNodeType(ChildResNo, RC.getValueTypes(), TP);
- } else if (OperandNode->isSubClassOf("RegisterOperand")) {
- Record *RegClass = OperandNode->getValueAsDef("RegClass");
- const CodeGenRegisterClass &RC =
- CDP.getTargetInfo().getRegisterClass(RegClass);
- MadeChange |= Child->UpdateNodeType(ChildResNo, RC.getValueTypes(), TP);
- } else if (OperandNode->isSubClassOf("Operand")) {
- VT = getValueType(OperandNode->getValueAsDef("Type"));
- MadeChange |= Child->UpdateNodeType(ChildResNo, VT, TP);
- } else if (OperandNode->isSubClassOf("PointerLikeRegClass")) {
- MadeChange |= Child->UpdateNodeType(ChildResNo, MVT::iPTR, TP);
- } else if (OperandNode->getName() == "unknown") {
- // Nothing to do.
- } else
- llvm_unreachable("Unknown operand type!");
+ // If the operand has sub-operands, they may be provided by distinct
+ // child patterns, so attempt to match each sub-operand separately.
+ if (OperandNode->isSubClassOf("Operand")) {
+ DagInit *MIOpInfo = OperandNode->getValueAsDag("MIOperandInfo");
+ if (unsigned NumArgs = MIOpInfo->getNumArgs()) {
+ // But don't do that if the whole operand is being provided by
+ // a single ComplexPattern-related Operand.
+
+ if (Child->getNumMIResults(CDP) < NumArgs) {
+ // Match first sub-operand against the child we already have.
+ Record *SubRec = cast<DefInit>(MIOpInfo->getArg(0))->getDef();
+ MadeChange |=
+ Child->UpdateNodeTypeFromInst(ChildResNo, SubRec, TP);
+
+ // And the remaining sub-operands against subsequent children.
+ for (unsigned Arg = 1; Arg < NumArgs; ++Arg) {
+ if (ChildNo >= getNumChildren()) {
+ TP.error("Instruction '" + getOperator()->getName() +
+ "' expects more operands than were provided.");
+ return false;
+ }
+ Child = getChild(ChildNo++);
+
+ SubRec = cast<DefInit>(MIOpInfo->getArg(Arg))->getDef();
+ MadeChange |=
+ Child->UpdateNodeTypeFromInst(ChildResNo, SubRec, TP);
+ }
+ continue;
+ }
+ }
+ }
- MadeChange |= Child->ApplyTypeConstraints(TP, NotRegisters);
+ // If we didn't match by pieces above, attempt to match the whole
+ // operand now.
+ MadeChange |= Child->UpdateNodeTypeFromInst(ChildResNo, OperandNode, TP);
}
- if (ChildNo != getNumChildren())
+ if (ChildNo != getNumChildren()) {
TP.error("Instruction '" + getOperator()->getName() +
"' was provided too many operands!");
+ return false;
+ }
+
+ for (unsigned i = 0, e = getNumChildren(); i != e; ++i)
+ MadeChange |= getChild(i)->ApplyTypeConstraints(TP, NotRegisters);
+ return MadeChange;
+ }
+
+ if (getOperator()->isSubClassOf("ComplexPattern")) {
+ bool MadeChange = false;
+
+ for (unsigned i = 0; i < getNumChildren(); ++i)
+ MadeChange |= getChild(i)->ApplyTypeConstraints(TP, NotRegisters);
return MadeChange;
}
assert(getOperator()->isSubClassOf("SDNodeXForm") && "Unknown node type!");
// Node transforms always take one operand.
- if (getNumChildren() != 1)
+ if (getNumChildren() != 1) {
TP.error("Node transform '" + getOperator()->getName() +
"' requires one operand!");
+ return false;
+ }
bool MadeChange = getChild(0)->ApplyTypeConstraints(TP, NotRegisters);
static bool OnlyOnRHSOfCommutative(TreePatternNode *N) {
if (!N->isLeaf() && N->getOperator()->getName() == "imm")
return true;
- if (N->isLeaf() && dynamic_cast<IntInit*>(N->getLeafValue()))
+ if (N->isLeaf() && isa<IntInit>(N->getLeafValue()))
return true;
return false;
}
return true;
}
+ if (getOperator()->isSubClassOf("ComplexPattern"))
+ return true;
+
// If this node is a commutative operator, check that the LHS isn't an
// immediate.
const SDNodeInfo &NodeInfo = CDP.getSDNodeInfo(getOperator());
//
TreePattern::TreePattern(Record *TheRec, ListInit *RawPat, bool isInput,
- CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp){
- isInputPattern = isInput;
+ CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp),
+ isInputPattern(isInput), HasError(false) {
for (unsigned i = 0, e = RawPat->getSize(); i != e; ++i)
Trees.push_back(ParseTreePattern(RawPat->getElement(i), ""));
}
TreePattern::TreePattern(Record *TheRec, DagInit *Pat, bool isInput,
- CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp){
- isInputPattern = isInput;
+ CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp),
+ isInputPattern(isInput), HasError(false) {
Trees.push_back(ParseTreePattern(Pat, ""));
}
TreePattern::TreePattern(Record *TheRec, TreePatternNode *Pat, bool isInput,
- CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp){
- isInputPattern = isInput;
+ CodeGenDAGPatterns &cdp) : TheRecord(TheRec), CDP(cdp),
+ isInputPattern(isInput), HasError(false) {
Trees.push_back(Pat);
}
-void TreePattern::error(const std::string &Msg) const {
+void TreePattern::error(const std::string &Msg) {
+ if (HasError)
+ return;
dump();
- throw TGError(TheRecord->getLoc(), "In " + TheRecord->getName() + ": " + Msg);
+ PrintError(TheRecord->getLoc(), "In " + TheRecord->getName() + ": " + Msg);
+ HasError = true;
}
void TreePattern::ComputeNamedNodes() {
TreePatternNode *TreePattern::ParseTreePattern(Init *TheInit, StringRef OpName){
- if (DefInit *DI = dynamic_cast<DefInit*>(TheInit)) {
+ if (DefInit *DI = dyn_cast<DefInit>(TheInit)) {
Record *R = DI->getDef();
// Direct reference to a leaf DagNode or PatFrag? Turn it into a
return Res;
}
- if (IntInit *II = dynamic_cast<IntInit*>(TheInit)) {
+ // ?:$name or just $name.
+ if (TheInit == UnsetInit::get()) {
+ if (OpName.empty())
+ error("'?' argument requires a name to match with operand list");
+ TreePatternNode *Res = new TreePatternNode(TheInit, 1);
+ Args.push_back(OpName);
+ Res->setName(OpName);
+ return Res;
+ }
+
+ if (IntInit *II = dyn_cast<IntInit>(TheInit)) {
if (!OpName.empty())
error("Constant int argument should not have a name!");
return new TreePatternNode(II, 1);
}
- if (BitsInit *BI = dynamic_cast<BitsInit*>(TheInit)) {
+ if (BitsInit *BI = dyn_cast<BitsInit>(TheInit)) {
// Turn this into an IntInit.
Init *II = BI->convertInitializerTo(IntRecTy::get());
- if (II == 0 || !dynamic_cast<IntInit*>(II))
+ if (!II || !isa<IntInit>(II))
error("Bits value must be constants!");
return ParseTreePattern(II, OpName);
}
- DagInit *Dag = dynamic_cast<DagInit*>(TheInit);
+ DagInit *Dag = dyn_cast<DagInit>(TheInit);
if (!Dag) {
TheInit->dump();
error("Pattern has unexpected init kind!");
}
- DefInit *OpDef = dynamic_cast<DefInit*>(Dag->getOperator());
+ DefInit *OpDef = dyn_cast<DefInit>(Dag->getOperator());
if (!OpDef) error("Pattern has unexpected operator type!");
Record *Operator = OpDef->getDef();
!Operator->isSubClassOf("Instruction") &&
!Operator->isSubClassOf("SDNodeXForm") &&
!Operator->isSubClassOf("Intrinsic") &&
+ !Operator->isSubClassOf("ComplexPattern") &&
Operator->getName() != "set" &&
Operator->getName() != "implicit")
error("Unrecognized node '" + Operator->getName() + "'!");
Children.insert(Children.begin(), IIDNode);
}
+ if (Operator->isSubClassOf("ComplexPattern")) {
+ for (unsigned i = 0; i < Children.size(); ++i) {
+ TreePatternNode *Child = Children[i];
+
+ if (Child->getName().empty())
+ error("All arguments to a ComplexPattern must be named");
+
+ // Check that the ComplexPattern uses are consistent: "(MY_PAT $a, $b)"
+ // and "(MY_PAT $b, $a)" should not be allowed in the same pattern;
+ // neither should "(MY_PAT_1 $a, $b)" and "(MY_PAT_2 $a, $b)".
+ auto OperandId = std::make_pair(Operator, i);
+ auto PrevOp = ComplexPatternOperands.find(Child->getName());
+ if (PrevOp != ComplexPatternOperands.end()) {
+ if (PrevOp->getValue() != OperandId)
+ error("All ComplexPattern operands must appear consistently: "
+ "in the same order in just one ComplexPattern instance.");
+ } else
+ ComplexPatternOperands[Child->getName()] = OperandId;
+ }
+ }
+
unsigned NumResults = GetNumNodeResults(Operator, CDP);
TreePatternNode *Result = new TreePatternNode(Operator, Children, NumResults);
Result->setName(OpName);
/// InferAllTypes - Infer/propagate as many types throughout the expression
/// patterns as possible. Return true if all types are inferred, false
-/// otherwise. Throw an exception if a type contradiction is found.
+/// otherwise. Flags an error if a type contradiction is found.
bool TreePattern::
InferAllTypes(const StringMap<SmallVector<TreePatternNode*,1> > *InNamedTypes) {
if (NamedNodes.empty())
// If we have input named node types, propagate their types to the named
// values here.
if (InNamedTypes) {
- // FIXME: Should be error?
- assert(InNamedTypes->count(I->getKey()) &&
- "Named node in output pattern but not input pattern?");
+ if (!InNamedTypes->count(I->getKey())) {
+ error("Node '" + std::string(I->getKey()) +
+ "' in output pattern but not input pattern");
+ return true;
+ }
const SmallVectorImpl<TreePatternNode*> &InNodes =
InNamedTypes->find(I->getKey())->second;
// us to match things like:
// def : Pat<(v1i64 (bitconvert(v2i32 DPR:$src))), (v1i64 DPR:$src)>;
if (Nodes[i] == Trees[0] && Nodes[i]->isLeaf()) {
- DefInit *DI = dynamic_cast<DefInit*>(Nodes[i]->getLeafValue());
+ DefInit *DI = dyn_cast<DefInit>(Nodes[i]->getLeafValue());
if (DI && (DI->getDef()->isSubClassOf("RegisterClass") ||
DI->getDef()->isSubClassOf("RegisterOperand")))
continue;
ParsePatternFragments();
ParseDefaultOperands();
ParseInstructions();
+ ParsePatternFragments(/*OutFrags*/true);
ParsePatterns();
// Generate variants. For example, commutative patterns can match
/// inline fragments together as necessary, so that there are no references left
/// inside a pattern fragment to a pattern fragment.
///
-void CodeGenDAGPatterns::ParsePatternFragments() {
+void CodeGenDAGPatterns::ParsePatternFragments(bool OutFrags) {
std::vector<Record*> Fragments = Records.getAllDerivedDefinitions("PatFrag");
// First step, parse all of the fragments.
for (unsigned i = 0, e = Fragments.size(); i != e; ++i) {
+ if (OutFrags != Fragments[i]->isSubClassOf("OutPatFrag"))
+ continue;
+
DagInit *Tree = Fragments[i]->getValueAsDag("Fragment");
- TreePattern *P = new TreePattern(Fragments[i], Tree, true, *this);
+ TreePattern *P =
+ new TreePattern(Fragments[i], Tree,
+ !Fragments[i]->isSubClassOf("OutPatFrag"), *this);
PatternFragments[Fragments[i]] = P;
// Validate the argument list, converting it to set, to discard duplicates.
// Parse the operands list.
DagInit *OpsList = Fragments[i]->getValueAsDag("Operands");
- DefInit *OpsOp = dynamic_cast<DefInit*>(OpsList->getOperator());
+ DefInit *OpsOp = dyn_cast<DefInit>(OpsList->getOperator());
// Special cases: ops == outs == ins. Different names are used to
// improve readability.
if (!OpsOp ||
// Copy over the arguments.
Args.clear();
for (unsigned j = 0, e = OpsList->getNumArgs(); j != e; ++j) {
- if (!dynamic_cast<DefInit*>(OpsList->getArg(j)) ||
- static_cast<DefInit*>(OpsList->getArg(j))->
- getDef()->getName() != "node")
+ if (!isa<DefInit>(OpsList->getArg(j)) ||
+ cast<DefInit>(OpsList->getArg(j))->getDef()->getName() != "node")
P->error("Operands list should all be 'node' values.");
if (OpsList->getArgName(j).empty())
P->error("Operands list should have names for each operand!");
// Now that we've parsed all of the tree fragments, do a closure on them so
// that there are not references to PatFrags left inside of them.
for (unsigned i = 0, e = Fragments.size(); i != e; ++i) {
+ if (OutFrags != Fragments[i]->isSubClassOf("OutPatFrag"))
+ continue;
+
TreePattern *ThePat = PatternFragments[Fragments[i]];
ThePat->InlinePatternFragments();
// Infer as many types as possible. Don't worry about it if we don't infer
// all of them, some may depend on the inputs of the pattern.
- try {
- ThePat->InferAllTypes();
- } catch (...) {
- // If this pattern fragment is not supported by this target (no types can
- // satisfy its constraints), just ignore it. If the bogus pattern is
- // actually used by instructions, the type consistency error will be
- // reported there.
- }
+ ThePat->InferAllTypes();
+ ThePat->resetError();
// If debugging, print out the pattern fragment result.
DEBUG(ThePat->dump());
/* Resolve all types */;
if (TPN->ContainsUnresolvedType()) {
- throw "Value #" + utostr(i) + " of OperandWithDefaultOps '" +
- DefaultOps[i]->getName() +"' doesn't have a concrete type!";
+ PrintFatalError("Value #" + Twine(i) + " of OperandWithDefaultOps '" +
+ DefaultOps[i]->getName() +
+ "' doesn't have a concrete type!");
}
DefaultOpInfo.DefaultOps.push_back(TPN);
}
// No name -> not interesting.
if (Pat->getName().empty()) {
if (Pat->isLeaf()) {
- DefInit *DI = dynamic_cast<DefInit*>(Pat->getLeafValue());
+ DefInit *DI = dyn_cast<DefInit>(Pat->getLeafValue());
if (DI && (DI->getDef()->isSubClassOf("RegisterClass") ||
DI->getDef()->isSubClassOf("RegisterOperand")))
I->error("Input " + DI->getDef()->getName() + " must be named!");
Record *Rec;
if (Pat->isLeaf()) {
- DefInit *DI = dynamic_cast<DefInit*>(Pat->getLeafValue());
+ DefInit *DI = dyn_cast<DefInit>(Pat->getLeafValue());
if (!DI) I->error("Input $" + Pat->getName() + " must be an identifier!");
Rec = DI->getDef();
} else {
}
Record *SlotRec;
if (Slot->isLeaf()) {
- SlotRec = dynamic_cast<DefInit*>(Slot->getLeafValue())->getDef();
+ SlotRec = cast<DefInit>(Slot->getLeafValue())->getDef();
} else {
assert(Slot->getNumChildren() == 0 && "can't be a use with children!");
SlotRec = Slot->getOperator();
if (!Dest->isLeaf())
I->error("implicitly defined value should be a register!");
- DefInit *Val = dynamic_cast<DefInit*>(Dest->getLeafValue());
+ DefInit *Val = dyn_cast<DefInit>(Dest->getLeafValue());
if (!Val || !Val->getDef()->isSubClassOf("Register"))
I->error("implicitly defined value should be a register!");
InstImpResults.push_back(Val->getDef());
if (!Dest->isLeaf())
I->error("set destination should be a register!");
- DefInit *Val = dynamic_cast<DefInit*>(Dest->getLeafValue());
+ DefInit *Val = dyn_cast<DefInit>(Dest->getLeafValue());
if (!Val)
I->error("set destination should be a register!");
if (Val->getDef()->isSubClassOf("RegisterClass") ||
+ Val->getDef()->isSubClassOf("ValueType") ||
Val->getDef()->isSubClassOf("RegisterOperand") ||
Val->getDef()->isSubClassOf("PointerLikeRegClass")) {
if (Dest->getName().empty())
return false;
const TreePatternNode *N0 = N->getChild(0);
- if (!N0->isLeaf() || !dynamic_cast<DefInit*>(N0->getLeafValue()))
+ if (!N0->isLeaf() || !isa<DefInit>(N0->getLeafValue()))
return false;
const TreePatternNode *N1 = N->getChild(1);
public:
void AnalyzeNode(const TreePatternNode *N) {
if (N->isLeaf()) {
- if (DefInit *DI = dynamic_cast<DefInit*>(N->getLeafValue())) {
+ if (DefInit *DI = dyn_cast<DefInit>(N->getLeafValue())) {
Record *LeafRec = DI->getDef();
// Handle ComplexPattern leaves.
if (LeafRec->isSubClassOf("ComplexPattern")) {
return;
}
- // Get information about the SDNode for the operator.
- const SDNodeInfo &OpInfo = CDP.getSDNodeInfo(N->getOperator());
-
// Notice properties of the node.
- if (OpInfo.hasProperty(SDNPMayStore)) mayStore = true;
- if (OpInfo.hasProperty(SDNPMayLoad)) mayLoad = true;
- if (OpInfo.hasProperty(SDNPSideEffect)) hasSideEffects = true;
- if (OpInfo.hasProperty(SDNPVariadic)) isVariadic = true;
+ if (N->NodeHasProperty(SDNPMayStore, CDP)) mayStore = true;
+ if (N->NodeHasProperty(SDNPMayLoad, CDP)) mayLoad = true;
+ if (N->NodeHasProperty(SDNPSideEffect, CDP)) hasSideEffects = true;
+ if (N->NodeHasProperty(SDNPVariadic, CDP)) isVariadic = true;
if (const CodeGenIntrinsic *IntInfo = N->getIntrinsicInfo(CDP)) {
// If this is an intrinsic, analyze it.
/// hasNullFragReference - Return true if the DAG has any reference to the
/// null_frag operator.
static bool hasNullFragReference(DagInit *DI) {
- DefInit *OpDef = dynamic_cast<DefInit*>(DI->getOperator());
+ DefInit *OpDef = dyn_cast<DefInit>(DI->getOperator());
if (!OpDef) return false;
Record *Operator = OpDef->getDef();
if (Operator->getName() == "null_frag") return true;
// If any of the arguments reference the null fragment, return true.
for (unsigned i = 0, e = DI->getNumArgs(); i != e; ++i) {
- DagInit *Arg = dynamic_cast<DagInit*>(DI->getArg(i));
+ DagInit *Arg = dyn_cast<DagInit>(DI->getArg(i));
if (Arg && hasNullFragReference(Arg))
return true;
}
/// the null_frag operator.
static bool hasNullFragReference(ListInit *LI) {
for (unsigned i = 0, e = LI->getSize(); i != e; ++i) {
- DagInit *DI = dynamic_cast<DagInit*>(LI->getElement(i));
+ DagInit *DI = dyn_cast<DagInit>(LI->getElement(i));
assert(DI && "non-dag in an instruction Pattern list?!");
if (hasNullFragReference(DI))
return true;
getInstructionsInTree(Tree->getChild(i), Instrs);
}
-/// ParseInstructions - Parse all of the instructions, inlining and resolving
-/// any fragments involved. This populates the Instructions list with fully
-/// resolved instructions.
-void CodeGenDAGPatterns::ParseInstructions() {
- std::vector<Record*> Instrs = Records.getAllDerivedDefinitions("Instruction");
-
- for (unsigned i = 0, e = Instrs.size(); i != e; ++i) {
- ListInit *LI = 0;
-
- if (dynamic_cast<ListInit*>(Instrs[i]->getValueInit("Pattern")))
- LI = Instrs[i]->getValueAsListInit("Pattern");
+/// Check the class of a pattern leaf node against the instruction operand it
+/// represents.
+static bool checkOperandClass(CGIOperandList::OperandInfo &OI,
+ Record *Leaf) {
+ if (OI.Rec == Leaf)
+ return true;
- // If there is no pattern, only collect minimal information about the
- // instruction for its operand list. We have to assume that there is one
- // result, as we have no detailed info. A pattern which references the
- // null_frag operator is as-if no pattern were specified. Normally this
- // is from a multiclass expansion w/ a SDPatternOperator passed in as
- // null_frag.
- if (!LI || LI->getSize() == 0 || hasNullFragReference(LI)) {
- std::vector<Record*> Results;
- std::vector<Record*> Operands;
+ // Allow direct value types to be used in instruction set patterns.
+ // The type will be checked later.
+ if (Leaf->isSubClassOf("ValueType"))
+ return true;
- CodeGenInstruction &InstInfo = Target.getInstruction(Instrs[i]);
+ // Patterns can also be ComplexPattern instances.
+ if (Leaf->isSubClassOf("ComplexPattern"))
+ return true;
- if (InstInfo.Operands.size() != 0) {
- if (InstInfo.Operands.NumDefs == 0) {
- // These produce no results
- for (unsigned j = 0, e = InstInfo.Operands.size(); j < e; ++j)
- Operands.push_back(InstInfo.Operands[j].Rec);
- } else {
- // Assume the first operand is the result.
- Results.push_back(InstInfo.Operands[0].Rec);
+ return false;
+}
- // The rest are inputs.
- for (unsigned j = 1, e = InstInfo.Operands.size(); j < e; ++j)
- Operands.push_back(InstInfo.Operands[j].Rec);
- }
- }
+const DAGInstruction &CodeGenDAGPatterns::parseInstructionPattern(
+ CodeGenInstruction &CGI, ListInit *Pat, DAGInstMap &DAGInsts) {
- // Create and insert the instruction.
- std::vector<Record*> ImpResults;
- Instructions.insert(std::make_pair(Instrs[i],
- DAGInstruction(0, Results, Operands, ImpResults)));
- continue; // no pattern.
- }
+ assert(!DAGInsts.count(CGI.TheDef) && "Instruction already parsed!");
// Parse the instruction.
- TreePattern *I = new TreePattern(Instrs[i], LI, true, *this);
+ TreePattern *I = new TreePattern(CGI.TheDef, Pat, true, *this);
// Inline pattern fragments into it.
I->InlinePatternFragments();
// Parse the operands list from the (ops) list, validating it.
assert(I->getArgList().empty() && "Args list should still be empty here!");
- CodeGenInstruction &CGI = Target.getInstruction(Instrs[i]);
// Check that all of the results occur first in the list.
std::vector<Record*> Results;
- TreePatternNode *Res0Node = 0;
+ TreePatternNode *Res0Node = nullptr;
for (unsigned i = 0; i != NumResults; ++i) {
if (i == CGI.Operands.size())
I->error("'" + InstResults.begin()->first +
// Check that it exists in InstResults.
TreePatternNode *RNode = InstResults[OpName];
- if (RNode == 0)
+ if (!RNode)
I->error("Operand $" + OpName + " does not exist in operand list!");
if (i == 0)
Res0Node = RNode;
- Record *R = dynamic_cast<DefInit*>(RNode->getLeafValue())->getDef();
- if (R == 0)
+ Record *R = cast<DefInit>(RNode->getLeafValue())->getDef();
+ if (!R)
I->error("Operand $" + OpName + " should be a set destination: all "
"outputs must occur before inputs in operand list!");
- if (CGI.Operands[i].Rec != R)
+ if (!checkOperandClass(CGI.Operands[i], R))
I->error("Operand $" + OpName + " class mismatch!");
// Remember the return type.
TreePatternNode *InVal = InstInputsCheck[OpName];
InstInputsCheck.erase(OpName); // It occurred, remove from map.
- if (InVal->isLeaf() &&
- dynamic_cast<DefInit*>(InVal->getLeafValue())) {
+ if (InVal->isLeaf() && isa<DefInit>(InVal->getLeafValue())) {
Record *InRec = static_cast<DefInit*>(InVal->getLeafValue())->getDef();
- if (Op.Rec != InRec && !InRec->isSubClassOf("ComplexPattern"))
+ if (!checkOperandClass(Op, InRec))
I->error("Operand $" + OpName + "'s register class disagrees"
" between the operand and pattern");
}
// Promote the xform function to be an explicit node if set.
if (Record *Xform = OpNode->getTransformFn()) {
- OpNode->setTransformFn(0);
+ OpNode->setTransformFn(nullptr);
std::vector<TreePatternNode*> Children;
Children.push_back(OpNode);
OpNode = new TreePatternNode(Xform, Children, OpNode->getNumTypes());
// Create and insert the instruction.
// FIXME: InstImpResults should not be part of DAGInstruction.
DAGInstruction TheInst(I, Results, Operands, InstImpResults);
- Instructions.insert(std::make_pair(I->getRecord(), TheInst));
+ DAGInsts.insert(std::make_pair(I->getRecord(), TheInst));
// Use a temporary tree pattern to infer all types and make sure that the
// constructed result is correct. This depends on the instruction already
- // being inserted into the Instructions map.
+ // being inserted into the DAGInsts map.
TreePattern Temp(I->getRecord(), ResultPattern, false, *this);
Temp.InferAllTypes(&I->getNamedNodesMap());
- DAGInstruction &TheInsertedInst = Instructions.find(I->getRecord())->second;
+ DAGInstruction &TheInsertedInst = DAGInsts.find(I->getRecord())->second;
TheInsertedInst.setResultPattern(Temp.getOnlyTree());
- DEBUG(I->dump());
+ return TheInsertedInst;
+ }
+
+/// ParseInstructions - Parse all of the instructions, inlining and resolving
+/// any fragments involved. This populates the Instructions list with fully
+/// resolved instructions.
+void CodeGenDAGPatterns::ParseInstructions() {
+ std::vector<Record*> Instrs = Records.getAllDerivedDefinitions("Instruction");
+
+ for (unsigned i = 0, e = Instrs.size(); i != e; ++i) {
+ ListInit *LI = nullptr;
+
+ if (isa<ListInit>(Instrs[i]->getValueInit("Pattern")))
+ LI = Instrs[i]->getValueAsListInit("Pattern");
+
+ // If there is no pattern, only collect minimal information about the
+ // instruction for its operand list. We have to assume that there is one
+ // result, as we have no detailed info. A pattern which references the
+ // null_frag operator is as-if no pattern were specified. Normally this
+ // is from a multiclass expansion w/ a SDPatternOperator passed in as
+ // null_frag.
+ if (!LI || LI->getSize() == 0 || hasNullFragReference(LI)) {
+ std::vector<Record*> Results;
+ std::vector<Record*> Operands;
+
+ CodeGenInstruction &InstInfo = Target.getInstruction(Instrs[i]);
+
+ if (InstInfo.Operands.size() != 0) {
+ if (InstInfo.Operands.NumDefs == 0) {
+ // These produce no results
+ for (unsigned j = 0, e = InstInfo.Operands.size(); j < e; ++j)
+ Operands.push_back(InstInfo.Operands[j].Rec);
+ } else {
+ // Assume the first operand is the result.
+ Results.push_back(InstInfo.Operands[0].Rec);
+
+ // The rest are inputs.
+ for (unsigned j = 1, e = InstInfo.Operands.size(); j < e; ++j)
+ Operands.push_back(InstInfo.Operands[j].Rec);
+ }
+ }
+
+ // Create and insert the instruction.
+ std::vector<Record*> ImpResults;
+ Instructions.insert(std::make_pair(Instrs[i],
+ DAGInstruction(nullptr, Results, Operands, ImpResults)));
+ continue; // no pattern.
+ }
+
+ CodeGenInstruction &CGI = Target.getInstruction(Instrs[i]);
+ const DAGInstruction &DI = parseInstructionPattern(CGI, LI, Instructions);
+
+ (void)DI;
+ DEBUG(DI.getPattern()->dump());
}
// If we can, convert the instructions to be patterns that are matched!
- for (std::map<Record*, DAGInstruction, RecordPtrCmp>::iterator II =
+ for (std::map<Record*, DAGInstruction, LessRecordByID>::iterator II =
Instructions.begin(),
E = Instructions.end(); II != E; ++II) {
DAGInstruction &TheInst = II->second;
- const TreePattern *I = TheInst.getPattern();
- if (I == 0) continue; // No pattern.
+ TreePattern *I = TheInst.getPattern();
+ if (!I) continue; // No pattern.
// FIXME: Assume only the first tree is the pattern. The others are clobber
// nodes.
static void FindNames(const TreePatternNode *P,
std::map<std::string, NameRecord> &Names,
- const TreePattern *PatternTop) {
+ TreePattern *PatternTop) {
if (!P->getName().empty()) {
NameRecord &Rec = Names[P->getName()];
// If this is the first instance of the name, remember the node.
}
}
-void CodeGenDAGPatterns::AddPatternToMatch(const TreePattern *Pattern,
+void CodeGenDAGPatterns::AddPatternToMatch(TreePattern *Pattern,
const PatternToMatch &PTM) {
// Do some sanity checking on the pattern we're about to match.
std::string Reason;
- if (!PTM.getSrcPattern()->canPatternMatch(Reason, *this))
- Pattern->error("Pattern can never match: " + Reason);
+ if (!PTM.getSrcPattern()->canPatternMatch(Reason, *this)) {
+ PrintWarning(Pattern->getRecord()->getLoc(),
+ Twine("Pattern can never match: ") + Reason);
+ return;
+ }
// If the source pattern's root is a complex pattern, that complex pattern
// must specify the nodes it can potentially match.
// they don't exist in the input pattern.
for (std::map<std::string, NameRecord>::iterator
I = DstNames.begin(), E = DstNames.end(); I != E; ++I) {
- if (SrcNames[I->first].first == 0)
+ if (SrcNames[I->first].first == nullptr)
Pattern->error("Pattern has input without matching name in output: $" +
I->first);
}
// name isn't used in the dest, and isn't used to tie two values together.
for (std::map<std::string, NameRecord>::iterator
I = SrcNames.begin(), E = SrcNames.end(); I != E; ++I)
- if (DstNames[I->first].first == 0 && SrcNames[I->first].second == 1)
+ if (DstNames[I->first].first == nullptr && SrcNames[I->first].second == 1)
Pattern->error("Pattern has dead named input: $" + I->first);
PatternsToMatch.push_back(PTM);
}
if (Errors)
- throw "pattern conflicts";
+ PrintFatalError("pattern conflicts");
// Revisit instructions with undefined flags and no pattern.
if (Target.guessInstructionProperties()) {
}
}
if (Errors)
- throw "Errors in DAG patterns";
+ PrintFatalError("Errors in DAG patterns");
}
/// Given a pattern result with an unresolved type, see if we can find one
for (unsigned ii = 0, ee = DstPattern->getNumChildren(); ii != ee; ++ii) {
TreePatternNode *OpNode = DstPattern->getChild(ii);
if (Record *Xform = OpNode->getTransformFn()) {
- OpNode->setTransformFn(0);
+ OpNode->setTransformFn(nullptr);
std::vector<TreePatternNode*> Children;
Children.push_back(OpNode);
OpNode = new TreePatternNode(Xform, Children, OpNode->getNumTypes());
std::vector<TreePatternNode*> &OutVariants,
CodeGenDAGPatterns &CDP,
const MultipleUseVarSet &DepVars) {
- // We cannot permute leaves.
- if (N->isLeaf()) {
+ // We cannot permute leaves or ComplexPattern uses.
+ if (N->isLeaf() || N->getOperator()->isSubClassOf("ComplexPattern")) {
OutVariants.push_back(N);
return;
}
for (unsigned i = 0, e = N->getNumChildren(); i != e; ++i) {
TreePatternNode *Child = N->getChild(i);
if (Child->isLeaf())
- if (DefInit *DI = dynamic_cast<DefInit*>(Child->getLeafValue())) {
+ if (DefInit *DI = dyn_cast<DefInit>(Child->getLeafValue())) {
Record *RR = DI->getDef();
if (RR->isSubClassOf("Register"))
continue;
projects / oota-llvm.git / blobdiff