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SAPFOR/dvm/fdvm/trunk/Sage/lib/oldsrc/make_nodes.c
ALEXks 59c56cc5c2 added project
2023-09-14 19:43:13 +03:00

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/*********************************************************************/
/* pC++/Sage++ Copyright (C) 1993 */
/* Indiana University University of Oregon University of Rennes */
/*********************************************************************/
#include <stdlib.h>
#include "db.h"
#include "compatible.h"
#ifdef SYS5
#include <string.h>
#else
#include <strings.h>
#endif
#ifdef __SPF
extern void addToCollection(const int line, const char *file, void *pointer, int type);
#endif
#define ALLOC(x) (struct x *) chkalloc(sizeof(struct x))
#define LABUNKNOWN 0
/*
* External references
*/
extern PTR_FILE cur_file;
/*
* copyn -- makes a copy of a string with known length
*
* input:
* n - length of the string "s"
* s - the string to be copied
*
* output:
* pointer to the new string
*/
char *
copyn(int n, char *s)
/* int n; */
/* char *s; */
{
char *p, *q;
p = q = (char *) calloc(1, (unsigned) n);
#ifdef __SPF
addToCollection(__LINE__, __FILE__,p, 0);
#endif
while (--n >= 0)
*q++ = *s++;
return (p);
}
/*
* copys -- makes a copy of a string
*
* input:
* s - string to be copied
*
* output:
* pointer to the new string
*/
char *
copys(s)
char *s;
{
return (copyn(strlen(s) + 1, s));
}
char *
chkalloc(int n)
/* int n; */
{
char *p;
if ((p = (char *)calloc(1, (unsigned)n)) != 0)
{
#ifdef __SPF
addToCollection(__LINE__, __FILE__,p, 0);
#endif
return (p);
}
return NULL;
}
PTR_BFND
alloc_bfndnt (fi)
PTR_FILE fi;
{
register PTR_BFND new;
new = ALLOC (bfnd);
new->id = ++(fi->num_bfnds);
new->thread = BFNULL;
return (new);
}
PTR_BFND
alloc_bfnd (fi)
PTR_FILE fi;
{
register PTR_BFND new;
new = ALLOC (bfnd);
new->id = ++(fi->num_bfnds);
new->thread = BFNULL;
if (fi->num_bfnds == 1)
fi->head_bfnd = new;
else
fi->cur_bfnd->thread = new;
fi->cur_bfnd = new;
return (new);
}
PTR_LLND
alloc_llnd (fi)
PTR_FILE fi;
{
register PTR_LLND new;
new = ALLOC (llnd);
new->id = ++(fi->num_llnds);
new->thread = LLNULL;
if (fi->num_llnds == 1)
fi->head_llnd = new;
else
fi->cur_llnd->thread = new;
fi->cur_llnd = new;
return (new);
}
PTR_TYPE
alloc_type (fi)
PTR_FILE fi;
{
PTR_TYPE new;
new = (PTR_TYPE) calloc (1, sizeof (struct data_type));
#ifdef __SPF
addToCollection(__LINE__, __FILE__,new, 0);
#endif
new->id = ++(fi->num_types);
new->thread = TYNULL;
if (fi->num_types == 1)
fi->head_type = new;
else
fi->cur_type->thread = new;
fi->cur_type = new;
return (new);
}
PTR_SYMB
alloc_symb (fi)
PTR_FILE fi;
{
PTR_SYMB new;
if (fi->cur_symb && (fi->cur_symb->variant == 0))
return (fi->cur_symb);
new = ALLOC (symb);
new->id = ++(fi->num_symbs);
new->thread = SMNULL;
if (fi->num_symbs == 1)
fi->head_symb = new;
else
fi->cur_symb->thread = new;
fi->cur_symb = new;
return (new);
}
PTR_LABEL
alloc_lab (fi)
PTR_FILE fi;
{
PTR_LABEL new;
new = ALLOC (Label);
new->id = ++(fi->num_label);
new->next = LBNULL;
if (fi->num_label == 1)
fi->head_lab = new;
else
fi->cur_lab->next = new;
fi->cur_lab = new;
return (new);
}
PTR_DEP
alloc_dep (fi)
PTR_FILE fi;
{
PTR_DEP new;
new = ALLOC (dep);
new->id = ++(fi->num_dep);
new->thread = NULL;
if (fi->num_dep == 1)
fi->head_dep = new;
else
fi->cur_dep->thread = new;
fi->cur_dep = new;
return (new);
}
/*
* Make a BIF node
*/
PTR_BFND
make_bfnd (PTR_FILE fi, int node_type, PTR_SYMB symb_ptr, PTR_LLND ll1, PTR_LLND ll2, PTR_LLND ll3)
/* PTR_FILE fi; */
/* int node_type; */
/* PTR_SYMB symb_ptr; */
/* PTR_LLND ll1, ll2, ll3; */
{
register PTR_BFND new_bfnd;
new_bfnd = alloc_bfnd (fi); /* should set up id field */
new_bfnd->variant = node_type;
new_bfnd->filename = NULL;
new_bfnd->entry.Template.symbol = symb_ptr;
new_bfnd->entry.Template.ll_ptr1 = ll1;
new_bfnd->entry.Template.ll_ptr2 = ll2;
new_bfnd->entry.Template.ll_ptr3 = ll3;
new_bfnd->entry.Template.cmnt_ptr = NULL;
fi->cur_bfnd = new_bfnd;
return (new_bfnd);
}
PTR_BFND
make_bfndnt (fi, node_type, symb_ptr, ll1, ll2, ll3)
PTR_FILE fi;
int node_type;
PTR_SYMB symb_ptr;
PTR_LLND ll1, ll2, ll3;
{
register PTR_BFND new_bfnd;
new_bfnd = alloc_bfndnt (fi); /* should set up id field */
new_bfnd->variant = node_type;
new_bfnd->filename = NULL;
new_bfnd->entry.Template.symbol = symb_ptr;
new_bfnd->entry.Template.ll_ptr1 = ll1;
new_bfnd->entry.Template.ll_ptr2 = ll2;
new_bfnd->entry.Template.ll_ptr3 = ll3;
new_bfnd->entry.Template.cmnt_ptr = NULL;
fi->cur_bfnd = new_bfnd;
return (new_bfnd);
}
/*
* Make a new low level node
*/
PTR_LLND
make_llnd (PTR_FILE fi, int node_type, PTR_LLND ll1, PTR_LLND ll2, PTR_SYMB symb_ptr)
/* PTR_FILE fi; */
/* int node_type; */
/* PTR_LLND ll1, ll2; */
/* PTR_SYMB symb_ptr; */
{
PTR_LLND new_llnd;
new_llnd = alloc_llnd (fi); /* should set up id field */
new_llnd->variant = node_type;
new_llnd->type = TYNULL;
new_llnd->entry.Template.ll_ptr1 = ll1;
new_llnd->entry.Template.ll_ptr2 = ll2;
switch (node_type) {
case INT_VAL:
/* new_llnd->entry.ival = (int) symb_ptr; */
break;
case BOOL_VAL:
/* new_llnd->entry.bval = (int) symb_ptr; */
break;
default:
new_llnd->entry.Template.symbol = symb_ptr;
break;
}
return (new_llnd);
}
/*
* Make a new low level node for label
*/
PTR_LLND
make_llnd_label (fi, node_type, lab)
PTR_FILE fi;
int node_type;
PTR_LABEL lab;
{
PTR_LLND new_llnd;
new_llnd = alloc_llnd (fi); /* should set up id field */
new_llnd->variant = node_type;
new_llnd->type = TYNULL;
new_llnd->entry.label_list.lab_ptr = lab;
new_llnd->entry.label_list.null_1 = LLNULL;
new_llnd->entry.label_list.next = LLNULL;
return (new_llnd);
}
/*
* Make a new symb node
*/
PTR_SYMB
make_symb (fi, node_type, string)
PTR_FILE fi;
int node_type;
char *string;
{
PTR_SYMB new_symb;
new_symb = alloc_symb (fi);
new_symb->variant = node_type;
new_symb->ident = copys (string);
return (new_symb);
}
/*
* Make a new type node
*/
PTR_TYPE
make_type (fi, node_type)
PTR_FILE fi;
int node_type;
{
PTR_TYPE new_type;
new_type = alloc_type (fi);
new_type->entry.Template.ranges = NULL;
new_type->variant = node_type;
return (new_type);
}
/*
* Make a new label node for Fortran. VPC has its own get_labe
*/
PTR_LABEL
make_label (fi, l)
PTR_FILE fi;
long l;
{
PTR_LABEL new_lab;
PTR_BFND this_scope;
int num;/*podd*/
num = fi->cur_bfnd ? fi->cur_bfnd->g_line : 0; /*podd*/
if (l <= 0 || l > 99999) {
/* fprintf (stderr, "Error 038 on line %d of %s: Label out of range\n", num, fi->filename); */
l = 0;
}
this_scope = NULL;
for (new_lab = fi->head_lab; new_lab; new_lab = new_lab->next)
if (new_lab->stateno == l && new_lab->scope == this_scope)
return (new_lab);
new_lab = alloc_lab (fi);
new_lab->stateno = l;
new_lab->scope = this_scope;
new_lab->labused = NO;
new_lab->labdefined = NO;
new_lab->labinacc = NO;
new_lab->labtype = LABUNKNOWN;
new_lab->statbody = BFNULL;
return (new_lab);
}
/*
* Make a DEP node
*/
PTR_DEP
make_dep(fi, sym,t,lls,lld,bns,bnd,dv)
PTR_FILE fi;
PTR_SYMB sym; /* symbol for variable name */
char t; /* type: 0=flow 1=anti 2 = output */
PTR_LLND lls, lld; /* term source and destination */
PTR_BFND bns, bnd; /* biff nd source and destination */
char *dv; /* dep. vector: 1="=" 2="<" 4=">" ? */
{
int i;
PTR_DEP d;
if ((d = alloc_dep(fi)) == NULL)
return NULL;
d->type = t;
d->symbol = sym;
d->from.stmt = bns; d->from.refer = lls;
d->to.stmt = bnd; d->to.refer = lld;
for(i=0; i < MAX_DEP; i++) d->direct[i] = 0;
for(i=0; i < MAX_NEST_DEPTH; i++) d->direct[i] = dv[i];
return(d);
}
/*------------------------------------------------------*
* alloc_blob *
*------------------------------------------------------*/
PTR_BLOB
alloc_blob1(fi)
PTR_FILE fi;
{
PTR_BLOB new;
new = ALLOC(blob);
++(fi->num_blobs);
return (new);
}
PTR_CMNT
alloc_cmnt (fi)
PTR_FILE fi;
{
PTR_CMNT new;
new = ALLOC (cmnt);
new->id = ++(fi->num_cmnt);
new->thread = CMNULL;
if (fi->num_cmnt == 1)
fi->head_cmnt = new;
else
fi->cur_cmnt->thread = new;
fi->cur_cmnt = new;
return (new);
}
/*------------------------------------------------------*
* make_blob *
*------------------------------------------------------*/
PTR_BLOB
make_blob (fi, ref, next)
PTR_FILE fi;
PTR_BFND ref;
PTR_BLOB next;
{
PTR_BLOB new;
new = alloc_blob1(fi);
new->ref = ref;
new->next = next;
return (new);
}
PTR_CMNT
make_comment (fi, s, t)
PTR_FILE fi;
char *s;
int t;
{
PTR_CMNT new;
new = alloc_cmnt(fi);
new->string = copys (s);
new->type = t;
return (new);
}
void
MakeBfnd (node_type, symb_ptr, ll1, ll2, ll3)
int node_type;
PTR_SYMB symb_ptr;
PTR_LLND ll1, ll2, ll3;
{
PTR_BFND b;
b = make_bfnd (cur_file, node_type, symb_ptr, ll1, ll2, ll3);
fprintf(stderr, "%d\n", b->id);
}
void
MakeLlnd (node_type, ll1, ll2, symb_ptr)
int node_type;
PTR_LLND ll1, ll2;
PTR_SYMB symb_ptr;
{
PTR_LLND l;
l = make_llnd (cur_file, node_type, ll1, ll2, symb_ptr);
fprintf(stderr, "%d\n", l->id);
}
void
Makellnd_label (node_type, lab)
int node_type;
PTR_LABEL lab;
{
make_llnd_label (cur_file, node_type, lab);
}
void
MakeSymb (node_type, string)
int node_type;
char *string;
{
PTR_SYMB s;
s = make_symb (cur_file, node_type, string);
fprintf(stderr, "%d\n", s->id);
}
void
Maketype (node_type)
int node_type;
{
PTR_TYPE t;
t = make_type (cur_file, node_type);
fprintf(stderr, "%d\n", t->id);
}
void
MakeLabel (l)
long l;
{
PTR_LABEL l1;
l1 = make_label (cur_file, l);
fprintf(stderr, "%d\n",l1->id);
}
void
MakeBlob (ref, next)
PTR_BFND ref;
PTR_BLOB next;
{
make_blob (cur_file, ref, next);
}
void
MakeComment (s, t)
char *s;
int t;
{
PTR_CMNT c;
c = make_comment (cur_file, s, t);
fprintf(stderr, "%d\n",c->id);
}
/*
* declare variable can be used to create a new variable in the
* symbol table that is "like" another variable. For example
* if x is in a statement b and you wish to make a new variable
* with id x_new that is an array of the same type as x (which
* is a scalar), this function creates the new varaible and
* creates a declartion for it at the appropriate scope level
*/
PTR_SYMB
declare_variable (id, like, dimension, scope)
char *id; /* identifier for new variable */
PTR_SYMB like; /* the Template variable */
int dimension; /* if > 1 then this is an array */
/* version of Template variable */
PTR_BFND scope; /* pointer to a statment that is */
/* in the block where this is to */
/* be declared */
{
PTR_LLND expr_list, reference;
PTR_BFND decl_stmt;
PTR_LLND dimen_expr;
PTR_SYMB new_var;
if (like == NULL) {
fprintf (stderr, "no Template in declare_varaible\n");
return (NULL);
}
if (id == NULL) {
fprintf (stderr, "no id in declare_variable\n");
return (NULL);
}
if (scope == NULL) {
fprintf (stderr, "no scope in declare_varaible\n");
return (NULL);
}
new_var = make_symb (cur_file, VARIABLE_NAME, id);
if (dimension <= 1) {
if (like->type == NULL) {
fprintf (stderr, "problems with type of like in declare_variable\n");
return (NULL);
}
new_var->type = like->type;
if (like->type->variant == T_ARRAY) {
dimen_expr = make_llnd (cur_file, INT_VAL, NULL, NULL, NULL);
dimen_expr = like->type->entry.ar_decl.ranges ->
entry.Template.ll_ptr1;
reference = make_llnd (cur_file, ARRAY_REF, dimen_expr,
NULL, new_var);
} else
reference = make_llnd (cur_file, VAR_REF, NULL, NULL, new_var);
} else {
dimen_expr = make_llnd (cur_file, INT_VAL, NULL, NULL, NULL);
dimen_expr->entry.ival = dimension;
reference = make_llnd (cur_file, ARRAY_REF, dimen_expr, NULL, new_var);
new_var->type = make_type (cur_file, T_ARRAY);
new_var->type->entry.ar_decl.base_type = like->type;
new_var->type->entry.ar_decl.num_dimensions = 1;
new_var->type->entry.ar_decl.ranges = dimen_expr;
}
expr_list = make_llnd (cur_file, EXPR_LIST, reference, NULL, NULL);
decl_stmt = make_bfnd (cur_file, VAR_DECL, NULL, expr_list, NULL, NULL);
scope = scope->control_parent;
while (scope != NULL &&
scope->variant != GLOBAL && scope->variant != PROC_HEDR &&
scope->variant != PROG_HEDR && scope->variant != FUNC_HEDR &&
scope->variant != FOR_NODE && scope->variant != CDOALL_NODE &&
scope->variant != PARFOR_NODE && scope->variant != PAR_NODE)
scope = scope->control_parent;
if (scope == NULL || scope->variant == GLOBAL) {
fprintf(stderr, "bad scope in declare_variable \n");
return (NULL);
}
scope->entry.Template.bl_ptr1 = make_blob (cur_file, decl_stmt,
scope->entry.Template.bl_ptr1);
return (new_var);
}
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