Detailed Description

Register allocation calling convention.

(allocation policy, arrays of GP and FP registers)

Public Attributes
argreg_policy_t	policy
	argument policy

int	nregs
	max number of registers that can be used in a call

intvec_t	gpregs
	array of gp registers

intvec_t	fpregs
	array of fp registers

Public Member Functions
	callregs_t ()
	Constructor.

	callregs_t (cm_t cc)
	Constructor - initialize with the given request (see init_regs())

void	init_regs (cm_t cc)
	Init policy & registers for given CC.

void	set (argreg_policy_t _policy, const int gprs, const int fprs)
	Init policy & registers (arrays are -1-terminated)

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. More...

Static Public Member Functions
static int	regcount (cm_t cc)
	Get max number of registers may be used in a function call.

static int	findreg (const intvec_t &regs, int r)

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. More...

Member Function Documentation

inline

Get register indexes within GP/FP arrays.

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

inlineprotected

Search for register r in gprs and fprs.

If found, fill gp_ind and fp_ind based on policy

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