irmode.h File Reference

Data modes of operations. More...

#include "firm_types.h"
#include "begin.h"
#include <stddef.h>
#include "end.h"

Go to the source code of this file.

Enumerations
enum	ir_mode_arithmetic {   irma_none = 1, irma_twos_complement = 2, irma_ieee754 = 256, irma_x86_extended_float,   irma_last = irma_x86_extended_float }
	These values represent the different arithmetic operations possible with a mode. More...

Functions
ir_mode *	new_int_mode (const char *name, ir_mode_arithmetic arithmetic, unsigned bit_size, int sign, unsigned modulo_shift)
	Creates a new mode.
ir_mode *	new_reference_mode (const char *name, ir_mode_arithmetic arithmetic, unsigned bit_size, unsigned modulo_shift)
	Create a new reference mode.
ir_mode *	new_float_mode (const char *name, ir_mode_arithmetic arithmetic, unsigned exponent_size, unsigned mantissa_size)
	Create a new ieee754 float mode.
int	is_mode (const void *thing)
	Checks whether a pointer points to a mode.
ident *	get_mode_ident (const ir_mode *mode)
	Returns the ident* of the mode.
const char *	get_mode_name (const ir_mode *mode)
	Returns the null-terminated name of this mode.
unsigned	get_mode_size_bits (const ir_mode *mode)
	Returns the size of values of the mode in bits.
unsigned	get_mode_size_bytes (const ir_mode *mode)
	Returns the size of values of the mode in bytes.
int	get_mode_sign (const ir_mode *mode)
	Returns the signess of a mode.
ir_mode_arithmetic	get_mode_arithmetic (const ir_mode *mode)
	Returns the arithmetic of a mode.
unsigned int	get_mode_modulo_shift (const ir_mode *mode)
	Returns the modulo shift attribute.
void *	get_mode_link (const ir_mode *mode)
	Returns the stored intermediate information.
void	set_mode_link (ir_mode *mode, void *l)
	Stores new intermediate information.
ir_tarval *	get_mode_min (ir_mode *mode)
	Returns the smallest representable value of a given mode.
ir_tarval *	get_mode_max (ir_mode *mode)
	Returns the biggest representable value o f a given mode.
ir_tarval *	get_mode_null (ir_mode *mode)
	Returns the value Zero represented in this mode.
ir_tarval *	get_mode_one (ir_mode *mode)
	Returns the value One, represented in this mode.
ir_tarval *	get_mode_minus_one (ir_mode *mode)
	Returns the value Minus One, represented in this mode.
ir_tarval *	get_mode_all_one (ir_mode *mode)
	Returns the value where all bits are One, represented in this mode.
ir_tarval *	get_mode_infinite (ir_mode *mode)
	Returns the positive infinite value of a mode.
ir_tarval *	get_mode_NAN (ir_mode *mode)
	Returns the NAN value of a given mode.
ir_mode *	get_modeF (void)
	Returns float mode.
ir_mode *	get_modeD (void)
	Returns double mode.
ir_mode *	get_modeQ (void)
	Returns quadruple prevision mode.
ir_mode *	get_modeBs (void)
	Returns byte signed mode.
ir_mode *	get_modeBu (void)
	Returns byte unsigned mode.
ir_mode *	get_modeHs (void)
	Returns halfword signed mode.
ir_mode *	get_modeHu (void)
	Returns halfword unsigned mode.
ir_mode *	get_modeIs (void)
	Returns integer signed mode.
ir_mode *	get_modeIu (void)
	Returns integer unsigned mode.
ir_mode *	get_modeLs (void)
	Returns long signed mode.
ir_mode *	get_modeLu (void)
	Returns long unsigned mode.
ir_mode *	get_modeLLs (void)
	Returns long long signed mode.
ir_mode *	get_modeLLu (void)
	Returns long long unsigned mode.
ir_mode *	get_modeP (void)
	Returns pointer mode.
ir_mode *	get_modeb (void)
	Returns internal boolean mode.
ir_mode *	get_modeX (void)
	Returns control-flow mode.
ir_mode *	get_modeBB (void)
	Returns Basic-Block mode.
ir_mode *	get_modeM (void)
	Returns memory mode.
ir_mode *	get_modeT (void)
	Returns tuple mode.
ir_mode *	get_modeANY (void)
	Returns ANY mode.
ir_mode *	get_modeBAD (void)
	Returns BAD mode.
ir_mode *	get_modeP_code (void)
	Returns the machine specific pointer mode for code addresses.
ir_mode *	get_modeP_data (void)
	Returns the machine specific pointer mode for data addresses.
void	set_modeP_code (ir_mode *p)
	Sets the machine specific pointer mode for code addresses.
void	set_modeP_data (ir_mode *p)
	Sets the machine specific pointer mode for data addresses.
int	mode_is_signed (const ir_mode *mode)
	Returns 1 if mode is signed, 0 otherwise.
int	mode_is_float (const ir_mode *mode)
	Returns 1 if mode is for floatingpoint numbers, 0 otherwise.
int	mode_is_int (const ir_mode *mode)
	Returns 1 if mode is for integer numbers, 0 otherwise.
int	mode_is_reference (const ir_mode *mode)
	Returns 1 if mode is for references/pointers, 0 otherwise.
int	mode_is_num (const ir_mode *mode)
	Returns 1 if mode is for numeric values, 0 otherwise.
int	mode_is_data (const ir_mode *mode)
	Returns 1 if mode is for data values, 0 otherwise.
int	mode_is_datab (const ir_mode *mode)
	Returns 1 if mode is for data values or internal booleans, 0 otherwise.
int	mode_is_dataM (const ir_mode *mode)
	Returns 1 if mode is for data values or memory, 0 otherwise.
int	smaller_mode (const ir_mode *sm, const ir_mode *lm)
	Returns true if a value of mode sm can be converted to mode lm without loss.
int	values_in_mode (const ir_mode *sm, const ir_mode *lm)
	Returns true if no information is lost when converting a value of mode sm into mode lm (and back to mode sm).
ir_mode *	find_unsigned_mode (const ir_mode *mode)
	Returns a matching unsigned mode for a given integer signed mode.
ir_mode *	find_signed_mode (const ir_mode *mode)
	Returns a matching signed mode for a given integer unsigned mode.
ir_mode *	find_double_bits_int_mode (const ir_mode *mode)
	Returns an integer mode with 2*n bits for a given integer mode with n bits.
int	mode_honor_signed_zeros (const ir_mode *mode)
	Returns non-zero if the given mode honors signed zero's, i.e., a +0 and a -0 exists and handled differently.
int	mode_overflow_on_unary_Minus (const ir_mode *mode)
	Returns non-zero if the given mode might overflow on unary Minus.
int	mode_wrap_around (const ir_mode *mode)
	Returns non-zero if the mode has a reversed wrap-around logic, especially (a + x) - x == a.
ir_mode *	get_reference_mode_signed_eq (ir_mode *mode)
	Returns the signed integer equivalent mode for an reference mode.
void	set_reference_mode_signed_eq (ir_mode *ref_mode, ir_mode *int_mode)
	Sets the signed integer equivalent mode for an reference mode.
ir_mode *	get_reference_mode_unsigned_eq (ir_mode *mode)
	Returns the unsigned integer equivalent mode for an reference mode.
void	set_reference_mode_unsigned_eq (ir_mode *ref_mode, ir_mode *int_mode)
	Sets the unsigned integer equivalent mode for an reference mode.
unsigned	get_mode_mantissa_size (const ir_mode *mode)
	Returns size of mantissa in bits (for float modes).
unsigned	get_mode_exponent_size (const ir_mode *mode)
	Returns size of exponent in bits (for float modes)
int	is_reinterpret_cast (const ir_mode *src, const ir_mode *dst)
	Returns non-zero if the cast from mode src to mode dst is a reinterpret cast (ie.
ir_type *	get_type_for_mode (const ir_mode *mode)
	Returns the primitive type matching the given mode.
size_t	ir_get_n_modes (void)
	Returns number of known modes.
ir_mode *	ir_get_mode (size_t num)
	Returns known mode number num.

Variables
ir_mode *	mode_M
	memory
ir_mode *	mode_F
	ieee754 binary32 float (single precision)
ir_mode *	mode_D
	ieee754 binary64 float (double precision)
ir_mode *	mode_Q
	ieee754 binary128 float (quadruple precision)
ir_mode *	mode_Bs
	int8
ir_mode *	mode_Bu
	uint8
ir_mode *	mode_Hs
	int16
ir_mode *	mode_Hu
	uint16
ir_mode *	mode_Is
	int32
ir_mode *	mode_Iu
	uint32
ir_mode *	mode_Ls
	int64
ir_mode *	mode_Lu
	uint64
ir_mode *	mode_LLs
	int128
ir_mode *	mode_LLu
	uint128
ir_mode *	mode_P
	pointer
ir_mode *	mode_P_code
	A pointer mode that is set by the client of libfirm.
ir_mode *	mode_P_data
	A pointer mode that is set by the client of libfirm.
ir_mode *	mode_b
	internal boolean
ir_mode *	mode_X
	execution
ir_mode *	mode_BB
	block
ir_mode *	mode_T
	tuple (none)
ir_mode *	mode_ANY
	undefined mode
ir_mode *	mode_BAD
	bad mode

Detailed Description

Data modes of operations.

Author

Martin Trapp, Christian Schaefer, Goetz Lindenmaier, Mathias Heil, Michael Beck

Definition in file irmode.h.