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Do not use SmallVector to store MDNode elements.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84784 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2009-10-21 21:25:09 +00:00
parent a55d33d96e
commit 028fa77d56
4 changed files with 25 additions and 34 deletions
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17
lib/VMCore/Metadata.cpp
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@@ -67,6 +67,9 @@ MDNode::MDNode(LLVMContext &C, Value *const *Vals, unsigned NumVals)
: MetadataBase(Type::getMetadataTy(C), Value::MDNodeVal) {
NumOperands = 0;
resizeOperands(NumVals);
NodeSize = NumVals;
Node = new ElementVH[NodeSize];
ElementVH *Ptr = Node;
for (unsigned i = 0; i != NumVals; ++i) {
// Only record metadata uses.
if (MetadataBase *MB = dyn_cast_or_null<MetadataBase>(Vals[i]))
@@ -74,13 +77,13 @@ MDNode::MDNode(LLVMContext &C, Value *const *Vals, unsigned NumVals)
else if(Vals[i] &&
Vals[i]->getType()->getTypeID() == Type::MetadataTyID)
OperandList[NumOperands++] = Vals[i];
Node.push_back(ElementVH(Vals[i], this));
*Ptr++ = ElementVH(Vals[i], this);
}
}
void MDNode::Profile(FoldingSetNodeID &ID) const {
for (const_elem_iterator I = elem_begin(), E = elem_end(); I != E; ++I)
ID.AddPointer(*I);
for (unsigned i = 0, e = getNumElements(); i != e; ++i)
ID.AddPointer(getElement(i));
}
MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals) {
@@ -109,7 +112,8 @@ MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals) {
/// dropAllReferences - Remove all uses and clear node vector.
void MDNode::dropAllReferences() {
User::dropAllReferences();
Node.clear();
delete [] Node;
Node = NULL;
}
MDNode::~MDNode() {
@@ -132,9 +136,8 @@ void MDNode::replaceElement(Value *From, Value *To) {
// From in this MDNode's element list.
SmallVector<unsigned, 4> Indexes;
unsigned Index = 0;
for (SmallVector<ElementVH, 4>::iterator I = Node.begin(),
E = Node.end(); I != E; ++I, ++Index) {
Value *V = *I;
for (unsigned i = 0, e = getNumElements(); i != e; ++i, ++Index) {
Value *V = getElement(i);
if (V && V == From)
Indexes.push_back(Index);
}