#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/ADT/SmallString.h"
+#include "llvm/ADT/STLExtras.h"
#include "SymbolTableListTraitsImpl.h"
#include "llvm/Support/LeakDetector.h"
#include "llvm/Support/ValueHandle.h"
// MDString implementation.
//
-MDString::MDString(LLVMContext &C, StringRef S)
- : Value(Type::getMetadataTy(C), Value::MDStringVal), Str(S) {}
+void MDString::anchor() { }
+
+MDString::MDString(LLVMContext &C)
+ : Value(Type::getMetadataTy(C), Value::MDStringVal) {}
MDString *MDString::get(LLVMContext &Context, StringRef Str) {
LLVMContextImpl *pImpl = Context.pImpl;
- StringMapEntry<MDString *> &Entry =
+ StringMapEntry<Value*> &Entry =
pImpl->MDStringCache.GetOrCreateValue(Str);
- MDString *&S = Entry.getValue();
- if (!S) S = new MDString(Context, Entry.getKey());
- return S;
+ Value *&S = Entry.getValue();
+ if (!S) S = new MDString(Context);
+ S->setValueName(&Entry);
+ return cast<MDString>(S);
}
//===----------------------------------------------------------------------===//
// Use CallbackVH to hold MDNode operands.
namespace llvm {
class MDNodeOperand : public CallbackVH {
- MDNode *Parent;
+ MDNode *getParent() {
+ MDNodeOperand *Cur = this;
+
+ while (Cur->getValPtrInt() != 1)
+ --Cur;
+
+ assert(Cur->getValPtrInt() == 1 &&
+ "Couldn't find the beginning of the operand list!");
+ return reinterpret_cast<MDNode*>(Cur) - 1;
+ }
+
public:
- MDNodeOperand(Value *V, MDNode *P) : CallbackVH(V), Parent(P) {}
+ MDNodeOperand(Value *V) : CallbackVH(V) {}
~MDNodeOperand() {}
void set(Value *V) {
- setValPtr(V);
+ unsigned IsFirst = this->getValPtrInt();
+ this->setValPtr(V);
+ this->setAsFirstOperand(IsFirst);
}
+ /// setAsFirstOperand - Accessor method to mark the operand as the first in
+ /// the list.
+ void setAsFirstOperand(unsigned V) { this->setValPtrInt(V); }
+
virtual void deleted();
virtual void allUsesReplacedWith(Value *NV);
};
void MDNodeOperand::deleted() {
- Parent->replaceOperand(this, 0);
+ getParent()->replaceOperand(this, 0);
}
void MDNodeOperand::allUsesReplacedWith(Value *NV) {
- Parent->replaceOperand(this, NV);
+ getParent()->replaceOperand(this, NV);
}
-
-
//===----------------------------------------------------------------------===//
// MDNode implementation.
//
static MDNodeOperand *getOperandPtr(MDNode *N, unsigned Op) {
// Use <= instead of < to permit a one-past-the-end address.
assert(Op <= N->getNumOperands() && "Invalid operand number");
- return reinterpret_cast<MDNodeOperand*>(N+1)+Op;
+ return reinterpret_cast<MDNodeOperand*>(N + 1) + Op;
+}
+
+void MDNode::replaceOperandWith(unsigned i, Value *Val) {
+ MDNodeOperand *Op = getOperandPtr(this, i);
+ replaceOperand(Op, Val);
}
-MDNode::MDNode(LLVMContext &C, Value *const *Vals, unsigned NumVals,
- bool isFunctionLocal)
+MDNode::MDNode(LLVMContext &C, ArrayRef<Value*> Vals, bool isFunctionLocal)
: Value(Type::getMetadataTy(C), Value::MDNodeVal) {
- NumOperands = NumVals;
+ NumOperands = Vals.size();
if (isFunctionLocal)
setValueSubclassData(getSubclassDataFromValue() | FunctionLocalBit);
// Initialize the operand list, which is co-allocated on the end of the node.
+ unsigned i = 0;
for (MDNodeOperand *Op = getOperandPtr(this, 0), *E = Op+NumOperands;
- Op != E; ++Op, ++Vals)
- new (Op) MDNodeOperand(*Vals, this);
-}
+ Op != E; ++Op, ++i) {
+ new (Op) MDNodeOperand(Vals[i]);
+ // Mark the first MDNodeOperand as being the first in the list of operands.
+ if (i == 0)
+ Op->setAsFirstOperand(1);
+ }
+}
/// ~MDNode - Destroy MDNode.
MDNode::~MDNode() {
const Function *MDNode::getFunction() const {
#ifndef NDEBUG
return assertLocalFunction(this);
-#endif
+#else
if (!isFunctionLocal()) return NULL;
for (unsigned i = 0, e = getNumOperands(); i != e; ++i)
if (const Function *F = getFunctionForValue(getOperand(i)))
return F;
return NULL;
+#endif
}
// destroy - Delete this node. Only when there are no uses.
(isa<MDNode>(V) && cast<MDNode>(V)->isFunctionLocal());
}
-MDNode *MDNode::getMDNode(LLVMContext &Context, Value *const *Vals,
- unsigned NumVals, FunctionLocalness FL,
- bool Insert) {
+MDNode *MDNode::getMDNode(LLVMContext &Context, ArrayRef<Value*> Vals,
+ FunctionLocalness FL, bool Insert) {
LLVMContextImpl *pImpl = Context.pImpl;
// Add all the operand pointers. Note that we don't have to add the
// Note that if the operands are later nulled out, the node will be
// removed from the uniquing map.
FoldingSetNodeID ID;
- for (unsigned i = 0; i != NumVals; ++i)
+ for (unsigned i = 0; i != Vals.size(); ++i)
ID.AddPointer(Vals[i]);
void *InsertPoint;
- MDNode *N = NULL;
-
- if ((N = pImpl->MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint)))
+ MDNode *N = pImpl->MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint);
+
+ if (N || !Insert)
return N;
-
+
bool isFunctionLocal = false;
switch (FL) {
case FL_Unknown:
- for (unsigned i = 0; i != NumVals; ++i) {
+ for (unsigned i = 0; i != Vals.size(); ++i) {
Value *V = Vals[i];
if (!V) continue;
if (isFunctionLocalValue(V)) {
}
// Coallocate space for the node and Operands together, then placement new.
- void *Ptr = malloc(sizeof(MDNode)+NumVals*sizeof(MDNodeOperand));
- N = new (Ptr) MDNode(Context, Vals, NumVals, isFunctionLocal);
+ void *Ptr = malloc(sizeof(MDNode) + Vals.size() * sizeof(MDNodeOperand));
+ N = new (Ptr) MDNode(Context, Vals, isFunctionLocal);
+
+ // Cache the operand hash.
+ N->Hash = ID.ComputeHash();
// InsertPoint will have been set by the FindNodeOrInsertPos call.
pImpl->MDNodeSet.InsertNode(N, InsertPoint);
return N;
}
-MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals) {
- return getMDNode(Context, Vals, NumVals, FL_Unknown);
+MDNode *MDNode::get(LLVMContext &Context, ArrayRef<Value*> Vals) {
+ return getMDNode(Context, Vals, FL_Unknown);
}
-MDNode *MDNode::getWhenValsUnresolved(LLVMContext &Context, Value *const *Vals,
- unsigned NumVals, bool isFunctionLocal) {
- return getMDNode(Context, Vals, NumVals, isFunctionLocal ? FL_Yes : FL_No);
+MDNode *MDNode::getWhenValsUnresolved(LLVMContext &Context,
+ ArrayRef<Value*> Vals,
+ bool isFunctionLocal) {
+ return getMDNode(Context, Vals, isFunctionLocal ? FL_Yes : FL_No);
}
-MDNode *MDNode::getIfExists(LLVMContext &Context, Value *const *Vals,
- unsigned NumVals) {
- return getMDNode(Context, Vals, NumVals, FL_Unknown, false);
+MDNode *MDNode::getIfExists(LLVMContext &Context, ArrayRef<Value*> Vals) {
+ return getMDNode(Context, Vals, FL_Unknown, false);
}
-MDNode *MDNode::getTemporary(LLVMContext &Context, Value *const *Vals,
- unsigned NumVals) {
- MDNode *N = (MDNode *)malloc(sizeof(MDNode)+NumVals*sizeof(MDNodeOperand));
- N = new (N) MDNode(Context, Vals, NumVals, FL_No);
+MDNode *MDNode::getTemporary(LLVMContext &Context, ArrayRef<Value*> Vals) {
+ MDNode *N =
+ (MDNode *)malloc(sizeof(MDNode) + Vals.size() * sizeof(MDNodeOperand));
+ N = new (N) MDNode(Context, Vals, FL_No);
N->setValueSubclassData(N->getSubclassDataFromValue() |
NotUniquedBit);
LeakDetector::addGarbageObject(N);
return;
}
+ // Cache the operand hash.
+ Hash = ID.ComputeHash();
// InsertPoint will have been set by the FindNodeOrInsertPos call.
pImpl->MDNodeSet.InsertNode(this, InsertPoint);
// Instruction Metadata method implementations.
//
-void Instruction::setMetadata(const char *Kind, MDNode *Node) {
+void Instruction::setMetadata(StringRef Kind, MDNode *Node) {
if (Node == 0 && !hasMetadata()) return;
setMetadata(getContext().getMDKindID(Kind), Node);
}
-MDNode *Instruction::getMetadataImpl(const char *Kind) const {
+MDNode *Instruction::getMetadataImpl(StringRef Kind) const {
return getMetadataImpl(getContext().getMDKindID(Kind));
}
}
// Otherwise, we're removing metadata from an instruction.
- assert(hasMetadataHashEntry() &&
- getContext().pImpl->MetadataStore.count(this) &&
+ assert((hasMetadataHashEntry() ==
+ getContext().pImpl->MetadataStore.count(this)) &&
"HasMetadata bit out of date!");
+ if (!hasMetadataHashEntry())
+ return; // Nothing to remove!
LLVMContextImpl::MDMapTy &Info = getContext().pImpl->MetadataStore[this];
// Common case is removing the only entry.
getContext().pImpl->MetadataStore.count(this) &&
"Shouldn't have called this");
const LLVMContextImpl::MDMapTy &Info =
- getContext().pImpl->MetadataStore.find(this)->second;
+ getContext().pImpl->MetadataStore.find(this)->second;
assert(!Info.empty() && "Shouldn't have called this");
-
Result.append(Info.begin(), Info.end());
-
+
// Sort the resulting array so it is stable.
if (Result.size() > 1)
array_pod_sort(Result.begin(), Result.end());
}
-
/// clearMetadataHashEntries - Clear all hashtable-based metadata from
/// this instruction.
void Instruction::clearMetadataHashEntries() {
projects / oota-llvm.git / blobdiff