* File name: ir/ir/irmode.h
* Purpose: Data modes of operations.
* Author: Martin Trapp, Christian Schaefer
- * Modified by: Goetz Lindenmaier, Mathias Heil
+ * Modified by: Goetz Lindenmaier, Mathias Heil, Michael Beck
* Created:
* CVS-ID: $Id$
- * Copyright: (c) 1998-2003 Universität Karlsruhe
+ * Copyright: (c) 1998-2007 Universität Karlsruhe
* Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
*/
* Predefined mode according to tech report 1999-14.
*/
typedef enum { /* irm is short for `ir mode' */
- irm_BB, /**< basic block */
- irm_X, /**< execution */
- irm_F, /**< float(32) */
- irm_D, /**< double(64) */
- irm_E, /**< extended(80) */
- irm_Bs, /**< signed byte(8) */
- irm_Bu, /**< unsigned byte(8) */
- irm_Hs, /**< signed short(16) */
- irm_Hu, /**< unsigned short(16) */
- irm_Is, /**< signed int(32) */
- irm_Iu, /**< unsigned int(32) */
- irm_Ls, /**< signed long(64) */
- irm_Lu, /**< unsigned long(64) */
- irm_C, /**< character */
- irm_P, /**< pointer */
- irm_b, /**< internal boolean */
- irm_M, /**< memory */
- irm_T, /**< tuple */
- irm_U, /**< unicode character */
- irm_ANY, /**< undefined mode */
- irm_BAD, /**< bad mode */
- irm_max /**< maximum value for modecode */
+ irm_BB, /**< basic block */
+ irm_X, /**< execution */
+ irm_F, /**< float(32) */
+ irm_D, /**< double(64) */
+ irm_E, /**< extended(80) */
+ irm_Bs, /**< signed byte(8) */
+ irm_Bu, /**< unsigned byte(8) */
+ irm_Hs, /**< signed short(16) */
+ irm_Hu, /**< unsigned short(16) */
+ irm_Is, /**< signed int(32) */
+ irm_Iu, /**< unsigned int(32) */
+ irm_Ls, /**< signed long(64) */
+ irm_Lu, /**< unsigned long(64) */
+ irm_C, /**< character */
+ irm_P, /**< pointer */
+ irm_b, /**< internal boolean */
+ irm_M, /**< memory */
+ irm_T, /**< tuple */
+ irm_U, /**< unicode character */
+ irm_ANY, /**< undefined mode */
+ irm_BAD, /**< bad mode */
+ irm_max /**< maximum value for modecode */
} modecode;
/** These values represent the different mode classes of value representations.
*/
typedef enum {
- /* Predefined sorts of modes */
- irms_auxiliary, /**< Only for Firm use. Not extensible. (irm_T) */
- irms_control_flow, /**< Marks all control flow modes. Not extensible. (irm_BB, irm_X) */
- irms_memory, /**< Marks the memory mode. Not extensible. (irm_M) */
- irms_internal_boolean, /**< Internal boolean representation.
- Storing to memory impossible, convert first. (irm_b) */
- /** user-extensible sorts of modes **/
- irms_int_number, /**< A mode to represent int numbers.
- Integer computations can be performed. */
- irms_float_number, /**< A mode to represent float numbers.
- Floating point computations can be performed. */
- irms_reference, /**< A mode to represent entities.
- Restricted int computations can be performed */
- irms_character /**< A mode to represent characters/symbols
- ?? Are computations allowed? as int?? */
+ /* Predefined sorts of modes */
+ irms_auxiliary, /**< Only for Firm use. Not extensible. (irm_T) */
+ irms_control_flow, /**< Marks all control flow modes. Not extensible. (irm_BB, irm_X) */
+ irms_memory, /**< Marks the memory mode. Not extensible. (irm_M) */
+ irms_internal_boolean, /**< Internal boolean representation.
+ Storing to memory impossible, convert first. (irm_b) */
+ /* user-extensible sorts of modes */
+ irms_int_number, /**< A mode to represent int numbers.
+ Integer computations can be performed. */
+ irms_float_number, /**< A mode to represent float numbers.
+ Floating point computations can be performed. */
+ irms_reference, /**< A mode to represent entities.
+ Restricted int computations can be performed */
+ irms_character /**< A mode to represent characters/symbols
+ ?? Are computations allowed? as int?? */
} mode_sort;
/** These values represent the different arithmetic operations possible with a mode.
Further arithmetics can be defined, e.g., for @@@ modes.
*/
typedef enum {
- irma_uninitialized = 0,
- irma_none = 1, /**< For modes for which no representation is specified.
- These are modes of sort auxiliary, internal_boolean and
- character. */
- irma_twos_complement = 2, /**< Values of the mode are represented as two's complement.
- Only legal for modes of sort int_number and reference. */
- irma_ones_complement, /**< Values of the mode are represented as one's complement.
- Only legal for modes of sort int_number and reference. */
- irma_int_BCD, /**< Values of the mode are represented as binary coded decimals.
- Only legal for modes of sort int_number and reference. */
- irma_ieee754 = 256, /**< Values of the mode are represented according to ieee754
- floatingpoint standard. Only legal for modes of sort float_number. */
- irma_float_BCD, /**< Values of the mode are represented as binary coded decimals
- according to @@@ which standards??? Only legal for modes of
- sort float_number. */
- irma_max
+ irma_uninitialized = 0,
+ irma_none = 1, /**< For modes for which no representation is specified.
+ These are modes of sort auxiliary, internal_boolean and character. */
+ irma_twos_complement = 2, /**< Values of the mode are represented as two's complement.
+ Only legal for modes of sort int_number and reference. */
+ irma_ones_complement, /**< Values of the mode are represented as one's complement.
+ Only legal for modes of sort int_number and reference. */
+ irma_int_BCD, /**< Values of the mode are represented as binary coded decimals.
+ Only legal for modes of sort int_number and reference. */
+ irma_ieee754 = 256, /**< Values of the mode are represented according to ieee754
+ floatingpoint standard. Only legal for modes of sort float_number. */
+ irma_float_BCD, /**< Values of the mode are represented as binary coded decimals
+ according to @@@ which standards??? Only legal for modes of
+ sort float_number. */
+ irma_max
} mode_arithmetic;
/**
* Creates a new mode.
*
- * @param name the name of the mode to be created
- * @param sort the mode_sort of the mode to be created
- * @param bit_size number of bits this mode allocate
- * @param sign non-zero if this is a signed mode
+ * @param name the name of the mode to be created
+ * @param sort the mode_sort of the mode to be created
+ * @param bit_size number of bits this mode allocate
+ * @param sign non-zero if this is a signed mode
* @param arithmetic arithmetic operations possible with a mode
* @param modulo_shift Is ignored for modes other than integer.
*
* min, max and can be retrieved using the get_mode_* functions
*
* @return
- * The new mode or NULL on error.
+ * The new mode or NULL on error.
*
* @note
- * It is allowed to construct the default modes. So, a call
- * new_ir_mode("Is", irms_int_number, 32, 1, irma_twos_complement, 32) will return mode_Is.
+ * It is allowed to construct the default modes. So, a call
+ * new_ir_mode("Is", irms_int_number, 32, 1, irma_twos_complement, 32) will return mode_Is.
*/
ir_mode *new_ir_mode(const char *name, mode_sort sort, int bit_size, int sign, mode_arithmetic arithmetic, unsigned int modulo_shift);
/**
* Creates a new vector mode.
*
- * @param name the name of the mode to be created
- * @param sort the mode_sort of the mode to be created
- * @param bit_size number of bits for one element of this mode
+ * @param name the name of the mode to be created
+ * @param sort the mode_sort of the mode to be created
+ * @param bit_size number of bits for one element of this mode
* @param num_of_elem number of elements in this vector mode
- * @param sign non-zero if this is a signed mode
+ * @param sign non-zero if this is a signed mode
* @param arithmetic arithmetic operations possible with a mode
* @param modulo_shift Is ignored for modes other than integer.
*
* min, max and can be retrieved using the get_mode_* functions
*
* @return
- * The new mode or NULL on error.
+ * The new mode or NULL on error.
*/
ir_mode *new_ir_vector_mode(const char *name, mode_sort sort, int bit_size, unsigned num_of_elem, int sign,
- mode_arithmetic arithmetic, unsigned int modulo_shift );
+ mode_arithmetic arithmetic, unsigned int modulo_shift);
/**
- * Checks whether a pointer points to a mode.
+ * Checks whether a pointer points to a mode.
*
- * @param thing an arbitrary pointer
+ * @param thing an arbitrary pointer
*
- * @return
- * true if the thing is a mode, else false
+ * @return
+ * true if the thing is a mode, else false
*/
int is_mode(void *thing);
extern ir_mode *mode_P; /**< pointer */
extern ir_mode *mode_P_code; /**< A pointer mode that is set by the client of libfirm. This mode
- represents the pointer size of the target machine code addresses. Is initialized
- to mode_P. */
+ represents the pointer size of the target machine code addresses. Is initialized
+ to mode_P. */
extern ir_mode *mode_P_data; /**< A pointer mode that is set by the client of libfirm. This mode
- represents the pointer size of the target machine data addresses. Is initialized
- to mode_P. */
+ represents the pointer size of the target machine data addresses. Is initialized
+ to mode_P. */
/* -- Auxiliary modes necessary for the Firm representation -- */
extern ir_mode *mode_b; /**< internal boolean */
int mode_overflow_on_unary_Minus(const ir_mode *mode);
/**
- * Returns non-zero if the mode has a reversed wrap-aound
+ * Returns non-zero if the mode has a reversed wrap-around
* logic, especially (a + x) - x == a.
* This is normally true for integer modes, not for floating
* point modes.
*/
int mode_wrap_around(const ir_mode *mode);
+/**
+ * Return the signed integer equivalent mode for an reference mode.
+ */
+ir_mode *get_reference_mode_signed_eq(ir_mode *mode);
+
+/**
+ * Sets the signed integer equivalent mode for an reference mode.
+ */
+void set_reference_mode_signed_eq(ir_mode *ref_mode, ir_mode *int_mode);
+
+/**
+ * Return the unsigned integer equivalent mode for an reference mode.
+ */
+ir_mode *get_reference_mode_unsigned_eq(ir_mode *mode);
+
+/**
+ * Sets the unsigned integer equivalent mode for an reference mode.
+ */
+void set_reference_mode_unsigned_eq(ir_mode *ref_mode, ir_mode *int_mode);
+
#endif /* _FIRM_IR_IRMODE_H_ */
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