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842 lines
34 KiB
C++
842 lines
34 KiB
C++
//===--- DIBuilder.cpp - Debug Information Builder ------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the DIBuilder.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Analysis/DIBuilder.h"
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#include "llvm/Analysis/DebugInfo.h"
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#include "llvm/Constants.h"
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#include "llvm/IntrinsicInst.h"
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#include "llvm/Module.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/Support/Dwarf.h"
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using namespace llvm;
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using namespace llvm::dwarf;
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static Constant *GetTagConstant(LLVMContext &VMContext, unsigned Tag) {
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assert((Tag & LLVMDebugVersionMask) == 0 &&
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"Tag too large for debug encoding!");
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return ConstantInt::get(Type::getInt32Ty(VMContext), Tag | LLVMDebugVersion);
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}
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DIBuilder::DIBuilder(Module &m)
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: M(m), VMContext(M.getContext()), TheCU(0), DeclareFn(0), ValueFn(0) {}
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/// createCompileUnit - A CompileUnit provides an anchor for all debugging
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/// information generated during this instance of compilation.
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void DIBuilder::createCompileUnit(unsigned Lang, StringRef Filename,
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StringRef Directory, StringRef Producer,
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bool isOptimized, StringRef Flags,
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unsigned RunTimeVer) {
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_compile_unit),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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ConstantInt::get(Type::getInt32Ty(VMContext), Lang),
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MDString::get(VMContext, Filename),
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MDString::get(VMContext, Directory),
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MDString::get(VMContext, Producer),
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// Deprecate isMain field.
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ConstantInt::get(Type::getInt1Ty(VMContext), true), // isMain
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ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
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MDString::get(VMContext, Flags),
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ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeVer)
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};
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TheCU = DICompileUnit(MDNode::get(VMContext, Elts));
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// 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");
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NMD->addOperand(TheCU);
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}
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/// createFile - Create a file descriptor to hold debugging information
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/// for a file.
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DIFile DIBuilder::createFile(StringRef Filename, StringRef Directory) {
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assert(TheCU && "Unable to create DW_TAG_file_type without CompileUnit");
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_file_type),
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MDString::get(VMContext, Filename),
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MDString::get(VMContext, Directory),
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TheCU
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};
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return DIFile(MDNode::get(VMContext, Elts));
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}
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/// createEnumerator - Create a single enumerator value.
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DIEnumerator DIBuilder::createEnumerator(StringRef Name, uint64_t Val) {
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_enumerator),
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MDString::get(VMContext, Name),
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ConstantInt::get(Type::getInt64Ty(VMContext), Val)
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};
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return DIEnumerator(MDNode::get(VMContext, Elts));
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}
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/// createBasicType - Create debugging information entry for a basic
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/// type, e.g 'char'.
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DIType DIBuilder::createBasicType(StringRef Name, uint64_t SizeInBits,
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uint64_t AlignInBits,
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unsigned Encoding) {
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// 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),
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TheCU,
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MDString::get(VMContext, Name),
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NULL, // Filename
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags;
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ConstantInt::get(Type::getInt32Ty(VMContext), Encoding)
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createQaulifiedType - Create debugging information entry for a qualified
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/// type, e.g. 'const int'.
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DIType DIBuilder::createQualifiedType(unsigned Tag, DIType FromTy) {
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// Qualified types are encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, Tag),
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TheCU,
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MDString::get(VMContext, StringRef()), // Empty name.
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NULL, // Filename
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
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FromTy
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createPointerType - Create debugging information entry for a pointer.
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DIType DIBuilder::createPointerType(DIType PointeeTy, uint64_t SizeInBits,
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uint64_t AlignInBits, StringRef Name) {
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// Pointer types are encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_pointer_type),
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TheCU,
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MDString::get(VMContext, Name),
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NULL, // Filename
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
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PointeeTy
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createReferenceType - Create debugging information entry for a reference.
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DIType DIBuilder::createReferenceType(DIType RTy) {
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// References are encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_reference_type),
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TheCU,
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NULL, // Name
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NULL, // Filename
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
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RTy
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createTypedef - Create debugging information entry for a typedef.
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DIType DIBuilder::createTypedef(DIType Ty, StringRef Name, DIFile File,
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unsigned LineNo, DIDescriptor Context) {
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// typedefs are encoded in DIDerivedType format.
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assert(Ty.Verify() && "Invalid typedef type!");
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_typedef),
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Context,
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
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Ty
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createFriend - Create debugging information entry for a 'friend'.
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DIType DIBuilder::createFriend(DIType Ty, DIType FriendTy) {
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// typedefs are encoded in DIDerivedType format.
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assert(Ty.Verify() && "Invalid type!");
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assert(FriendTy.Verify() && "Invalid friend type!");
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_friend),
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Ty,
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NULL, // Name
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Ty.getFile(),
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Offset
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Flags
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FriendTy
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createInheritance - Create debugging information entry to establish
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/// inheritnace relationship between two types.
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DIType DIBuilder::createInheritance(DIType Ty, DIType BaseTy,
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uint64_t BaseOffset, unsigned Flags) {
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// TAG_inheritance is encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_inheritance),
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Ty,
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NULL, // Name
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Ty.getFile(),
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ConstantInt::get(Type::getInt32Ty(VMContext), 0), // Line
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Size
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ConstantInt::get(Type::getInt64Ty(VMContext), 0), // Align
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ConstantInt::get(Type::getInt64Ty(VMContext), BaseOffset),
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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BaseTy
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createMemberType - Create debugging information entry for a member.
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DIType DIBuilder::createMemberType(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits, uint64_t AlignInBits,
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uint64_t OffsetInBits, unsigned Flags,
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DIType Ty) {
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// TAG_member is encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_member),
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Scope,
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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Ty
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createObjCIVar - Create debugging information entry for Objective-C
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/// instance variable.
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DIType DIBuilder::createObjCIVar(StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits, uint64_t AlignInBits,
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uint64_t OffsetInBits, unsigned Flags,
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DIType Ty, StringRef PropertyName,
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StringRef GetterName, StringRef SetterName,
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unsigned PropertyAttributes) {
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// TAG_member is encoded in DIDerivedType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_member),
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File, // Or TheCU ? Ty ?
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), OffsetInBits),
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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Ty,
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MDString::get(VMContext, PropertyName),
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MDString::get(VMContext, GetterName),
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MDString::get(VMContext, SetterName),
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ConstantInt::get(Type::getInt32Ty(VMContext), PropertyAttributes)
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createClassType - Create debugging information entry for a class.
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DIType DIBuilder::createClassType(DIDescriptor Context, StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits, uint64_t AlignInBits,
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uint64_t OffsetInBits, unsigned Flags,
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DIType DerivedFrom, DIArray Elements,
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MDNode *VTableHoder, MDNode *TemplateParams) {
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// TAG_class_type is encoded in DICompositeType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_class_type),
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Context,
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt32Ty(VMContext), OffsetInBits),
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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DerivedFrom,
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Elements,
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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VTableHoder,
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TemplateParams
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createTemplateTypeParameter - Create debugging information for template
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/// type parameter.
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DITemplateTypeParameter
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DIBuilder::createTemplateTypeParameter(DIDescriptor Context, StringRef Name,
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DIType Ty, MDNode *File, unsigned LineNo,
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unsigned ColumnNo) {
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_template_type_parameter),
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Context,
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MDString::get(VMContext, Name),
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Ty,
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
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ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
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};
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return DITemplateTypeParameter(MDNode::get(VMContext, Elts));
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}
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/// createTemplateValueParameter - Create debugging information for template
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/// value parameter.
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DITemplateValueParameter
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DIBuilder::createTemplateValueParameter(DIDescriptor Context, StringRef Name,
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DIType Ty, uint64_t Val,
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MDNode *File, unsigned LineNo,
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unsigned ColumnNo) {
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_template_value_parameter),
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Context,
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MDString::get(VMContext, Name),
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Ty,
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ConstantInt::get(Type::getInt64Ty(VMContext), Val),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
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ConstantInt::get(Type::getInt32Ty(VMContext), ColumnNo)
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};
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return DITemplateValueParameter(MDNode::get(VMContext, Elts));
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}
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/// createStructType - Create debugging information entry for a struct.
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DIType DIBuilder::createStructType(DIDescriptor Context, StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits, uint64_t AlignInBits,
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unsigned Flags, DIArray Elements,
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unsigned RunTimeLang) {
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// TAG_structure_type is encoded in DICompositeType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_structure_type),
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Context,
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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Elements,
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ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createUnionType - Create debugging information entry for an union.
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DIType DIBuilder::createUnionType(DIDescriptor Scope, StringRef Name,
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DIFile File,
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unsigned LineNumber, uint64_t SizeInBits,
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uint64_t AlignInBits, unsigned Flags,
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DIArray Elements, unsigned RunTimeLang) {
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// TAG_union_type is encoded in DICompositeType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_union_type),
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Scope,
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), 0),
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ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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Elements,
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ConstantInt::get(Type::getInt32Ty(VMContext), RunTimeLang),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createSubroutineType - Create subroutine type.
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DIType DIBuilder::createSubroutineType(DIFile File, DIArray ParameterTypes) {
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// TAG_subroutine_type is encoded in DICompositeType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_subroutine_type),
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File,
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MDString::get(VMContext, ""),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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ConstantInt::get(Type::getInt64Ty(VMContext), 0),
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ConstantInt::get(Type::getInt64Ty(VMContext), 0),
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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ParameterTypes,
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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};
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return DIType(MDNode::get(VMContext, Elts));
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}
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/// createEnumerationType - Create debugging information entry for an
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/// enumeration.
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DIType DIBuilder::createEnumerationType(DIDescriptor Scope, StringRef Name,
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DIFile File, unsigned LineNumber,
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uint64_t SizeInBits,
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uint64_t AlignInBits, DIArray Elements) {
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// TAG_enumeration_type is encoded in DICompositeType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_enumeration_type),
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Scope,
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MDString::get(VMContext, Name),
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File,
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ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
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ConstantInt::get(Type::getInt64Ty(VMContext), SizeInBits),
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ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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Elements,
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
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llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
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};
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MDNode *Node = MDNode::get(VMContext, 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));
|
|
}
|
|
|
|
/// 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));
|
|
}
|
|
|
|
/// 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));
|
|
}
|
|
|
|
/// 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));
|
|
}
|
|
|
|
/// 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),
|
|
F.getCompileUnit(),
|
|
NULL,
|
|
F
|
|
};
|
|
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 = llvm::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 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));
|
|
}
|
|
|
|
/// 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);
|
|
// 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);
|
|
// 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,
|
|
unsigned ArgNo) {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, Tag),
|
|
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));
|
|
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, ArrayRef<Value *> Addr,
|
|
unsigned ArgNo) {
|
|
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 | (ArgNo << 24))));
|
|
Elts.push_back(Ty);
|
|
Elts.push_back(llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)));
|
|
Elts.push_back(llvm::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 Flags, bool isOptimized,
|
|
Function *Fn,
|
|
MDNode *TParams,
|
|
MDNode *Decl) {
|
|
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,
|
|
TParams,
|
|
Decl
|
|
};
|
|
MDNode *Node = MDNode::get(VMContext, 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,
|
|
MDNode *TParam) {
|
|
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,
|
|
TParam,
|
|
};
|
|
MDNode *Node = MDNode::get(VMContext, 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));
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
/// 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);
|
|
}
|
|
|