-//===----------------- LLVMContextImpl.h - Implementation ------*- C++ -*--===//
+//===-- LLVMContextImpl.h - The LLVMContextImpl opaque class --------------===//
//
// The LLVM Compiler Infrastructure
//
#define LLVM_LLVMCONTEXT_IMPL_H
#include "ConstantsContext.h"
+#include "LeaksContext.h"
#include "TypesContext.h"
#include "llvm/LLVMContext.h"
+#include "llvm/Metadata.h"
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
-#include "llvm/System/RWMutex.h"
+#include "llvm/Assembly/Writer.h"
+#include "llvm/Support/ValueHandle.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringMap.h"
#include <vector>
static bool isEqual(const KeyTy &LHS, const KeyTy &RHS) {
return LHS == RHS;
}
- static bool isPod() { return false; }
};
struct DenseMapAPFloatKeyInfo {
static bool isEqual(const KeyTy &LHS, const KeyTy &RHS) {
return LHS == RHS;
}
- static bool isPod() { return false; }
};
class LLVMContextImpl {
public:
- sys::SmartRWMutex<true> ConstantsLock;
-
typedef DenseMap<DenseMapAPIntKeyInfo::KeyTy, ConstantInt*,
DenseMapAPIntKeyInfo> IntMapTy;
IntMapTy IntConstants;
StringMap<MDString*> MDStringCache;
- ValueMap<char, Type, ConstantAggregateZero> AggZeroConstants;
-
- typedef ValueMap<std::vector<Value*>, Type, MDNode, true /*largekey*/>
- MDNodeMapTy;
-
- MDNodeMapTy MDNodes;
+ FoldingSet<MDNode> MDNodeSet;
+ // MDNodes may be uniqued or not uniqued. When they're not uniqued, they
+ // aren't in the MDNodeSet, but they're still shared between objects, so no
+ // one object can destroy them. This set allows us to at least destroy them
+ // on Context destruction.
+ SmallPtrSet<MDNode*, 1> NonUniquedMDNodes;
- typedef ValueMap<std::vector<Constant*>, ArrayType,
+ ConstantUniqueMap<char, Type, ConstantAggregateZero> AggZeroConstants;
+
+ typedef ConstantUniqueMap<std::vector<Constant*>, ArrayType,
ConstantArray, true /*largekey*/> ArrayConstantsTy;
ArrayConstantsTy ArrayConstants;
- typedef ValueMap<std::vector<Constant*>, StructType,
- ConstantStruct, true /*largekey*/> StructConstantsTy;
+ typedef ConstantUniqueMap<std::vector<Constant*>, StructType,
+ ConstantStruct, true /*largekey*/> StructConstantsTy;
StructConstantsTy StructConstants;
- typedef ValueMap<std::vector<Constant*>, VectorType,
- ConstantVector> VectorConstantsTy;
+ typedef ConstantUniqueMap<Constant*, UnionType, ConstantUnion>
+ UnionConstantsTy;
+ UnionConstantsTy UnionConstants;
+
+ typedef ConstantUniqueMap<std::vector<Constant*>, VectorType,
+ ConstantVector> VectorConstantsTy;
VectorConstantsTy VectorConstants;
- ValueMap<char, PointerType, ConstantPointerNull> NullPtrConstants;
+ ConstantUniqueMap<char, PointerType, ConstantPointerNull> NullPtrConstants;
- ValueMap<char, Type, UndefValue> UndefValueConstants;
+ ConstantUniqueMap<char, Type, UndefValue> UndefValueConstants;
- ValueMap<ExprMapKeyType, Type, ConstantExpr> ExprConstants;
+ DenseMap<std::pair<Function*, BasicBlock*> , BlockAddress*> BlockAddresses;
+ ConstantUniqueMap<ExprMapKeyType, Type, ConstantExpr> ExprConstants;
ConstantInt *TheTrueVal;
ConstantInt *TheFalseVal;
+ LeakDetectorImpl<Value> LLVMObjects;
+
+ // Basic type instances.
+ const Type VoidTy;
+ const Type LabelTy;
+ const Type FloatTy;
+ const Type DoubleTy;
+ const Type MetadataTy;
+ const Type X86_FP80Ty;
+ const Type FP128Ty;
+ const Type PPC_FP128Ty;
+ const IntegerType Int1Ty;
+ const IntegerType Int8Ty;
+ const IntegerType Int16Ty;
+ const IntegerType Int32Ty;
+ const IntegerType Int64Ty;
+
+ // Concrete/Abstract TypeDescriptions - We lazily calculate type descriptions
+ // for types as they are needed. Because resolution of types must invalidate
+ // all of the abstract type descriptions, we keep them in a seperate map to
+ // make this easy.
+ TypePrinting ConcreteTypeDescriptions;
+ TypePrinting AbstractTypeDescriptions;
+
TypeMap<ArrayValType, ArrayType> ArrayTypes;
TypeMap<VectorValType, VectorType> VectorTypes;
TypeMap<PointerValType, PointerType> PointerTypes;
TypeMap<FunctionValType, FunctionType> FunctionTypes;
TypeMap<StructValType, StructType> StructTypes;
+ TypeMap<UnionValType, UnionType> UnionTypes;
+ TypeMap<IntegerValType, IntegerType> IntegerTypes;
+
+ // Opaque types are not structurally uniqued, so don't use TypeMap.
+ typedef SmallPtrSet<const OpaqueType*, 8> OpaqueTypesTy;
+ OpaqueTypesTy OpaqueTypes;
+
+ /// Used as an abstract type that will never be resolved.
+ OpaqueType *const AlwaysOpaqueTy;
+
+
+ /// ValueHandles - This map keeps track of all of the value handles that are
+ /// watching a Value*. The Value::HasValueHandle bit is used to know
+ // whether or not a value has an entry in this map.
+ typedef DenseMap<Value*, ValueHandleBase*> ValueHandlesTy;
+ ValueHandlesTy ValueHandles;
+
+ /// CustomMDKindNames - Map to hold the metadata string to ID mapping.
+ StringMap<unsigned> CustomMDKindNames;
- LLVMContextImpl() : TheTrueVal(0), TheFalseVal(0) { }
+ typedef std::pair<unsigned, TrackingVH<MDNode> > MDPairTy;
+ typedef SmallVector<MDPairTy, 2> MDMapTy;
+
+ /// MetadataStore - Collection of per-instruction metadata used in this
+ /// context.
+ DenseMap<const Instruction *, MDMapTy> MetadataStore;
+
+
+ LLVMContextImpl(LLVMContext &C) : TheTrueVal(0), TheFalseVal(0),
+ VoidTy(C, Type::VoidTyID),
+ LabelTy(C, Type::LabelTyID),
+ FloatTy(C, Type::FloatTyID),
+ DoubleTy(C, Type::DoubleTyID),
+ MetadataTy(C, Type::MetadataTyID),
+ X86_FP80Ty(C, Type::X86_FP80TyID),
+ FP128Ty(C, Type::FP128TyID),
+ PPC_FP128Ty(C, Type::PPC_FP128TyID),
+ Int1Ty(C, 1),
+ Int8Ty(C, 8),
+ Int16Ty(C, 16),
+ Int32Ty(C, 32),
+ Int64Ty(C, 64),
+ AlwaysOpaqueTy(new OpaqueType(C)) {
+ // Make sure the AlwaysOpaqueTy stays alive as long as the Context.
+ AlwaysOpaqueTy->addRef();
+ OpaqueTypes.insert(AlwaysOpaqueTy);
+ }
+
+ ~LLVMContextImpl() {
+ ExprConstants.freeConstants();
+ ArrayConstants.freeConstants();
+ StructConstants.freeConstants();
+ VectorConstants.freeConstants();
+ AggZeroConstants.freeConstants();
+ NullPtrConstants.freeConstants();
+ UndefValueConstants.freeConstants();
+ for (IntMapTy::iterator I = IntConstants.begin(), E = IntConstants.end();
+ I != E; ++I) {
+ if (I->second->use_empty())
+ delete I->second;
+ }
+ for (FPMapTy::iterator I = FPConstants.begin(), E = FPConstants.end();
+ I != E; ++I) {
+ if (I->second->use_empty())
+ delete I->second;
+ }
+ AlwaysOpaqueTy->dropRef();
+ for (OpaqueTypesTy::iterator I = OpaqueTypes.begin(), E = OpaqueTypes.end();
+ I != E; ++I) {
+ (*I)->AbstractTypeUsers.clear();
+ delete *I;
+ }
+ // Destroy MDNodes. ~MDNode can move and remove nodes between the MDNodeSet
+ // and the NonUniquedMDNodes sets, so copy the values out first.
+ SmallVector<MDNode*, 8> MDNodes;
+ MDNodes.reserve(MDNodeSet.size() + NonUniquedMDNodes.size());
+ for (FoldingSetIterator<MDNode> I = MDNodeSet.begin(), E = MDNodeSet.end();
+ I != E; ++I) {
+ MDNodes.push_back(&*I);
+ }
+ MDNodes.append(NonUniquedMDNodes.begin(), NonUniquedMDNodes.end());
+ for (SmallVector<MDNode*, 8>::iterator I = MDNodes.begin(),
+ E = MDNodes.end(); I != E; ++I) {
+ (*I)->destroy();
+ }
+ assert(MDNodeSet.empty() && NonUniquedMDNodes.empty() &&
+ "Destroying all MDNodes didn't empty the Context's sets.");
+ // Destroy MDStrings.
+ for (StringMap<MDString*>::iterator I = MDStringCache.begin(),
+ E = MDStringCache.end(); I != E; ++I) {
+ delete I->second;
+ }
+ }
};
}
projects / oota-llvm.git / blobdiff