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Move the metadata constructors back to 2.5 syntax.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77733 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2009-07-31 21:35:40 +00:00
parent feba7562ec
commit 647e3016de
8 changed files with 60 additions and 94 deletions
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13
include/llvm/LLVMContext.h
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@ -61,20 +61,11 @@ class LLVMContext {
friend class ConstantArray;
friend class ConstantVector;
friend class ConstantAggregateZero;
friend class MDNode;
friend class MDString;
public:
LLVMContext();
~LLVMContext();
// MDNode accessors
MDNode* getMDNode(Value* const* Vals, unsigned NumVals);
// MDString accessors
MDString* getMDString(const StringRef &Str);
// Methods for erasing constants
void erase(MDString *M);
void erase(MDNode *M);
};
/// FOR BACKWARDS COMPATIBILITY - Returns a global context.

9
include/llvm/Metadata.h
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@ -27,6 +27,7 @@
namespace llvm {
class Constant;
class LLVMContext;
//===----------------------------------------------------------------------===//
// MetadataBase - A base class for MDNode, MDString and NamedMDNode.
@ -64,13 +65,14 @@ public:
class MDString : public MetadataBase {
MDString(const MDString &); // DO NOT IMPLEMENT
StringRef Str;
friend class LLVMContextImpl;
protected:
explicit MDString(const char *begin, unsigned l)
: MetadataBase(Type::MetadataTy, Value::MDStringVal), Str(begin, l) {}
public:
static MDString *get(LLVMContext &Context, const StringRef &Str);
StringRef getString() const { return Str; }
unsigned length() const { return Str.size(); }
@ -97,14 +99,15 @@ public:
class MDNode : public MetadataBase, public FoldingSetNode {
MDNode(const MDNode &); // DO NOT IMPLEMENT
friend class LLVMContextImpl;
SmallVector<WeakVH, 4> Node;
typedef SmallVectorImpl<WeakVH>::iterator elem_iterator;
protected:
explicit MDNode(Value*const* Vals, unsigned NumVals);
public:
static MDNode *get(LLVMContext &Context,
Value* const* Vals, unsigned NumVals);
typedef SmallVectorImpl<WeakVH>::const_iterator const_elem_iterator;
Value *getElement(unsigned i) const {

10
lib/AsmParser/LLParser.cpp
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@ -374,7 +374,7 @@ bool LLParser::ParseNamedGlobal() {
bool LLParser::ParseMDString(MetadataBase *&MDS) {
std::string Str;
if (ParseStringConstant(Str)) return true;
MDS = Context.getMDString(Str);
MDS = MDString::get(Context, Str);
return false;
}
@ -403,8 +403,8 @@ bool LLParser::ParseMDNode(MetadataBase *&Node) {
// Create MDNode forward reference
SmallVector<Value *, 1> Elts;
std::string FwdRefName = "llvm.mdnode.fwdref." + utostr(MID);
Elts.push_back(Context.getMDString(FwdRefName));
MDNode *FwdNode = Context.getMDNode(Elts.data(), Elts.size());
Elts.push_back(MDString::get(Context, FwdRefName));
MDNode *FwdNode = MDNode::get(Context, Elts.data(), Elts.size());
ForwardRefMDNodes[MID] = std::make_pair(FwdNode, Lex.getLoc());
Node = FwdNode;
return false;
@ -474,7 +474,7 @@ bool LLParser::ParseStandaloneMetadata() {
|| ParseToken(lltok::rbrace, "expected end of metadata node"))
return true;
MDNode *Init = Context.getMDNode(Elts.data(), Elts.size());
MDNode *Init = MDNode::get(Context, Elts.data(), Elts.size());
MetadataCache[MetadataID] = Init;
std::map<unsigned, std::pair<MetadataBase *, LocTy> >::iterator
FI = ForwardRefMDNodes.find(MetadataID);
@ -1729,7 +1729,7 @@ bool LLParser::ParseValID(ValID &ID) {
ParseToken(lltok::rbrace, "expected end of metadata node"))
return true;
ID.MetadataVal = Context.getMDNode(Elts.data(), Elts.size());
ID.MetadataVal = MDNode::get(Context, Elts.data(), Elts.size());
return false;
}

5
lib/Bitcode/Reader/BitcodeReader.cpp
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@ -774,7 +774,7 @@ bool BitcodeReader::ParseMetadata() {
else
Elts.push_back(NULL);
}
Value *V = Context.getMDNode(&Elts[0], Elts.size());
Value *V = MDNode::get(Context, &Elts[0], Elts.size());
ValueList.AssignValue(V, NextValueNo++);
break;
}
@ -784,7 +784,8 @@ bool BitcodeReader::ParseMetadata() {
String.resize(MDStringLength);
for (unsigned i = 0; i != MDStringLength; ++i)
String[i] = Record[i];
Value *V = Context.getMDString(StringRef(String.data(), String.size()));
Value *V = MDString::get(Context,
StringRef(String.data(), String.size()));
ValueList.AssignValue(V, NextValueNo++);
break;
}

18
lib/VMCore/LLVMContext.cpp
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@ -31,21 +31,3 @@ LLVMContext& llvm::getGlobalContext() {
LLVMContext::LLVMContext() : pImpl(new LLVMContextImpl(*this)) { }
LLVMContext::~LLVMContext() { delete pImpl; }
// MDNode accessors
MDNode* LLVMContext::getMDNode(Value* const* Vals, unsigned NumVals) {
return pImpl->getMDNode(Vals, NumVals);
}
// MDString accessors
MDString* LLVMContext::getMDString(const StringRef &Str) {
return pImpl->getMDString(Str.data(), Str.size());
}
void LLVMContext::erase(MDString *M) {
pImpl->erase(M);
}
void LLVMContext::erase(MDNode *M) {
pImpl->erase(M);
}

49
lib/VMCore/LLVMContextImpl.cpp
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@ -20,51 +20,4 @@
using namespace llvm;
LLVMContextImpl::LLVMContextImpl(LLVMContext &C) :
Context(C), TheTrueVal(0), TheFalseVal(0) { }
MDString *LLVMContextImpl::getMDString(const char *StrBegin,
unsigned StrLength) {
sys::SmartScopedWriter<true> Writer(ConstantsLock);
StringMapEntry<MDString *> &Entry =
MDStringCache.GetOrCreateValue(StringRef(StrBegin, StrLength));
MDString *&S = Entry.getValue();
if (!S) S = new MDString(Entry.getKeyData(),
Entry.getKeyLength());
return S;
}
MDNode *LLVMContextImpl::getMDNode(Value*const* Vals, unsigned NumVals) {
FoldingSetNodeID ID;
for (unsigned i = 0; i != NumVals; ++i)
ID.AddPointer(Vals[i]);
ConstantsLock.reader_acquire();
void *InsertPoint;
MDNode *N = MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint);
ConstantsLock.reader_release();
if (!N) {
sys::SmartScopedWriter<true> Writer(ConstantsLock);
N = MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint);
if (!N) {
// InsertPoint will have been set by the FindNodeOrInsertPos call.
N = new MDNode(Vals, NumVals);
MDNodeSet.InsertNode(N, InsertPoint);
}
}
return N;
}
// *** erase methods ***
void LLVMContextImpl::erase(MDString *M) {
sys::SmartScopedWriter<true> Writer(ConstantsLock);
MDStringCache.erase(MDStringCache.find(M->getString()));
}
void LLVMContextImpl::erase(MDNode *M) {
sys::SmartScopedWriter<true> Writer(ConstantsLock);
MDNodeSet.RemoveNode(M);
}
Context(C), TheTrueVal(0), TheFalseVal(0) { }

9
lib/VMCore/LLVMContextImpl.h
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@ -462,15 +462,10 @@ class LLVMContextImpl {
friend class ConstantArray;
friend class ConstantVector;
friend class ConstantAggregateZero;
friend class MDNode;
friend class MDString;
public:
LLVMContextImpl(LLVMContext &C);
MDString *getMDString(const char *StrBegin, unsigned StrLength);
MDNode *getMDNode(Value*const* Vals, unsigned NumVals);
void erase(MDString *M);
void erase(MDNode *M);
};
}

41
lib/VMCore/Metadata.cpp
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@ -11,11 +11,28 @@
//
//===----------------------------------------------------------------------===//
#include "LLVMContextImpl.h"
#include "llvm/Metadata.h"
#include "llvm/LLVMContext.h"
#include "llvm/Module.h"
#include "SymbolTableListTraitsImpl.h"
using namespace llvm;
//===----------------------------------------------------------------------===//
//MDString implementation
//
MDString *MDString::get(LLVMContext &Context, const StringRef &Str) {
LLVMContextImpl *pImpl = Context.pImpl;
sys::SmartScopedWriter<true> Writer(pImpl->ConstantsLock);
StringMapEntry<MDString *> &Entry =
pImpl->MDStringCache.GetOrCreateValue(Str);
MDString *&S = Entry.getValue();
if (!S) S = new MDString(Entry.getKeyData(),
Entry.getKeyLength());
return S;
}
//===----------------------------------------------------------------------===//
//MDNode implementation
//
@ -30,6 +47,30 @@ void MDNode::Profile(FoldingSetNodeID &ID) const {
ID.AddPointer(*I);
}
MDNode *MDNode::get(LLVMContext &Context, Value*const* Vals, unsigned NumVals) {
LLVMContextImpl *pImpl = Context.pImpl;
FoldingSetNodeID ID;
for (unsigned i = 0; i != NumVals; ++i)
ID.AddPointer(Vals[i]);
pImpl->ConstantsLock.reader_acquire();
void *InsertPoint;
MDNode *N = pImpl->MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint);
pImpl->ConstantsLock.reader_release();
if (!N) {
sys::SmartScopedWriter<true> Writer(pImpl->ConstantsLock);
N = pImpl->MDNodeSet.FindNodeOrInsertPos(ID, InsertPoint);
if (!N) {
// InsertPoint will have been set by the FindNodeOrInsertPos call.
N = new MDNode(Vals, NumVals);
pImpl->MDNodeSet.InsertNode(N, InsertPoint);
}
}
return N;
}
//===----------------------------------------------------------------------===//
//NamedMDNode implementation
//