callregs_t Class Reference

Register allocation calling convention. More...

#include <typeinf.hpp>

Public Types
enum	reg_kind_t { GPREGS , FPREGS }
	Init registers (sequential) More...

Public Member Functions
	callregs_t ()
	Constructor.
	callregs_t (callcnv_t cc)
	Constructor - initialize with the given request (see init_regs())
void	swap (callregs_t &r)
	swap two instances
bool	init_regs (callcnv_t cc)
	Init policy & registers for given CC.
bool	by_slots () const
void	set (argreg_policy_t _policy, const int *gprs, const int *fprs)
	Init policy & registers (arrays are -1-terminated)
void	append_registers (reg_kind_t kind, int first_reg, int last_reg)
void	set_registers (reg_kind_t kind, int first_reg, int last_reg)
void	reset ()
	Set policy and registers to invalid values.
bool	reginds (int *gp_ind, int *fp_ind, int r) const
	Get register indexes within GP/FP arrays.

Static Public Member Functions
static int	regcount (callcnv_t cc)
	Get max number of registers may be used in a function call.
static int	findreg (const intvec_t &regs, int r)

Public Attributes
argreg_policy_t	policy = ARGREGS_POLICY_UNDEFINED
	argument policy
int	nregs = 0
	max number of registers that can be used in a call
intvec_t	gpregs
	array of gp registers (general purpose)
intvec_t	fpregs
	array of fp registers (floating point)

Protected Member Functions
bool	findregs (int *gp_ind, int *fp_ind, int r, const intvec_t &gprs, const intvec_t &fprs) const
	Search for register r in gprs and fprs.

Detailed Description

Register allocation calling convention.

(allocation policy, arrays of GP and FP registers)

Member Enumeration Documentation

reg_kind_t

enum callregs_t::reg_kind_t

Init registers (sequential)

Enumerator
GPREGS
FPREGS

Constructor & Destructor Documentation

callregs_t() [1/2]

callregs_t::callregs_t ( )

inline

Constructor.

callregs_t() [2/2]

callregs_t::callregs_t ( callcnv_t cc )

inline

Constructor - initialize with the given request (see init_regs())

Member Function Documentation

swap()

void callregs_t::swap ( callregs_t & r )

inline

swap two instances

init_regs()

bool callregs_t::init_regs ( callcnv_t cc )

inline

Init policy & registers for given CC.

by_slots()

bool callregs_t::by_slots ( ) const

inline

set()

void callregs_t::set ( argreg_policy_t _policy, const int * gprs, const int * fprs )

inline

Init policy & registers (arrays are -1-terminated)

append_registers()

void callregs_t::append_registers ( reg_kind_t kind, int first_reg, int last_reg )

inline

set_registers()

void callregs_t::set_registers ( reg_kind_t kind, int first_reg, int last_reg )

inline

reset()

void callregs_t::reset ( )

inline

Set policy and registers to invalid values.

regcount()

int callregs_t::regcount ( callcnv_t cc )

inlinestatic

Get max number of registers may be used in a function call.

findreg()

int callregs_t::findreg ( const intvec_t & regs, int r )

inlinestatic

reginds()

bool callregs_t::reginds ( int * gp_ind, int * fp_ind, int r ) const

inline

Get register indexes within GP/FP arrays.

(-1 -> is not present in the corresponding array)

findregs()

bool callregs_t::findregs ( int * gp_ind, int * fp_ind, int r, const intvec_t & gprs, const intvec_t & fprs ) const

inlineprotected

Search for register r in gprs and fprs.

If found, fill gp_ind and fp_ind based on policy

Member Data Documentation

policy

argreg_policy_t callregs_t::policy = ARGREGS_POLICY_UNDEFINED

argument policy

nregs

int callregs_t::nregs = 0

max number of registers that can be used in a call

gpregs

intvec_t callregs_t::gpregs

array of gp registers (general purpose)

fpregs

intvec_t callregs_t::fpregs

array of fp registers (floating point)

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

• ida-sdk/src/include/typeinf.hpp