mirror of
https://github.com/c64scene-ar/llvm-6502.git
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e9e16c5f52
Use 8 bits from line number field to keep track of argument ordering while encoding debug info for an argument. That leaves 24 bit for line no, DebugLoc also allocates 24 bit for line numbers. If a function has more than 255 arguments then rest of the arguments will be ordered by llvm.dbg.* intrinsics' ordering in IR. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126793 91177308-0d34-0410-b5e6-96231b3b80d8
802 lines
33 KiB
C++
802 lines
33 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[0], array_lengthof(Elts)));
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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[0], array_lengthof(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[0], array_lengthof(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[0], array_lengthof(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[0], array_lengthof(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[0], array_lengthof(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[0], array_lengthof(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) {
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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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Ty.getContext(),
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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[0], array_lengthof(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[0], array_lengthof(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[0], array_lengthof(Elts)));
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}
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/// createMemberType - Create debugging information entry for a member.
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DIType DIBuilder::createMemberType(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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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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};
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return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(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[0], array_lengthof(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[0],
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array_lengthof(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[0],
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array_lengthof(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[0], array_lengthof(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[0], array_lengthof(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[0], array_lengthof(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[0], array_lengthof(Elts));
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NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.enum");
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NMD->addOperand(Node);
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return DIType(Node);
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}
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/// createArrayType - Create debugging information entry for an array.
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DIType DIBuilder::createArrayType(uint64_t Size, uint64_t AlignInBits,
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DIType Ty, DIArray Subscripts) {
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// TAG_array_type is encoded in DICompositeType format.
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Value *Elts[] = {
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GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
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TheCU,
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MDString::get(VMContext, ""),
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TheCU,
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ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
ConstantInt::get(Type::getInt64Ty(VMContext), Size),
|
|
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
Ty,
|
|
Subscripts,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
|
|
};
|
|
return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
|
|
}
|
|
|
|
/// createVectorType - Create debugging information entry for a vector.
|
|
DIType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits,
|
|
DIType Ty, DIArray Subscripts) {
|
|
// TAG_vector_type is encoded in DICompositeType format.
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_vector_type),
|
|
TheCU,
|
|
MDString::get(VMContext, ""),
|
|
TheCU,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
ConstantInt::get(Type::getInt64Ty(VMContext), Size),
|
|
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
Ty,
|
|
Subscripts,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
|
|
};
|
|
return DIType(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
|
|
}
|
|
|
|
/// createArtificialType - Create a new DIType with "artificial" flag set.
|
|
DIType DIBuilder::createArtificialType(DIType Ty) {
|
|
if (Ty.isArtificial())
|
|
return Ty;
|
|
|
|
SmallVector<Value *, 9> Elts;
|
|
MDNode *N = Ty;
|
|
assert (N && "Unexpected input DIType!");
|
|
for (unsigned i = 0, e = N->getNumOperands(); i != e; ++i) {
|
|
if (Value *V = N->getOperand(i))
|
|
Elts.push_back(V);
|
|
else
|
|
Elts.push_back(Constant::getNullValue(Type::getInt32Ty(VMContext)));
|
|
}
|
|
|
|
unsigned CurFlags = Ty.getFlags();
|
|
CurFlags = CurFlags | DIType::FlagArtificial;
|
|
|
|
// Flags are stored at this slot.
|
|
Elts[8] = ConstantInt::get(Type::getInt32Ty(VMContext), CurFlags);
|
|
|
|
return DIType(MDNode::get(VMContext, Elts.data(), Elts.size()));
|
|
}
|
|
|
|
/// retainType - Retain DIType in a module even if it is not referenced
|
|
/// through debug info anchors.
|
|
void DIBuilder::retainType(DIType T) {
|
|
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.ty");
|
|
NMD->addOperand(T);
|
|
}
|
|
|
|
/// createUnspecifiedParameter - Create unspeicified type descriptor
|
|
/// for the subroutine type.
|
|
DIDescriptor DIBuilder::createUnspecifiedParameter() {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_unspecified_parameters)
|
|
};
|
|
return DIDescriptor(MDNode::get(VMContext, &Elts[0], 1));
|
|
}
|
|
|
|
/// createTemporaryType - Create a temporary forward-declared type.
|
|
DIType DIBuilder::createTemporaryType() {
|
|
// Give the temporary MDNode a tag. It doesn't matter what tag we
|
|
// use here as long as DIType accepts it.
|
|
Value *Elts[] = { GetTagConstant(VMContext, DW_TAG_base_type) };
|
|
MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts));
|
|
return DIType(Node);
|
|
}
|
|
|
|
/// createTemporaryType - Create a temporary forward-declared type.
|
|
DIType DIBuilder::createTemporaryType(DIFile F) {
|
|
// Give the temporary MDNode a tag. It doesn't matter what tag we
|
|
// use here as long as DIType accepts it.
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, DW_TAG_base_type),
|
|
F.getCompileUnit(),
|
|
NULL,
|
|
F
|
|
};
|
|
MDNode *Node = MDNode::getTemporary(VMContext, Elts, array_lengthof(Elts));
|
|
return DIType(Node);
|
|
}
|
|
|
|
/// getOrCreateArray - Get a DIArray, create one if required.
|
|
DIArray DIBuilder::getOrCreateArray(Value *const *Elements, unsigned NumElements) {
|
|
if (NumElements == 0) {
|
|
Value *Null = llvm::Constant::getNullValue(Type::getInt32Ty(VMContext));
|
|
return DIArray(MDNode::get(VMContext, &Null, 1));
|
|
}
|
|
return DIArray(MDNode::get(VMContext, Elements, NumElements));
|
|
}
|
|
|
|
/// getOrCreateSubrange - Create a descriptor for a value range. This
|
|
/// implicitly uniques the values returned.
|
|
DISubrange DIBuilder::getOrCreateSubrange(int64_t Lo, int64_t Hi) {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_subrange_type),
|
|
ConstantInt::get(Type::getInt64Ty(VMContext), Lo),
|
|
ConstantInt::get(Type::getInt64Ty(VMContext), Hi)
|
|
};
|
|
|
|
return DISubrange(MDNode::get(VMContext, &Elts[0], 3));
|
|
}
|
|
|
|
/// createGlobalVariable - Create a new descriptor for the specified global.
|
|
DIGlobalVariable DIBuilder::
|
|
createGlobalVariable(StringRef Name, DIFile F, unsigned LineNumber,
|
|
DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_variable),
|
|
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
|
|
TheCU,
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, Name),
|
|
F,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
|
|
Ty,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
|
|
Val
|
|
};
|
|
MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
|
|
// Create a named metadata so that we do not lose this mdnode.
|
|
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
|
|
NMD->addOperand(Node);
|
|
return DIGlobalVariable(Node);
|
|
}
|
|
|
|
/// createStaticVariable - Create a new descriptor for the specified static
|
|
/// variable.
|
|
DIGlobalVariable DIBuilder::
|
|
createStaticVariable(DIDescriptor Context, StringRef Name,
|
|
StringRef LinkageName, DIFile F, unsigned LineNumber,
|
|
DIType Ty, bool isLocalToUnit, llvm::Value *Val) {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_variable),
|
|
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
|
|
Context,
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, LinkageName),
|
|
F,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), LineNumber),
|
|
Ty,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), isLocalToUnit),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 1), /* isDefinition*/
|
|
Val
|
|
};
|
|
MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
|
|
// Create a named metadata so that we do not lose this mdnode.
|
|
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.gv");
|
|
NMD->addOperand(Node);
|
|
return DIGlobalVariable(Node);
|
|
}
|
|
|
|
/// createVariable - Create a new descriptor for the specified variable.
|
|
DIVariable DIBuilder::createLocalVariable(unsigned Tag, DIDescriptor Scope,
|
|
StringRef Name, DIFile File,
|
|
unsigned LineNo, DIType Ty,
|
|
bool AlwaysPreserve, unsigned Flags,
|
|
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)
|
|
};
|
|
MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
|
|
if (AlwaysPreserve) {
|
|
// The optimizer may remove local variable. If there is an interest
|
|
// to preserve variable info in such situation then stash it in a
|
|
// named mdnode.
|
|
DISubprogram Fn(getDISubprogram(Scope));
|
|
StringRef FName = "fn";
|
|
if (Fn.getFunction())
|
|
FName = Fn.getFunction()->getName();
|
|
char One = '\1';
|
|
if (FName.startswith(StringRef(&One, 1)))
|
|
FName = FName.substr(1);
|
|
NamedMDNode *FnLocals = getOrInsertFnSpecificMDNode(M, FName);
|
|
FnLocals->addOperand(Node);
|
|
}
|
|
return DIVariable(Node);
|
|
}
|
|
|
|
/// createComplexVariable - Create a new descriptor for the specified variable
|
|
/// which has a complex address expression for its address.
|
|
DIVariable DIBuilder::createComplexVariable(unsigned Tag, DIDescriptor Scope,
|
|
StringRef Name, DIFile F,
|
|
unsigned LineNo,
|
|
DIType Ty, Value *const *Addr,
|
|
unsigned NumAddr, 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.append(Addr, Addr+NumAddr);
|
|
|
|
return DIVariable(MDNode::get(VMContext, Elts.data(), Elts.size()));
|
|
}
|
|
|
|
/// createFunction - Create a new descriptor for the specified function.
|
|
DISubprogram DIBuilder::createFunction(DIDescriptor Context,
|
|
StringRef Name,
|
|
StringRef LinkageName,
|
|
DIFile File, unsigned LineNo,
|
|
DIType Ty,
|
|
bool isLocalToUnit, bool isDefinition,
|
|
unsigned Flags, bool isOptimized,
|
|
Function *Fn) {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
|
|
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
|
|
Context,
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, LinkageName),
|
|
File,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
|
|
Ty,
|
|
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
|
|
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
|
|
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
|
|
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
|
|
Fn
|
|
};
|
|
MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
|
|
|
|
// Create a named metadata so that we do not lose this mdnode.
|
|
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
|
|
NMD->addOperand(Node);
|
|
return DISubprogram(Node);
|
|
}
|
|
|
|
/// createMethod - Create a new descriptor for the specified C++ method.
|
|
DISubprogram DIBuilder::createMethod(DIDescriptor Context,
|
|
StringRef Name,
|
|
StringRef LinkageName,
|
|
DIFile F,
|
|
unsigned LineNo, DIType Ty,
|
|
bool isLocalToUnit,
|
|
bool isDefinition,
|
|
unsigned VK, unsigned VIndex,
|
|
MDNode *VTableHolder,
|
|
unsigned Flags,
|
|
bool isOptimized,
|
|
Function *Fn) {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_subprogram),
|
|
llvm::Constant::getNullValue(Type::getInt32Ty(VMContext)),
|
|
Context,
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, Name),
|
|
MDString::get(VMContext, LinkageName),
|
|
F,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo),
|
|
Ty,
|
|
ConstantInt::get(Type::getInt1Ty(VMContext), isLocalToUnit),
|
|
ConstantInt::get(Type::getInt1Ty(VMContext), isDefinition),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), (unsigned)VK),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), VIndex),
|
|
VTableHolder,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), Flags),
|
|
ConstantInt::get(Type::getInt1Ty(VMContext), isOptimized),
|
|
Fn
|
|
};
|
|
MDNode *Node = MDNode::get(VMContext, &Elts[0], array_lengthof(Elts));
|
|
|
|
// Create a named metadata so that we do not lose this mdnode.
|
|
NamedMDNode *NMD = M.getOrInsertNamedMetadata("llvm.dbg.sp");
|
|
NMD->addOperand(Node);
|
|
return DISubprogram(Node);
|
|
}
|
|
|
|
/// createNameSpace - This creates new descriptor for a namespace
|
|
/// with the specified parent scope.
|
|
DINameSpace DIBuilder::createNameSpace(DIDescriptor Scope, StringRef Name,
|
|
DIFile File, unsigned LineNo) {
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_namespace),
|
|
Scope,
|
|
MDString::get(VMContext, Name),
|
|
File,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), LineNo)
|
|
};
|
|
return DINameSpace(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
|
|
}
|
|
|
|
DILexicalBlock DIBuilder::createLexicalBlock(DIDescriptor Scope, DIFile File,
|
|
unsigned Line, unsigned Col) {
|
|
// Defeat MDNode uniqing for lexical blocks by using unique id.
|
|
static unsigned int unique_id = 0;
|
|
Value *Elts[] = {
|
|
GetTagConstant(VMContext, dwarf::DW_TAG_lexical_block),
|
|
Scope,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), Line),
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), Col),
|
|
File,
|
|
ConstantInt::get(Type::getInt32Ty(VMContext), unique_id++)
|
|
};
|
|
return DILexicalBlock(MDNode::get(VMContext, &Elts[0], array_lengthof(Elts)));
|
|
}
|
|
|
|
/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
|
|
Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
|
|
Instruction *InsertBefore) {
|
|
assert(Storage && "no storage passed to dbg.declare");
|
|
assert(VarInfo.Verify() && "empty DIVariable passed to dbg.declare");
|
|
if (!DeclareFn)
|
|
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
|
|
|
|
Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo };
|
|
return CallInst::Create(DeclareFn, Args, Args+2, "", InsertBefore);
|
|
}
|
|
|
|
/// insertDeclare - Insert a new llvm.dbg.declare intrinsic call.
|
|
Instruction *DIBuilder::insertDeclare(Value *Storage, DIVariable VarInfo,
|
|
BasicBlock *InsertAtEnd) {
|
|
assert(Storage && "no storage passed to dbg.declare");
|
|
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.declare");
|
|
if (!DeclareFn)
|
|
DeclareFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_declare);
|
|
|
|
Value *Args[] = { MDNode::get(Storage->getContext(), &Storage, 1), VarInfo };
|
|
|
|
// If this block already has a terminator then insert this intrinsic
|
|
// before the terminator.
|
|
if (TerminatorInst *T = InsertAtEnd->getTerminator())
|
|
return CallInst::Create(DeclareFn, Args, Args+2, "", T);
|
|
else
|
|
return CallInst::Create(DeclareFn, Args, Args+2, "", InsertAtEnd);
|
|
}
|
|
|
|
/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
|
|
Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
|
|
DIVariable VarInfo,
|
|
Instruction *InsertBefore) {
|
|
assert(V && "no value passed to dbg.value");
|
|
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
|
|
if (!ValueFn)
|
|
ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
|
|
|
|
Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
|
|
ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
|
|
VarInfo };
|
|
return CallInst::Create(ValueFn, Args, Args+3, "", InsertBefore);
|
|
}
|
|
|
|
/// insertDbgValueIntrinsic - Insert a new llvm.dbg.value intrinsic call.
|
|
Instruction *DIBuilder::insertDbgValueIntrinsic(Value *V, uint64_t Offset,
|
|
DIVariable VarInfo,
|
|
BasicBlock *InsertAtEnd) {
|
|
assert(V && "no value passed to dbg.value");
|
|
assert(VarInfo.Verify() && "invalid DIVariable passed to dbg.value");
|
|
if (!ValueFn)
|
|
ValueFn = Intrinsic::getDeclaration(&M, Intrinsic::dbg_value);
|
|
|
|
Value *Args[] = { MDNode::get(V->getContext(), &V, 1),
|
|
ConstantInt::get(Type::getInt64Ty(V->getContext()), Offset),
|
|
VarInfo };
|
|
return CallInst::Create(ValueFn, Args, Args+3, "", InsertAtEnd);
|
|
}
|
|
|