cfa_reg Struct Reference

#include <dwarf2out.h>

Public Member Functions
cfa_reg &	set_by_dwreg (unsigned int r)
bool	operator== (const cfa_reg &other) const
bool	operator!= (const cfa_reg &other) const

Data Fields
unsigned int	reg
unsigned short	span
unsigned short	span_width

Detailed Description

This represents a register, in DWARF_FRAME_REGNUM space, for use in CFA
definitions and expressions.
Most architectures only need a single register number, but some (amdgcn)
have pointers that span multiple registers.  DWARF permits arbitrary
register sets but existing use-cases only require contiguous register
sets, as represented here.   

Member Function Documentation

operator!=()

bool cfa_reg::operator!= ( const cfa_reg & other ) const

inline

operator==()

bool cfa_reg::operator== ( const cfa_reg & other ) const

inline

References reg, span, and span_width.

set_by_dwreg()

cfa_reg & cfa_reg::set_by_dwreg ( unsigned int r )

inline

References r, reg, span, and span_width.

Referenced by create_pseudo_cfg(), dump_cfi_row(), dwarf2out_frame_debug_cfa_offset(), get_cfa_from_loc_descr(), initial_return_save(), and lookup_cfa_1().

Field Documentation

reg

unsigned int cfa_reg::reg

Referenced by build_cfa_aligned_loc(), build_cfa_loc(), build_span_loc(), dwarf2out_flush_queued_reg_saves(), dwarf2out_frame_debug_cfa_restore(), dwarf2out_frame_debug_expr(), dwf_cfa_reg(), get_cfa_from_loc_descr(), initial_return_save(), operator!=(), operator==(), operator==(), queue_reg_save(), reg_saved_in(), and set_by_dwreg().

span

unsigned short cfa_reg::span

Referenced by build_cfa_loc(), build_span_loc(), dwarf2out_frame_debug_cfa_expression(), dwarf2out_frame_debug_cfa_offset(), dwarf2out_frame_debug_cfa_restore(), dwarf2out_frame_debug_cfa_val_expression(), dwarf2out_frame_debug_expr(), dwf_cfa_reg(), get_cfa_from_loc_descr(), operator==(), and set_by_dwreg().

span_width

unsigned short cfa_reg::span_width

Referenced by build_span_loc(), dwf_cfa_reg(), get_cfa_from_loc_descr(), operator==(), and set_by_dwreg().

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The documentation for this struct was generated from the following file:

• dwarf2out.h