LLVM 20.0.0git
Classes | Public Member Functions | Protected Member Functions | List of all members
llvm::CodeViewDebug Class Reference

Collects and handles line tables information in a CodeView format. More...

#include "CodeGen/AsmPrinter/CodeViewDebug.h"

Inheritance diagram for llvm::CodeViewDebug:
Inheritance graph
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Classes

struct  LocalVarDef
 
struct  TypeLoweringScope
 

Public Member Functions

 CodeViewDebug (AsmPrinter *AP)
 
void beginModule (Module *M) override
 
void endModule () override
 Emit the COFF section that holds the line table information.
 
void beginInstruction (const MachineInstr *MI) override
 Process beginning of an instruction.
 
- Public Member Functions inherited from llvm::DebugHandlerBase
virtual ~DebugHandlerBase ()
 
virtual void setSymbolSize (const MCSymbol *Sym, uint64_t Size)
 For symbols that have a size designated (e.g.
 
virtual void beginModule (Module *M)
 
virtual void endModule ()=0
 
virtual void beginInstruction (const MachineInstr *MI)
 
virtual void endInstruction ()
 
void beginFunction (const MachineFunction *MF)
 
void endFunction (const MachineFunction *MF)
 
void beginBasicBlockSection (const MachineBasicBlock &MBB)
 
void endBasicBlockSection (const MachineBasicBlock &MBB)
 
virtual void beginCodeAlignment (const MachineBasicBlock &MBB)
 
MCSymbolgetLabelBeforeInsn (const MachineInstr *MI)
 Return Label preceding the instruction.
 
MCSymbolgetLabelAfterInsn (const MachineInstr *MI)
 Return Label immediately following the instruction.
 
const InstructionOrderinggetInstOrdering () const
 

Protected Member Functions

void beginFunctionImpl (const MachineFunction *MF) override
 Gather pre-function debug information.
 
void endFunctionImpl (const MachineFunction *) override
 Gather post-function debug information.
 
bool moduleIsInFortran ()
 Check if the current module is in Fortran.
 
- Protected Member Functions inherited from llvm::DebugHandlerBase
 DebugHandlerBase (AsmPrinter *A)
 
void identifyScopeMarkers ()
 Indentify instructions that are marking the beginning of or ending of a scope.
 
void requestLabelBeforeInsn (const MachineInstr *MI)
 Ensure that a label will be emitted before MI.
 
void requestLabelAfterInsn (const MachineInstr *MI)
 Ensure that a label will be emitted after MI.
 
virtual void beginFunctionImpl (const MachineFunction *MF)=0
 
virtual void endFunctionImpl (const MachineFunction *MF)=0
 
virtual void skippedNonDebugFunction ()
 

Additional Inherited Members

- Static Public Member Functions inherited from llvm::DebugHandlerBase
static uint64_t getBaseTypeSize (const DIType *Ty)
 If this type is derived from a base type then return base type size.
 
static bool isUnsignedDIType (const DIType *Ty)
 Return true if type encoding is unsigned.
 
- Protected Attributes inherited from llvm::DebugHandlerBase
AsmPrinterAsm = nullptr
 Target of debug info emission.
 
MachineModuleInfoMMI = nullptr
 Collected machine module information.
 
DebugLoc PrevInstLoc
 Previous instruction's location information.
 
MCSymbolPrevLabel = nullptr
 
const MachineBasicBlockPrevInstBB = nullptr
 
DebugLoc PrologEndLoc
 This location indicates end of function prologue and beginning of function body.
 
const MachineBasicBlockEpilogBeginBlock = nullptr
 This block includes epilogue instructions.
 
const MachineInstrCurMI = nullptr
 If nonnull, stores the current machine instruction we're processing.
 
LexicalScopes LScopes
 
DbgValueHistoryMap DbgValues
 History of DBG_VALUE and clobber instructions for each user variable.
 
DbgLabelInstrMap DbgLabels
 Mapping of inlined labels and DBG_LABEL machine instruction.
 
DenseMap< const MachineInstr *, MCSymbol * > LabelsBeforeInsn
 Maps instruction with label emitted before instruction.
 
DenseMap< const MachineInstr *, MCSymbol * > LabelsAfterInsn
 Maps instruction with label emitted after instruction.
 

Detailed Description

Collects and handles line tables information in a CodeView format.

Definition at line 55 of file CodeViewDebug.h.

Constructor & Destructor Documentation

◆ CodeViewDebug()

CodeViewDebug::CodeViewDebug ( AsmPrinter AP)

Definition at line 133 of file CodeViewDebug.cpp.

References Allocator.

Member Function Documentation

◆ beginFunctionImpl()

void CodeViewDebug::beginFunctionImpl ( const MachineFunction MF)
overrideprotectedvirtual

Gather pre-function debug information.

Implements llvm::DebugHandlerBase.

Definition at line 1475 of file CodeViewDebug.cpp.

References llvm::DebugHandlerBase::Asm, assert(), llvm::classifyEHPersonality(), llvm::MCStreamer::emitCVFuncIdDirective(), llvm::MachineFunction::exposesReturnsTwice(), llvm::MachineInstr::FrameSetup, llvm::Triple::getArch(), llvm::MachineFrameInfo::getCVBytesOfCalleeSavedRegisters(), llvm::DebugLoc::getFnDebugLoc(), llvm::MachineFunction::getFrameInfo(), llvm::TargetSubtargetInfo::getFrameLowering(), llvm::MachineFunction::getFunction(), llvm::AsmPrinter::getFunctionBegin(), llvm::MachineModuleInfo::getModule(), llvm::MachineFrameInfo::getOffsetAdjustment(), llvm::TargetMachine::getOptLevel(), llvm::Function::getPersonalityFn(), llvm::TargetSubtargetInfo::getRegisterInfo(), llvm::MachineFrameInfo::getStackSize(), llvm::MachineFunction::getSubtarget(), llvm::Module::getTargetTriple(), llvm::Function::hasFnAttribute(), llvm::TargetFrameLowering::hasFP(), llvm::MachineFunction::hasInlineAsm(), llvm::Function::hasOptNone(), llvm::Function::hasOptSize(), llvm::Function::hasPersonalityFn(), llvm::Function::hasProfileData(), llvm::Function::hasStackProtectorFnAttr(), llvm::MachineFrameInfo::hasStackProtectorIndex(), llvm::MachineFrameInfo::hasVarSizedObjects(), llvm::isAsynchronousEHPersonality(), isThumb(), MBB, MI, llvm::DebugHandlerBase::MMI, llvm::None, llvm::DebugHandlerBase::PrologEndLoc, llvm::DebugHandlerBase::requestLabelAfterInsn(), llvm::DebugHandlerBase::requestLabelBeforeInsn(), llvm::Triple::thumb, llvm::AsmPrinter::TM, and TRI.

◆ beginInstruction()

void CodeViewDebug::beginInstruction ( const MachineInstr MI)
overridevirtual

◆ beginModule()

void CodeViewDebug::beginModule ( Module M)
overridevirtual

◆ endFunctionImpl()

void CodeViewDebug::endFunctionImpl ( const MachineFunction MF)
overrideprotectedvirtual

◆ endModule()

void CodeViewDebug::endModule ( )
overridevirtual

◆ moduleIsInFortran()

bool llvm::CodeViewDebug::moduleIsInFortran ( )
inlineprotected

Check if the current module is in Fortran.

Definition at line 511 of file CodeViewDebug.h.


The documentation for this class was generated from the following files: