//
// The LLVM Compiler Infrastructure
//
-// This file was developed by the LLVM research group and is distributed under
-// the University of Illinois Open Source License. See LICENSE.TXT for details.
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
//
//===----------------------------------------------------------------------===//
-#include "llvm/AbstractTypeUser.h"
#include "llvm/DerivedTypes.h"
-#include "llvm/SymbolTable.h"
#include "llvm/Constants.h"
+#include "llvm/Assembly/Writer.h"
#include "llvm/ADT/DepthFirstIterator.h"
#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/SCCIterator.h"
#include "llvm/ADT/STLExtras.h"
-#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Compiler.h"
+#include "llvm/Support/Debug.h"
+#include "llvm/Support/ManagedStatic.h"
+#include "llvm/Support/MathExtras.h"
+#include "llvm/Support/raw_ostream.h"
+#include "llvm/Support/Threading.h"
+#include "llvm/System/Mutex.h"
+#include "llvm/System/RWMutex.h"
#include <algorithm>
-#include <iostream>
+#include <cstdarg>
using namespace llvm;
// DEBUG_MERGE_TYPES - Enable this #define to see how and when derived types are
// created and later destroyed, all in an effort to make sure that there is only
// a single canonical version of a type.
//
-//#define DEBUG_MERGE_TYPES 1
+// #define DEBUG_MERGE_TYPES 1
AbstractTypeUser::~AbstractTypeUser() {}
//===----------------------------------------------------------------------===//
-// Type PATypeHolder Implementation
+// Type Class Implementation
//===----------------------------------------------------------------------===//
-/// get - This implements the forwarding part of the union-find algorithm for
-/// abstract types. Before every access to the Type*, we check to see if the
-/// type we are pointing to is forwarding to a new type. If so, we drop our
-/// reference to the type.
-///
-Type* PATypeHolder::get() const {
- const Type *NewTy = Ty->getForwardedType();
- if (!NewTy) return const_cast<Type*>(Ty);
- return *const_cast<PATypeHolder*>(this) = NewTy;
-}
+// Reader/writer lock used for guarding access to the type maps.
+static ManagedStatic<sys::RWMutex> TypeMapLock;
-//===----------------------------------------------------------------------===//
-// Type Class Implementation
-//===----------------------------------------------------------------------===//
+// Recursive lock used for guarding access to AbstractTypeUsers.
+static ManagedStatic<sys::Mutex> AbstractTypeUsersLock;
// 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.
-static std::map<const Type*, std::string> ConcreteTypeDescriptions;
-static std::map<const Type*, std::string> AbstractTypeDescriptions;
+static ManagedStatic<TypePrinting> ConcreteTypeDescriptions;
+static ManagedStatic<TypePrinting> AbstractTypeDescriptions;
+
+/// Because of the way Type subclasses are allocated, this function is necessary
+/// to use the correct kind of "delete" operator to deallocate the Type object.
+/// Some type objects (FunctionTy, StructTy) allocate additional space after
+/// the space for their derived type to hold the contained types array of
+/// PATypeHandles. Using this allocation scheme means all the PATypeHandles are
+/// allocated with the type object, decreasing allocations and eliminating the
+/// need for a std::vector to be used in the Type class itself.
+/// @brief Type destruction function
+void Type::destroy() const {
+
+ // Structures and Functions allocate their contained types past the end of
+ // the type object itself. These need to be destroyed differently than the
+ // other types.
+ if (isa<FunctionType>(this) || isa<StructType>(this)) {
+ // First, make sure we destruct any PATypeHandles allocated by these
+ // subclasses. They must be manually destructed.
+ for (unsigned i = 0; i < NumContainedTys; ++i)
+ ContainedTys[i].PATypeHandle::~PATypeHandle();
+
+ // Now call the destructor for the subclass directly because we're going
+ // to delete this as an array of char.
+ if (isa<FunctionType>(this))
+ static_cast<const FunctionType*>(this)->FunctionType::~FunctionType();
+ else
+ static_cast<const StructType*>(this)->StructType::~StructType();
+
+ // Finally, remove the memory as an array deallocation of the chars it was
+ // constructed from.
+ operator delete(const_cast<Type *>(this));
+
+ return;
+ }
-Type::Type(const char *Name, TypeID id)
- : ID(id), Abstract(false), RefCount(0), ForwardType(0) {
- assert(Name && Name[0] && "Should use other ctor if no name!");
- ConcreteTypeDescriptions[this] = Name;
+ // For all the other type subclasses, there is either no contained types or
+ // just one (all Sequentials). For Sequentials, the PATypeHandle is not
+ // allocated past the type object, its included directly in the SequentialType
+ // class. This means we can safely just do "normal" delete of this object and
+ // all the destructors that need to run will be run.
+ delete this;
}
-
const Type *Type::getPrimitiveType(TypeID IDNumber) {
switch (IDNumber) {
- case VoidTyID : return VoidTy;
- case BoolTyID : return BoolTy;
- case UByteTyID : return UByteTy;
- case SByteTyID : return SByteTy;
- case UShortTyID: return UShortTy;
- case ShortTyID : return ShortTy;
- case UIntTyID : return UIntTy;
- case IntTyID : return IntTy;
- case ULongTyID : return ULongTy;
- case LongTyID : return LongTy;
- case FloatTyID : return FloatTy;
- case DoubleTyID: return DoubleTy;
- case LabelTyID : return LabelTy;
+ case VoidTyID : return VoidTy;
+ case FloatTyID : return FloatTy;
+ case DoubleTyID : return DoubleTy;
+ case X86_FP80TyID : return X86_FP80Ty;
+ case FP128TyID : return FP128Ty;
+ case PPC_FP128TyID : return PPC_FP128Ty;
+ case LabelTyID : return LabelTy;
+ case MetadataTyID : return MetadataTy;
default:
return 0;
}
}
-// isLosslesslyConvertibleTo - Return true if this type can be converted to
-// 'Ty' without any reinterpretation of bits. For example, uint to int.
-//
-bool Type::isLosslesslyConvertibleTo(const Type *Ty) const {
- if (this == Ty) return true;
-
- // Packed type conversions are always bitwise.
- if (isa<PackedType>(this) && isa<PackedType>(Ty))
- return true;
-
- if ((!isPrimitiveType() && !isa<PointerType>(this)) ||
- (!isa<PointerType>(Ty) && !Ty->isPrimitiveType())) return false;
-
- if (getTypeID() == Ty->getTypeID())
- return true; // Handles identity cast, and cast of differing pointer types
-
- // Now we know that they are two differing primitive or pointer types
- switch (getTypeID()) {
- case Type::UByteTyID: return Ty == Type::SByteTy;
- case Type::SByteTyID: return Ty == Type::UByteTy;
- case Type::UShortTyID: return Ty == Type::ShortTy;
- case Type::ShortTyID: return Ty == Type::UShortTy;
- case Type::UIntTyID: return Ty == Type::IntTy;
- case Type::IntTyID: return Ty == Type::UIntTy;
- case Type::ULongTyID: return Ty == Type::LongTy;
- case Type::LongTyID: return Ty == Type::ULongTy;
- case Type::PointerTyID: return isa<PointerType>(Ty);
- default:
- return false; // Other types have no identity values
- }
+const Type *Type::getVAArgsPromotedType() const {
+ if (ID == IntegerTyID && getSubclassData() < 32)
+ return Type::Int32Ty;
+ else if (ID == FloatTyID)
+ return Type::DoubleTy;
+ else
+ return this;
}
-/// getUnsignedVersion - If this is an integer type, return the unsigned
-/// variant of this type. For example int -> uint.
-const Type *Type::getUnsignedVersion() const {
- switch (getTypeID()) {
- default:
- assert(isInteger()&&"Type::getUnsignedVersion is only valid for integers!");
- case Type::UByteTyID:
- case Type::SByteTyID: return Type::UByteTy;
- case Type::UShortTyID:
- case Type::ShortTyID: return Type::UShortTy;
- case Type::UIntTyID:
- case Type::IntTyID: return Type::UIntTy;
- case Type::ULongTyID:
- case Type::LongTyID: return Type::ULongTy;
- }
+/// getScalarType - If this is a vector type, return the element type,
+/// otherwise return this.
+const Type *Type::getScalarType() const {
+ if (const VectorType *VTy = dyn_cast<VectorType>(this))
+ return VTy->getElementType();
+ return this;
}
-/// getSignedVersion - If this is an integer type, return the signed variant
-/// of this type. For example uint -> int.
-const Type *Type::getSignedVersion() const {
- switch (getTypeID()) {
- default:
- assert(isInteger() && "Type::getSignedVersion is only valid for integers!");
- case Type::UByteTyID:
- case Type::SByteTyID: return Type::SByteTy;
- case Type::UShortTyID:
- case Type::ShortTyID: return Type::ShortTy;
- case Type::UIntTyID:
- case Type::IntTyID: return Type::IntTy;
- case Type::ULongTyID:
- case Type::LongTyID: return Type::LongTy;
- }
+/// isIntOrIntVector - Return true if this is an integer type or a vector of
+/// integer types.
+///
+bool Type::isIntOrIntVector() const {
+ if (isInteger())
+ return true;
+ if (ID != Type::VectorTyID) return false;
+
+ return cast<VectorType>(this)->getElementType()->isInteger();
}
+/// isFPOrFPVector - Return true if this is a FP type or a vector of FP types.
+///
+bool Type::isFPOrFPVector() const {
+ if (ID == Type::FloatTyID || ID == Type::DoubleTyID ||
+ ID == Type::FP128TyID || ID == Type::X86_FP80TyID ||
+ ID == Type::PPC_FP128TyID)
+ return true;
+ if (ID != Type::VectorTyID) return false;
+
+ return cast<VectorType>(this)->getElementType()->isFloatingPoint();
+}
-// getPrimitiveSize - Return the basic size of this type if it is a primitive
-// type. These are fixed by LLVM and are not target dependent. This will
-// return zero if the type does not have a size or is not a primitive type.
+// canLosslesslyBitCastTo - Return true if this type can be converted to
+// 'Ty' without any reinterpretation of bits. For example, i8* to i32*.
//
-unsigned Type::getPrimitiveSize() const {
- switch (getTypeID()) {
- case Type::BoolTyID:
- case Type::SByteTyID:
- case Type::UByteTyID: return 1;
- case Type::UShortTyID:
- case Type::ShortTyID: return 2;
- case Type::FloatTyID:
- case Type::IntTyID:
- case Type::UIntTyID: return 4;
- case Type::LongTyID:
- case Type::ULongTyID:
- case Type::DoubleTyID: return 8;
- default: return 0;
- }
+bool Type::canLosslesslyBitCastTo(const Type *Ty) const {
+ // Identity cast means no change so return true
+ if (this == Ty)
+ return true;
+
+ // They are not convertible unless they are at least first class types
+ if (!this->isFirstClassType() || !Ty->isFirstClassType())
+ return false;
+
+ // Vector -> Vector conversions are always lossless if the two vector types
+ // have the same size, otherwise not.
+ if (const VectorType *thisPTy = dyn_cast<VectorType>(this))
+ if (const VectorType *thatPTy = dyn_cast<VectorType>(Ty))
+ return thisPTy->getBitWidth() == thatPTy->getBitWidth();
+
+ // At this point we have only various mismatches of the first class types
+ // remaining and ptr->ptr. Just select the lossless conversions. Everything
+ // else is not lossless.
+ if (isa<PointerType>(this))
+ return isa<PointerType>(Ty);
+ return false; // Other types have no identity values
}
unsigned Type::getPrimitiveSizeInBits() const {
switch (getTypeID()) {
- case Type::BoolTyID: return 1;
- case Type::SByteTyID:
- case Type::UByteTyID: return 8;
- case Type::UShortTyID:
- case Type::ShortTyID: return 16;
- case Type::FloatTyID:
- case Type::IntTyID:
- case Type::UIntTyID: return 32;
- case Type::LongTyID:
- case Type::ULongTyID:
+ case Type::FloatTyID: return 32;
case Type::DoubleTyID: return 64;
+ case Type::X86_FP80TyID: return 80;
+ case Type::FP128TyID: return 128;
+ case Type::PPC_FP128TyID: return 128;
+ case Type::IntegerTyID: return cast<IntegerType>(this)->getBitWidth();
+ case Type::VectorTyID: return cast<VectorType>(this)->getBitWidth();
default: return 0;
}
}
+/// getScalarSizeInBits - If this is a vector type, return the
+/// getPrimitiveSizeInBits value for the element type. Otherwise return the
+/// getPrimitiveSizeInBits value for this type.
+unsigned Type::getScalarSizeInBits() const {
+ return getScalarType()->getPrimitiveSizeInBits();
+}
+
+/// getFPMantissaWidth - Return the width of the mantissa of this type. This
+/// is only valid on floating point types. If the FP type does not
+/// have a stable mantissa (e.g. ppc long double), this method returns -1.
+int Type::getFPMantissaWidth() const {
+ if (const VectorType *VTy = dyn_cast<VectorType>(this))
+ return VTy->getElementType()->getFPMantissaWidth();
+ assert(isFloatingPoint() && "Not a floating point type!");
+ if (ID == FloatTyID) return 24;
+ if (ID == DoubleTyID) return 53;
+ if (ID == X86_FP80TyID) return 64;
+ if (ID == FP128TyID) return 113;
+ assert(ID == PPC_FP128TyID && "unknown fp type");
+ return -1;
+}
+
/// isSizedDerivedType - Derived types like structures and arrays are sized
/// iff all of the members of the type are sized as well. Since asking for
/// their size is relatively uncommon, move this operation out of line.
bool Type::isSizedDerivedType() const {
+ if (isa<IntegerType>(this))
+ return true;
+
if (const ArrayType *ATy = dyn_cast<ArrayType>(this))
return ATy->getElementType()->isSized();
- if (const PackedType *PTy = dyn_cast<PackedType>(this))
+ if (const VectorType *PTy = dyn_cast<VectorType>(this))
return PTy->getElementType()->isSized();
- if (!isa<StructType>(this)) return false;
+ if (!isa<StructType>(this))
+ return false;
// Okay, our struct is sized if all of the elements are...
for (subtype_iterator I = subtype_begin(), E = subtype_end(); I != E; ++I)
- if (!(*I)->isSized()) return false;
+ if (!(*I)->isSized())
+ return false;
return true;
}
}
-// getTypeDescription - This is a recursive function that walks a type hierarchy
-// calculating the description for a type.
-//
-static std::string getTypeDescription(const Type *Ty,
- std::vector<const Type *> &TypeStack) {
- if (isa<OpaqueType>(Ty)) { // Base case for the recursion
- std::map<const Type*, std::string>::iterator I =
- AbstractTypeDescriptions.lower_bound(Ty);
- if (I != AbstractTypeDescriptions.end() && I->first == Ty)
- return I->second;
- std::string Desc = "opaque";
- AbstractTypeDescriptions.insert(std::make_pair(Ty, Desc));
- return Desc;
- }
-
- if (!Ty->isAbstract()) { // Base case for the recursion
- std::map<const Type*, std::string>::iterator I =
- ConcreteTypeDescriptions.find(Ty);
- if (I != ConcreteTypeDescriptions.end()) return I->second;
- }
-
- // Check to see if the Type is already on the stack...
- unsigned Slot = 0, CurSize = TypeStack.size();
- while (Slot < CurSize && TypeStack[Slot] != Ty) ++Slot; // Scan for type
-
- // This is another base case for the recursion. In this case, we know
- // that we have looped back to a type that we have previously visited.
- // Generate the appropriate upreference to handle this.
- //
- if (Slot < CurSize)
- return "\\" + utostr(CurSize-Slot); // Here's the upreference
-
- // Recursive case: derived types...
- std::string Result;
- TypeStack.push_back(Ty); // Add us to the stack..
-
- switch (Ty->getTypeID()) {
- case Type::FunctionTyID: {
- const FunctionType *FTy = cast<FunctionType>(Ty);
- Result = getTypeDescription(FTy->getReturnType(), TypeStack) + " (";
- for (FunctionType::param_iterator I = FTy->param_begin(),
- E = FTy->param_end(); I != E; ++I) {
- if (I != FTy->param_begin())
- Result += ", ";
- Result += getTypeDescription(*I, TypeStack);
- }
- if (FTy->isVarArg()) {
- if (FTy->getNumParams()) Result += ", ";
- Result += "...";
- }
- Result += ")";
- break;
- }
- case Type::StructTyID: {
- const StructType *STy = cast<StructType>(Ty);
- Result = "{ ";
- for (StructType::element_iterator I = STy->element_begin(),
- E = STy->element_end(); I != E; ++I) {
- if (I != STy->element_begin())
- Result += ", ";
- Result += getTypeDescription(*I, TypeStack);
- }
- Result += " }";
- break;
- }
- case Type::PointerTyID: {
- const PointerType *PTy = cast<PointerType>(Ty);
- Result = getTypeDescription(PTy->getElementType(), TypeStack) + " *";
- break;
- }
- case Type::ArrayTyID: {
- const ArrayType *ATy = cast<ArrayType>(Ty);
- unsigned NumElements = ATy->getNumElements();
- Result = "[";
- Result += utostr(NumElements) + " x ";
- Result += getTypeDescription(ATy->getElementType(), TypeStack) + "]";
- break;
- }
- case Type::PackedTyID: {
- const PackedType *PTy = cast<PackedType>(Ty);
- unsigned NumElements = PTy->getNumElements();
- Result = "<";
- Result += utostr(NumElements) + " x ";
- Result += getTypeDescription(PTy->getElementType(), TypeStack) + ">";
- break;
- }
- default:
- Result = "<error>";
- assert(0 && "Unhandled type in getTypeDescription!");
- }
-
- TypeStack.pop_back(); // Remove self from stack...
-
- return Result;
-}
-
-
-
-static const std::string &getOrCreateDesc(std::map<const Type*,std::string>&Map,
- const Type *Ty) {
- std::map<const Type*, std::string>::iterator I = Map.find(Ty);
- if (I != Map.end()) return I->second;
-
- std::vector<const Type *> TypeStack;
- std::string Result = getTypeDescription(Ty, TypeStack);
- return Map[Ty] = Result;
-}
-
-
-const std::string &Type::getDescription() const {
- if (isAbstract())
- return getOrCreateDesc(AbstractTypeDescriptions, this);
- else
- return getOrCreateDesc(ConcreteTypeDescriptions, this);
+std::string Type::getDescription() const {
+ TypePrinting &Map =
+ isAbstract() ? *AbstractTypeDescriptions : *ConcreteTypeDescriptions;
+
+ std::string DescStr;
+ raw_string_ostream DescOS(DescStr);
+ Map.print(this, DescOS);
+ return DescOS.str();
}
bool StructType::indexValid(const Value *V) const {
- // Structure indexes require unsigned integer constants.
- if (V->getType() == Type::UIntTy)
- if (const ConstantUInt *CU = dyn_cast<ConstantUInt>(V))
- return CU->getValue() < ContainedTys.size();
+ // Structure indexes require 32-bit integer constants.
+ if (V->getType() == Type::Int32Ty)
+ if (const ConstantInt *CU = dyn_cast<ConstantInt>(V))
+ return indexValid(CU->getZExtValue());
return false;
}
+bool StructType::indexValid(unsigned V) const {
+ return V < NumContainedTys;
+}
+
// getTypeAtIndex - Given an index value into the type, return the type of the
// element. For a structure type, this must be a constant value...
//
const Type *StructType::getTypeAtIndex(const Value *V) const {
- assert(indexValid(V) && "Invalid structure index!");
- unsigned Idx = (unsigned)cast<ConstantUInt>(V)->getValue();
- return ContainedTys[Idx];
+ unsigned Idx = (unsigned)cast<ConstantInt>(V)->getZExtValue();
+ return getTypeAtIndex(Idx);
}
+const Type *StructType::getTypeAtIndex(unsigned Idx) const {
+ assert(indexValid(Idx) && "Invalid structure index!");
+ return ContainedTys[Idx];
+}
//===----------------------------------------------------------------------===//
-// Static 'Type' data
+// Primitive 'Type' data
//===----------------------------------------------------------------------===//
+const Type *Type::VoidTy = new Type(Type::VoidTyID);
+const Type *Type::FloatTy = new Type(Type::FloatTyID);
+const Type *Type::DoubleTy = new Type(Type::DoubleTyID);
+const Type *Type::X86_FP80Ty = new Type(Type::X86_FP80TyID);
+const Type *Type::FP128Ty = new Type(Type::FP128TyID);
+const Type *Type::PPC_FP128Ty = new Type(Type::PPC_FP128TyID);
+const Type *Type::LabelTy = new Type(Type::LabelTyID);
+const Type *Type::MetadataTy = new Type(Type::MetadataTyID);
+
namespace {
- struct VISIBILITY_HIDDEN PrimType : public Type {
- PrimType(const char *S, TypeID ID) : Type(S, ID) {}
+ struct BuiltinIntegerType : public IntegerType {
+ explicit BuiltinIntegerType(unsigned W) : IntegerType(W) {}
};
}
-
-static PrimType TheVoidTy ("void" , Type::VoidTyID);
-static PrimType TheBoolTy ("bool" , Type::BoolTyID);
-static PrimType TheSByteTy ("sbyte" , Type::SByteTyID);
-static PrimType TheUByteTy ("ubyte" , Type::UByteTyID);
-static PrimType TheShortTy ("short" , Type::ShortTyID);
-static PrimType TheUShortTy("ushort", Type::UShortTyID);
-static PrimType TheIntTy ("int" , Type::IntTyID);
-static PrimType TheUIntTy ("uint" , Type::UIntTyID);
-static PrimType TheLongTy ("long" , Type::LongTyID);
-static PrimType TheULongTy ("ulong" , Type::ULongTyID);
-static PrimType TheFloatTy ("float" , Type::FloatTyID);
-static PrimType TheDoubleTy("double", Type::DoubleTyID);
-static PrimType TheLabelTy ("label" , Type::LabelTyID);
-
-Type *Type::VoidTy = &TheVoidTy;
-Type *Type::BoolTy = &TheBoolTy;
-Type *Type::SByteTy = &TheSByteTy;
-Type *Type::UByteTy = &TheUByteTy;
-Type *Type::ShortTy = &TheShortTy;
-Type *Type::UShortTy = &TheUShortTy;
-Type *Type::IntTy = &TheIntTy;
-Type *Type::UIntTy = &TheUIntTy;
-Type *Type::LongTy = &TheLongTy;
-Type *Type::ULongTy = &TheULongTy;
-Type *Type::FloatTy = &TheFloatTy;
-Type *Type::DoubleTy = &TheDoubleTy;
-Type *Type::LabelTy = &TheLabelTy;
-
+const IntegerType *Type::Int1Ty = new BuiltinIntegerType(1);
+const IntegerType *Type::Int8Ty = new BuiltinIntegerType(8);
+const IntegerType *Type::Int16Ty = new BuiltinIntegerType(16);
+const IntegerType *Type::Int32Ty = new BuiltinIntegerType(32);
+const IntegerType *Type::Int64Ty = new BuiltinIntegerType(64);
//===----------------------------------------------------------------------===//
// Derived Type Constructors
//===----------------------------------------------------------------------===//
+/// isValidReturnType - Return true if the specified type is valid as a return
+/// type.
+bool FunctionType::isValidReturnType(const Type *RetTy) {
+ if (RetTy->isFirstClassType()) {
+ if (const PointerType *PTy = dyn_cast<PointerType>(RetTy))
+ return PTy->getElementType() != Type::MetadataTy;
+ return true;
+ }
+ if (RetTy == Type::VoidTy || RetTy == Type::MetadataTy ||
+ isa<OpaqueType>(RetTy))
+ return true;
+
+ // If this is a multiple return case, verify that each return is a first class
+ // value and that there is at least one value.
+ const StructType *SRetTy = dyn_cast<StructType>(RetTy);
+ if (SRetTy == 0 || SRetTy->getNumElements() == 0)
+ return false;
+
+ for (unsigned i = 0, e = SRetTy->getNumElements(); i != e; ++i)
+ if (!SRetTy->getElementType(i)->isFirstClassType())
+ return false;
+ return true;
+}
+
+/// isValidArgumentType - Return true if the specified type is valid as an
+/// argument type.
+bool FunctionType::isValidArgumentType(const Type *ArgTy) {
+ if ((!ArgTy->isFirstClassType() && !isa<OpaqueType>(ArgTy)) ||
+ (isa<PointerType>(ArgTy) &&
+ cast<PointerType>(ArgTy)->getElementType() == Type::MetadataTy))
+ return false;
+
+ return true;
+}
+
FunctionType::FunctionType(const Type *Result,
const std::vector<const Type*> &Params,
- bool IsVarArgs) : DerivedType(FunctionTyID),
- isVarArgs(IsVarArgs) {
- assert((Result->isFirstClassType() || Result == Type::VoidTy ||
- isa<OpaqueType>(Result)) &&
- "LLVM functions cannot return aggregates");
+ bool IsVarArgs)
+ : DerivedType(FunctionTyID), isVarArgs(IsVarArgs) {
+ ContainedTys = reinterpret_cast<PATypeHandle*>(this+1);
+ NumContainedTys = Params.size() + 1; // + 1 for result type
+ assert(isValidReturnType(Result) && "invalid return type for function");
+
+
bool isAbstract = Result->isAbstract();
- ContainedTys.reserve(Params.size()+1);
- ContainedTys.push_back(PATypeHandle(Result, this));
+ new (&ContainedTys[0]) PATypeHandle(Result, this);
for (unsigned i = 0; i != Params.size(); ++i) {
- assert((Params[i]->isFirstClassType() || isa<OpaqueType>(Params[i])) &&
- "Function arguments must be value types!");
-
- ContainedTys.push_back(PATypeHandle(Params[i], this));
+ assert(isValidArgumentType(Params[i]) &&
+ "Not a valid type for function argument!");
+ new (&ContainedTys[i+1]) PATypeHandle(Params[i], this);
isAbstract |= Params[i]->isAbstract();
}
setAbstract(isAbstract);
}
-StructType::StructType(const std::vector<const Type*> &Types)
+StructType::StructType(const std::vector<const Type*> &Types, bool isPacked)
: CompositeType(StructTyID) {
- ContainedTys.reserve(Types.size());
+ ContainedTys = reinterpret_cast<PATypeHandle*>(this + 1);
+ NumContainedTys = Types.size();
+ setSubclassData(isPacked);
bool isAbstract = false;
for (unsigned i = 0; i < Types.size(); ++i) {
- assert(Types[i] != Type::VoidTy && "Void type for structure field!!");
- ContainedTys.push_back(PATypeHandle(Types[i], this));
+ assert(Types[i] && "<null> type for structure field!");
+ assert(isValidElementType(Types[i]) &&
+ "Invalid type for structure element!");
+ new (&ContainedTys[i]) PATypeHandle(Types[i], this);
isAbstract |= Types[i]->isAbstract();
}
setAbstract(ElType->isAbstract());
}
-PackedType::PackedType(const Type *ElType, unsigned NumEl)
- : SequentialType(PackedTyID, ElType) {
+VectorType::VectorType(const Type *ElType, unsigned NumEl)
+ : SequentialType(VectorTyID, ElType) {
NumElements = NumEl;
+ setAbstract(ElType->isAbstract());
+ assert(NumEl > 0 && "NumEl of a VectorType must be greater than 0");
+ assert(isValidElementType(ElType) &&
+ "Elements of a VectorType must be a primitive type");
- assert(NumEl > 0 && "NumEl of a PackedType must be greater than 0");
- assert((ElType->isIntegral() || ElType->isFloatingPoint()) &&
- "Elements of a PackedType must be a primitive type");
}
-PointerType::PointerType(const Type *E) : SequentialType(PointerTyID, E) {
+PointerType::PointerType(const Type *E, unsigned AddrSpace)
+ : SequentialType(PointerTyID, E) {
+ AddressSpace = AddrSpace;
// Calculate whether or not this type is abstract
setAbstract(E->isAbstract());
}
OpaqueType::OpaqueType() : DerivedType(OpaqueTyID) {
setAbstract(true);
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "Derived new type: " << *this << "\n";
+ DOUT << "Derived new type: " << *this << "\n";
#endif
}
+void PATypeHolder::destroy() {
+ Ty = 0;
+}
+
// dropAllTypeUses - When this (abstract) type is resolved to be equal to
// another (more concrete) type, we must eliminate all references to other
// types, to avoid some circular reference problems.
void DerivedType::dropAllTypeUses() {
- if (!ContainedTys.empty()) {
+ if (NumContainedTys != 0) {
// The type must stay abstract. To do this, we insert a pointer to a type
// that will never get resolved, thus will always be abstract.
static Type *AlwaysOpaqueTy = OpaqueType::get();
static PATypeHolder Holder(AlwaysOpaqueTy);
ContainedTys[0] = AlwaysOpaqueTy;
- // Change the rest of the types to be intty's. It doesn't matter what we
+ // Change the rest of the types to be Int32Ty's. It doesn't matter what we
// pick so long as it doesn't point back to this type. We choose something
// concrete to avoid overhead for adding to AbstracTypeUser lists and stuff.
- for (unsigned i = 1, e = ContainedTys.size(); i != e; ++i)
- ContainedTys[i] = Type::IntTy;
+ for (unsigned i = 1, e = NumContainedTys; i != e; ++i)
+ ContainedTys[i] = Type::Int32Ty;
}
}
+namespace {
/// TypePromotionGraph and graph traits - this is designed to allow us to do
/// efficient SCC processing of type graphs. This is the exact same as
TypePromotionGraph(Type *T) : Ty(T) {}
};
+}
+
namespace llvm {
template <> struct GraphTraits<TypePromotionGraph> {
typedef Type NodeType;
if (isa<OpaqueType>(Ty))
return false; // Two unequal opaque types are never equal
- std::map<const Type*, const Type*>::iterator It = EqTypes.lower_bound(Ty);
- if (It != EqTypes.end() && It->first == Ty)
+ std::map<const Type*, const Type*>::iterator It = EqTypes.find(Ty);
+ if (It != EqTypes.end())
return It->second == Ty2; // Looping back on a type, check for equality
// Otherwise, add the mapping to the table to make sure we don't get
// algorithm is the fact that arraytypes have sizes that differentiates types,
// and that function types can be varargs or not. Consider this now.
//
- if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
- return TypesEqual(PTy->getElementType(),
- cast<PointerType>(Ty2)->getElementType(), EqTypes);
+ if (const IntegerType *ITy = dyn_cast<IntegerType>(Ty)) {
+ const IntegerType *ITy2 = cast<IntegerType>(Ty2);
+ return ITy->getBitWidth() == ITy2->getBitWidth();
+ } else if (const PointerType *PTy = dyn_cast<PointerType>(Ty)) {
+ const PointerType *PTy2 = cast<PointerType>(Ty2);
+ return PTy->getAddressSpace() == PTy2->getAddressSpace() &&
+ TypesEqual(PTy->getElementType(), PTy2->getElementType(), EqTypes);
} else if (const StructType *STy = dyn_cast<StructType>(Ty)) {
const StructType *STy2 = cast<StructType>(Ty2);
if (STy->getNumElements() != STy2->getNumElements()) return false;
+ if (STy->isPacked() != STy2->isPacked()) return false;
for (unsigned i = 0, e = STy2->getNumElements(); i != e; ++i)
if (!TypesEqual(STy->getElementType(i), STy2->getElementType(i), EqTypes))
return false;
const ArrayType *ATy2 = cast<ArrayType>(Ty2);
return ATy->getNumElements() == ATy2->getNumElements() &&
TypesEqual(ATy->getElementType(), ATy2->getElementType(), EqTypes);
- } else if (const PackedType *PTy = dyn_cast<PackedType>(Ty)) {
- const PackedType *PTy2 = cast<PackedType>(Ty2);
+ } else if (const VectorType *PTy = dyn_cast<VectorType>(Ty)) {
+ const VectorType *PTy2 = cast<VectorType>(Ty2);
return PTy->getNumElements() == PTy2->getNumElements() &&
TypesEqual(PTy->getElementType(), PTy2->getElementType(), EqTypes);
} else if (const FunctionType *FTy = dyn_cast<FunctionType>(Ty)) {
FTy->getNumParams() != FTy2->getNumParams() ||
!TypesEqual(FTy->getReturnType(), FTy2->getReturnType(), EqTypes))
return false;
- for (unsigned i = 0, e = FTy2->getNumParams(); i != e; ++i)
+ for (unsigned i = 0, e = FTy2->getNumParams(); i != e; ++i) {
if (!TypesEqual(FTy->getParamType(i), FTy2->getParamType(i), EqTypes))
return false;
+ }
return true;
} else {
assert(0 && "Unknown derived type!");
// ever reach a non-abstract type, we know that we don't need to search the
// subgraph.
static bool AbstractTypeHasCycleThrough(const Type *TargetTy, const Type *CurTy,
- std::set<const Type*> &VisitedTypes) {
+ SmallPtrSet<const Type*, 128> &VisitedTypes) {
if (TargetTy == CurTy) return true;
if (!CurTy->isAbstract()) return false;
- if (!VisitedTypes.insert(CurTy).second)
+ if (!VisitedTypes.insert(CurTy))
return false; // Already been here.
for (Type::subtype_iterator I = CurTy->subtype_begin(),
}
static bool ConcreteTypeHasCycleThrough(const Type *TargetTy, const Type *CurTy,
- std::set<const Type*> &VisitedTypes) {
+ SmallPtrSet<const Type*, 128> &VisitedTypes) {
if (TargetTy == CurTy) return true;
- if (!VisitedTypes.insert(CurTy).second)
+ if (!VisitedTypes.insert(CurTy))
return false; // Already been here.
for (Type::subtype_iterator I = CurTy->subtype_begin(),
/// TypeHasCycleThroughItself - Return true if the specified type has a cycle
/// back to itself.
static bool TypeHasCycleThroughItself(const Type *Ty) {
- std::set<const Type*> VisitedTypes;
+ SmallPtrSet<const Type*, 128> VisitedTypes;
if (Ty->isAbstract()) { // Optimized case for abstract types.
for (Type::subtype_iterator I = Ty->subtype_begin(), E = Ty->subtype_end();
switch (SubTy->getTypeID()) {
default: break;
case Type::OpaqueTyID: return 0; // Opaque -> hash = 0 no matter what.
+ case Type::IntegerTyID:
+ HashVal ^= (cast<IntegerType>(SubTy)->getBitWidth() << 3);
+ break;
case Type::FunctionTyID:
HashVal ^= cast<FunctionType>(SubTy)->getNumParams()*2 +
cast<FunctionType>(SubTy)->isVarArg();
case Type::ArrayTyID:
HashVal ^= cast<ArrayType>(SubTy)->getNumElements();
break;
- case Type::PackedTyID:
- HashVal ^= cast<PackedType>(SubTy)->getNumElements();
+ case Type::VectorTyID:
+ HashVal ^= cast<VectorType>(SubTy)->getNumElements();
break;
case Type::StructTyID:
HashVal ^= cast<StructType>(SubTy)->getNumElements();
break;
+ case Type::PointerTyID:
+ HashVal ^= cast<PointerType>(SubTy)->getAddressSpace();
+ break;
}
}
return HashVal ? HashVal : 1; // Do not return zero unless opaque subty.
std::multimap<unsigned, PATypeHolder> TypesByHash;
public:
+ ~TypeMapBase() {
+ // PATypeHolder won't destroy non-abstract types.
+ // We can't destroy them by simply iterating, because
+ // they may contain references to each-other.
+#if 0
+ for (std::multimap<unsigned, PATypeHolder>::iterator I
+ = TypesByHash.begin(), E = TypesByHash.end(); I != E; ++I) {
+ Type *Ty = const_cast<Type*>(I->second.Ty);
+ I->second.destroy();
+ // We can't invoke destroy or delete, because the type may
+ // contain references to already freed types.
+ // So we have to destruct the object the ugly way.
+ if (Ty) {
+ Ty->AbstractTypeUsers.clear();
+ static_cast<const Type*>(Ty)->Type::~Type();
+ operator delete(Ty);
+ }
+ }
+#endif
+ }
+
void RemoveFromTypesByHash(unsigned Hash, const Type *Ty) {
std::multimap<unsigned, PATypeHolder>::iterator I =
TypesByHash.lower_bound(Hash);
print("add");
}
- void clear(std::vector<Type *> &DerivedTypes) {
- for (typename std::map<ValType, PATypeHolder>::iterator I = Map.begin(),
- E = Map.end(); I != E; ++I)
- DerivedTypes.push_back(I->second.get());
- TypesByHash.clear();
- Map.clear();
- }
-
- /// RefineAbstractType - This method is called after we have merged a type
+ /// RefineAbstractType - This method is called after we have merged a type
/// with another one. We must now either merge the type away with
/// some other type or reinstall it in the map with it's new configuration.
void RefineAbstractType(TypeClass *Ty, const DerivedType *OldType,
const Type *NewType) {
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "RefineAbstractType(" << (void*)OldType << "[" << *OldType
- << "], " << (void*)NewType << " [" << *NewType << "])\n";
+ DOUT << "RefineAbstractType(" << (void*)OldType << "[" << *OldType
+ << "], " << (void*)NewType << " [" << *NewType << "])\n";
#endif
// Otherwise, we are changing one subelement type into another. Clearly the
// The old record is now out-of-date, because one of the children has been
// updated. Remove the obsolete entry from the map.
unsigned NumErased = Map.erase(ValType::get(Ty));
- assert(NumErased && "Element not found!");
+ assert(NumErased && "Element not found!"); NumErased = NumErased;
// Remember the structural hash for the type before we start hacking on it,
// in case we need it later.
unsigned OldTypeHash = ValType::hashTypeStructure(Ty);
// Find the type element we are refining... and change it now!
- for (unsigned i = 0, e = Ty->ContainedTys.size(); i != e; ++i)
+ for (unsigned i = 0, e = Ty->getNumContainedTypes(); i != e; ++i)
if (Ty->ContainedTys[i] == OldType)
Ty->ContainedTys[i] = NewType;
unsigned NewTypeHash = ValType::hashTypeStructure(Ty);
// We already have this type in the table. Get rid of the newly refined
// type.
TypeClass *NewTy = cast<TypeClass>((Type*)I->second.get());
- Ty->refineAbstractTypeTo(NewTy);
+ Ty->unlockedRefineAbstractTypeTo(NewTy);
return;
}
} else {
}
TypesByHash.erase(Entry);
}
- Ty->refineAbstractTypeTo(NewTy);
+ Ty->unlockedRefineAbstractTypeTo(NewTy);
return;
}
}
void print(const char *Arg) const {
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "TypeMap<>::" << Arg << " table contents:\n";
+ DOUT << "TypeMap<>::" << Arg << " table contents:\n";
unsigned i = 0;
for (typename std::map<ValType, PATypeHolder>::const_iterator I
= Map.begin(), E = Map.end(); I != E; ++I)
- std::cerr << " " << (++i) << ". " << (void*)I->second.get() << " "
- << *I->second.get() << "\n";
+ DOUT << " " << (++i) << ". " << (void*)I->second.get() << " "
+ << *I->second.get() << "\n";
#endif
}
// Function Type Factory and Value Class...
//
+//===----------------------------------------------------------------------===//
+// Integer Type Factory...
+//
+namespace llvm {
+class IntegerValType {
+ uint32_t bits;
+public:
+ IntegerValType(uint16_t numbits) : bits(numbits) {}
+
+ static IntegerValType get(const IntegerType *Ty) {
+ return IntegerValType(Ty->getBitWidth());
+ }
+
+ static unsigned hashTypeStructure(const IntegerType *Ty) {
+ return (unsigned)Ty->getBitWidth();
+ }
+
+ inline bool operator<(const IntegerValType &IVT) const {
+ return bits < IVT.bits;
+ }
+};
+}
+
+static ManagedStatic<TypeMap<IntegerValType, IntegerType> > IntegerTypes;
+
+const IntegerType *IntegerType::get(unsigned NumBits) {
+ assert(NumBits >= MIN_INT_BITS && "bitwidth too small");
+ assert(NumBits <= MAX_INT_BITS && "bitwidth too large");
+
+ // Check for the built-in integer types
+ switch (NumBits) {
+ case 1: return cast<IntegerType>(Type::Int1Ty);
+ case 8: return cast<IntegerType>(Type::Int8Ty);
+ case 16: return cast<IntegerType>(Type::Int16Ty);
+ case 32: return cast<IntegerType>(Type::Int32Ty);
+ case 64: return cast<IntegerType>(Type::Int64Ty);
+ default:
+ break;
+ }
+
+ IntegerValType IVT(NumBits);
+ IntegerType *ITy = 0;
+ if (llvm_is_multithreaded()) {
+ // First, see if the type is already in the table, for which
+ // a reader lock suffices.
+ TypeMapLock->reader_acquire();
+ ITy = IntegerTypes->get(IVT);
+ TypeMapLock->reader_release();
+
+ if (!ITy) {
+ // OK, not in the table, get a writer lock.
+ TypeMapLock->writer_acquire();
+ ITy = IntegerTypes->get(IVT);
+
+ // We need to _recheck_ the table in case someone
+ // put it in between when we released the reader lock
+ // and when we gained the writer lock!
+ if (!ITy) {
+ // Value not found. Derive a new type!
+ ITy = new IntegerType(NumBits);
+ IntegerTypes->add(IVT, ITy);
+ }
+
+ TypeMapLock->writer_release();
+ }
+ } else {
+ ITy = IntegerTypes->get(IVT);
+ if (ITy) return ITy; // Found a match, return it!
+
+ // Value not found. Derive a new type!
+ ITy = new IntegerType(NumBits);
+ IntegerTypes->add(IVT, ITy);
+ }
+#ifdef DEBUG_MERGE_TYPES
+ DOUT << "Derived new type: " << *ITy << "\n";
+#endif
+ return ITy;
+}
+
+bool IntegerType::isPowerOf2ByteWidth() const {
+ unsigned BitWidth = getBitWidth();
+ return (BitWidth > 7) && isPowerOf2_32(BitWidth);
+}
+
+APInt IntegerType::getMask() const {
+ return APInt::getAllOnesValue(getBitWidth());
+}
+
// FunctionValType - Define a class to hold the key that goes into the TypeMap
//
namespace llvm {
bool isVarArg;
public:
FunctionValType(const Type *ret, const std::vector<const Type*> &args,
- bool IVA) : RetTy(ret), isVarArg(IVA) {
- for (unsigned i = 0; i < args.size(); ++i)
- ArgTypes.push_back(args[i]);
- }
+ bool isVA) : RetTy(ret), ArgTypes(args), isVarArg(isVA) {}
static FunctionValType get(const FunctionType *FT);
static unsigned hashTypeStructure(const FunctionType *FT) {
- return FT->getNumParams()*2+FT->isVarArg();
- }
-
- // Subclass should override this... to update self as usual
- void doRefinement(const DerivedType *OldType, const Type *NewType) {
- if (RetTy == OldType) RetTy = NewType;
- for (unsigned i = 0, e = ArgTypes.size(); i != e; ++i)
- if (ArgTypes[i] == OldType) ArgTypes[i] = NewType;
+ unsigned Result = FT->getNumParams()*2 + FT->isVarArg();
+ return Result;
}
inline bool operator<(const FunctionValType &MTV) const {
if (RetTy < MTV.RetTy) return true;
if (RetTy > MTV.RetTy) return false;
-
+ if (isVarArg < MTV.isVarArg) return true;
+ if (isVarArg > MTV.isVarArg) return false;
if (ArgTypes < MTV.ArgTypes) return true;
- return ArgTypes == MTV.ArgTypes && isVarArg < MTV.isVarArg;
+ if (ArgTypes > MTV.ArgTypes) return false;
+ return false;
}
};
}
// Define the actual map itself now...
-static TypeMap<FunctionValType, FunctionType> FunctionTypes;
+static ManagedStatic<TypeMap<FunctionValType, FunctionType> > FunctionTypes;
FunctionValType FunctionValType::get(const FunctionType *FT) {
// Build up a FunctionValType
const std::vector<const Type*> &Params,
bool isVarArg) {
FunctionValType VT(ReturnType, Params, isVarArg);
- FunctionType *MT = FunctionTypes.get(VT);
- if (MT) return MT;
-
- FunctionTypes.add(VT, MT = new FunctionType(ReturnType, Params, isVarArg));
-
+ FunctionType *FT = 0;
+
+ if (llvm_is_multithreaded()) {
+ TypeMapLock->reader_acquire();
+ FT = FunctionTypes->get(VT);
+ TypeMapLock->reader_release();
+
+ if (!FT) {
+ TypeMapLock->writer_acquire();
+
+ // Have to check again here, because it might have
+ // been inserted between when we release the reader
+ // lock and when we acquired the writer lock.
+ FT = FunctionTypes->get(VT);
+ if (!FT) {
+ FT = (FunctionType*) operator new(sizeof(FunctionType) +
+ sizeof(PATypeHandle)*(Params.size()+1));
+ new (FT) FunctionType(ReturnType, Params, isVarArg);
+ FunctionTypes->add(VT, FT);
+ }
+ TypeMapLock->writer_release();
+ }
+ } else {
+ FT = FunctionTypes->get(VT);
+ if (FT)
+ return FT;
+
+ FT = (FunctionType*) operator new(sizeof(FunctionType) +
+ sizeof(PATypeHandle)*(Params.size()+1));
+ new (FT) FunctionType(ReturnType, Params, isVarArg);
+ FunctionTypes->add(VT, FT);
+ }
+
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "Derived new type: " << MT << "\n";
+ DOUT << "Derived new type: " << FT << "\n";
#endif
- return MT;
+ return FT;
}
//===----------------------------------------------------------------------===//
return (unsigned)AT->getNumElements();
}
- // Subclass should override this... to update self as usual
- void doRefinement(const DerivedType *OldType, const Type *NewType) {
- assert(ValTy == OldType);
- ValTy = NewType;
- }
-
inline bool operator<(const ArrayValType &MTV) const {
if (Size < MTV.Size) return true;
return Size == MTV.Size && ValTy < MTV.ValTy;
}
};
}
-static TypeMap<ArrayValType, ArrayType> ArrayTypes;
+static ManagedStatic<TypeMap<ArrayValType, ArrayType> > ArrayTypes;
ArrayType *ArrayType::get(const Type *ElementType, uint64_t NumElements) {
- assert(ElementType && "Can't get array of null types!");
+ assert(ElementType && "Can't get array of <null> types!");
+ assert(isValidElementType(ElementType) && "Invalid type for array element!");
ArrayValType AVT(ElementType, NumElements);
- ArrayType *AT = ArrayTypes.get(AVT);
- if (AT) return AT; // Found a match, return it!
-
- // Value not found. Derive a new type!
- ArrayTypes.add(AVT, AT = new ArrayType(ElementType, NumElements));
-
+ ArrayType *AT = 0;
+
+ if (llvm_is_multithreaded()) {
+ TypeMapLock->reader_acquire();
+ AT = ArrayTypes->get(AVT);
+ TypeMapLock->reader_release();
+
+ if (!AT) {
+ TypeMapLock->writer_acquire();
+
+ // Recheck. Might have changed between release and acquire.
+ AT = ArrayTypes->get(AVT);
+ if (!AT) {
+ // Value not found. Derive a new type!
+ ArrayTypes->add(AVT, AT = new ArrayType(ElementType, NumElements));
+ }
+ TypeMapLock->writer_release();
+ }
+ } else {
+ AT = ArrayTypes->get(AVT);
+ if (AT) return AT; // Found a match, return it!
+
+ // Value not found. Derive a new type!
+ ArrayTypes->add(AVT, AT = new ArrayType(ElementType, NumElements));
+ }
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "Derived new type: " << *AT << "\n";
+ DOUT << "Derived new type: " << *AT << "\n";
#endif
return AT;
}
+bool ArrayType::isValidElementType(const Type *ElemTy) {
+ if (ElemTy == Type::VoidTy || ElemTy == Type::LabelTy ||
+ ElemTy == Type::MetadataTy)
+ return false;
+
+ if (const PointerType *PTy = dyn_cast<PointerType>(ElemTy))
+ if (PTy->getElementType() == Type::MetadataTy)
+ return false;
+
+ return true;
+}
+
//===----------------------------------------------------------------------===//
-// Packed Type Factory...
+// Vector Type Factory...
//
namespace llvm {
-class PackedValType {
+class VectorValType {
const Type *ValTy;
unsigned Size;
public:
- PackedValType(const Type *val, int sz) : ValTy(val), Size(sz) {}
+ VectorValType(const Type *val, int sz) : ValTy(val), Size(sz) {}
- static PackedValType get(const PackedType *PT) {
- return PackedValType(PT->getElementType(), PT->getNumElements());
+ static VectorValType get(const VectorType *PT) {
+ return VectorValType(PT->getElementType(), PT->getNumElements());
}
- static unsigned hashTypeStructure(const PackedType *PT) {
+ static unsigned hashTypeStructure(const VectorType *PT) {
return PT->getNumElements();
}
- // Subclass should override this... to update self as usual
- void doRefinement(const DerivedType *OldType, const Type *NewType) {
- assert(ValTy == OldType);
- ValTy = NewType;
- }
-
- inline bool operator<(const PackedValType &MTV) const {
+ inline bool operator<(const VectorValType &MTV) const {
if (Size < MTV.Size) return true;
return Size == MTV.Size && ValTy < MTV.ValTy;
}
};
}
-static TypeMap<PackedValType, PackedType> PackedTypes;
-
-
-PackedType *PackedType::get(const Type *ElementType, unsigned NumElements) {
- assert(ElementType && "Can't get packed of null types!");
- assert(isPowerOf2_32(NumElements) && "Vector length should be a power of 2!");
- PackedValType PVT(ElementType, NumElements);
- PackedType *PT = PackedTypes.get(PVT);
- if (PT) return PT; // Found a match, return it!
+static ManagedStatic<TypeMap<VectorValType, VectorType> > VectorTypes;
- // Value not found. Derive a new type!
- PackedTypes.add(PVT, PT = new PackedType(ElementType, NumElements));
+VectorType *VectorType::get(const Type *ElementType, unsigned NumElements) {
+ assert(ElementType && "Can't get vector of <null> types!");
+ VectorValType PVT(ElementType, NumElements);
+ VectorType *PT = 0;
+
+ if (llvm_is_multithreaded()) {
+ TypeMapLock->reader_acquire();
+ PT = VectorTypes->get(PVT);
+ TypeMapLock->reader_release();
+
+ if (!PT) {
+ TypeMapLock->writer_acquire();
+ PT = VectorTypes->get(PVT);
+ // Recheck. Might have changed between release and acquire.
+ if (!PT) {
+ VectorTypes->add(PVT, PT = new VectorType(ElementType, NumElements));
+ }
+ TypeMapLock->writer_acquire();
+ }
+ } else {
+ PT = VectorTypes->get(PVT);
+ if (PT) return PT; // Found a match, return it!
+
+ // Value not found. Derive a new type!
+ VectorTypes->add(PVT, PT = new VectorType(ElementType, NumElements));
+ }
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "Derived new type: " << *PT << "\n";
+ DOUT << "Derived new type: " << *PT << "\n";
#endif
return PT;
}
+bool VectorType::isValidElementType(const Type *ElemTy) {
+ if (ElemTy->isInteger() || ElemTy->isFloatingPoint() ||
+ isa<OpaqueType>(ElemTy))
+ return true;
+
+ return false;
+}
+
//===----------------------------------------------------------------------===//
// Struct Type Factory...
//
//
class StructValType {
std::vector<const Type*> ElTypes;
+ bool packed;
public:
- StructValType(const std::vector<const Type*> &args) : ElTypes(args) {}
+ StructValType(const std::vector<const Type*> &args, bool isPacked)
+ : ElTypes(args), packed(isPacked) {}
static StructValType get(const StructType *ST) {
std::vector<const Type *> ElTypes;
for (unsigned i = 0, e = ST->getNumElements(); i != e; ++i)
ElTypes.push_back(ST->getElementType(i));
- return StructValType(ElTypes);
+ return StructValType(ElTypes, ST->isPacked());
}
static unsigned hashTypeStructure(const StructType *ST) {
return ST->getNumElements();
}
- // Subclass should override this... to update self as usual
- void doRefinement(const DerivedType *OldType, const Type *NewType) {
- for (unsigned i = 0; i < ElTypes.size(); ++i)
- if (ElTypes[i] == OldType) ElTypes[i] = NewType;
- }
-
inline bool operator<(const StructValType &STV) const {
- return ElTypes < STV.ElTypes;
+ if (ElTypes < STV.ElTypes) return true;
+ else if (ElTypes > STV.ElTypes) return false;
+ else return (int)packed < (int)STV.packed;
}
};
}
-static TypeMap<StructValType, StructType> StructTypes;
-
-StructType *StructType::get(const std::vector<const Type*> &ETypes) {
- StructValType STV(ETypes);
- StructType *ST = StructTypes.get(STV);
- if (ST) return ST;
-
- // Value not found. Derive a new type!
- StructTypes.add(STV, ST = new StructType(ETypes));
+static ManagedStatic<TypeMap<StructValType, StructType> > StructTypes;
+StructType *StructType::get(const std::vector<const Type*> &ETypes,
+ bool isPacked) {
+ StructValType STV(ETypes, isPacked);
+ StructType *ST = 0;
+
+ if (llvm_is_multithreaded()) {
+ TypeMapLock->reader_acquire();
+ ST = StructTypes->get(STV);
+ TypeMapLock->reader_release();
+
+ if (!ST) {
+ TypeMapLock->writer_acquire();
+ ST = StructTypes->get(STV);
+ // Recheck. Might have changed between release and acquire.
+ if (!ST) {
+ // Value not found. Derive a new type!
+ ST = (StructType*) operator new(sizeof(StructType) +
+ sizeof(PATypeHandle) * ETypes.size());
+ new (ST) StructType(ETypes, isPacked);
+ StructTypes->add(STV, ST);
+ }
+ TypeMapLock->writer_release();
+ }
+ } else {
+ ST = StructTypes->get(STV);
+ if (ST) return ST;
+
+ // Value not found. Derive a new type!
+ ST = (StructType*) operator new(sizeof(StructType) +
+ sizeof(PATypeHandle) * ETypes.size());
+ new (ST) StructType(ETypes, isPacked);
+ StructTypes->add(STV, ST);
+ }
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "Derived new type: " << *ST << "\n";
+ DOUT << "Derived new type: " << *ST << "\n";
#endif
return ST;
}
+StructType *StructType::get(const Type *type, ...) {
+ va_list ap;
+ std::vector<const llvm::Type*> StructFields;
+ va_start(ap, type);
+ while (type) {
+ StructFields.push_back(type);
+ type = va_arg(ap, llvm::Type*);
+ }
+ return llvm::StructType::get(StructFields);
+}
+
+bool StructType::isValidElementType(const Type *ElemTy) {
+ if (ElemTy == Type::VoidTy || ElemTy == Type::LabelTy ||
+ ElemTy == Type::MetadataTy)
+ return false;
+
+ if (const PointerType *PTy = dyn_cast<PointerType>(ElemTy))
+ if (PTy->getElementType() == Type::MetadataTy)
+ return false;
+
+ return true;
+}
//===----------------------------------------------------------------------===//
namespace llvm {
class PointerValType {
const Type *ValTy;
+ unsigned AddressSpace;
public:
- PointerValType(const Type *val) : ValTy(val) {}
+ PointerValType(const Type *val, unsigned as) : ValTy(val), AddressSpace(as) {}
static PointerValType get(const PointerType *PT) {
- return PointerValType(PT->getElementType());
+ return PointerValType(PT->getElementType(), PT->getAddressSpace());
}
static unsigned hashTypeStructure(const PointerType *PT) {
return getSubElementHash(PT);
}
- // Subclass should override this... to update self as usual
- void doRefinement(const DerivedType *OldType, const Type *NewType) {
- assert(ValTy == OldType);
- ValTy = NewType;
- }
-
bool operator<(const PointerValType &MTV) const {
- return ValTy < MTV.ValTy;
+ if (AddressSpace < MTV.AddressSpace) return true;
+ return AddressSpace == MTV.AddressSpace && ValTy < MTV.ValTy;
}
};
}
-static TypeMap<PointerValType, PointerType> PointerTypes;
+static ManagedStatic<TypeMap<PointerValType, PointerType> > PointerTypes;
-PointerType *PointerType::get(const Type *ValueType) {
+PointerType *PointerType::get(const Type *ValueType, unsigned AddressSpace) {
assert(ValueType && "Can't get a pointer to <null> type!");
assert(ValueType != Type::VoidTy &&
- "Pointer to void is not valid, use sbyte* instead!");
- PointerValType PVT(ValueType);
-
- PointerType *PT = PointerTypes.get(PVT);
- if (PT) return PT;
-
- // Value not found. Derive a new type!
- PointerTypes.add(PVT, PT = new PointerType(ValueType));
+ "Pointer to void is not valid, use i8* instead!");
+ assert(isValidElementType(ValueType) && "Invalid type for pointer element!");
+ PointerValType PVT(ValueType, AddressSpace);
+ PointerType *PT = 0;
+
+ if (llvm_is_multithreaded()) {
+ TypeMapLock->reader_acquire();
+ PT = PointerTypes->get(PVT);
+ TypeMapLock->reader_release();
+
+ if (!PT) {
+ TypeMapLock->writer_acquire();
+ PT = PointerTypes->get(PVT);
+ // Recheck. Might have changed between release and acquire.
+ if (!PT) {
+ // Value not found. Derive a new type!
+ PointerTypes->add(PVT, PT = new PointerType(ValueType, AddressSpace));
+ }
+ TypeMapLock->writer_release();
+ }
+ } else {
+ PT = PointerTypes->get(PVT);
+ if (PT) return PT;
+
+ // Value not found. Derive a new type!
+ PointerTypes->add(PVT, PT = new PointerType(ValueType, AddressSpace));
+ }
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "Derived new type: " << *PT << "\n";
+ DOUT << "Derived new type: " << *PT << "\n";
#endif
return PT;
}
+PointerType *Type::getPointerTo(unsigned addrs) const {
+ return PointerType::get(this, addrs);
+}
+
+bool PointerType::isValidElementType(const Type *ElemTy) {
+ if (ElemTy == Type::VoidTy || ElemTy == Type::LabelTy)
+ return false;
+
+ if (const PointerType *PTy = dyn_cast<PointerType>(ElemTy))
+ if (PTy->getElementType() == Type::MetadataTy)
+ return false;
+
+ return true;
+}
+
+
//===----------------------------------------------------------------------===//
// Derived Type Refinement Functions
//===----------------------------------------------------------------------===//
+// addAbstractTypeUser - Notify an abstract type that there is a new user of
+// it. This function is called primarily by the PATypeHandle class.
+void Type::addAbstractTypeUser(AbstractTypeUser *U) const {
+ assert(isAbstract() && "addAbstractTypeUser: Current type not abstract!");
+ if (llvm_is_multithreaded()) {
+ AbstractTypeUsersLock->acquire();
+ AbstractTypeUsers.push_back(U);
+ AbstractTypeUsersLock->release();
+ } else {
+ AbstractTypeUsers.push_back(U);
+ }
+}
+
+
// removeAbstractTypeUser - Notify an abstract type that a user of the class
// no longer has a handle to the type. This function is called primarily by
// the PATypeHandle class. When there are no users of the abstract type, it
// is annihilated, because there is no way to get a reference to it ever again.
//
void Type::removeAbstractTypeUser(AbstractTypeUser *U) const {
+ if (llvm_is_multithreaded()) AbstractTypeUsersLock->acquire();
+
// Search from back to front because we will notify users from back to
// front. Also, it is likely that there will be a stack like behavior to
// users that register and unregister users.
AbstractTypeUsers.erase(AbstractTypeUsers.begin()+i);
#ifdef DEBUG_MERGE_TYPES
- std::cerr << " remAbstractTypeUser[" << (void*)this << ", "
- << *this << "][" << i << "] User = " << U << "\n";
+ DOUT << " remAbstractTypeUser[" << (void*)this << ", "
+ << *this << "][" << i << "] User = " << U << "\n";
#endif
if (AbstractTypeUsers.empty() && getRefCount() == 0 && isAbstract()) {
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "DELETEing unused abstract type: <" << *this
- << ">[" << (void*)this << "]" << "\n";
+ DOUT << "DELETEing unused abstract type: <" << *this
+ << ">[" << (void*)this << "]" << "\n";
#endif
- delete this; // No users of this abstract type!
+
+ this->destroy();
}
+
+ if (llvm_is_multithreaded()) AbstractTypeUsersLock->release();
}
-
-// refineAbstractTypeTo - This function is used when it is discovered that
-// the 'this' abstract type is actually equivalent to the NewType specified.
-// This causes all users of 'this' to switch to reference the more concrete type
-// NewType and for 'this' to be deleted.
+// unlockedRefineAbstractTypeTo - This function is used when it is discovered
+// that the 'this' abstract type is actually equivalent to the NewType
+// specified. This causes all users of 'this' to switch to reference the more
+// concrete type NewType and for 'this' to be deleted. Only used for internal
+// callers.
//
-void DerivedType::refineAbstractTypeTo(const Type *NewType) {
+void DerivedType::unlockedRefineAbstractTypeTo(const Type *NewType) {
assert(isAbstract() && "refineAbstractTypeTo: Current type is not abstract!");
assert(this != NewType && "Can't refine to myself!");
assert(ForwardType == 0 && "This type has already been refined!");
// The descriptions may be out of date. Conservatively clear them all!
- AbstractTypeDescriptions.clear();
+ if (AbstractTypeDescriptions.isConstructed())
+ AbstractTypeDescriptions->clear();
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "REFINING abstract type [" << (void*)this << " "
- << *this << "] to [" << (void*)NewType << " "
- << *NewType << "]!\n";
+ DOUT << "REFINING abstract type [" << (void*)this << " "
+ << *this << "] to [" << (void*)NewType << " "
+ << *NewType << "]!\n";
#endif
// Make sure to put the type to be refined to into a holder so that if IT gets
// refined, that we will not continue using a dead reference...
//
PATypeHolder NewTy(NewType);
-
- // Any PATypeHolders referring to this type will now automatically forward to
+ // Any PATypeHolders referring to this type will now automatically forward o
// the type we are resolved to.
ForwardType = NewType;
if (NewType->isAbstract())
// will not cause users to drop off of the use list. If we resolve to ourself
// we succeed!
//
+ if (llvm_is_multithreaded()) AbstractTypeUsersLock->acquire();
while (!AbstractTypeUsers.empty() && NewTy != this) {
AbstractTypeUser *User = AbstractTypeUsers.back();
- unsigned OldSize = AbstractTypeUsers.size();
+ unsigned OldSize = AbstractTypeUsers.size(); OldSize=OldSize;
#ifdef DEBUG_MERGE_TYPES
- std::cerr << " REFINING user " << OldSize-1 << "[" << (void*)User
- << "] of abstract type [" << (void*)this << " "
- << *this << "] to [" << (void*)NewTy.get() << " "
- << *NewTy << "]!\n";
+ DOUT << " REFINING user " << OldSize-1 << "[" << (void*)User
+ << "] of abstract type [" << (void*)this << " "
+ << *this << "] to [" << (void*)NewTy.get() << " "
+ << *NewTy << "]!\n";
#endif
User->refineAbstractType(this, NewTy);
assert(AbstractTypeUsers.size() != OldSize &&
"AbsTyUser did not remove self from user list!");
}
+ if (llvm_is_multithreaded()) AbstractTypeUsersLock->release();
// If we were successful removing all users from the type, 'this' will be
// deleted when the last PATypeHolder is destroyed or updated from this type.
// destroyed.
}
+// refineAbstractTypeTo - This function is used by external callers to notify
+// us that this abstract type is equivalent to another type.
+//
+void DerivedType::refineAbstractTypeTo(const Type *NewType) {
+ if (llvm_is_multithreaded()) {
+ // All recursive calls will go through unlockedRefineAbstractTypeTo,
+ // to avoid deadlock problems.
+ TypeMapLock->writer_acquire();
+ unlockedRefineAbstractTypeTo(NewType);
+ TypeMapLock->writer_release();
+ } else {
+ unlockedRefineAbstractTypeTo(NewType);
+ }
+}
+
// notifyUsesThatTypeBecameConcrete - Notify AbstractTypeUsers of this type that
// the current type has transitioned from being abstract to being concrete.
//
void DerivedType::notifyUsesThatTypeBecameConcrete() {
#ifdef DEBUG_MERGE_TYPES
- std::cerr << "typeIsREFINED type: " << (void*)this << " " << *this << "\n";
+ DOUT << "typeIsREFINED type: " << (void*)this << " " << *this << "\n";
#endif
- unsigned OldSize = AbstractTypeUsers.size();
+ if (llvm_is_multithreaded()) AbstractTypeUsersLock->acquire();
+ unsigned OldSize = AbstractTypeUsers.size(); OldSize=OldSize;
while (!AbstractTypeUsers.empty()) {
AbstractTypeUser *ATU = AbstractTypeUsers.back();
ATU->typeBecameConcrete(this);
assert(AbstractTypeUsers.size() < OldSize-- &&
"AbstractTypeUser did not remove itself from the use list!");
}
+ if (llvm_is_multithreaded()) AbstractTypeUsersLock->release();
}
// refineAbstractType - Called when a contained type is found to be more
//
void FunctionType::refineAbstractType(const DerivedType *OldType,
const Type *NewType) {
- FunctionTypes.RefineAbstractType(this, OldType, NewType);
+ FunctionTypes->RefineAbstractType(this, OldType, NewType);
}
void FunctionType::typeBecameConcrete(const DerivedType *AbsTy) {
- FunctionTypes.TypeBecameConcrete(this, AbsTy);
+ FunctionTypes->TypeBecameConcrete(this, AbsTy);
}
//
void ArrayType::refineAbstractType(const DerivedType *OldType,
const Type *NewType) {
- ArrayTypes.RefineAbstractType(this, OldType, NewType);
+ ArrayTypes->RefineAbstractType(this, OldType, NewType);
}
void ArrayType::typeBecameConcrete(const DerivedType *AbsTy) {
- ArrayTypes.TypeBecameConcrete(this, AbsTy);
+ ArrayTypes->TypeBecameConcrete(this, AbsTy);
}
// refineAbstractType - Called when a contained type is found to be more
// concrete - this could potentially change us from an abstract type to a
// concrete type.
//
-void PackedType::refineAbstractType(const DerivedType *OldType,
+void VectorType::refineAbstractType(const DerivedType *OldType,
const Type *NewType) {
- PackedTypes.RefineAbstractType(this, OldType, NewType);
+ VectorTypes->RefineAbstractType(this, OldType, NewType);
}
-void PackedType::typeBecameConcrete(const DerivedType *AbsTy) {
- PackedTypes.TypeBecameConcrete(this, AbsTy);
+void VectorType::typeBecameConcrete(const DerivedType *AbsTy) {
+ VectorTypes->TypeBecameConcrete(this, AbsTy);
}
// refineAbstractType - Called when a contained type is found to be more
//
void StructType::refineAbstractType(const DerivedType *OldType,
const Type *NewType) {
- StructTypes.RefineAbstractType(this, OldType, NewType);
+ StructTypes->RefineAbstractType(this, OldType, NewType);
}
void StructType::typeBecameConcrete(const DerivedType *AbsTy) {
- StructTypes.TypeBecameConcrete(this, AbsTy);
+ StructTypes->TypeBecameConcrete(this, AbsTy);
}
// refineAbstractType - Called when a contained type is found to be more
//
void PointerType::refineAbstractType(const DerivedType *OldType,
const Type *NewType) {
- PointerTypes.RefineAbstractType(this, OldType, NewType);
+ PointerTypes->RefineAbstractType(this, OldType, NewType);
}
void PointerType::typeBecameConcrete(const DerivedType *AbsTy) {
- PointerTypes.TypeBecameConcrete(this, AbsTy);
+ PointerTypes->TypeBecameConcrete(this, AbsTy);
}
bool SequentialType::indexValid(const Value *V) const {
- const Type *Ty = V->getType();
- switch (Ty->getTypeID()) {
- case Type::IntTyID:
- case Type::UIntTyID:
- case Type::LongTyID:
- case Type::ULongTyID:
+ if (isa<IntegerType>(V->getType()))
return true;
- default:
- return false;
- }
+ return false;
}
namespace llvm {
T.print(OS);
return OS;
}
-}
-
-/// clearAllTypeMaps - This method frees all internal memory used by the
-/// type subsystem, which can be used in environments where this memory is
-/// otherwise reported as a leak.
-void Type::clearAllTypeMaps() {
- std::vector<Type *> DerivedTypes;
-
- FunctionTypes.clear(DerivedTypes);
- PointerTypes.clear(DerivedTypes);
- StructTypes.clear(DerivedTypes);
- ArrayTypes.clear(DerivedTypes);
- PackedTypes.clear(DerivedTypes);
- for(std::vector<Type *>::iterator I = DerivedTypes.begin(),
- E = DerivedTypes.end(); I != E; ++I)
- (*I)->ContainedTys.clear();
- for(std::vector<Type *>::iterator I = DerivedTypes.begin(),
- E = DerivedTypes.end(); I != E; ++I)
- delete *I;
- DerivedTypes.clear();
+raw_ostream &operator<<(raw_ostream &OS, const Type &T) {
+ T.print(OS);
+ return OS;
+}
}
-
-// vim: sw=2
projects / oota-llvm.git / blobdiff