179 lines
5.4 KiB
C
179 lines
5.4 KiB
C
/*----------------------------------------------------------------------
|
|
SDCCval.h - value wrapper related header information
|
|
Written By - Sandeep Dutta . sandeep.dutta@usa.net (1997)
|
|
|
|
This program is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option) any
|
|
later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
In other words, you are welcome to use, share and improve this program.
|
|
You are forbidden to forbid anyone else to use, share and improve
|
|
what you give them. Help stamp out software-hoarding!
|
|
-------------------------------------------------------------------------*/
|
|
#ifndef SDCCVAL_H
|
|
#define SDCCVAL_H
|
|
|
|
#include "SDCCsymt.h"
|
|
|
|
|
|
/* value wrapper */
|
|
typedef struct value
|
|
{
|
|
char name[SDCC_NAME_MAX + 1]; /* operand accessing this value */
|
|
sym_link *type; /* start of type chain */
|
|
sym_link *etype; /* end of type chain */
|
|
symbol *sym; /* Original Symbol */
|
|
struct value *next; /* used in initializer list */
|
|
unsigned vArgs:1; /* arg list ended with variable arg */
|
|
}
|
|
value;
|
|
|
|
typedef struct literalList
|
|
{
|
|
double literalValue;
|
|
unsigned count;
|
|
struct literalList *next;
|
|
} literalList;
|
|
|
|
enum
|
|
{
|
|
INIT_NODE,
|
|
INIT_DEEP,
|
|
INIT_HOLE
|
|
};
|
|
|
|
/* initializer lists use this structure */
|
|
typedef struct initList
|
|
{
|
|
int type;
|
|
int lineno;
|
|
char *filename;
|
|
struct designation *designation;
|
|
union
|
|
{
|
|
struct ast *node;
|
|
struct initList *deep;
|
|
}
|
|
init;
|
|
|
|
struct initList *next;
|
|
}
|
|
initList;
|
|
|
|
enum
|
|
{
|
|
DESIGNATOR_STRUCT,
|
|
DESIGNATOR_ARRAY
|
|
};
|
|
|
|
/* designated initializers */
|
|
typedef struct designation
|
|
{
|
|
int type;
|
|
int lineno;
|
|
char *filename;
|
|
union
|
|
{
|
|
struct symbol *tag; /* tag part of structure */
|
|
int elemno; /* array element (constant expr) */
|
|
}
|
|
designator;
|
|
|
|
struct designation *next; /* next part of nested designator */
|
|
}
|
|
designation;
|
|
|
|
/* return values from checkConstantRange */
|
|
typedef enum
|
|
{
|
|
CCR_OK, /* evaluate at runtime */
|
|
CCR_OVL,
|
|
CCR_ALWAYS_FALSE,
|
|
CCR_ALWAYS_TRUE
|
|
}
|
|
CCR_RESULT;
|
|
|
|
#define IS_VARG(x) (x->vArgs)
|
|
|
|
/* forward definitions for the symbol table related functions */
|
|
value *newValue (void);
|
|
value *constVal (const char *);
|
|
value *constIntVal (const char *);
|
|
value *constCharacterVal (unsigned long v, char type);
|
|
value *constCharVal (unsigned char v);
|
|
value *constBoolVal (bool v);
|
|
value *reverseVal (value *);
|
|
value *reverseValWithType (value *);
|
|
value *copyValue (value *);
|
|
value *copyValueChain (value *);
|
|
value *strVal (const char *);
|
|
value *rawStrVal (const char *, size_t size);
|
|
value *charVal (const char *);
|
|
value *symbolVal (symbol *);
|
|
void printVal (value *);
|
|
double floatFromVal (value *);
|
|
unsigned long ulFromVal (value *);
|
|
unsigned long long ullFromVal (value *);
|
|
|
|
/* convert a fixed16x16 type to double */
|
|
double doubleFromFixed16x16 (TYPE_TARGET_ULONG value);
|
|
|
|
/* convert a double type to fixed16x16 */
|
|
TYPE_TARGET_ULONG fixed16x16FromDouble (double value);
|
|
|
|
CCR_RESULT checkConstantRange (sym_link * var, sym_link * lit, int op, bool exchangeOps);
|
|
value *array2Ptr (value *);
|
|
value *valUnaryPM (value *);
|
|
value *valComplement (value *);
|
|
value *valNot (value *);
|
|
value *valMult (value *, value *);
|
|
value *valDiv (value *, value *);
|
|
value *valMod (value *, value *);
|
|
value *valPlus (value *, value *);
|
|
value *valMinus (value *, value *);
|
|
value *valShift (value *, value *, int);
|
|
value *valCompare (value *, value *, int);
|
|
value *valBitwise (value *, value *, int);
|
|
value *valLogicAndOr (value *, value *, int);
|
|
value *valCastLiteral (sym_link *, double, TYPE_TARGET_ULONGLONG);
|
|
value *valueFromLit (double);
|
|
initList *newiList (int, void *);
|
|
initList *revinit (initList *);
|
|
initList *copyIlist (initList *);
|
|
double list2int (initList *);
|
|
value *list2val (initList *, int);
|
|
struct ast *list2expr (initList *);
|
|
void resolveIvalSym (initList *, sym_link *);
|
|
designation *newDesignation(int, void *);
|
|
designation *revDesignation (designation *);
|
|
designation *copyDesignation (designation *);
|
|
initList *reorderIlist (sym_link *, initList *);
|
|
value *valFromType (sym_link *);
|
|
value *constFloatVal (const char *);
|
|
value *constFixed16x16Val (const char *);
|
|
int getNelements (sym_link *, initList *);
|
|
value *valForArray (struct ast *);
|
|
value *valForStructElem (struct ast *, struct ast *);
|
|
value *valForCastAggr (struct ast *, sym_link *, struct ast *, int);
|
|
value *valForCastArr (struct ast *, sym_link *);
|
|
bool convertIListToConstList (initList * src, literalList ** lList, int size);
|
|
literalList *copyLiteralList (literalList * src);
|
|
unsigned long double2ul (double val);
|
|
unsigned char byteOfVal (value *, int);
|
|
int csdOfVal (int *topbit, int *nonzero, unsigned long long *csd_add, unsigned long long *csd_sub, value *val);
|
|
int isEqualVal (value *, int);
|
|
TYPE_TARGET_ULONGLONG ullFromLit (sym_link * lit);
|
|
value * valRecastLitVal (sym_link * dtype, value * val);
|
|
|
|
#endif
|