#define _TV_H_
# include "irmode.h"
-# include "entity.h"
+/* # include "entity.h" */
# include "irnode.h" /* for pnc_number enum */
*/
tarval *new_tarval_from_long(long l, ir_mode *mode);
-/**
+/** Return value as long if possible.
+ *
* This returns a long int with the value represented value, or
* gibberish, depending on the size of long int and the size of the
* stored value. It works for e.g. 1 as mode_Ls, but might not work for
* get_mode_max(mode_Ls).
* This will overflow silently, so use only if you know what
* you are doing! (better check with tarval_is_long()...)
+ * Works only for int modes, even not for character modes!
*/
-long tarval_to_long(tarval *tv);
+long get_tarval_long(tarval *tv);
/**
* This validates if tarval_to_long() will return a satisfying
* This will overflow silently, so use only if you know what
* you are doing! (better check with tarval_is_long...)
*/
-long double tarval_to_double(tarval *tv);
+long double get_tarval_double(tarval *tv);
/**
* This validates if tarval_to_double() will return a satisfying
*/
int tarval_is_double(tarval *tv);
-/**
- * Construct a tarval that represents the address of the entity.
- *
- * The address must be constant, the entity must have as owner the global type.
- */
-tarval *new_tarval_from_entity (entity *ent, ir_mode *mode);
-
-/**
- * Returns the associated entity of a tarval. Asserts if tarval does not
- * contain an entity.
- */
-#define get_tarval_entity tarval_to_entity
-entity *tarval_to_entity(tarval *tv);
-
-/**
- * Returns non-zero if a the given tarval represents an entity.
- */
-int tarval_is_entity(tarval *tv);
/** ********** Access routines for tarval fields ********** **/
/** Returns the mode of the tarval. */
ir_mode *get_tarval_mode (tarval *tv);
+/** Returns the contents of the 'link' field of the tarval */
+/* void *get_tarval_link (tarval*); */
+
/* Testing properties of the represented values */
/**
* Returns 1 if tv is negative
*
- * @param a the tarval
+ * @param a the tarval
*/
int tarval_is_negative(tarval *a);
/**
* Returns 1 if tv is null
*
- * @param a the tarval
+ * @param a the tarval
*/
int tarval_is_null(tarval *a);
/**
* Returns 1 if tv is the "one"
*
- * @param a the tarval
+ * @param a the tarval
*/
int tarval_is_one(tarval *a);
/* ******************** Arithmethic operations on tarvals ******************** */
+typedef enum _tarval_int_overflow_mode_t {
+ TV_OVERFLOW_BAD, /**< tarval module will return tarval_bad if a overflow occurs */
+ TV_OVERFLOW_WRAP, /**< tarval module will overflow will be ignored, wrap around occurs */
+ TV_OVERFLOW_SATURATE /**< tarval module will saturate the overflow */
+} tarval_int_overflow_mode_t;
+
+/**
+ * Sets the overflow mode for integer operations.
+ */
+void tarval_set_integer_overflow_mode(tarval_int_overflow_mode_t ov_mode);
+
+/**
+ * Get the overflow mode for integer operations.
+ */
+tarval_int_overflow_mode_t tarval_get_integer_overflow_mode(void);
+
/**
* Compares two tarvals
*
/** Rotation. */
tarval *tarval_rot(tarval *a, tarval *b);
+/** Carry flag of the last operation */
+int tarval_carry(void);
+
/* *********** Output of tarvals *********** */
/**
* However, we can do this in the tarval much simplier...
*/
typedef enum {
- TVO_NATIVE, /**< the default output mode, depends on the mode */
- TVO_HEX, /**< use hex representation, always possible */
- TVO_DECIMAL, /**< use decimal representation */
- TVO_OCTAL, /**< use octal representation */
- TVO_BINARY, /**< use binary representation */
- TVO_FLOAT, /**< use floating point representation (i.e 1.342e-2)*/
+ TVO_NATIVE, /**< the default output mode, depends on the mode */
+ TVO_HEX, /**< use hex representation, always possible */
+ TVO_DECIMAL, /**< use decimal representation */
+ TVO_OCTAL, /**< use octal representation */
+ TVO_BINARY, /**< use binary representation */
+ TVO_FLOAT, /**< use floating point representation (i.e 1.342e-2)*/
TVO_HEXFLOAT /**< use hexadecimal floating point representation (i.e 0x1.ea32p-12)*/
} tv_output_mode;
* of a tarval of a mode.
*/
typedef struct tarval_mode_info {
- tv_output_mode mode_output; /**< if != TVO_NATIVE select a special mode */
- const char *mode_prefix; /**< if set, this prefix will be printed
- before a value of this mode */
- const char *mode_suffix; /**< if set, this suffix will be printed
- after a value of this mode */
+ tv_output_mode mode_output; /**< if != TVO_NATIVE select a special mode */
+ const char *mode_prefix; /**< if set, this prefix will be printed
+ before a value of this mode */
+ const char *mode_suffix; /**< if set, this suffix will be printed
+ after a value of this mode */
} tarval_mode_info;
/**
*
* This functions stores the modinfo, so DO NOT DESTROY it.
*
- * @param mode a ir_mode that should be associated
- * @param modeinfo the output format info
+ * @param mode a ir_mode that should be associated
+ * @param modeinfo the output format info
*
* @return zero on success.
*/
-int tarval_set_mode_output_option(ir_mode *mode, const tarval_mode_info *modeinfo);
+int set_tarval_mode_output_option(ir_mode *mode, const tarval_mode_info *modeinfo);
/**
* Returns the output options of one mode.
*
* This functions returns the modinfo of a given mode.
*
- * @param mode a ir_mode that should be associated
+ * @param mode a ir_mode that should be associated
*
* @return the output option
*/
-const tarval_mode_info *tarval_get_mode_output_option(ir_mode *mode);
+const tarval_mode_info *get_tarval_mode_output_option(ir_mode *mode);
/**
* Returns Bit representation of a tarval value, as string of '0' and '1'
* irmode.h for the definition of the ir_mode struct
* the size member of aforementioned struct
*/
-char *tarval_bitpattern(tarval *tv);
+char *get_tarval_bitpattern(tarval *tv);
/**
* Returns the bitpattern of the bytes_ofs byte.
* - concatenation (endian dependance MUST be handled by the CALLER)
* - bitwise logical operations to select/mask bits
*
- * @param tv the tarval
- * @param byte_ofs the byte offset
+ * @param tv the tarval
+ * @param byte_ofs the byte offset
*
* @note
* The result of this funcion is undefined if the mode is neither integer nor float.
*/
-unsigned char tarval_sub_bits(tarval *tv, unsigned byte_ofs);
+unsigned char get_tarval_sub_bits(tarval *tv, unsigned byte_ofs);
/**
* Return values of tarval classify
*/
typedef enum _tarval_classification_t {
- TV_CLASSIFY_NULL = 0, /**< the tarval represents the additive neutral element */
- TV_CLASSIFY_ONE = +1, /**< the tarval represents the multiplicative neutral element */
- TV_CLASSIFY_ALL_ONE = -1, /**< the tarval represents the bitwise-and neutral element */
- TV_CLASSIFY_OTHER = 2 /**< all other tarvals */
+ TV_CLASSIFY_NULL = 0, /**< the tarval represents the additive neutral element */
+ TV_CLASSIFY_ONE = +1, /**< the tarval represents the multiplicative neutral element */
+ TV_CLASSIFY_ALL_ONE = -1, /**< the tarval represents the bitwise-and neutral element */
+ TV_CLASSIFY_OTHER = 2 /**< all other tarvals */
} tarval_classification_t;
/**
* - TV_CLASSIFY_ALL_ONE for bitwise-and neutral
* - TV_CLASSIFY_OTHER else
*/
-tarval_classification_t tarval_classify(tarval *tv);
+tarval_classification_t classify_tarval(tarval *tv);
-/**
- * Initialization of the tarval module.
- *
- * Call before init_mode().
- */
-void init_tarval_1(void);
-
-/**
- * Initialization of the tarval module.
- *
- * Call after init_mode().
- */
-void init_tarval_2(void);
-void finish_tarval(void);
/**
* Output of tarvals to a buffer.