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			1082 lines
		
	
	
		
			43 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
			
		
		
	
	
			1082 lines
		
	
	
		
			43 KiB
		
	
	
	
		
			C++
		
	
	
	
	
	
| //===--- DIBuilder.cpp - Debug Information Builder ------------------------===//
 | |
| //
 | |
| //                     The LLVM Compiler Infrastructure
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| //
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| // This file is distributed under the University of Illinois Open Source
 | |
| // License. See LICENSE.TXT for details.
 | |
| //
 | |
| //===----------------------------------------------------------------------===//
 | |
| //
 | |
| // This file implements the DIBuilder.
 | |
| //
 | |
| //===----------------------------------------------------------------------===//
 | |
| 
 | |
| #include "llvm/DIBuilder.h"
 | |
| #include "llvm/ADT/STLExtras.h"
 | |
| #include "llvm/DebugInfo.h"
 | |
| #include "llvm/IR/Constants.h"
 | |
| #include "llvm/IR/IntrinsicInst.h"
 | |
| #include "llvm/IR/Module.h"
 | |
| #include "llvm/Support/Debug.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), TempEnumTypes(0),
 | |
|     TempRetainTypes(0), TempSubprograms(0), TempGVs(0), DeclareFn(0),
 | |
|     ValueFn(0)
 | |
| {}
 | |
| 
 | |
| /// finalize - Construct any deferred debug info descriptors.
 | |
| void DIBuilder::finalize() {
 | |
|   DIArray Enums = getOrCreateArray(AllEnumTypes);
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|   DIType(TempEnumTypes).replaceAllUsesWith(Enums);
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| 
 | |
|   DIArray RetainTypes = getOrCreateArray(AllRetainTypes);
 | |
|   DIType(TempRetainTypes).replaceAllUsesWith(RetainTypes);
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| 
 | |
|   DIArray SPs = getOrCreateArray(AllSubprograms);
 | |
|   DIType(TempSubprograms).replaceAllUsesWith(SPs);
 | |
|   for (unsigned i = 0, e = SPs.getNumElements(); i != e; ++i) {
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|     DISubprogram SP(SPs.getElement(i));
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|     SmallVector<Value *, 4> Variables;
 | |
|     if (NamedMDNode *NMD = getFnSpecificMDNode(M, SP)) {
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|       for (unsigned ii = 0, ee = NMD->getNumOperands(); ii != ee; ++ii)
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|         Variables.push_back(NMD->getOperand(ii));
 | |
|       NMD->eraseFromParent();
 | |
|     }
 | |
|     if (MDNode *Temp = SP.getVariablesNodes()) {
 | |
|       DIArray AV = getOrCreateArray(Variables);
 | |
|       DIType(Temp).replaceAllUsesWith(AV);
 | |
|     }
 | |
|   }
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| 
 | |
|   DIArray GVs = getOrCreateArray(AllGVs);
 | |
|   DIType(TempGVs).replaceAllUsesWith(GVs);
 | |
| }
 | |
| 
 | |
| /// getNonCompileUnitScope - If N is compile unit return NULL otherwise return
 | |
| /// N.
 | |
| static MDNode *getNonCompileUnitScope(MDNode *N) {
 | |
|   if (DIDescriptor(N).isCompileUnit())
 | |
|     return NULL;
 | |
|   return N;
 | |
| }
 | |
| 
 | |
| /// 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,
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|                                   bool isOptimized, StringRef Flags,
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|                                   unsigned RunTimeVer, StringRef SplitName) {
 | |
|   assert(((Lang <= dwarf::DW_LANG_Python && Lang >= dwarf::DW_LANG_C89) ||
 | |
|           (Lang <= dwarf::DW_LANG_hi_user && Lang >= dwarf::DW_LANG_lo_user)) &&
 | |
|          "Invalid Language tag");
 | |
|   assert(!Filename.empty() &&
 | |
|          "Unable to create compile unit without filename");
 | |
|   Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
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|   TempEnumTypes = MDNode::getTemporary(VMContext, TElts);
 | |
| 
 | |
|   TempRetainTypes = MDNode::getTemporary(VMContext, TElts);
 | |
| 
 | |
|   TempSubprograms = MDNode::getTemporary(VMContext, TElts);
 | |
| 
 | |
|   TempGVs = MDNode::getTemporary(VMContext, TElts);
 | |
| 
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_compile_unit),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), Lang),
 | |
|     MDString::get(VMContext, Filename),
 | |
|     MDString::get(VMContext, Directory),
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|     MDString::get(VMContext, Producer),
 | |
|     // isMain field can be removed when we remove the legacy debug info.
 | |
|     ConstantInt::get(Type::getInt1Ty(VMContext), true), // isMain
 | |
|     ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
 | |
|     MDString::get(VMContext, Flags),
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|     ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer),
 | |
|     TempEnumTypes,
 | |
|     TempRetainTypes,
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|     TempSubprograms,
 | |
|     TempGVs,
 | |
|     MDString::get(VMContext, SplitName)
 | |
|   };
 | |
|   TheCU = DICompileUnit(MDNode::get(VMContext, Elts));
 | |
| 
 | |
|   // Create a named metadata so that it is easier to find cu in a module.
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|   NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.cu");
 | |
|   NMD->addOperand(TheCU);
 | |
| }
 | |
| 
 | |
| /// createFile - Create a file descriptor to hold debugging information
 | |
| /// for a file.
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| DIFile DIBuilder::createFile(StringRef Filename, StringRef Directory) {
 | |
|   assert(TheCU && "Unable to create DW_TAG_file_type without CompileUnit");
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|   assert(!Filename.empty() && "Unable to create file without name");
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_file_type),
 | |
|     MDString::get(VMContext, Filename),
 | |
|     MDString::get(VMContext, Directory),
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|     NULL // TheCU
 | |
|   };
 | |
|   return DIFile(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createEnumerator - Create a single enumerator value.
 | |
| DIEnumerator DIBuilder::createEnumerator(StringRef Name, uint64_t Val) {
 | |
|   assert(!Name.empty() && "Unable to create enumerator without name");
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_enumerator),
 | |
|     MDString::get(VMContext, Name),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), Val)
 | |
|   };
 | |
|   return DIEnumerator(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createNullPtrType - Create C++0x nullptr type.
 | |
| DIType DIBuilder::createNullPtrType(StringRef Name) {
 | |
|   assert(!Name.empty() && "Unable to create type without name");
 | |
|   // nullptr is encoded in DIBasicType format. Line number, filename,
 | |
|   // ,size, alignment, offset and flags are always empty here.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_type),
 | |
|     NULL, //TheCU,
 | |
|     MDString::get(VMContext, 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;
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0)  // Encoding
 | |
|   };
 | |
|   return DIType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createBasicType - Create debugging information entry for a basic
 | |
| /// type, e.g 'char'.
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| DIBasicType
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| DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits,
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|                            uint64_t AlignInBits, unsigned Encoding) {
 | |
|   assert(!Name.empty() && "Unable to create type without name");
 | |
|   // Basic types are encoded in DIBasicType format. Line number, filename,
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|   // offset and flags are always empty here.
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|   Value *Elts[] = {
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|     GetTagConstant(VMContext, dwarf::DW_TAG_base_type),
 | |
|     NULL, //TheCU,
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|     MDString::get(VMContext, Name),
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|     NULL, // Filename
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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|     ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), Encoding)
 | |
|   };
 | |
|   return DIBasicType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createQualifiedType - Create debugging information entry for a qualified
 | |
| /// type, e.g. 'const int'.
 | |
| DIDerivedType DIBuilder::createQualifiedType(unsigned Tag, DIType FromTy) {
 | |
|   // Qualified types are encoded in DIDerivedType format.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, Tag),
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|     NULL, //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 DIDerivedType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createPointerType - Create debugging information entry for a pointer.
 | |
| DIDerivedType
 | |
| 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),
 | |
|     NULL, //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 DIDerivedType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| DIDerivedType DIBuilder::createMemberPointerType(DIType PointeeTy, DIType Base) {
 | |
|   // Pointer types are encoded in DIDerivedType format.
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|   Value *Elts[] = {
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|     GetTagConstant(VMContext, dwarf::DW_TAG_ptr_to_member_type),
 | |
|     NULL, //TheCU,
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|     NULL,
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|     NULL, // Filename
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
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|     PointeeTy,
 | |
|     Base
 | |
|   };
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|   return DIDerivedType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createReferenceType - Create debugging information entry for a reference
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| /// type.
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| DIDerivedType DIBuilder::createReferenceType(unsigned Tag, DIType RTy) {
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|   assert(RTy.Verify() && "Unable to create reference type");
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|   // References are encoded in DIDerivedType format.
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|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, Tag),
 | |
|     NULL, // TheCU,
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|     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
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|     ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
 | |
|     RTy
 | |
|   };
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|   return DIDerivedType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createTypedef - Create debugging information entry for a typedef.
 | |
| DIDerivedType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File,
 | |
|                                        unsigned LineNo, DIDescriptor Context) {
 | |
|   // typedefs are encoded in DIDerivedType format.
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|   assert(Ty.Verify() && "Invalid typedef type!");
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
 | |
|     getNonCompileUnitScope(Context),
 | |
|     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 DIDerivedType(MDNode::get(VMContext, 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));
 | |
| }
 | |
| 
 | |
| /// createInheritance - Create debugging information entry to establish
 | |
| /// inheritance relationship between two types.
 | |
| DIDerivedType DIBuilder::createInheritance(
 | |
|     DIType Ty, DIType BaseTy, uint64_t BaseOffset, unsigned Flags) {
 | |
|   assert(Ty.Verify() && "Unable to create inheritance");
 | |
|   // 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 DIDerivedType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createMemberType - Create debugging information entry for a member.
 | |
| DIDerivedType DIBuilder::createMemberType(
 | |
|     DIDescriptor Scope, 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),
 | |
|     getNonCompileUnitScope(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), OffsetInBits),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
 | |
|     Ty
 | |
|   };
 | |
|   return DIDerivedType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createStaticMemberType - Create debugging information entry for a
 | |
| /// C++ static data member.
 | |
| DIType DIBuilder::createStaticMemberType(DIDescriptor Scope, StringRef Name,
 | |
|                                          DIFile File, unsigned LineNumber,
 | |
|                                          DIType Ty, unsigned Flags,
 | |
|                                          llvm::Value *Val) {
 | |
|   // TAG_member is encoded in DIDerivedType format.
 | |
|   Flags |= DIDescriptor::FlagStaticMember;
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_member),
 | |
|     getNonCompileUnitScope(Scope),
 | |
|     MDString::get(VMContext, Name),
 | |
|     File,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0/*SizeInBits*/),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0/*AlignInBits*/),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0/*OffsetInBits*/),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
 | |
|     Ty,
 | |
|     Val
 | |
|   };
 | |
|   return DIType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createObjCIVar - Create debugging information entry for Objective-C
 | |
| /// instance variable.
 | |
| DIType DIBuilder::createObjCIVar(StringRef Name,
 | |
|                                  DIFile File, unsigned LineNumber,
 | |
|                                  uint64_t SizeInBits, uint64_t AlignInBits,
 | |
|                                  uint64_t OffsetInBits, unsigned Flags,
 | |
|                                  DIType Ty, StringRef PropertyName,
 | |
|                                  StringRef GetterName, StringRef SetterName,
 | |
|                                  unsigned PropertyAttributes) {
 | |
|   // TAG_member is encoded in DIDerivedType format.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_member),
 | |
|     getNonCompileUnitScope(File),
 | |
|     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,
 | |
|     MDString::get(VMContext, PropertyName),
 | |
|     MDString::get(VMContext, GetterName),
 | |
|     MDString::get(VMContext, SetterName),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes)
 | |
|   };
 | |
|   return DIType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createObjCIVar - Create debugging information entry for Objective-C
 | |
| /// instance variable.
 | |
| DIType DIBuilder::createObjCIVar(StringRef Name,
 | |
|                                  DIFile File, unsigned LineNumber,
 | |
|                                  uint64_t SizeInBits, uint64_t AlignInBits,
 | |
|                                  uint64_t OffsetInBits, unsigned Flags,
 | |
|                                  DIType Ty, MDNode *PropertyNode) {
 | |
|   // TAG_member is encoded in DIDerivedType format.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_member),
 | |
|     getNonCompileUnitScope(File),
 | |
|     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,
 | |
|     PropertyNode
 | |
|   };
 | |
|   return DIType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createObjCProperty - Create debugging information entry for Objective-C
 | |
| /// property.
 | |
| DIObjCProperty DIBuilder::createObjCProperty(StringRef Name,
 | |
|                                              DIFile File, unsigned LineNumber,
 | |
|                                              StringRef GetterName,
 | |
|                                              StringRef SetterName, 
 | |
|                                              unsigned PropertyAttributes,
 | |
|                                              DIType Ty) {
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_APPLE_property),
 | |
|     MDString::get(VMContext, Name),
 | |
|     File,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
 | |
|     MDString::get(VMContext, GetterName),
 | |
|     MDString::get(VMContext, SetterName),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes),
 | |
|     Ty
 | |
|   };
 | |
|   return DIObjCProperty(MDNode::get(VMContext, 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),
 | |
|     getNonCompileUnitScope(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));
 | |
| }
 | |
| 
 | |
| /// 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),
 | |
|     getNonCompileUnitScope(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));
 | |
| }
 | |
| 
 | |
| /// 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 *VTableHolder,
 | |
|                                   MDNode *TemplateParams) {
 | |
|  // TAG_class_type is encoded in DICompositeType format.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_class_type),
 | |
|     getNonCompileUnitScope(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),
 | |
|     VTableHolder,
 | |
|     TemplateParams
 | |
|   };
 | |
|   return DIType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createStructType - Create debugging information entry for a struct.
 | |
| DICompositeType DIBuilder::createStructType(DIDescriptor Context,
 | |
|                                             StringRef Name, DIFile File,
 | |
|                                             unsigned LineNumber,
 | |
|                                             uint64_t SizeInBits,
 | |
|                                             uint64_t AlignInBits,
 | |
|                                             unsigned Flags, DIType DerivedFrom,
 | |
|                                             DIArray Elements,
 | |
|                                             unsigned RunTimeLang,
 | |
|                                             MDNode *VTableHolder) {
 | |
|  // TAG_structure_type is encoded in DICompositeType format.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_structure_type),
 | |
|     getNonCompileUnitScope(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),
 | |
|     DerivedFrom,
 | |
|     Elements,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
 | |
|     VTableHolder,
 | |
|     NULL,
 | |
|   };
 | |
|   return DICompositeType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createUnionType - Create debugging information entry for an union.
 | |
| DICompositeType 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),
 | |
|     getNonCompileUnitScope(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),
 | |
|     NULL,
 | |
|     Elements,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext))
 | |
|   };
 | |
|   return DICompositeType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createSubroutineType - Create subroutine type.
 | |
| DICompositeType
 | |
| DIBuilder::createSubroutineType(DIFile File, DIArray ParameterTypes) {
 | |
|   // TAG_subroutine_type is encoded in DICompositeType format.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     MDString::get(VMContext, ""),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), 0),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0),
 | |
|     NULL,
 | |
|     ParameterTypes,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext))
 | |
|   };
 | |
|   return DICompositeType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createEnumerationType - Create debugging information entry for an
 | |
| /// enumeration.
 | |
| DICompositeType DIBuilder::createEnumerationType(
 | |
|     DIDescriptor Scope, StringRef Name, DIFile File, unsigned LineNumber,
 | |
|     uint64_t SizeInBits, uint64_t AlignInBits, DIArray Elements,
 | |
|     DIType ClassType) {
 | |
|   // TAG_enumeration_type is encoded in DICompositeType format.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type),
 | |
|     getNonCompileUnitScope(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),
 | |
|     ClassType,
 | |
|     Elements,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext))
 | |
|   };
 | |
|   MDNode *Node = MDNode::get(VMContext, Elts);
 | |
|   AllEnumTypes.push_back(Node);
 | |
|   return DICompositeType(Node);
 | |
| }
 | |
| 
 | |
| /// createArrayType - Create debugging information entry for an array.
 | |
| DICompositeType 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),
 | |
|     NULL, //TheCU,
 | |
|     MDString::get(VMContext, ""),
 | |
|     NULL, //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),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext))
 | |
|   };
 | |
|   return DICompositeType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createVectorType - Create debugging information entry for a vector.
 | |
| DIType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits,
 | |
|                                    DIType Ty, DIArray Subscripts) {
 | |
| 
 | |
|   // A vector is an array type with the FlagVector flag applied.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
 | |
|     NULL, //TheCU,
 | |
|     MDString::get(VMContext, ""),
 | |
|     NULL, //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), DIType::FlagVector),
 | |
|     Ty,
 | |
|     Subscripts,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext))
 | |
|   };
 | |
|   return DIType(MDNode::get(VMContext, 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));
 | |
| }
 | |
| 
 | |
| /// createObjectPointerType - Create a new type with both the object pointer
 | |
| /// and artificial flags set.
 | |
| DIType DIBuilder::createObjectPointerType(DIType Ty) {
 | |
|   if (Ty.isObjectPointer())
 | |
|     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::FlagObjectPointer | DIType::FlagArtificial);
 | |
| 
 | |
|   // Flags are stored at this slot.
 | |
|   Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
 | |
| 
 | |
|   return DIType(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// retainType - Retain DIType in a module even if it is not referenced
 | |
| /// through debug info anchors.
 | |
| void DIBuilder::retainType(DIType T) {
 | |
|   AllRetainTypes.push_back(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));
 | |
| }
 | |
| 
 | |
| /// 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);
 | |
|   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),
 | |
|     TheCU,
 | |
|     NULL,
 | |
|     F
 | |
|   };
 | |
|   MDNode *Node = MDNode::getTemporary(VMContext, Elts);
 | |
|   return DIType(Node);
 | |
| }
 | |
| 
 | |
| /// createForwardDecl - Create a temporary forward-declared type that
 | |
| /// can be RAUW'd if the full type is seen.
 | |
| DIType DIBuilder::createForwardDecl(unsigned Tag, StringRef Name,
 | |
|                                     DIDescriptor Scope, DIFile F,
 | |
|                                     unsigned Line, unsigned RuntimeLang,
 | |
|                                     uint64_t SizeInBits,
 | |
|                                     uint64_t AlignInBits) {
 | |
|   // Create a temporary MDNode.
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, Tag),
 | |
|     getNonCompileUnitScope(Scope),
 | |
|     MDString::get(VMContext, Name),
 | |
|     F,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), Line),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), 0),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext),
 | |
|                      DIDescriptor::FlagFwdDecl),
 | |
|     NULL,
 | |
|     DIArray(),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), RuntimeLang)
 | |
|   };
 | |
|   MDNode *Node = MDNode::getTemporary(VMContext, Elts);
 | |
|   return DIType(Node);
 | |
| }
 | |
| 
 | |
| /// getOrCreateArray - Get a DIArray, create one if required.
 | |
| DIArray DIBuilder::getOrCreateArray(ArrayRef<Value *> Elements) {
 | |
|   if (Elements.empty()) {
 | |
|     Value *Null = Constant::getNullValue(Type::getInt32Ty(VMContext));
 | |
|     return DIArray(MDNode::get(VMContext, Null));
 | |
|   }
 | |
|   return DIArray(MDNode::get(VMContext, Elements));
 | |
| }
 | |
| 
 | |
| /// getOrCreateSubrange - Create a descriptor for a value range.  This
 | |
| /// implicitly uniques the values returned.
 | |
| DISubrange DIBuilder::getOrCreateSubrange(int64_t Lo, int64_t Count) {
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), Lo),
 | |
|     ConstantInt::get(Type::getInt64Ty(VMContext), Count)
 | |
|   };
 | |
| 
 | |
|   return DISubrange(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createGlobalVariable - Create a new descriptor for the specified global.
 | |
| DIGlobalVariable DIBuilder::
 | |
| createGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber,
 | |
|                      DIType Ty, bool isLocalToUnit, Value *Val) {
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_variable),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     NULL, // 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,
 | |
|     DIDescriptor()
 | |
|   };
 | |
|   MDNode *Node = MDNode::get(VMContext, Elts);
 | |
|   AllGVs.push_back(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, Value *Val, MDNode *Decl) {
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_variable),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     getNonCompileUnitScope(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,
 | |
|     DIDescriptor(Decl)
 | |
|   };
 | |
|   MDNode *Node = MDNode::get(VMContext, Elts);
 | |
|   AllGVs.push_back(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,
 | |
|                                           unsigned ArgNo) {
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, Tag),
 | |
|     getNonCompileUnitScope(Scope),
 | |
|     MDString::get(VMContext, Name),
 | |
|     File,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), (LineNo | (ArgNo << 24))),
 | |
|     Ty,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext))
 | |
|   };
 | |
|   MDNode *Node = MDNode::get(VMContext, 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));
 | |
|     NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, Fn);
 | |
|     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, ArrayRef<Value *> Addr,
 | |
|                                             unsigned ArgNo) {
 | |
|   SmallVector<Value *, 15> Elts;
 | |
|   Elts.push_back(GetTagConstant(VMContext, Tag));
 | |
|   Elts.push_back(getNonCompileUnitScope(Scope)),
 | |
|   Elts.push_back(MDString::get(VMContext, Name));
 | |
|   Elts.push_back(F);
 | |
|   Elts.push_back(ConstantInt::get(Type::getInt32Ty(VMContext),
 | |
|                                   (LineNo | (ArgNo << 24))));
 | |
|   Elts.push_back(Ty);
 | |
|   Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
 | |
|   Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
 | |
|   Elts.append(Addr.begin(), Addr.end());
 | |
| 
 | |
|   return DIVariable(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// 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 ScopeLine,
 | |
|                                        unsigned Flags, bool isOptimized,
 | |
|                                        Function *Fn,
 | |
|                                        MDNode *TParams,
 | |
|                                        MDNode *Decl) {
 | |
|   Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     getNonCompileUnitScope(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),
 | |
|     NULL,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
 | |
|     ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
 | |
|     Fn,
 | |
|     TParams,
 | |
|     Decl,
 | |
|     MDNode::getTemporary(VMContext, TElts),
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), ScopeLine)
 | |
|   };
 | |
|   MDNode *Node = MDNode::get(VMContext, Elts);
 | |
| 
 | |
|   // Create a named metadata so that we do not lose this mdnode.
 | |
|   if (isDefinition)
 | |
|     AllSubprograms.push_back(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,
 | |
|                                      MDNode *TParam) {
 | |
|   Value *TElts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     getNonCompileUnitScope(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,
 | |
|     TParam,
 | |
|     Constant::getNullValue(Type::getInt32Ty(VMContext)),
 | |
|     MDNode::getTemporary(VMContext, TElts),
 | |
|     // FIXME: Do we want to use different scope/lines?
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
 | |
|   };
 | |
|   MDNode *Node = MDNode::get(VMContext, Elts);
 | |
|   if (isDefinition)
 | |
|     AllSubprograms.push_back(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),
 | |
|     getNonCompileUnitScope(Scope),
 | |
|     MDString::get(VMContext, Name),
 | |
|     File,
 | |
|     ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
 | |
|   };
 | |
|   return DINameSpace(MDNode::get(VMContext, Elts));
 | |
| }
 | |
| 
 | |
| /// createLexicalBlockFile - This creates a new MDNode that encapsulates
 | |
| /// an existing scope with a new filename.
 | |
| DILexicalBlockFile DIBuilder::createLexicalBlockFile(DIDescriptor Scope,
 | |
|                                                      DIFile File) {
 | |
|   Value *Elts[] = {
 | |
|     GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
 | |
|     Scope,
 | |
|     File
 | |
|   };
 | |
|   return DILexicalBlockFile(MDNode::get(VMContext, 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),
 | |
|     getNonCompileUnitScope(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));
 | |
| }
 | |
| 
 | |
| /// 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), VarInfo };
 | |
|   return CallInst::Create(DeclareFn, Args, "", 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), 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, "", T);
 | |
|   else
 | |
|     return CallInst::Create(DeclareFn, Args, "", 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),
 | |
|                     ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
 | |
|                     VarInfo };
 | |
|   return CallInst::Create(ValueFn, Args, "", 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),
 | |
|                     ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
 | |
|                     VarInfo };
 | |
|   return CallInst::Create(ValueFn, Args, "", InsertAtEnd);
 | |
| }
 |