-//===----------------- LLVMContextImpl.h - Implementation ------*- C++ -*--===//
+//===-- LLVMContextImpl.h - The LLVMContextImpl opaque class --------------===//
//
// The LLVM Compiler Infrastructure
//
#ifndef LLVM_LLVMCONTEXT_IMPL_H
#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/Support/Debug.h"
-#include "llvm/Support/ErrorHandling.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 <map>
#include <vector>
-template<class ValType, class TypeClass, class ConstantClass,
- bool HasLargeKey = false /*true for arrays and structs*/ >
-class ValueMap;
-
namespace llvm {
-template<class ValType>
-struct ConstantTraits;
class ConstantInt;
class ConstantFP;
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 {
- sys::SmartRWMutex<true> ConstantsLock;
-
+public:
typedef DenseMap<DenseMapAPIntKeyInfo::KeyTy, ConstantInt*,
- DenseMapAPIntKeyInfo> IntMapTy;
+ DenseMapAPIntKeyInfo> IntMapTy;
IntMapTy IntConstants;
typedef DenseMap<DenseMapAPFloatKeyInfo::KeyTy, ConstantFP*,
- DenseMapAPFloatKeyInfo> FPMapTy;
+ DenseMapAPFloatKeyInfo> FPMapTy;
FPMapTy FPConstants;
StringMap<MDString*> MDStringCache;
FoldingSet<MDNode> MDNodeSet;
- ValueMap<char, Type, ConstantAggregateZero> *AggZeroConstants;
-
- typedef ValueMap<std::vector<Constant*>, ArrayType,
+ ConstantUniqueMap<char, Type, ConstantAggregateZero> AggZeroConstants;
+
+ typedef ConstantUniqueMap<std::vector<Constant*>, ArrayType,
ConstantArray, true /*largekey*/> ArrayConstantsTy;
- ArrayConstantsTy *ArrayConstants;
+ ArrayConstantsTy ArrayConstants;
- typedef ValueMap<std::vector<Constant*>, StructType,
- ConstantStruct, true /*largekey*/> StructConstantsTy;
- StructConstantsTy *StructConstants;
+ typedef ConstantUniqueMap<std::vector<Constant*>, StructType,
+ ConstantStruct, true /*largekey*/> StructConstantsTy;
+ StructConstantsTy StructConstants;
- LLVMContext &Context;
- ConstantInt *TheTrueVal;
- ConstantInt *TheFalseVal;
+ typedef ConstantUniqueMap<std::vector<Constant*>, VectorType,
+ ConstantVector> VectorConstantsTy;
+ VectorConstantsTy VectorConstants;
- LLVMContextImpl();
- LLVMContextImpl(const LLVMContextImpl&);
-public:
- LLVMContextImpl(LLVMContext &C);
- ~LLVMContextImpl();
-
- /// Return a ConstantInt with the specified value and an implied Type. The
- /// type is the integer type that corresponds to the bit width of the value.
- ConstantInt *getConstantInt(const APInt &V);
-
- ConstantFP *getConstantFP(const APFloat &V);
+ ConstantUniqueMap<char, PointerType, ConstantPointerNull> NullPtrConstants;
- MDString *getMDString(const char *StrBegin, unsigned StrLength);
+ ConstantUniqueMap<char, Type, UndefValue> UndefValueConstants;
- MDNode *getMDNode(Value*const* Vals, unsigned NumVals);
+ DenseMap<std::pair<Function*, BasicBlock*> , BlockAddress*> BlockAddresses;
+ ConstantUniqueMap<ExprMapKeyType, Type, ConstantExpr> ExprConstants;
- ConstantAggregateZero *getConstantAggregateZero(const Type *Ty);
-
- Constant *getConstantArray(const ArrayType *Ty,
- const std::vector<Constant*> &V);
-
- Constant *getConstantStruct(const StructType *Ty,
- const std::vector<Constant*> &V);
+ ConstantInt *TheTrueVal;
+ ConstantInt *TheFalseVal;
- ConstantInt *getTrue() {
- if (TheTrueVal)
- return TheTrueVal;
- else
- return (TheTrueVal = Context.getConstantInt(IntegerType::get(1), 1));
- }
+ 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<IntegerValType, IntegerType> IntegerTypes;
+
+ // Opaque types are not structurally uniqued, so don't use TypeMap.
+ typedef SmallPtrSet<const OpaqueType*, 8> OpaqueTypesTy;
+ OpaqueTypesTy OpaqueTypes;
- ConstantInt *getFalse() {
- if (TheFalseVal)
- return TheFalseVal;
- else
- return (TheFalseVal = Context.getConstantInt(IntegerType::get(1), 0));
+
+ /// 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(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;
+ }
}
-
- void erase(MDString *M);
- void erase(MDNode *M);
- void erase(ConstantAggregateZero *Z);
- void erase(ConstantArray *C);
- void erase(ConstantStruct *S);
-
- // RAUW helpers
-
- Constant *replaceUsesOfWithOnConstant(ConstantArray *CA, Value *From,
- Value *To, Use *U);
- Constant *replaceUsesOfWithOnConstant(ConstantStruct *CS, Value *From,
- Value *To, Use *U);
};
}
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