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Diffstat (limited to 'contrib/llvm/lib/Analysis/DIBuilder.cpp')
| -rw-r--r-- | contrib/llvm/lib/Analysis/DIBuilder.cpp | 801 |
1 files changed, 801 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Analysis/DIBuilder.cpp b/contrib/llvm/lib/Analysis/DIBuilder.cpp new file mode 100644 index 0000000..c1072df --- /dev/null +++ b/contrib/llvm/lib/Analysis/DIBuilder.cpp @@ -0,0 +1,801 @@ +//===--- DIBuilder.cpp - Debug Information Builder ------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file implements the DIBuilder. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Analysis/DIBuilder.h" +#include "llvm/Analysis/DebugInfo.h" +#include "llvm/Constants.h" +#include "llvm/IntrinsicInst.h" +#include "llvm/Module.h" +#include "llvm/ADT/STLExtras.h" +#include "llvm/Support/Dwarf.h" + +using namespace llvm; +using namespace llvm::dwarf; + +static Constant *GetTagConstant(LLVMContext &VMContext, unsigned Tag) { + assert((Tag & LLVMDebugVersionMask) == 0 && + "Tag too large for debug encoding!"); + return ConstantInt::get(Type::getInt32Ty(VMContext), Tag | LLVMDebugVersion); +} + +DIBuilder::DIBuilder(Module &m) + : M(m), VMContext(M.getContext()), TheCU(0), DeclareFn(0), ValueFn(0) {} + +/// CreateCompileUnit - A CompileUnit provides an anchor for all debugging +/// information generated during this instance of compilation. +void DIBuilder::CreateCompileUnit(unsigned Lang, StringRef Filename, + StringRef Directory, StringRef Producer, + bool isOptimized, StringRef Flags, + unsigned RunTimeVer) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_compile_unit), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + ConstantInt::get(Type::getInt32Ty(VMContext), Lang), + MDString::get(VMContext, Filename), + MDString::get(VMContext, Directory), + MDString::get(VMContext, Producer), + // Deprecate isMain field. + ConstantInt::get(Type::getInt1Ty(VMContext), true), // isMain + ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized), + MDString::get(VMContext, Flags), + ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer) + }; + TheCU = DICompileUnit(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateFile - Create a file descriptor to hold debugging information +/// for a file. +DIFile DIBuilder::CreateFile(StringRef Filename, StringRef Directory) { + assert(TheCU && "Unable to create DW_TAG_file_type without CompileUnit"); + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_file_type), + MDString::get(VMContext, Filename), + MDString::get(VMContext, Directory), + TheCU + }; + return DIFile(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateEnumerator - Create a single enumerator value. +DIEnumerator DIBuilder::CreateEnumerator(StringRef Name, uint64_t Val) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_enumerator), + MDString::get(VMContext, Name), + ConstantInt::get(Type::getInt64Ty(VMContext), Val) + }; + return DIEnumerator(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateBasicType - Create debugging information entry for a basic +/// type, e.g 'char'. +DIType DIBuilder::CreateBasicType(StringRef Name, uint64_t SizeInBits, + uint64_t AlignInBits, + unsigned Encoding) { + // Basic types are encoded in DIBasicType format. Line number, filename, + // offset and flags are always empty here. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_base_type), + TheCU, + MDString::get(VMContext, Name), + NULL, // Filename + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line + ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags; + ConstantInt::get(Type::getInt32Ty(VMContext), Encoding) + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateQaulifiedType - Create debugging information entry for a qualified +/// type, e.g. 'const int'. +DIType DIBuilder::CreateQualifiedType(unsigned Tag, DIType FromTy) { + // Qualified types are encoded in DIDerivedType format. + Value *Elts[] = { + GetTagConstant(VMContext, Tag), + TheCU, + MDString::get(VMContext, StringRef()), // Empty name. + NULL, // Filename + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags + FromTy + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreatePointerType - Create debugging information entry for a pointer. +DIType DIBuilder::CreatePointerType(DIType PointeeTy, uint64_t SizeInBits, + uint64_t AlignInBits, StringRef Name) { + // Pointer types are encoded in DIDerivedType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type), + TheCU, + MDString::get(VMContext, Name), + NULL, // Filename + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line + ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags + PointeeTy + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateReferenceType - Create debugging information entry for a reference. +DIType DIBuilder::CreateReferenceType(DIType RTy) { + // References are encoded in DIDerivedType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_reference_type), + TheCU, + NULL, // Name + NULL, // Filename + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags + RTy + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateTypedef - Create debugging information entry for a typedef. +DIType DIBuilder::CreateTypedef(DIType Ty, StringRef Name, DIFile File, + unsigned LineNo) { + // typedefs are encoded in DIDerivedType format. + assert(Ty.Verify() && "Invalid typedef type!"); + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_typedef), + Ty.getContext(), + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags + Ty + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateFriend - Create debugging information entry for a 'friend'. +DIType DIBuilder::CreateFriend(DIType Ty, DIType FriendTy) { + // typedefs are encoded in DIDerivedType format. + assert(Ty.Verify() && "Invalid type!"); + assert(FriendTy.Verify() && "Invalid friend type!"); + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_friend), + Ty, + NULL, // Name + Ty.getFile(), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags + FriendTy + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateInheritance - Create debugging information entry to establish +/// inheritnace relationship between two types. +DIType DIBuilder::CreateInheritance(DIType Ty, DIType BaseTy, + uint64_t BaseOffset, unsigned Flags) { + // TAG_inheritance is encoded in DIDerivedType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_inheritance), + Ty, + NULL, // Name + Ty.getFile(), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size + ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align + ConstantInt::get(Type::getInt64Ty(VMContext), BaseOffset), + ConstantInt::get(Type::getInt32Ty(VMContext), Flags), + BaseTy + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateMemberType - Create debugging information entry for a member. +DIType DIBuilder::CreateMemberType(StringRef Name, + DIFile File, unsigned LineNumber, + uint64_t SizeInBits, uint64_t AlignInBits, + uint64_t OffsetInBits, unsigned Flags, + DIType Ty) { + // TAG_member is encoded in DIDerivedType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_member), + File, // Or TheCU ? Ty ? + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), + ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits), + ConstantInt::get(Type::getInt32Ty(VMContext), Flags), + Ty + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateClassType - Create debugging information entry for a class. +DIType DIBuilder::CreateClassType(DIDescriptor Context, StringRef Name, + DIFile File, unsigned LineNumber, + uint64_t SizeInBits, uint64_t AlignInBits, + uint64_t OffsetInBits, unsigned Flags, + DIType DerivedFrom, DIArray Elements, + MDNode *VTableHoder, MDNode *TemplateParams) { + // TAG_class_type is encoded in DICompositeType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_class_type), + Context, + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), + ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits), + ConstantInt::get(Type::getInt32Ty(VMContext), Flags), + DerivedFrom, + Elements, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + VTableHoder, + TemplateParams + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateTemplateTypeParameter - Create debugging information for template +/// type parameter. +DITemplateTypeParameter +DIBuilder::CreateTemplateTypeParameter(DIDescriptor Context, StringRef Name, + DIType Ty, MDNode *File, unsigned LineNo, + unsigned ColumnNo) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_template_type_parameter), + Context, + MDString::get(VMContext, Name), + Ty, + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), + ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo) + }; + return DITemplateTypeParameter(MDNode::get(VMContext, &Elts[0], + array_lengthof(Elts))); +} + +/// CreateTemplateValueParameter - Create debugging information for template +/// value parameter. +DITemplateValueParameter +DIBuilder::CreateTemplateValueParameter(DIDescriptor Context, StringRef Name, + DIType Ty, uint64_t Val, + MDNode *File, unsigned LineNo, + unsigned ColumnNo) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_template_value_parameter), + Context, + MDString::get(VMContext, Name), + Ty, + ConstantInt::get(Type::getInt64Ty(VMContext), Val), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), + ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo) + }; + return DITemplateValueParameter(MDNode::get(VMContext, &Elts[0], + array_lengthof(Elts))); +} + +/// CreateStructType - Create debugging information entry for a struct. +DIType DIBuilder::CreateStructType(DIDescriptor Context, StringRef Name, + DIFile File, unsigned LineNumber, + uint64_t SizeInBits, uint64_t AlignInBits, + unsigned Flags, DIArray Elements, + unsigned RunTimeLang) { + // TAG_structure_type is encoded in DICompositeType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_structure_type), + Context, + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), + ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), Flags), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + Elements, + ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateUnionType - Create debugging information entry for an union. +DIType DIBuilder::CreateUnionType(DIDescriptor Scope, StringRef Name, + DIFile File, + unsigned LineNumber, uint64_t SizeInBits, + uint64_t AlignInBits, unsigned Flags, + DIArray Elements, unsigned RunTimeLang) { + // TAG_union_type is encoded in DICompositeType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_union_type), + Scope, + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), + ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), Flags), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + Elements, + ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateSubroutineType - Create subroutine type. +DIType DIBuilder::CreateSubroutineType(DIFile File, DIArray ParameterTypes) { + // TAG_subroutine_type is encoded in DICompositeType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type), + File, + MDString::get(VMContext, ""), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt64Ty(VMContext), 0), + ConstantInt::get(Type::getInt64Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + ParameterTypes, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateEnumerationType - Create debugging information entry for an +/// enumeration. +DIType DIBuilder::CreateEnumerationType(DIDescriptor Scope, StringRef Name, + DIFile File, unsigned LineNumber, + uint64_t SizeInBits, + uint64_t AlignInBits, DIArray Elements) { + // TAG_enumeration_type is encoded in DICompositeType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type), + Scope, + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), + ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + Elements, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + }; + MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)); + NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.enum"); + NMD->addOperand(Node); + return DIType(Node); +} + +/// CreateArrayType - Create debugging information entry for an array. +DIType DIBuilder::CreateArrayType(uint64_t Size, uint64_t AlignInBits, + DIType Ty, DIArray Subscripts) { + // TAG_array_type is encoded in DICompositeType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_array_type), + TheCU, + MDString::get(VMContext, ""), + TheCU, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt64Ty(VMContext), Size), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + Ty, + Subscripts, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateVectorType - Create debugging information entry for a vector. +DIType DIBuilder::CreateVectorType(uint64_t Size, uint64_t AlignInBits, + DIType Ty, DIArray Subscripts) { + // TAG_vector_type is encoded in DICompositeType format. + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_vector_type), + TheCU, + MDString::get(VMContext, ""), + TheCU, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt64Ty(VMContext), Size), + ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + Ty, + Subscripts, + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + }; + return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// CreateArtificialType - Create a new DIType with "artificial" flag set. +DIType DIBuilder::CreateArtificialType(DIType Ty) { + if (Ty.isArtificial()) + return Ty; + + SmallVector<Value *, 9> Elts; + MDNode *N = Ty; + assert (N && "Unexpected input DIType!"); + for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) { + if (Value *V = N->getOperand(i)) + Elts.push_back(V); + else + Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext))); + } + + unsigned CurFlags = Ty.getFlags(); + CurFlags = CurFlags | DIType::FlagArtificial; + + // Flags are stored at this slot. + Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags); + + return DIType(MDNode::get(VMContext, Elts.data(), Elts.size())); +} + +/// RetainType - Retain DIType in a module even if it is not referenced +/// through debug info anchors. +void DIBuilder::RetainType(DIType T) { + NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.ty"); + NMD->addOperand(T); +} + +/// CreateUnspecifiedParameter - Create unspeicified type descriptor +/// for the subroutine type. +DIDescriptor DIBuilder::CreateUnspecifiedParameter() { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_parameters) + }; + return DIDescriptor(MDNode::get(VMContext, &Elts[0], 1)); +} + +/// CreateTemporaryType - Create a temporary forward-declared type. +DIType DIBuilder::CreateTemporaryType() { + // Give the temporary MDNode a tag. It doesn't matter what tag we + // use here as long as DIType accepts it. + Value *Elts[] = { GetTagConstant(VMContext, DW_TAG_base_type) }; + MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts)); + return DIType(Node); +} + +/// CreateTemporaryType - Create a temporary forward-declared type. +DIType DIBuilder::CreateTemporaryType(DIFile F) { + // Give the temporary MDNode a tag. It doesn't matter what tag we + // use here as long as DIType accepts it. + Value *Elts[] = { + GetTagConstant(VMContext, DW_TAG_base_type), + F.getCompileUnit(), + NULL, + F + }; + MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts)); + return DIType(Node); +} + +/// GetOrCreateArray - Get a DIArray, create one if required. +DIArray DIBuilder::GetOrCreateArray(Value *const *Elements, unsigned NumElements) { + if (NumElements == 0) { + Value *Null = llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)); + return DIArray(MDNode::get(VMContext, &Null, 1)); + } + return DIArray(MDNode::get(VMContext, Elements, NumElements)); +} + +/// GetOrCreateSubrange - Create a descriptor for a value range. This +/// implicitly uniques the values returned. +DISubrange DIBuilder::GetOrCreateSubrange(int64_t Lo, int64_t Hi) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type), + ConstantInt::get(Type::getInt64Ty(VMContext), Lo), + ConstantInt::get(Type::getInt64Ty(VMContext), Hi) + }; + + return DISubrange(MDNode::get(VMContext, &Elts[0], 3)); +} + +/// CreateGlobalVariable - Create a new descriptor for the specified global. +DIGlobalVariable DIBuilder:: +CreateGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber, + DIType Ty, bool isLocalToUnit, llvm::Value *Val) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_variable), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + TheCU, + MDString::get(VMContext, Name), + MDString::get(VMContext, Name), + MDString::get(VMContext, Name), + F, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), + Ty, + ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit), + ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/ + Val + }; + MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)); + // Create a named metadata so that we do not lose this mdnode. + NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv"); + NMD->addOperand(Node); + return DIGlobalVariable(Node); +} + +/// CreateStaticVariable - Create a new descriptor for the specified static +/// variable. +DIGlobalVariable DIBuilder:: +CreateStaticVariable(DIDescriptor Context, StringRef Name, + StringRef LinkageName, DIFile F, unsigned LineNumber, + DIType Ty, bool isLocalToUnit, llvm::Value *Val) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_variable), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + Context, + MDString::get(VMContext, Name), + MDString::get(VMContext, Name), + MDString::get(VMContext, LinkageName), + F, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber), + Ty, + ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit), + ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/ + Val + }; + MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)); + // Create a named metadata so that we do not lose this mdnode. + NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv"); + NMD->addOperand(Node); + return DIGlobalVariable(Node); +} + +/// CreateVariable - Create a new descriptor for the specified variable. +DIVariable DIBuilder::CreateLocalVariable(unsigned Tag, DIDescriptor Scope, + StringRef Name, DIFile File, + unsigned LineNo, DIType Ty, + bool AlwaysPreserve, unsigned Flags) { + Value *Elts[] = { + GetTagConstant(VMContext, Tag), + Scope, + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), + Ty, + ConstantInt::get(Type::getInt32Ty(VMContext), Flags) + }; + MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)); + if (AlwaysPreserve) { + // The optimizer may remove local variable. If there is an interest + // to preserve variable info in such situation then stash it in a + // named mdnode. + DISubprogram Fn(getDISubprogram(Scope)); + StringRef FName = "fn"; + if (Fn.getFunction()) + FName = Fn.getFunction()->getName(); + char One = '\1'; + if (FName.startswith(StringRef(&One, 1))) + FName = FName.substr(1); + NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, FName); + FnLocals->addOperand(Node); + } + return DIVariable(Node); +} + +/// CreateComplexVariable - Create a new descriptor for the specified variable +/// which has a complex address expression for its address. +DIVariable DIBuilder::CreateComplexVariable(unsigned Tag, DIDescriptor Scope, + StringRef Name, DIFile F, + unsigned LineNo, + DIType Ty, Value *const *Addr, + unsigned NumAddr) { + SmallVector<Value *, 15> Elts; + Elts.push_back(GetTagConstant(VMContext, Tag)); + Elts.push_back(Scope); + Elts.push_back(MDString::get(VMContext, Name)); + Elts.push_back(F); + Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)); + Elts.push_back(Ty); + Elts.append(Addr, Addr+NumAddr); + + return DIVariable(MDNode::get(VMContext, Elts.data(), Elts.size())); +} + +/// CreateFunction - Create a new descriptor for the specified function. +DISubprogram DIBuilder::CreateFunction(DIDescriptor Context, + StringRef Name, + StringRef LinkageName, + DIFile File, unsigned LineNo, + DIType Ty, + bool isLocalToUnit, bool isDefinition, + unsigned Flags, bool isOptimized, + Function *Fn) { + + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_subprogram), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + Context, + MDString::get(VMContext, Name), + MDString::get(VMContext, Name), + MDString::get(VMContext, LinkageName), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), + Ty, + ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit), + ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + ConstantInt::get(Type::getInt32Ty(VMContext), 0), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + ConstantInt::get(Type::getInt32Ty(VMContext), Flags), + ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized), + Fn + }; + MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)); + + // Create a named metadata so that we do not lose this mdnode. + NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp"); + NMD->addOperand(Node); + return DISubprogram(Node); +} + +/// CreateMethod - Create a new descriptor for the specified C++ method. +DISubprogram DIBuilder::CreateMethod(DIDescriptor Context, + StringRef Name, + StringRef LinkageName, + DIFile F, + unsigned LineNo, DIType Ty, + bool isLocalToUnit, + bool isDefinition, + unsigned VK, unsigned VIndex, + MDNode *VTableHolder, + unsigned Flags, + bool isOptimized, + Function *Fn) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_subprogram), + llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)), + Context, + MDString::get(VMContext, Name), + MDString::get(VMContext, Name), + MDString::get(VMContext, LinkageName), + F, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNo), + Ty, + ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit), + ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition), + ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK), + ConstantInt::get(Type::getInt32Ty(VMContext), VIndex), + VTableHolder, + ConstantInt::get(Type::getInt32Ty(VMContext), Flags), + ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized), + Fn + }; + MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)); + + // Create a named metadata so that we do not lose this mdnode. + NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp"); + NMD->addOperand(Node); + return DISubprogram(Node); +} + +/// CreateNameSpace - This creates new descriptor for a namespace +/// with the specified parent scope. +DINameSpace DIBuilder::CreateNameSpace(DIDescriptor Scope, StringRef Name, + DIFile File, unsigned LineNo) { + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_namespace), + Scope, + MDString::get(VMContext, Name), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), LineNo) + }; + return DINameSpace(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +DILexicalBlock DIBuilder::CreateLexicalBlock(DIDescriptor Scope, DIFile File, + unsigned Line, unsigned Col) { + // Defeat MDNode uniqing for lexical blocks by using unique id. + static unsigned int unique_id = 0; + Value *Elts[] = { + GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block), + Scope, + ConstantInt::get(Type::getInt32Ty(VMContext), Line), + ConstantInt::get(Type::getInt32Ty(VMContext), Col), + File, + ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++) + }; + return DILexicalBlock(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts))); +} + +/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call. +Instruction *DIBuilder::InsertDeclare(Value *Storage, DIVariable VarInfo, + Instruction *InsertBefore) { + assert(Storage && "no storage passed to dbg.declare"); + assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare"); + if (!DeclareFn) + DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare); + + Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo }; + return CallInst::Create(DeclareFn, Args, Args+2, "", InsertBefore); +} + +/// InsertDeclare - Insert a new llvm.dbg.declare intrinsic call. +Instruction *DIBuilder::InsertDeclare(Value *Storage, DIVariable VarInfo, + BasicBlock *InsertAtEnd) { + assert(Storage && "no storage passed to dbg.declare"); + assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare"); + if (!DeclareFn) + DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare); + + Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo }; + + // If this block already has a terminator then insert this intrinsic + // before the terminator. + if (TerminatorInst *T = InsertAtEnd->getTerminator()) + return CallInst::Create(DeclareFn, Args, Args+2, "", T); + else + return CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd); +} + +/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call. +Instruction *DIBuilder::InsertDbgValueIntrinsic(Value *V, uint64_t Offset, + DIVariable VarInfo, + Instruction *InsertBefore) { + assert(V && "no value passed to dbg.value"); + assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value"); + if (!ValueFn) + ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value); + + Value *Args[] = { MDNode::get(V->getContext(), &V, 1), + ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset), + VarInfo }; + return CallInst::Create(ValueFn, Args, Args+3, "", InsertBefore); +} + +/// InsertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call. +Instruction *DIBuilder::InsertDbgValueIntrinsic(Value *V, uint64_t Offset, + DIVariable VarInfo, + BasicBlock *InsertAtEnd) { + assert(V && "no value passed to dbg.value"); + assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value"); + if (!ValueFn) + ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value); + + Value *Args[] = { MDNode::get(V->getContext(), &V, 1), + ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset), + VarInfo }; + return CallInst::Create(ValueFn, Args, Args+3, "", InsertAtEnd); +} + |
