-//===----------------- LLVMContextImpl.h - Implementation ------*- C++ -*--===//
+//===-- LLVMContextImpl.h - The LLVMContextImpl opaque class --------------===//
//
// The LLVM Compiler Infrastructure
//
#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/Mutex.h"
-#include "llvm/System/RWMutex.h"
#include "llvm/Assembly/Writer.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;
- 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<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;
- // Lock used for guarding access to the leak detector
- sys::SmartMutex<true> LLVMObjectsLock;
LeakDetectorImpl<Value> LLVMObjects;
- // Lock used for guarding access to the type maps.
- sys::SmartMutex<true> TypeMapLock;
-
- // Recursive lock used for guarding access to AbstractTypeUsers.
- // NOTE: The true template parameter means this will no-op when we're not in
- // multithreaded mode.
- sys::SmartMutex<true> AbstractTypeUsersLock;
+ // 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
TypeMap<FunctionValType, FunctionType> FunctionTypes;
TypeMap<StructValType, StructType> StructTypes;
TypeMap<IntegerValType, IntegerType> IntegerTypes;
+
+ // Opaque types are not structurally uniqued, so don't use TypeMap.
+ typedef SmallPtrSet<const OpaqueType*, 8> OpaqueTypesTy;
+ OpaqueTypesTy OpaqueTypes;
- 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;
-
+
/// 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;
+ MetadataContext TheMetadata;
LLVMContextImpl(LLVMContext &C) : TheTrueVal(0), TheFalseVal(0),
- VoidTy(new Type(C, Type::VoidTyID)),
- LabelTy(new Type(C, Type::LabelTyID)),
- FloatTy(new Type(C, Type::FloatTyID)),
- DoubleTy(new Type(C, Type::DoubleTyID)),
- MetadataTy(new Type(C, Type::MetadataTyID)),
- X86_FP80Ty(new Type(C, Type::X86_FP80TyID)),
- FP128Ty(new Type(C, Type::FP128TyID)),
- PPC_FP128Ty(new Type(C, Type::PPC_FP128TyID)),
- Int1Ty(new IntegerType(C, 1)),
- Int8Ty(new IntegerType(C, 8)),
- Int16Ty(new IntegerType(C, 16)),
- Int32Ty(new IntegerType(C, 32)),
- Int64Ty(new IntegerType(C, 64)) { }
-
- ~LLVMContextImpl() {
- // In principle, we should delete the member types here. However,
- // this causes destruction order issues with the types in the TypeMaps.
- // For now, just leak this, which is at least not a regression from the
- // previous behavior, though still undesirable.
-#if 0
- delete VoidTy;
- delete LabelTy;
- delete FloatTy;
- delete DoubleTy;
- delete MetadataTy;
- delete X86_FP80Ty;
- delete FP128Ty;
- delete PPC_FP128Ty;
-
- delete Int1Ty;
- delete Int8Ty;
- delete Int16Ty;
- delete Int32Ty;
- delete Int64Ty;
-#endif
+ 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) { }
+
+ ~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;
+ }
+ MDNodeSet.clear();
+ for (OpaqueTypesTy::iterator I = OpaqueTypes.begin(), E = OpaqueTypes.end();
+ I != E; ++I) {
+ (*I)->AbstractTypeUsers.clear();
+ delete *I;
+ }
}
};
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