DwarfExpression.cpp File Reference

#include "DwarfExpression.h"
#include "DwarfCompileUnit.h"
#include "llvm/ADT/APInt.h"
#include "llvm/ADT/SmallBitVector.h"
#include "llvm/BinaryFormat/Dwarf.h"
#include "llvm/CodeGen/Register.h"
#include "llvm/CodeGen/TargetRegisterInfo.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/MC/MCAsmInfo.h"
#include "llvm/Support/ErrorHandling.h"
#include <algorithm>

Go to the source code of this file.

Macros
#define	DEBUG_TYPE   "dwarfdebug"

Functions
static bool	isRemainingExpressionComplex (const DIExpressionCursor &ExprCursor)
	Return whether the rest of the expression needs the complex register path.
static bool	isMemoryLocation (DIExpressionCursor ExprCursor)
	Assuming a well-formed expression, match "DW_OP_deref* DW_OP_LLVM_fragment?

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "dwarfdebug"

Definition at line 27 of file DwarfExpression.cpp.

Function Documentation

isMemoryLocation()

bool isMemoryLocation ( DIExpressionCursor ExprCursor )

static

Assuming a well-formed expression, match "DW_OP_deref* DW_OP_LLVM_fragment?

".

Definition at line 530 of file DwarfExpression.cpp.

References llvm::dwarf::DW_OP_LLVM_fragment, and llvm::DIExpressionCursor::take().

isRemainingExpressionComplex()

bool isRemainingExpressionComplex ( const DIExpressionCursor & ExprCursor )

static

Return whether the rest of the expression needs the complex register path.

We use this to decide whether we can emit a simple register location and whether a subregister needs to be masked. Non-emitting operations don't affect either decision, so look past them.

Definition at line 33 of file DwarfExpression.cpp.

References llvm::dwarf::DW_OP_LLVM_fragment.

Referenced by llvm::DwarfExpression::addMachineRegExpression().