-//===-- LLVMContextImpl.h - The LLVMContextImpl opaque class --------------===//
+//===-- LLVMContextImpl.h - The LLVMContextImpl opaque class ----*- C++ -*-===//
//
// 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/Metadata.h"
+#include "llvm/Support/ValueHandle.h"
#include "llvm/ADT/APFloat.h"
#include "llvm/ADT/APInt.h"
+#include "llvm/ADT/ArrayRef.h"
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/FoldingSet.h"
+#include "llvm/ADT/SmallPtrSet.h"
#include "llvm/ADT/StringMap.h"
#include <vector>
class ConstantInt;
class ConstantFP;
-class MDString;
-class MDNode;
class LLVMContext;
class Type;
class Value;
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; }
};
+/// DebugRecVH - This is a CallbackVH used to keep the Scope -> index maps
+/// up to date as MDNodes mutate. This class is implemented in DebugLoc.cpp.
+class DebugRecVH : public CallbackVH {
+ /// Ctx - This is the LLVM Context being referenced.
+ LLVMContextImpl *Ctx;
+
+ /// Idx - The index into either ScopeRecordIdx or ScopeInlinedAtRecords that
+ /// this reference lives in. If this is zero, then it represents a
+ /// non-canonical entry that has no DenseMap value. This can happen due to
+ /// RAUW.
+ int Idx;
+public:
+ DebugRecVH(MDNode *n, LLVMContextImpl *ctx, int idx)
+ : CallbackVH(n), Ctx(ctx), Idx(idx) {}
+
+ MDNode *get() const {
+ return cast_or_null<MDNode>(getValPtr());
+ }
+
+ virtual void deleted();
+ virtual void allUsesReplacedWith(Value *VNew);
+};
+
class LLVMContextImpl {
public:
- sys::SmartRWMutex<true> ConstantsLock;
+ /// OwnedModules - The set of modules instantiated in this context, and which
+ /// will be automatically deleted if this context is deleted.
+ SmallPtrSet<Module*, 4> OwnedModules;
+
+ LLVMContext::InlineAsmDiagHandlerTy InlineAsmDiagHandler;
+ void *InlineAsmDiagContext;
+
typedef DenseMap<DenseMapAPIntKeyInfo::KeyTy, ConstantInt*,
DenseMapAPIntKeyInfo> IntMapTy;
IntMapTy IntConstants;
StringMap<MDString*> MDStringCache;
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;
- ValueMap<char, Type, ConstantAggregateZero> AggZeroConstants;
+ ConstantUniqueMap<char, char, Type, ConstantAggregateZero> AggZeroConstants;
- typedef ValueMap<std::vector<Constant*>, ArrayType,
- ConstantArray, true /*largekey*/> ArrayConstantsTy;
+ typedef ConstantUniqueMap<std::vector<Constant*>, ArrayRef<Constant*>,
+ ArrayType, ConstantArray, true /*largekey*/> ArrayConstantsTy;
ArrayConstantsTy ArrayConstants;
- typedef ValueMap<std::vector<Constant*>, StructType,
- ConstantStruct, true /*largekey*/> StructConstantsTy;
+ typedef ConstantUniqueMap<std::vector<Constant*>, ArrayRef<Constant*>,
+ StructType, ConstantStruct, true /*largekey*/> StructConstantsTy;
StructConstantsTy StructConstants;
- typedef ValueMap<std::vector<Constant*>, VectorType,
- ConstantVector> VectorConstantsTy;
+ typedef ConstantUniqueMap<std::vector<Constant*>, ArrayRef<Constant*>,
+ VectorType, ConstantVector> VectorConstantsTy;
VectorConstantsTy VectorConstants;
- ValueMap<char, PointerType, ConstantPointerNull> NullPtrConstants;
-
- ValueMap<char, Type, UndefValue> UndefValueConstants;
+ ConstantUniqueMap<char, char, PointerType, ConstantPointerNull>
+ NullPtrConstants;
+ ConstantUniqueMap<char, char, Type, UndefValue> UndefValueConstants;
- ValueMap<ExprMapKeyType, Type, ConstantExpr> ExprConstants;
+ DenseMap<std::pair<Function*, BasicBlock*> , BlockAddress*> BlockAddresses;
+ ConstantUniqueMap<ExprMapKeyType, const ExprMapKeyType&, Type, ConstantExpr>
+ ExprConstants;
+
+ ConstantUniqueMap<InlineAsmKeyType, const InlineAsmKeyType&, PointerType,
+ InlineAsm> InlineAsms;
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 X86_FP80Ty;
const Type FP128Ty;
const Type PPC_FP128Ty;
+ const Type X86_MMXTy;
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<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;
+
+ /// 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;
- Metadata 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;
- }
- }
+ /// CustomMDKindNames - Map to hold the metadata string to ID mapping.
+ StringMap<unsigned> CustomMDKindNames;
+
+ 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;
+
+ /// ScopeRecordIdx - This is the index in ScopeRecords for an MDNode scope
+ /// entry with no "inlined at" element.
+ DenseMap<MDNode*, int> ScopeRecordIdx;
+
+ /// ScopeRecords - These are the actual mdnodes (in a value handle) for an
+ /// index. The ValueHandle ensures that ScopeRecordIdx stays up to date if
+ /// the MDNode is RAUW'd.
+ std::vector<DebugRecVH> ScopeRecords;
+
+ /// ScopeInlinedAtIdx - This is the index in ScopeInlinedAtRecords for an
+ /// scope/inlined-at pair.
+ DenseMap<std::pair<MDNode*, MDNode*>, int> ScopeInlinedAtIdx;
+
+ /// ScopeInlinedAtRecords - These are the actual mdnodes (in value handles)
+ /// for an index. The ValueHandle ensures that ScopeINlinedAtIdx stays up
+ /// to date.
+ std::vector<std::pair<DebugRecVH, DebugRecVH> > ScopeInlinedAtRecords;
+
+ int getOrAddScopeRecordIdxEntry(MDNode *N, int ExistingIdx);
+ int getOrAddScopeInlinedAtIdxEntry(MDNode *Scope, MDNode *IA,int ExistingIdx);
+
+ LLVMContextImpl(LLVMContext &C);
+ ~LLVMContextImpl();
};
}
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