-//===-- llvm/SymbolTableListTraitsImpl.h - Implementation ------*- C++ -*--===//
+//===-- LLVMContextImpl.h - The LLVMContextImpl opaque class --------------===//
//
// The LLVM Compiler Infrastructure
//
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
+//
+// This file declares LLVMContextImpl, the opaque implementation
+// of LLVMContext.
+//
+//===----------------------------------------------------------------------===//
#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/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/StringMap.h"
+#include <vector>
+
namespace llvm {
+
+class ConstantInt;
+class ConstantFP;
+class MDString;
+class MDNode;
+class LLVMContext;
+class Type;
+class Value;
+
+struct DenseMapAPIntKeyInfo {
+ struct KeyTy {
+ APInt val;
+ const Type* type;
+ KeyTy(const APInt& V, const Type* Ty) : val(V), type(Ty) {}
+ KeyTy(const KeyTy& that) : val(that.val), type(that.type) {}
+ bool operator==(const KeyTy& that) const {
+ return type == that.type && this->val == that.val;
+ }
+ bool operator!=(const KeyTy& that) const {
+ return !this->operator==(that);
+ }
+ };
+ static inline KeyTy getEmptyKey() { return KeyTy(APInt(1,0), 0); }
+ static inline KeyTy getTombstoneKey() { return KeyTy(APInt(1,1), 0); }
+ static unsigned getHashValue(const KeyTy &Key) {
+ return DenseMapInfo<void*>::getHashValue(Key.type) ^
+ Key.val.getHashValue();
+ }
+ static bool isEqual(const KeyTy &LHS, const KeyTy &RHS) {
+ return LHS == RHS;
+ }
+ static bool isPod() { return false; }
+};
+
+struct DenseMapAPFloatKeyInfo {
+ struct KeyTy {
+ APFloat val;
+ KeyTy(const APFloat& V) : val(V){}
+ KeyTy(const KeyTy& that) : val(that.val) {}
+ bool operator==(const KeyTy& that) const {
+ return this->val.bitwiseIsEqual(that.val);
+ }
+ bool operator!=(const KeyTy& that) const {
+ return !this->operator==(that);
+ }
+ };
+ static inline KeyTy getEmptyKey() {
+ return KeyTy(APFloat(APFloat::Bogus,1));
+ }
+ static inline KeyTy getTombstoneKey() {
+ return KeyTy(APFloat(APFloat::Bogus,2));
+ }
+ static unsigned getHashValue(const KeyTy &Key) {
+ return Key.val.getHashValue();
+ }
+ 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;
+
+ typedef DenseMap<DenseMapAPFloatKeyInfo::KeyTy, ConstantFP*,
+ DenseMapAPFloatKeyInfo> FPMapTy;
+ FPMapTy FPConstants;
+
+ StringMap<MDString*> MDStringCache;
+
+ FoldingSet<MDNode> MDNodeSet;
+
+ ValueMap<char, Type, ConstantAggregateZero> AggZeroConstants;
+
+ typedef ValueMap<std::vector<Constant*>, ArrayType,
+ ConstantArray, true /*largekey*/> ArrayConstantsTy;
+ ArrayConstantsTy ArrayConstants;
+
+ typedef ValueMap<std::vector<Constant*>, StructType,
+ ConstantStruct, true /*largekey*/> StructConstantsTy;
+ StructConstantsTy StructConstants;
+
+ typedef ValueMap<std::vector<Constant*>, VectorType,
+ ConstantVector> VectorConstantsTy;
+ VectorConstantsTy VectorConstants;
+
+ ValueMap<char, PointerType, ConstantPointerNull> NullPtrConstants;
+
+ ValueMap<char, Type, UndefValue> UndefValueConstants;
+
+ ValueMap<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
+ // 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;
+
+ /// 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 (FoldingSet<MDNode>::iterator I = MDNodeSet.begin(),
+ E = MDNodeSet.end(); I != E; ++I)
+ I->dropAllReferences();
+ 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;
+ }
+ }
};
}
-#endif
\ No newline at end of file
+#endif
projects / oota-llvm.git / blobdiff