| /* |
| * Copyright 2010, The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include "slang_rs_export_type.h" |
| |
| #include <list> |
| #include <vector> |
| |
| #include "clang/AST/RecordLayout.h" |
| |
| #include "llvm/ADT/StringExtras.h" |
| |
| #include "llvm/DerivedTypes.h" |
| |
| #include "llvm/Target/TargetData.h" |
| |
| #include "llvm/Type.h" |
| |
| #include "slang_assert.h" |
| #include "slang_rs_context.h" |
| #include "slang_rs_export_element.h" |
| #include "slang_rs_type_spec.h" |
| |
| #define CHECK_PARENT_EQUALITY(ParentClass, E) \ |
| if (!ParentClass::equals(E)) \ |
| return false; |
| |
| namespace slang { |
| |
| namespace { |
| |
| static const clang::Type *TypeExportableHelper( |
| const clang::Type *T, |
| llvm::SmallPtrSet<const clang::Type*, 8>& SPS, |
| clang::Diagnostic *Diags, |
| clang::SourceManager *SM, |
| const clang::VarDecl *VD, |
| const clang::RecordDecl *TopLevelRecord); |
| |
| static void ReportTypeError(clang::Diagnostic *Diags, |
| const clang::SourceManager *SM, |
| const clang::VarDecl *VD, |
| const clang::RecordDecl *TopLevelRecord, |
| const char *Message) { |
| if (!Diags || !SM) { |
| return; |
| } |
| |
| // Attempt to use the type declaration first (if we have one). |
| // Fall back to the variable definition, if we are looking at something |
| // like an array declaration that can't be exported. |
| if (TopLevelRecord) { |
| Diags->Report(clang::FullSourceLoc(TopLevelRecord->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, Message)) |
| << TopLevelRecord->getName(); |
| } else if (VD) { |
| Diags->Report(clang::FullSourceLoc(VD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, Message)) |
| << VD->getName(); |
| } else { |
| slangAssert(false && "Variables should be validated before exporting"); |
| } |
| |
| return; |
| } |
| |
| static const clang::Type *ConstantArrayTypeExportableHelper( |
| const clang::ConstantArrayType *CAT, |
| llvm::SmallPtrSet<const clang::Type*, 8>& SPS, |
| clang::Diagnostic *Diags, |
| clang::SourceManager *SM, |
| const clang::VarDecl *VD, |
| const clang::RecordDecl *TopLevelRecord) { |
| // Check element type |
| const clang::Type *ElementType = GET_CONSTANT_ARRAY_ELEMENT_TYPE(CAT); |
| if (ElementType->isArrayType()) { |
| ReportTypeError(Diags, SM, VD, TopLevelRecord, |
| "multidimensional arrays cannot be exported: '%0'"); |
| return NULL; |
| } else if (ElementType->isExtVectorType()) { |
| const clang::ExtVectorType *EVT = |
| static_cast<const clang::ExtVectorType*>(ElementType); |
| unsigned numElements = EVT->getNumElements(); |
| |
| const clang::Type *BaseElementType = GET_EXT_VECTOR_ELEMENT_TYPE(EVT); |
| if (!RSExportPrimitiveType::IsPrimitiveType(BaseElementType)) { |
| ReportTypeError(Diags, SM, VD, TopLevelRecord, |
| "vectors of non-primitive types cannot be exported: '%0'"); |
| return NULL; |
| } |
| |
| if (numElements == 3 && CAT->getSize() != 1) { |
| ReportTypeError(Diags, SM, VD, TopLevelRecord, |
| "arrays of width 3 vector types cannot be exported: '%0'"); |
| return NULL; |
| } |
| } |
| |
| if (TypeExportableHelper(ElementType, SPS, Diags, SM, VD, |
| TopLevelRecord) == NULL) |
| return NULL; |
| else |
| return CAT; |
| } |
| |
| static const clang::Type *TypeExportableHelper( |
| const clang::Type *T, |
| llvm::SmallPtrSet<const clang::Type*, 8>& SPS, |
| clang::Diagnostic *Diags, |
| clang::SourceManager *SM, |
| const clang::VarDecl *VD, |
| const clang::RecordDecl *TopLevelRecord) { |
| // Normalize first |
| if ((T = GET_CANONICAL_TYPE(T)) == NULL) |
| return NULL; |
| |
| if (SPS.count(T)) |
| return T; |
| |
| switch (T->getTypeClass()) { |
| case clang::Type::Builtin: { |
| const clang::BuiltinType *BT = UNSAFE_CAST_TYPE(clang::BuiltinType, T); |
| |
| switch (BT->getKind()) { |
| #define ENUM_SUPPORT_BUILTIN_TYPE(builtin_type, type, cname) \ |
| case builtin_type: |
| #include "RSClangBuiltinEnums.inc" |
| return T; |
| default: { |
| return NULL; |
| } |
| } |
| } |
| case clang::Type::Record: { |
| if (RSExportPrimitiveType::GetRSSpecificType(T) != |
| RSExportPrimitiveType::DataTypeUnknown) |
| return T; // RS object type, no further checks are needed |
| |
| // Check internal struct |
| if (T->isUnionType()) { |
| ReportTypeError(Diags, SM, NULL, T->getAsUnionType()->getDecl(), |
| "unions cannot be exported: '%0'"); |
| return NULL; |
| } else if (!T->isStructureType()) { |
| slangAssert(false && "Unknown type cannot be exported"); |
| return NULL; |
| } |
| |
| clang::RecordDecl *RD = T->getAsStructureType()->getDecl(); |
| if (RD != NULL) { |
| RD = RD->getDefinition(); |
| if (RD == NULL) { |
| ReportTypeError(Diags, SM, NULL, T->getAsStructureType()->getDecl(), |
| "struct is not defined in this module"); |
| return NULL; |
| } |
| } |
| |
| if (!TopLevelRecord) { |
| TopLevelRecord = RD; |
| } |
| if (RD->getName().empty()) { |
| ReportTypeError(Diags, SM, NULL, RD, |
| "anonymous structures cannot be exported"); |
| return NULL; |
| } |
| |
| // Fast check |
| if (RD->hasFlexibleArrayMember() || RD->hasObjectMember()) |
| return NULL; |
| |
| // Insert myself into checking set |
| SPS.insert(T); |
| |
| // Check all element |
| for (clang::RecordDecl::field_iterator FI = RD->field_begin(), |
| FE = RD->field_end(); |
| FI != FE; |
| FI++) { |
| const clang::FieldDecl *FD = *FI; |
| const clang::Type *FT = RSExportType::GetTypeOfDecl(FD); |
| FT = GET_CANONICAL_TYPE(FT); |
| |
| if (!TypeExportableHelper(FT, SPS, Diags, SM, VD, TopLevelRecord)) { |
| return NULL; |
| } |
| |
| // We don't support bit fields yet |
| // |
| // TODO(zonr/srhines): allow bit fields of size 8, 16, 32 |
| if (FD->isBitField()) { |
| if (Diags && SM) { |
| Diags->Report(clang::FullSourceLoc(FD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "bit fields are not able to be exported: '%0.%1'")) |
| << RD->getName() |
| << FD->getName(); |
| } |
| return NULL; |
| } |
| } |
| |
| return T; |
| } |
| case clang::Type::Pointer: { |
| if (TopLevelRecord) { |
| ReportTypeError(Diags, SM, NULL, TopLevelRecord, |
| "structures containing pointers cannot be exported: '%0'"); |
| return NULL; |
| } |
| |
| const clang::PointerType *PT = UNSAFE_CAST_TYPE(clang::PointerType, T); |
| const clang::Type *PointeeType = GET_POINTEE_TYPE(PT); |
| |
| if (PointeeType->getTypeClass() == clang::Type::Pointer) |
| return T; |
| // We don't support pointer with array-type pointee or unsupported pointee |
| // type |
| if (PointeeType->isArrayType() || |
| (TypeExportableHelper(PointeeType, SPS, Diags, SM, VD, |
| TopLevelRecord) == NULL)) |
| return NULL; |
| else |
| return T; |
| } |
| case clang::Type::ExtVector: { |
| const clang::ExtVectorType *EVT = |
| UNSAFE_CAST_TYPE(clang::ExtVectorType, T); |
| // Only vector with size 2, 3 and 4 are supported. |
| if (EVT->getNumElements() < 2 || EVT->getNumElements() > 4) |
| return NULL; |
| |
| // Check base element type |
| const clang::Type *ElementType = GET_EXT_VECTOR_ELEMENT_TYPE(EVT); |
| |
| if ((ElementType->getTypeClass() != clang::Type::Builtin) || |
| (TypeExportableHelper(ElementType, SPS, Diags, SM, VD, |
| TopLevelRecord) == NULL)) |
| return NULL; |
| else |
| return T; |
| } |
| case clang::Type::ConstantArray: { |
| const clang::ConstantArrayType *CAT = |
| UNSAFE_CAST_TYPE(clang::ConstantArrayType, T); |
| |
| return ConstantArrayTypeExportableHelper(CAT, SPS, Diags, SM, VD, |
| TopLevelRecord); |
| } |
| default: { |
| return NULL; |
| } |
| } |
| } |
| |
| // Return the type that can be used to create RSExportType, will always return |
| // the canonical type |
| // If the Type T is not exportable, this function returns NULL. Diags and SM |
| // are used to generate proper Clang diagnostic messages when a |
| // non-exportable type is detected. TopLevelRecord is used to capture the |
| // highest struct (in the case of a nested hierarchy) for detecting other |
| // types that cannot be exported (mostly pointers within a struct). |
| static const clang::Type *TypeExportable(const clang::Type *T, |
| clang::Diagnostic *Diags, |
| clang::SourceManager *SM, |
| const clang::VarDecl *VD) { |
| llvm::SmallPtrSet<const clang::Type*, 8> SPS = |
| llvm::SmallPtrSet<const clang::Type*, 8>(); |
| |
| return TypeExportableHelper(T, SPS, Diags, SM, VD, NULL); |
| } |
| |
| } // namespace |
| |
| /****************************** RSExportType ******************************/ |
| bool RSExportType::NormalizeType(const clang::Type *&T, |
| llvm::StringRef &TypeName, |
| clang::Diagnostic *Diags, |
| clang::SourceManager *SM, |
| const clang::VarDecl *VD) { |
| if ((T = TypeExportable(T, Diags, SM, VD)) == NULL) { |
| return false; |
| } |
| // Get type name |
| TypeName = RSExportType::GetTypeName(T); |
| if (TypeName.empty()) { |
| if (Diags && SM) { |
| if (VD) { |
| Diags->Report(clang::FullSourceLoc(VD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "anonymous types cannot " |
| "be exported")); |
| } else { |
| Diags->Report(Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "anonymous types cannot " |
| "be exported")); |
| } |
| } |
| return false; |
| } |
| |
| return true; |
| } |
| |
| const clang::Type |
| *RSExportType::GetTypeOfDecl(const clang::DeclaratorDecl *DD) { |
| if (DD) { |
| clang::QualType T; |
| if (DD->getTypeSourceInfo()) |
| T = DD->getTypeSourceInfo()->getType(); |
| else |
| T = DD->getType(); |
| |
| if (T.isNull()) |
| return NULL; |
| else |
| return T.getTypePtr(); |
| } |
| return NULL; |
| } |
| |
| llvm::StringRef RSExportType::GetTypeName(const clang::Type* T) { |
| T = GET_CANONICAL_TYPE(T); |
| if (T == NULL) |
| return llvm::StringRef(); |
| |
| switch (T->getTypeClass()) { |
| case clang::Type::Builtin: { |
| const clang::BuiltinType *BT = UNSAFE_CAST_TYPE(clang::BuiltinType, T); |
| |
| switch (BT->getKind()) { |
| #define ENUM_SUPPORT_BUILTIN_TYPE(builtin_type, type, cname) \ |
| case builtin_type: \ |
| return cname; \ |
| break; |
| #include "RSClangBuiltinEnums.inc" |
| default: { |
| slangAssert(false && "Unknown data type of the builtin"); |
| break; |
| } |
| } |
| break; |
| } |
| case clang::Type::Record: { |
| clang::RecordDecl *RD; |
| if (T->isStructureType()) { |
| RD = T->getAsStructureType()->getDecl(); |
| } else { |
| break; |
| } |
| |
| llvm::StringRef Name = RD->getName(); |
| if (Name.empty()) { |
| if (RD->getTypedefForAnonDecl() != NULL) |
| Name = RD->getTypedefForAnonDecl()->getName(); |
| |
| if (Name.empty()) |
| // Try to find a name from redeclaration (i.e. typedef) |
| for (clang::TagDecl::redecl_iterator RI = RD->redecls_begin(), |
| RE = RD->redecls_end(); |
| RI != RE; |
| RI++) { |
| slangAssert(*RI != NULL && "cannot be NULL object"); |
| |
| Name = (*RI)->getName(); |
| if (!Name.empty()) |
| break; |
| } |
| } |
| return Name; |
| } |
| case clang::Type::Pointer: { |
| // "*" plus pointee name |
| const clang::Type *PT = GET_POINTEE_TYPE(T); |
| llvm::StringRef PointeeName; |
| if (NormalizeType(PT, PointeeName, NULL, NULL, NULL)) { |
| char *Name = new char[ 1 /* * */ + PointeeName.size() + 1 ]; |
| Name[0] = '*'; |
| memcpy(Name + 1, PointeeName.data(), PointeeName.size()); |
| Name[PointeeName.size() + 1] = '\0'; |
| return Name; |
| } |
| break; |
| } |
| case clang::Type::ExtVector: { |
| const clang::ExtVectorType *EVT = |
| UNSAFE_CAST_TYPE(clang::ExtVectorType, T); |
| return RSExportVectorType::GetTypeName(EVT); |
| break; |
| } |
| case clang::Type::ConstantArray : { |
| // Construct name for a constant array is too complicated. |
| return DUMMY_TYPE_NAME_FOR_RS_CONSTANT_ARRAY_TYPE; |
| } |
| default: { |
| break; |
| } |
| } |
| |
| return llvm::StringRef(); |
| } |
| |
| |
| RSExportType *RSExportType::Create(RSContext *Context, |
| const clang::Type *T, |
| const llvm::StringRef &TypeName) { |
| // Lookup the context to see whether the type was processed before. |
| // Newly created RSExportType will insert into context |
| // in RSExportType::RSExportType() |
| RSContext::export_type_iterator ETI = Context->findExportType(TypeName); |
| |
| if (ETI != Context->export_types_end()) |
| return ETI->second; |
| |
| RSExportType *ET = NULL; |
| switch (T->getTypeClass()) { |
| case clang::Type::Record: { |
| RSExportPrimitiveType::DataType dt = |
| RSExportPrimitiveType::GetRSSpecificType(TypeName); |
| switch (dt) { |
| case RSExportPrimitiveType::DataTypeUnknown: { |
| // User-defined types |
| ET = RSExportRecordType::Create(Context, |
| T->getAsStructureType(), |
| TypeName); |
| break; |
| } |
| case RSExportPrimitiveType::DataTypeRSMatrix2x2: { |
| // 2 x 2 Matrix type |
| ET = RSExportMatrixType::Create(Context, |
| T->getAsStructureType(), |
| TypeName, |
| 2); |
| break; |
| } |
| case RSExportPrimitiveType::DataTypeRSMatrix3x3: { |
| // 3 x 3 Matrix type |
| ET = RSExportMatrixType::Create(Context, |
| T->getAsStructureType(), |
| TypeName, |
| 3); |
| break; |
| } |
| case RSExportPrimitiveType::DataTypeRSMatrix4x4: { |
| // 4 x 4 Matrix type |
| ET = RSExportMatrixType::Create(Context, |
| T->getAsStructureType(), |
| TypeName, |
| 4); |
| break; |
| } |
| default: { |
| // Others are primitive types |
| ET = RSExportPrimitiveType::Create(Context, T, TypeName); |
| break; |
| } |
| } |
| break; |
| } |
| case clang::Type::Builtin: { |
| ET = RSExportPrimitiveType::Create(Context, T, TypeName); |
| break; |
| } |
| case clang::Type::Pointer: { |
| ET = RSExportPointerType::Create(Context, |
| UNSAFE_CAST_TYPE(clang::PointerType, T), |
| TypeName); |
| // FIXME: free the name (allocated in RSExportType::GetTypeName) |
| delete [] TypeName.data(); |
| break; |
| } |
| case clang::Type::ExtVector: { |
| ET = RSExportVectorType::Create(Context, |
| UNSAFE_CAST_TYPE(clang::ExtVectorType, T), |
| TypeName); |
| break; |
| } |
| case clang::Type::ConstantArray: { |
| ET = RSExportConstantArrayType::Create( |
| Context, |
| UNSAFE_CAST_TYPE(clang::ConstantArrayType, T)); |
| break; |
| } |
| default: { |
| clang::Diagnostic *Diags = Context->getDiagnostics(); |
| Diags->Report(Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "unknown type cannot be exported: '%0'")) |
| << T->getTypeClassName(); |
| break; |
| } |
| } |
| |
| return ET; |
| } |
| |
| RSExportType *RSExportType::Create(RSContext *Context, const clang::Type *T) { |
| llvm::StringRef TypeName; |
| if (NormalizeType(T, TypeName, NULL, NULL, NULL)) |
| return Create(Context, T, TypeName); |
| else |
| return NULL; |
| } |
| |
| RSExportType *RSExportType::CreateFromDecl(RSContext *Context, |
| const clang::VarDecl *VD) { |
| return RSExportType::Create(Context, GetTypeOfDecl(VD)); |
| } |
| |
| size_t RSExportType::GetTypeStoreSize(const RSExportType *ET) { |
| return ET->getRSContext()->getTargetData()->getTypeStoreSize( |
| ET->getLLVMType()); |
| } |
| |
| size_t RSExportType::GetTypeAllocSize(const RSExportType *ET) { |
| if (ET->getClass() == RSExportType::ExportClassRecord) |
| return static_cast<const RSExportRecordType*>(ET)->getAllocSize(); |
| else |
| return ET->getRSContext()->getTargetData()->getTypeAllocSize( |
| ET->getLLVMType()); |
| } |
| |
| RSExportType::RSExportType(RSContext *Context, |
| ExportClass Class, |
| const llvm::StringRef &Name) |
| : RSExportable(Context, RSExportable::EX_TYPE), |
| mClass(Class), |
| // Make a copy on Name since memory stored @Name is either allocated in |
| // ASTContext or allocated in GetTypeName which will be destroyed later. |
| mName(Name.data(), Name.size()), |
| mLLVMType(NULL), |
| mSpecType(NULL) { |
| // Don't cache the type whose name start with '<'. Those type failed to |
| // get their name since constructing their name in GetTypeName() requiring |
| // complicated work. |
| if (!Name.startswith(DUMMY_RS_TYPE_NAME_PREFIX)) |
| // TODO(zonr): Need to check whether the insertion is successful or not. |
| Context->insertExportType(llvm::StringRef(Name), this); |
| return; |
| } |
| |
| bool RSExportType::keep() { |
| if (!RSExportable::keep()) |
| return false; |
| // Invalidate converted LLVM type. |
| mLLVMType = NULL; |
| return true; |
| } |
| |
| bool RSExportType::equals(const RSExportable *E) const { |
| CHECK_PARENT_EQUALITY(RSExportable, E); |
| return (static_cast<const RSExportType*>(E)->getClass() == getClass()); |
| } |
| |
| RSExportType::~RSExportType() { |
| delete mSpecType; |
| } |
| |
| /************************** RSExportPrimitiveType **************************/ |
| llvm::ManagedStatic<RSExportPrimitiveType::RSSpecificTypeMapTy> |
| RSExportPrimitiveType::RSSpecificTypeMap; |
| |
| llvm::Type *RSExportPrimitiveType::RSObjectLLVMType = NULL; |
| |
| bool RSExportPrimitiveType::IsPrimitiveType(const clang::Type *T) { |
| if ((T != NULL) && (T->getTypeClass() == clang::Type::Builtin)) |
| return true; |
| else |
| return false; |
| } |
| |
| RSExportPrimitiveType::DataType |
| RSExportPrimitiveType::GetRSSpecificType(const llvm::StringRef &TypeName) { |
| if (TypeName.empty()) |
| return DataTypeUnknown; |
| |
| if (RSSpecificTypeMap->empty()) { |
| #define ENUM_RS_MATRIX_TYPE(type, cname, dim) \ |
| RSSpecificTypeMap->GetOrCreateValue(cname, DataType ## type); |
| #include "RSMatrixTypeEnums.inc" |
| #define ENUM_RS_OBJECT_TYPE(type, cname) \ |
| RSSpecificTypeMap->GetOrCreateValue(cname, DataType ## type); |
| #include "RSObjectTypeEnums.inc" |
| } |
| |
| RSSpecificTypeMapTy::const_iterator I = RSSpecificTypeMap->find(TypeName); |
| if (I == RSSpecificTypeMap->end()) |
| return DataTypeUnknown; |
| else |
| return I->getValue(); |
| } |
| |
| RSExportPrimitiveType::DataType |
| RSExportPrimitiveType::GetRSSpecificType(const clang::Type *T) { |
| T = GET_CANONICAL_TYPE(T); |
| if ((T == NULL) || (T->getTypeClass() != clang::Type::Record)) |
| return DataTypeUnknown; |
| |
| return GetRSSpecificType( RSExportType::GetTypeName(T) ); |
| } |
| |
| bool RSExportPrimitiveType::IsRSMatrixType(DataType DT) { |
| return ((DT >= FirstRSMatrixType) && (DT <= LastRSMatrixType)); |
| } |
| |
| bool RSExportPrimitiveType::IsRSObjectType(DataType DT) { |
| return ((DT >= FirstRSObjectType) && (DT <= LastRSObjectType)); |
| } |
| |
| bool RSExportPrimitiveType::IsStructureTypeWithRSObject(const clang::Type *T) { |
| bool RSObjectTypeSeen = false; |
| while (T && T->isArrayType()) { |
| T = T->getArrayElementTypeNoTypeQual(); |
| } |
| |
| const clang::RecordType *RT = T->getAsStructureType(); |
| if (!RT) { |
| return false; |
| } |
| const clang::RecordDecl *RD = RT->getDecl(); |
| RD = RD->getDefinition(); |
| for (clang::RecordDecl::field_iterator FI = RD->field_begin(), |
| FE = RD->field_end(); |
| FI != FE; |
| FI++) { |
| // We just look through all field declarations to see if we find a |
| // declaration for an RS object type (or an array of one). |
| const clang::FieldDecl *FD = *FI; |
| const clang::Type *FT = RSExportType::GetTypeOfDecl(FD); |
| while (FT && FT->isArrayType()) { |
| FT = FT->getArrayElementTypeNoTypeQual(); |
| } |
| |
| RSExportPrimitiveType::DataType DT = GetRSSpecificType(FT); |
| if (IsRSObjectType(DT)) { |
| // RS object types definitely need to be zero-initialized |
| RSObjectTypeSeen = true; |
| } else { |
| switch (DT) { |
| case RSExportPrimitiveType::DataTypeRSMatrix2x2: |
| case RSExportPrimitiveType::DataTypeRSMatrix3x3: |
| case RSExportPrimitiveType::DataTypeRSMatrix4x4: |
| // Matrix types should get zero-initialized as well |
| RSObjectTypeSeen = true; |
| break; |
| default: |
| // Ignore all other primitive types |
| break; |
| } |
| while (FT && FT->isArrayType()) { |
| FT = FT->getArrayElementTypeNoTypeQual(); |
| } |
| if (FT->isStructureType()) { |
| // Recursively handle structs of structs (even though these can't |
| // be exported, it is possible for a user to have them internally). |
| RSObjectTypeSeen |= IsStructureTypeWithRSObject(FT); |
| } |
| } |
| } |
| |
| return RSObjectTypeSeen; |
| } |
| |
| const size_t RSExportPrimitiveType::SizeOfDataTypeInBits[] = { |
| #define ENUM_RS_DATA_TYPE(type, cname, bits) \ |
| bits, |
| #include "RSDataTypeEnums.inc" |
| 0 // DataTypeMax |
| }; |
| |
| size_t RSExportPrimitiveType::GetSizeInBits(const RSExportPrimitiveType *EPT) { |
| slangAssert(((EPT->getType() > DataTypeUnknown) && |
| (EPT->getType() < DataTypeMax)) && |
| "RSExportPrimitiveType::GetSizeInBits : unknown data type"); |
| return SizeOfDataTypeInBits[ static_cast<int>(EPT->getType()) ]; |
| } |
| |
| RSExportPrimitiveType::DataType |
| RSExportPrimitiveType::GetDataType(RSContext *Context, const clang::Type *T) { |
| if (T == NULL) |
| return DataTypeUnknown; |
| |
| switch (T->getTypeClass()) { |
| case clang::Type::Builtin: { |
| const clang::BuiltinType *BT = UNSAFE_CAST_TYPE(clang::BuiltinType, T); |
| switch (BT->getKind()) { |
| #define ENUM_SUPPORT_BUILTIN_TYPE(builtin_type, type, cname) \ |
| case builtin_type: { \ |
| return DataType ## type; \ |
| } |
| #include "RSClangBuiltinEnums.inc" |
| // The size of type WChar depend on platform so we abandon the support |
| // to them. |
| default: { |
| clang::Diagnostic *Diags = Context->getDiagnostics(); |
| Diags->Report(Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "built-in type cannot be exported: '%0'")) |
| << T->getTypeClassName(); |
| break; |
| } |
| } |
| break; |
| } |
| case clang::Type::Record: { |
| // must be RS object type |
| return RSExportPrimitiveType::GetRSSpecificType(T); |
| } |
| default: { |
| clang::Diagnostic *Diags = Context->getDiagnostics(); |
| Diags->Report(Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "primitive type cannot be exported: '%0'")) |
| << T->getTypeClassName(); |
| break; |
| } |
| } |
| |
| return DataTypeUnknown; |
| } |
| |
| RSExportPrimitiveType |
| *RSExportPrimitiveType::Create(RSContext *Context, |
| const clang::Type *T, |
| const llvm::StringRef &TypeName, |
| DataKind DK, |
| bool Normalized) { |
| DataType DT = GetDataType(Context, T); |
| |
| if ((DT == DataTypeUnknown) || TypeName.empty()) |
| return NULL; |
| else |
| return new RSExportPrimitiveType(Context, ExportClassPrimitive, TypeName, |
| DT, DK, Normalized); |
| } |
| |
| RSExportPrimitiveType *RSExportPrimitiveType::Create(RSContext *Context, |
| const clang::Type *T, |
| DataKind DK) { |
| llvm::StringRef TypeName; |
| if (RSExportType::NormalizeType(T, TypeName, NULL, NULL, NULL) && |
| IsPrimitiveType(T)) { |
| return Create(Context, T, TypeName, DK); |
| } else { |
| return NULL; |
| } |
| } |
| |
| const llvm::Type *RSExportPrimitiveType::convertToLLVMType() const { |
| llvm::LLVMContext &C = getRSContext()->getLLVMContext(); |
| |
| if (isRSObjectType()) { |
| // struct { |
| // int *p; |
| // } __attribute__((packed, aligned(pointer_size))) |
| // |
| // which is |
| // |
| // <{ [1 x i32] }> in LLVM |
| // |
| if (RSObjectLLVMType == NULL) { |
| std::vector<const llvm::Type *> Elements; |
| Elements.push_back(llvm::ArrayType::get(llvm::Type::getInt32Ty(C), 1)); |
| RSObjectLLVMType = llvm::StructType::get(C, Elements, true); |
| } |
| return RSObjectLLVMType; |
| } |
| |
| switch (mType) { |
| case DataTypeFloat32: { |
| return llvm::Type::getFloatTy(C); |
| break; |
| } |
| case DataTypeFloat64: { |
| return llvm::Type::getDoubleTy(C); |
| break; |
| } |
| case DataTypeBoolean: { |
| return llvm::Type::getInt1Ty(C); |
| break; |
| } |
| case DataTypeSigned8: |
| case DataTypeUnsigned8: { |
| return llvm::Type::getInt8Ty(C); |
| break; |
| } |
| case DataTypeSigned16: |
| case DataTypeUnsigned16: |
| case DataTypeUnsigned565: |
| case DataTypeUnsigned5551: |
| case DataTypeUnsigned4444: { |
| return llvm::Type::getInt16Ty(C); |
| break; |
| } |
| case DataTypeSigned32: |
| case DataTypeUnsigned32: { |
| return llvm::Type::getInt32Ty(C); |
| break; |
| } |
| case DataTypeSigned64: |
| case DataTypeUnsigned64: { |
| return llvm::Type::getInt64Ty(C); |
| break; |
| } |
| default: { |
| slangAssert(false && "Unknown data type"); |
| } |
| } |
| |
| return NULL; |
| } |
| |
| union RSType *RSExportPrimitiveType::convertToSpecType() const { |
| llvm::OwningPtr<union RSType> ST(new union RSType); |
| RS_TYPE_SET_CLASS(ST, RS_TC_Primitive); |
| // enum RSExportPrimitiveType::DataType is synced with enum RSDataType in |
| // slang_rs_type_spec.h |
| RS_PRIMITIVE_TYPE_SET_DATA_TYPE(ST, getType()); |
| return ST.take(); |
| } |
| |
| bool RSExportPrimitiveType::equals(const RSExportable *E) const { |
| CHECK_PARENT_EQUALITY(RSExportType, E); |
| return (static_cast<const RSExportPrimitiveType*>(E)->getType() == getType()); |
| } |
| |
| /**************************** RSExportPointerType ****************************/ |
| |
| RSExportPointerType |
| *RSExportPointerType::Create(RSContext *Context, |
| const clang::PointerType *PT, |
| const llvm::StringRef &TypeName) { |
| const clang::Type *PointeeType = GET_POINTEE_TYPE(PT); |
| const RSExportType *PointeeET; |
| |
| if (PointeeType->getTypeClass() != clang::Type::Pointer) { |
| PointeeET = RSExportType::Create(Context, PointeeType); |
| } else { |
| // Double or higher dimension of pointer, export as int* |
| PointeeET = RSExportPrimitiveType::Create(Context, |
| Context->getASTContext().IntTy.getTypePtr()); |
| } |
| |
| if (PointeeET == NULL) { |
| // Error diagnostic is emitted for corresponding pointee type |
| return NULL; |
| } |
| |
| return new RSExportPointerType(Context, TypeName, PointeeET); |
| } |
| |
| const llvm::Type *RSExportPointerType::convertToLLVMType() const { |
| const llvm::Type *PointeeType = mPointeeType->getLLVMType(); |
| return llvm::PointerType::getUnqual(PointeeType); |
| } |
| |
| union RSType *RSExportPointerType::convertToSpecType() const { |
| llvm::OwningPtr<union RSType> ST(new union RSType); |
| |
| RS_TYPE_SET_CLASS(ST, RS_TC_Pointer); |
| RS_POINTER_TYPE_SET_POINTEE_TYPE(ST, getPointeeType()->getSpecType()); |
| |
| if (RS_POINTER_TYPE_GET_POINTEE_TYPE(ST) != NULL) |
| return ST.take(); |
| else |
| return NULL; |
| } |
| |
| bool RSExportPointerType::keep() { |
| if (!RSExportType::keep()) |
| return false; |
| const_cast<RSExportType*>(mPointeeType)->keep(); |
| return true; |
| } |
| |
| bool RSExportPointerType::equals(const RSExportable *E) const { |
| CHECK_PARENT_EQUALITY(RSExportType, E); |
| return (static_cast<const RSExportPointerType*>(E) |
| ->getPointeeType()->equals(getPointeeType())); |
| } |
| |
| /***************************** RSExportVectorType *****************************/ |
| llvm::StringRef |
| RSExportVectorType::GetTypeName(const clang::ExtVectorType *EVT) { |
| const clang::Type *ElementType = GET_EXT_VECTOR_ELEMENT_TYPE(EVT); |
| |
| if ((ElementType->getTypeClass() != clang::Type::Builtin)) |
| return llvm::StringRef(); |
| |
| const clang::BuiltinType *BT = UNSAFE_CAST_TYPE(clang::BuiltinType, |
| ElementType); |
| if ((EVT->getNumElements() < 1) || |
| (EVT->getNumElements() > 4)) |
| return llvm::StringRef(); |
| |
| switch (BT->getKind()) { |
| // Compiler is smart enough to optimize following *big if branches* since |
| // they all become "constant comparison" after macro expansion |
| #define ENUM_SUPPORT_BUILTIN_TYPE(builtin_type, type, cname) \ |
| case builtin_type: { \ |
| const char *Name[] = { cname"2", cname"3", cname"4" }; \ |
| return Name[EVT->getNumElements() - 2]; \ |
| break; \ |
| } |
| #include "RSClangBuiltinEnums.inc" |
| default: { |
| return llvm::StringRef(); |
| } |
| } |
| } |
| |
| RSExportVectorType *RSExportVectorType::Create(RSContext *Context, |
| const clang::ExtVectorType *EVT, |
| const llvm::StringRef &TypeName, |
| DataKind DK, |
| bool Normalized) { |
| slangAssert(EVT != NULL && EVT->getTypeClass() == clang::Type::ExtVector); |
| |
| const clang::Type *ElementType = GET_EXT_VECTOR_ELEMENT_TYPE(EVT); |
| RSExportPrimitiveType::DataType DT = |
| RSExportPrimitiveType::GetDataType(Context, ElementType); |
| |
| if (DT != RSExportPrimitiveType::DataTypeUnknown) |
| return new RSExportVectorType(Context, |
| TypeName, |
| DT, |
| DK, |
| Normalized, |
| EVT->getNumElements()); |
| else |
| return NULL; |
| } |
| |
| const llvm::Type *RSExportVectorType::convertToLLVMType() const { |
| const llvm::Type *ElementType = RSExportPrimitiveType::convertToLLVMType(); |
| return llvm::VectorType::get(ElementType, getNumElement()); |
| } |
| |
| union RSType *RSExportVectorType::convertToSpecType() const { |
| llvm::OwningPtr<union RSType> ST(new union RSType); |
| |
| RS_TYPE_SET_CLASS(ST, RS_TC_Vector); |
| RS_VECTOR_TYPE_SET_ELEMENT_TYPE(ST, getType()); |
| RS_VECTOR_TYPE_SET_VECTOR_SIZE(ST, getNumElement()); |
| |
| return ST.take(); |
| } |
| |
| bool RSExportVectorType::equals(const RSExportable *E) const { |
| CHECK_PARENT_EQUALITY(RSExportPrimitiveType, E); |
| return (static_cast<const RSExportVectorType*>(E)->getNumElement() |
| == getNumElement()); |
| } |
| |
| /***************************** RSExportMatrixType *****************************/ |
| RSExportMatrixType *RSExportMatrixType::Create(RSContext *Context, |
| const clang::RecordType *RT, |
| const llvm::StringRef &TypeName, |
| unsigned Dim) { |
| slangAssert((RT != NULL) && (RT->getTypeClass() == clang::Type::Record)); |
| slangAssert((Dim > 1) && "Invalid dimension of matrix"); |
| |
| // Check whether the struct rs_matrix is in our expected form (but assume it's |
| // correct if we're not sure whether it's correct or not) |
| const clang::RecordDecl* RD = RT->getDecl(); |
| RD = RD->getDefinition(); |
| if (RD != NULL) { |
| clang::Diagnostic *Diags = Context->getDiagnostics(); |
| const clang::SourceManager *SM = Context->getSourceManager(); |
| // Find definition, perform further examination |
| if (RD->field_empty()) { |
| Diags->Report(clang::FullSourceLoc(RD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "invalid matrix struct: must have 1 field for saving " |
| "values: '%0'")) |
| << RD->getName(); |
| return NULL; |
| } |
| |
| clang::RecordDecl::field_iterator FIT = RD->field_begin(); |
| const clang::FieldDecl *FD = *FIT; |
| const clang::Type *FT = RSExportType::GetTypeOfDecl(FD); |
| if ((FT == NULL) || (FT->getTypeClass() != clang::Type::ConstantArray)) { |
| Diags->Report(clang::FullSourceLoc(RD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "invalid matrix struct: first field should be an " |
| "array with constant size: '%0'")) |
| << RD->getName(); |
| return NULL; |
| } |
| const clang::ConstantArrayType *CAT = |
| static_cast<const clang::ConstantArrayType *>(FT); |
| const clang::Type *ElementType = GET_CONSTANT_ARRAY_ELEMENT_TYPE(CAT); |
| if ((ElementType == NULL) || |
| (ElementType->getTypeClass() != clang::Type::Builtin) || |
| (static_cast<const clang::BuiltinType *>(ElementType)->getKind() |
| != clang::BuiltinType::Float)) { |
| Diags->Report(clang::FullSourceLoc(RD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "invalid matrix struct: first field should be a " |
| "float array: '%0'")) |
| << RD->getName(); |
| return NULL; |
| } |
| |
| if (CAT->getSize() != Dim * Dim) { |
| Diags->Report(clang::FullSourceLoc(RD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "invalid matrix struct: first field should be an " |
| "array with size %0: '%1'")) |
| << Dim * Dim |
| << RD->getName(); |
| return NULL; |
| } |
| |
| FIT++; |
| if (FIT != RD->field_end()) { |
| Diags->Report(clang::FullSourceLoc(RD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "invalid matrix struct: must have exactly 1 field: " |
| "'%0'")) |
| << RD->getName(); |
| return NULL; |
| } |
| } |
| |
| return new RSExportMatrixType(Context, TypeName, Dim); |
| } |
| |
| const llvm::Type *RSExportMatrixType::convertToLLVMType() const { |
| // Construct LLVM type: |
| // struct { |
| // float X[mDim * mDim]; |
| // } |
| |
| llvm::LLVMContext &C = getRSContext()->getLLVMContext(); |
| llvm::ArrayType *X = llvm::ArrayType::get(llvm::Type::getFloatTy(C), |
| mDim * mDim); |
| return llvm::StructType::get(C, X, NULL); |
| } |
| |
| union RSType *RSExportMatrixType::convertToSpecType() const { |
| llvm::OwningPtr<union RSType> ST(new union RSType); |
| RS_TYPE_SET_CLASS(ST, RS_TC_Matrix); |
| switch (getDim()) { |
| case 2: RS_MATRIX_TYPE_SET_DATA_TYPE(ST, RS_DT_RSMatrix2x2); break; |
| case 3: RS_MATRIX_TYPE_SET_DATA_TYPE(ST, RS_DT_RSMatrix3x3); break; |
| case 4: RS_MATRIX_TYPE_SET_DATA_TYPE(ST, RS_DT_RSMatrix4x4); break; |
| default: slangAssert(false && "Matrix type with unsupported dimension."); |
| } |
| return ST.take(); |
| } |
| |
| bool RSExportMatrixType::equals(const RSExportable *E) const { |
| CHECK_PARENT_EQUALITY(RSExportType, E); |
| return (static_cast<const RSExportMatrixType*>(E)->getDim() == getDim()); |
| } |
| |
| /************************* RSExportConstantArrayType *************************/ |
| RSExportConstantArrayType |
| *RSExportConstantArrayType::Create(RSContext *Context, |
| const clang::ConstantArrayType *CAT) { |
| slangAssert(CAT != NULL && CAT->getTypeClass() == clang::Type::ConstantArray); |
| |
| slangAssert((CAT->getSize().getActiveBits() < 32) && "array too large"); |
| |
| unsigned Size = static_cast<unsigned>(CAT->getSize().getZExtValue()); |
| slangAssert((Size > 0) && "Constant array should have size greater than 0"); |
| |
| const clang::Type *ElementType = GET_CONSTANT_ARRAY_ELEMENT_TYPE(CAT); |
| RSExportType *ElementET = RSExportType::Create(Context, ElementType); |
| |
| if (ElementET == NULL) { |
| return NULL; |
| } |
| |
| return new RSExportConstantArrayType(Context, |
| ElementET, |
| Size); |
| } |
| |
| const llvm::Type *RSExportConstantArrayType::convertToLLVMType() const { |
| return llvm::ArrayType::get(mElementType->getLLVMType(), getSize()); |
| } |
| |
| union RSType *RSExportConstantArrayType::convertToSpecType() const { |
| llvm::OwningPtr<union RSType> ST(new union RSType); |
| |
| RS_TYPE_SET_CLASS(ST, RS_TC_ConstantArray); |
| RS_CONSTANT_ARRAY_TYPE_SET_ELEMENT_TYPE( |
| ST, getElementType()->getSpecType()); |
| RS_CONSTANT_ARRAY_TYPE_SET_ELEMENT_SIZE(ST, getSize()); |
| |
| if (RS_CONSTANT_ARRAY_TYPE_GET_ELEMENT_TYPE(ST) != NULL) |
| return ST.take(); |
| else |
| return NULL; |
| } |
| |
| bool RSExportConstantArrayType::keep() { |
| if (!RSExportType::keep()) |
| return false; |
| const_cast<RSExportType*>(mElementType)->keep(); |
| return true; |
| } |
| |
| bool RSExportConstantArrayType::equals(const RSExportable *E) const { |
| CHECK_PARENT_EQUALITY(RSExportType, E); |
| const RSExportConstantArrayType *RHS = |
| static_cast<const RSExportConstantArrayType*>(E); |
| return ((getSize() == RHS->getSize()) && |
| (getElementType()->equals(RHS->getElementType()))); |
| } |
| |
| /**************************** RSExportRecordType ****************************/ |
| RSExportRecordType *RSExportRecordType::Create(RSContext *Context, |
| const clang::RecordType *RT, |
| const llvm::StringRef &TypeName, |
| bool mIsArtificial) { |
| slangAssert(RT != NULL && RT->getTypeClass() == clang::Type::Record); |
| |
| const clang::RecordDecl *RD = RT->getDecl(); |
| slangAssert(RD->isStruct()); |
| |
| RD = RD->getDefinition(); |
| if (RD == NULL) { |
| slangAssert(false && "struct is not defined in this module"); |
| return NULL; |
| } |
| |
| // Struct layout construct by clang. We rely on this for obtaining the |
| // alloc size of a struct and offset of every field in that struct. |
| const clang::ASTRecordLayout *RL = |
| &Context->getASTContext().getASTRecordLayout(RD); |
| slangAssert((RL != NULL) && |
| "Failed to retrieve the struct layout from Clang."); |
| |
| RSExportRecordType *ERT = |
| new RSExportRecordType(Context, |
| TypeName, |
| RD->hasAttr<clang::PackedAttr>(), |
| mIsArtificial, |
| (RL->getSize() >> 3)); |
| unsigned int Index = 0; |
| |
| for (clang::RecordDecl::field_iterator FI = RD->field_begin(), |
| FE = RD->field_end(); |
| FI != FE; |
| FI++, Index++) { |
| clang::Diagnostic *Diags = Context->getDiagnostics(); |
| const clang::SourceManager *SM = Context->getSourceManager(); |
| |
| // FIXME: All fields should be primitive type |
| slangAssert((*FI)->getKind() == clang::Decl::Field); |
| clang::FieldDecl *FD = *FI; |
| |
| if (FD->isBitField()) { |
| delete ERT; |
| return NULL; |
| } |
| |
| // Type |
| RSExportType *ET = RSExportElement::CreateFromDecl(Context, FD); |
| |
| if (ET != NULL) { |
| ERT->mFields.push_back( |
| new Field(ET, FD->getName(), ERT, |
| static_cast<size_t>(RL->getFieldOffset(Index) >> 3))); |
| } else { |
| Diags->Report(clang::FullSourceLoc(RD->getLocation(), *SM), |
| Diags->getCustomDiagID(clang::Diagnostic::Error, |
| "field type cannot be exported: '%0.%1'")) |
| << RD->getName() |
| << FD->getName(); |
| delete ERT; |
| return NULL; |
| } |
| } |
| |
| return ERT; |
| } |
| |
| const llvm::Type *RSExportRecordType::convertToLLVMType() const { |
| // Create an opaque type since struct may reference itself recursively. |
| llvm::PATypeHolder ResultHolder = |
| llvm::OpaqueType::get(getRSContext()->getLLVMContext()); |
| setAbstractLLVMType(ResultHolder.get()); |
| |
| std::vector<const llvm::Type*> FieldTypes; |
| |
| for (const_field_iterator FI = fields_begin(), FE = fields_end(); |
| FI != FE; |
| FI++) { |
| const Field *F = *FI; |
| const RSExportType *FET = F->getType(); |
| |
| FieldTypes.push_back(FET->getLLVMType()); |
| } |
| |
| llvm::StructType *ST = llvm::StructType::get(getRSContext()->getLLVMContext(), |
| FieldTypes, |
| mIsPacked); |
| if (ST != NULL) |
| static_cast<llvm::OpaqueType*>(ResultHolder.get()) |
| ->refineAbstractTypeTo(ST); |
| else |
| return NULL; |
| return ResultHolder.get(); |
| } |
| |
| union RSType *RSExportRecordType::convertToSpecType() const { |
| unsigned NumFields = getFields().size(); |
| unsigned AllocSize = sizeof(union RSType) + |
| sizeof(struct RSRecordField) * NumFields; |
| llvm::OwningPtr<union RSType> ST( |
| reinterpret_cast<union RSType*>(operator new(AllocSize))); |
| |
| ::memset(ST.get(), 0, AllocSize); |
| |
| RS_TYPE_SET_CLASS(ST, RS_TC_Record); |
| RS_RECORD_TYPE_SET_NAME(ST, getName().c_str()); |
| RS_RECORD_TYPE_SET_NUM_FIELDS(ST, NumFields); |
| |
| setSpecTypeTemporarily(ST.get()); |
| |
| unsigned FieldIdx = 0; |
| for (const_field_iterator FI = fields_begin(), FE = fields_end(); |
| FI != FE; |
| FI++, FieldIdx++) { |
| const Field *F = *FI; |
| |
| RS_RECORD_TYPE_SET_FIELD_NAME(ST, FieldIdx, F->getName().c_str()); |
| RS_RECORD_TYPE_SET_FIELD_TYPE(ST, FieldIdx, F->getType()->getSpecType()); |
| |
| enum RSDataKind DK = RS_DK_User; |
| if ((F->getType()->getClass() == ExportClassPrimitive) || |
| (F->getType()->getClass() == ExportClassVector)) { |
| const RSExportPrimitiveType *EPT = |
| static_cast<const RSExportPrimitiveType*>(F->getType()); |
| // enum RSExportPrimitiveType::DataKind is synced with enum RSDataKind in |
| // slang_rs_type_spec.h |
| DK = static_cast<enum RSDataKind>(EPT->getKind()); |
| } |
| RS_RECORD_TYPE_SET_FIELD_DATA_KIND(ST, FieldIdx, DK); |
| } |
| |
| // TODO(slang): Check whether all fields were created normally. |
| |
| return ST.take(); |
| } |
| |
| bool RSExportRecordType::keep() { |
| if (!RSExportType::keep()) |
| return false; |
| for (std::list<const Field*>::iterator I = mFields.begin(), |
| E = mFields.end(); |
| I != E; |
| I++) { |
| const_cast<RSExportType*>((*I)->getType())->keep(); |
| } |
| return true; |
| } |
| |
| bool RSExportRecordType::equals(const RSExportable *E) const { |
| CHECK_PARENT_EQUALITY(RSExportType, E); |
| |
| const RSExportRecordType *ERT = static_cast<const RSExportRecordType*>(E); |
| |
| if (ERT->getFields().size() != getFields().size()) |
| return false; |
| |
| const_field_iterator AI = fields_begin(), BI = ERT->fields_begin(); |
| |
| for (unsigned i = 0, e = getFields().size(); i != e; i++) { |
| if (!(*AI)->getType()->equals((*BI)->getType())) |
| return false; |
| AI++; |
| BI++; |
| } |
| |
| return true; |
| } |
| |
| } // namespace slang |