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prnttree.c
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#include <string.h>
#include <malloc.h>
#include "prnttree.h"
#include "CodeGenerator.h"
#include "token.h"
#include "gram_parser.cpp.h"
#include "symtab.h"
#include "dsm_extension.h"
#include "globals.h"
int ptline, ptpos;
#ifdef DEBUG
#define FPUTS(X,Y) do { if (debug_print_on) fputs((X),(Y)); } while(0)
#else
#define FPUTS(X,Y) /* Nop */
#endif
int fopt_mode=0;
int fdepth = 0;
int fcount = 0;
int thisstate =0;
typedef struct state_stack {
int state;
struct state_stack *next;
} state_stack;
state_stack *ststack= (state_stack *)NULL;
int debug_print_on;
/* ############################################################### */
static int decl_cnt = 0;
static int just_left_blk = 0;
static int enum_list_cnt = 0;
static void show_if(if_node *ifn, int tabs, FILE *fp);
static void show_for(for_node *forn, int tabs, FILE *fp);
static void show_any(treenode *child, int tabs, FILE *fp);
static void show_node(treenode *node, int tabs, FILE *fp);
/* ############################################################### */
int is_function(treenode *node)
{
if (node->hdr.which == LEAF_T)
{
leafnode *leaf = (leafnode*) node;
if ((leaf->hdr.type == TN_IDENT) && leaf->syment)
{
/* Need to check symbol table for the entry. */
treenode *def = leaf->syment->node;
if (def)
{
return (def->hdr.type == TN_FUNC_DEF);
}
}
}
return 0;
}
/* ############################################################### */
/* indent - 2 spaces per level */
void indent(int levels, FILE *fp)
{
int j;
#ifdef DEBUG
if (debug_print_on && (levels != 0))
fprintf(fp,"\n<indent %d>",levels);
else
#endif
for (j=levels; j > 0; j--)
fputs(" ",fp);
}
/* ############################################################### */
/* Print a char, converting chars to escape sequences. */
void fputs_metachr(char c, int in_str, FILE *fp)
{
switch (c) {
case '\'':
if (in_str)
fputs("'",fp);
else
fputs("\\'",fp);
break;
case '"':
if (in_str)
fputs("\\\"",fp);
else
fputs("\"",fp);
break;
case '\0':
fputs("\\0",fp);
break;
case '\\':
fputs("\\\\",fp);
break;
case '\n':
fputs("\\n",fp);
break;
case '\t':
fputs("\\t",fp);
break;
case '\r':
fputs("\\r",fp);
break;
case '\f':
fputs("\\f",fp);
break;
case '\b':
fputs("\\b",fp);
break;
case '\v':
fputs("\\v",fp);
break;
case '\a':
fputs("\\a",fp);
break;
default:
fputc(c,fp);
}
}
/* ############################################################### */
/* Print a string, converting chars to escape sequences. */
void fputs_metastr(char *str, FILE *fp)
{
while (*str) {
fputs_metachr(*str,1,fp);
str++;
}
}
/* ############################################################### */
char* print_ptr(void *ptr)
{
static char buf[32];
#if defined(__STDC__) || defined(__cplusplus)
sprintf( buf, "%p", ptr );
#else
sprintf( buf, "0x%0x", (unsigned int) ptr );
#endif
return buf;
}
treenode *lastfor=NULL,*currfor=NULL;
int forflag=0;
/* ############################################################### */
treenode *new_make_node(tn_t type, context_t *contxt)
{
treenode *tmp_node;
tmp_node = (treenode *) malloc(sizeof(treenode));
if (tmp_node == NULL)
{
fputs("Error: Out of memory in new_make_node.\n",stderr);
exit(1);
}
tmp_node->hdr.which = NODE_T;
tmp_node->hdr.type = type;
tmp_node->lnode = (treenode *) NULL;
tmp_node->rnode = (treenode *) NULL;
tmp_node->hdr.c_contxt = malloc(sizeof(context_t));
tmp_node->hdr.c_contxt->labels = malloc(sizeof(symtab_t));
*(tmp_node->hdr.c_contxt->labels) = *(contxt->labels);
tmp_node->hdr.c_contxt->syms = malloc(sizeof(symtab_t));
*(tmp_node->hdr.c_contxt->syms) = *(contxt->syms);
tmp_node->hdr.c_contxt->tags = malloc(sizeof(symtab_t));
*(tmp_node->hdr.c_contxt->tags) = *(contxt->tags);
return tmp_node;
}
void opt_try_tree(treenode *root)
{
for_node *tfr;
if_node *ifn;
for_node *forn;
treenode *t;
//switch (root->hdr.which){
//case LEAF_T: printf(" LEAF_T %d\n",root->hdr.which); break;
//case NODE_T: printf(" NODE_T %d\n",root->hdr.which); break;
//case IF_T: printf(" IF_T %d\n",root->hdr.which); break;
//case FOR_T: printf(" FOR_T %d\n",root->hdr.which); break;
//case NONE_T: printf(" NONE_T %d\n",root->hdr.which); break;
//default:
//printf(" UNKNOWN_T %d\n",root->hdr.which); break;
//}
if (!root)
return;
switch (root->hdr.which){
case LEAF_T:
break;
case NODE_T:
if(root->lnode != NULL) opt_try_tree(root->lnode);
if(root->rnode != NULL) opt_try_tree(root->rnode);
break;
case IF_T:
ifn = (if_node *) root;
if(ifn->cond != NULL) opt_try_tree(ifn->cond);
if(ifn->then_n != NULL) opt_try_tree(ifn->then_n);
if(ifn->else_n != NULL) opt_try_tree(ifn->else_n);
break;
case FOR_T:
forn = (for_node *) root;
lastfor = currfor;
currfor = root;
if(forn->init != NULL) opt_try_tree(forn->init);
if(forn->test != NULL) opt_try_tree(forn->test);
if(forn->incr != NULL) opt_try_tree(forn->incr);
forflag = 0;
if(forn->stemnt != NULL) opt_try_tree(forn->stemnt);
if(forflag == 0 && lastfor != NULL){
tfr = (for_node *) lastfor;
if(tfr->test != NULL){
//printf("inside forflag then %d %d %d\n",tfr->test,tfr->test->hdr.type,tfr->test->hdr.c_contxt);
t = new_make_node(tfr->test->hdr.type, root->hdr.c_contxt);
} else {
t = new_make_node(root->hdr.type, root->hdr.c_contxt);
}
t->hdr.type = TN_EXPR;
t->hdr.tok = OR;
t->lnode = tfr->test;
t->rnode = forn->test;
tfr->test = t;
}
forflag = 1;
break;
case NONE_T:
break ;
default:
printf(" UNKNOWN_T %d\n",root->hdr.which);
break ;
}
return;
}
/* ############################################################### */
treenode *add_initstate(context_t *contxt)
{
treenode *tass;
leafnode *ln, *rn;
// the assignment state = newstate;
tass = new_make_node(TN_ASSIGN, contxt);
tass->hdr.which = NODE_T;
tass->hdr.tok = EQ;
tass->hdr.type = TN_ASSIGN;
ln = (leafnode *) new_make_node(TN_IDENT,contxt);
ln->data.sval = (str_t *)malloc(sizeof(str_t));
ln->data.sval->str = (char *)malloc(40);
strcpy(ln->data.sval->str,"int s_tate");
ln->hdr.which = LEAF_T;
ln->hdr.type = TN_IDENT;
ln->hdr.tok = IDENT;
tass->lnode = (treenode *) ln;
rn = (leafnode *) new_make_node(TN_INT,contxt);
rn->data.ival = 0;
rn->hdr.which = LEAF_T;
rn->hdr.type = TN_INT;
rn->hdr.tok = INUM;
tass->rnode = (treenode *) rn;
return(tass);
}
treenode *add_state_is(context_t *contxt, int newstate)
{
treenode *tass;
leafnode *ln, *rn;
// the assignment state = newstate;
tass = new_make_node(TN_ASSIGN, contxt);
tass->hdr.which = NODE_T;
tass->hdr.tok = EQ;
tass->hdr.type = TN_ASSIGN;
ln = (leafnode *) new_make_node(TN_IDENT,contxt);
ln->data.sval = (str_t *)malloc(sizeof(str_t));
ln->data.sval->str = (char *)malloc(40);
strcpy(ln->data.sval->str,"s_tate");
ln->hdr.which = LEAF_T;
ln->hdr.type = TN_IDENT;
ln->hdr.tok = IDENT;
tass->lnode = (treenode *) ln;
rn = (leafnode *) new_make_node(TN_INT,contxt);
rn->data.ival = newstate;
rn->hdr.which = LEAF_T;
rn->hdr.type = TN_INT;
rn->hdr.tok = INUM;
tass->rnode = (treenode *) rn;
return(tass);
}
treenode *cond_state(context_t *contxt, int st)
{
treenode *cstate;
leafnode *ln,*rn;
cstate = new_make_node(TN_EXPR, contxt);
cstate->hdr.which = NODE_T;
cstate->hdr.tok = EQUAL;
ln = (leafnode *) new_make_node(TN_IDENT,contxt);
ln->data.sval = (str_t *)malloc(sizeof(str_t));
ln->data.sval->str = (char *)malloc(40);
strcpy(ln->data.sval->str,"s_tate");
ln->hdr.which = LEAF_T;
ln->hdr.type = TN_IDENT;
ln->hdr.tok = IDENT;
cstate->lnode = (treenode *) ln;
rn = (leafnode *) new_make_node(TN_INT,contxt);
rn->data.ival = st;
rn->hdr.which = LEAF_T;
rn->hdr.type = TN_INT;
rn->hdr.tok = INUM;
cstate->rnode = (treenode *) rn;
return(cstate);
}
if_node *add_if(context_t *contxt, treenode *root, int st)
{
if_node *ifn;
leafnode *ln,*rn,*llp;
// if(state == fcount) root
ifn = (if_node *) new_make_node(IF_T, contxt);
ifn->hdr.which = IF_T;
ifn->hdr.type = TN_IF;
ifn->then_n = root;
ifn->else_n = (treenode *) NULL;
ifn->cond = cond_state(contxt,st);
return ifn;
}
treenode *add_block(context_t *contxt, treenode *st1, treenode *st2, treenode *st3)
// the block { st1; st2; st3; }
{
treenode *sblock,*slist,*klist;
if(st3 == NULL)
{
slist = new_make_node(TN_STEMNT_LIST, contxt);
slist->hdr.which = NODE_T;
slist->hdr.tok = SEMICOLON;
slist->hdr.type = TN_STEMNT_LIST;
slist->lnode = (treenode *) st1;
slist->rnode = (treenode *) st2;
} else {
klist = new_make_node(TN_STEMNT_LIST, contxt);
klist->hdr.which = NODE_T;
klist->hdr.tok = SEMICOLON;
klist->hdr.type = TN_STEMNT_LIST;
klist->lnode = (treenode *) st2;
klist->rnode = (treenode *) st3;
slist = new_make_node(TN_STEMNT_LIST, contxt);
slist->hdr.which = NODE_T;
slist->hdr.tok = SEMICOLON;
slist->hdr.type = TN_STEMNT_LIST;
slist->lnode = (treenode *) st1;
slist->rnode = (treenode *) klist;
}
sblock = new_make_node(TN_BLOCK, contxt);
sblock->hdr.which = NODE_T;
sblock->hdr.tok = SEMICOLON;
sblock->hdr.type = TN_BLOCK;
sblock->lnode = (treenode *) NULL;
sblock->rnode = (treenode *) slist;
return(sblock);
}
treenode *add_while(context_t *contxt, treenode *test, treenode *stemnt,
int thisst, int nextst, int prevst)
// building:
//{ if(state == N1) { state = N2; j=0; }
// if(state == N2) y=y*A[j];
// if(state == N2) if( j < A[i]) {state = N2; j++; } else state = N1; }
{
if_node *ifn,*ifa,*ifb;
leafnode *ln,*rn,*llp;
treenode *tass,*slist,*s1,*s2;
treenode *flatf,*fexit;
// the assignment state = N2
tass = add_state_is(contxt, thisst);
//if(state == N1) { state = N2; j=0; }
ifb = (if_node *) new_make_node(IF_T, contxt);
ifb->hdr.which = IF_T;
ifb->hdr.type = TN_IF;
ifb->cond = cond_state(contxt, prevst);
//the list { state = N2;}
ifb->then_n = tass;
ifb->else_n = (treenode *) NULL;
// if( j < A[i]) {state = N2; j++; } else state = N1;
ifa = (if_node *) new_make_node(IF_T, contxt);
ifa->hdr.which = IF_T;
ifa->hdr.type = TN_IF;
ifa->cond = test;
s1 = add_state_is(contxt, thisst);
//the block { state = N2; j++; }
//ifa->then_n = add_block(contxt,s1,incr,NULL);
ifa->then_n = NULL;
ifa->else_n = (treenode *) add_state_is(contxt, nextst);
// { if(state == N2) if( j < A[i]) {state = N2; j++; } else state = N1; }
ifn = (if_node *) new_make_node(IF_T, contxt);
ifn->hdr.which = IF_T;
ifn->hdr.type = TN_IF;
ifn->cond = cond_state(contxt, thisst);
ifn->then_n = (treenode *) ifa;
ifn->else_n = (treenode *) NULL;
flatf = add_block(contxt, (treenode*)ifb, (treenode*)stemnt, (treenode*)ifn);
return flatf;
}
treenode *add_for(context_t *contxt, treenode *init, treenode *test, treenode *incr,treenode *stemnt,
int thisst, int nextst, int prevst)
// building:
//{ if(state == N1) { state = N2; j=0; }
// if(state == N2) y=y*A[j];
// if(state == N2) if( j < A[i]) {state = N2; j++; } else state = N1; }
{
if_node *ifn,*ifa,*ifb;
leafnode *ln,*rn,*llp;
treenode *tass,*slist,*s1,*s2;
treenode *flatf,*fexit;
// the assignment state = N2
tass = add_state_is(contxt, thisst);
//if(state == N1) { state = N2; j=0; }
ifb = (if_node *) new_make_node(IF_T, contxt);
ifb->hdr.which = IF_T;
ifb->hdr.type = TN_IF;
ifb->cond = cond_state(contxt, prevst);
//the list { state = N2; j=0; }
ifb->then_n = add_block(contxt,tass,init,NULL);
ifb->else_n = (treenode *) NULL;
// if( j < A[i]) {state = N2; j++; } else state = N1;
ifa = (if_node *) new_make_node(IF_T, contxt);
ifa->hdr.which = IF_T;
ifa->hdr.type = TN_IF;
ifa->cond = test;
s1 = add_state_is(contxt, thisst);
//the block { state = N2; j++; }
//ifa->then_n = add_block(contxt,s1,incr,NULL);
ifa->then_n = incr;
ifa->else_n = (treenode *) add_state_is(contxt, nextst);
// { if(state == N2) if( j < A[i]) {state = N2; j++; } else state = N1; }
ifn = (if_node *) new_make_node(IF_T, contxt);
ifn->hdr.which = IF_T;
ifn->hdr.type = TN_IF;
ifn->cond = cond_state(contxt, thisst);
ifn->then_n = (treenode *) ifa;
ifn->else_n = (treenode *) NULL;
flatf = add_block(contxt, (treenode*)ifb, (treenode*)stemnt, (treenode*)ifn);
return flatf;
}
treenode *add_firstfor(context_t *contxt, treenode *init, treenode *test, treenode *incr,treenode *stemnt,
int thisst, int nextst, int prevst)
{
treenode *tass,*slist,*flatf;
if_node *ifb;
// the assignment state = N2
//tass = add_state_is(contxt, prevst);
//the list { state = N2; j=0; }
//slist = add_block(contxt,tass,incr,NULL);
//if(state == N2) { state = N1; i++; }
ifb = (if_node *) new_make_node(IF_T, contxt);
ifb->hdr.which = IF_T;
ifb->hdr.type = TN_IF;
ifb->cond = cond_state(contxt, thisst);
ifb->then_n = incr;
ifb->else_n = (treenode *) NULL;
//{ stemnt; if(state == N2) { state = N1; i++; } }
flatf = add_block(contxt, (treenode*)stemnt, (treenode*)ifb,NULL);
return(flatf);
}
treenode *add_thenelse(context_t *contxt,treenode *cond, treenode *then_n, treenode *else_n,
int thenst, int elsest, int prevst)
{
treenode *then_part,*else_part,*flatf;
if_node *ifa,*ifb,*ifc;
ifc = (if_node *) new_make_node(IF_T, contxt);
ifc->hdr.which = IF_T;
ifc->hdr.type = TN_IF;
ifc->cond = cond_state(contxt, (int)cond);
ifc->then_n = add_state_is(contxt, thenst);
if(elsest != -1){ ifc->else_n = add_state_is(contxt, elsest);} else ifc->else_n = NULL;
//if(state == thenst) { then_n; state = prevst }
ifa = (if_node *) new_make_node(IF_T, contxt);
ifa->hdr.which = IF_T;
ifa->hdr.type = TN_IF;
ifa->cond = cond_state(contxt, thenst);
ifa->then_n = add_state_is(contxt, prevst);
ifa->else_n = (treenode *) NULL;
then_part = add_block(contxt, (treenode*)then_n, (treenode*)ifa,NULL);
if(elsest != -1) {
//if(state == thenst) { then_n; state = prevst }
ifb = (if_node *) new_make_node(IF_T, contxt);
ifb->hdr.which = IF_T;
ifb->hdr.type = TN_IF;
ifb->cond = cond_state(contxt, elsest);
ifb->then_n = add_state_is(contxt, prevst);
ifb->else_n = (treenode *) NULL;
else_part = add_block(contxt, (treenode*)else_n, (treenode*)ifb,NULL);
flatf = add_block(contxt, (treenode*)ifc, (treenode*)then_part, (treenode*)else_part);
} else flatf = add_block(contxt, (treenode*)ifc, (treenode*)then_part,NULL);
return(flatf);
}
int flat_recur(treenode *root,treenode **parrent)
{
if_node *ifn;
for_node *forn;
leafnode *leaf;
if (!root)
return(0);
just_left_blk = 0;
switch (root->hdr.which){
default:
case NONE_T:
return 0;
case LEAF_T:
leaf = (leafnode *) root;
switch (leaf->hdr.type) {
case TN_LABEL:
break;
case TN_IDENT:
break;
case TN_COMMENT:
break;
case TN_ELLIPSIS:
break;
case TN_STRING:
break;
case TN_TYPE:
break;
case TN_INT:
break;
case TN_REAL:
break;
default:
break;
}
break;
case IF_T:
ifn = (if_node *) root;
switch (ifn->hdr.type) {
case TN_IF:
if(fopt_mode == 1)
{ int then_state=-1, else_state=-1, thisst;
if(ifn->then_n != NULL && ifn->else_n != NULL)
{
//push then state
thisst = ststack-> state;
state_stack *stp;
stp = (state_stack *) malloc(sizeof(state_stack));
if(stp == NULL) printf("stp allocation error\n");
stp->state = fcount;
stp->next = ststack;
ststack = stp;
then_state = fcount;
fcount++;
stp = (state_stack *) malloc(sizeof(state_stack));
if(stp == NULL) printf("stp allocation error\n");
stp->state = fcount;
stp->next = ststack;
ststack = stp;
else_state = fcount;
fcount++;
fdepth++;
flat_recur(ifn->then_n,&(ifn->then_n));
flat_recur(ifn->else_n,&(ifn->else_n));
if(ststack->next == NULL) printf("WHATTT ststate->next == NULL\n");
*parrent = add_thenelse(ifn->hdr.c_contxt,ifn->cond, ifn->then_n, ifn->else_n, then_state, else_state, thisst);
fdepth--;
//pop the two states
if(ststack == NULL) printf("ERR STSTAE=NULL\n");
stp = ststack;
ststack= ststack->next;
free(stp);
if(ststack != NULL) thisstate = ststack->state; else { thisstate =0; fcount=0; }
if(ststack == NULL) printf("ERR STSTAE=NULL\n");
stp = ststack;
ststack= ststack->next;
free(stp);
if(ststack != NULL) thisstate = ststack->state; else { thisstate =0; fcount=0; }
}
else if(ifn->then_n != NULL && ifn->else_n == NULL)
{
//push then state
thisst = ststack-> state;
state_stack *stp;
stp = (state_stack *) malloc(sizeof(state_stack));
if(stp == NULL) printf("stp allocation error\n");
stp->state = fcount;
stp->next = ststack;
ststack = stp;
then_state = fcount;
fcount++;
flat_recur(ifn->then_n,&(ifn->then_n));
if(ststack->next == NULL) printf("WHATTT ststate->next == NULL\n");
*parrent = add_thenelse(root->hdr.c_contxt,ifn->cond, ifn->then_n, ifn->else_n, then_state, else_state, thisst);
fdepth--;
//pop the two states
if(ststack == NULL) printf("ERR STSTAE=NULL\n");
stp = ststack;
ststack= ststack->next;
free(stp);
if(ststack != NULL) thisstate = ststack->state; else { thisstate =0; fcount=0; }
}
} else {
flat_recur(ifn->cond,&(ifn->cond));
flat_recur(ifn->then_n,&(ifn->then_n));
flat_recur(ifn->else_n,&(ifn->else_n));
}
return(0);
case TN_COND_EXPR:
flat_recur(ifn->cond,&(ifn->cond));
flat_recur(ifn->then_n,&(ifn->then_n));
flat_recur(ifn->else_n,&(ifn->else_n));
break;
default:
break;
}
break;
case FOR_T:
forn = (for_node *) root;
switch (forn->hdr.type) {
case TN_FUNC_DEF:
flat_recur(forn->init,&(forn->init));
flat_recur(forn->test,&(forn->test));
if (forn->test->hdr.which == LEAF_T)
flat_recur(forn->incr,&(forn->incr));
flat_recur(forn->stemnt,&(forn->stemnt));
break;
case TN_FOR:
if(fopt_mode == 1)
{
//push new state
state_stack *stp;
stp = (state_stack *) malloc(sizeof(state_stack));
if(stp == NULL) printf("stp allocation error\n");
stp->state = fcount;
stp->next = ststack;
ststack = stp;
thisstate = fcount;
fcount++;
if(ststack->next != NULL){
fdepth++;
flat_recur(forn->stemnt,&(forn->stemnt));
if(ststack->next == NULL) printf("WHATTT ststate->next == NULL\n");
*parrent = add_for(root->hdr.c_contxt, forn->init, forn->test, forn->incr,forn->stemnt,
ststack->state,ststack->next->state,ststack->next->state);
fdepth--;
} else {
fdepth++;
flat_recur(forn->stemnt,&(forn->stemnt));
forn->stemnt = add_firstfor(root->hdr.c_contxt, forn->init, forn->test, forn->incr,forn->stemnt,
ststack->state,thisstate,thisstate);
forn->incr = NULL;
fdepth--;
}
//pop state
if(ststack == NULL) printf("ERR STSTAE=NULL\n");
stp = ststack;
ststack= ststack->next;
free(stp);
if(ststack != NULL) thisstate = ststack->state; else { thisstate =0; fcount=0; }
} else {
flat_recur(forn->init,&(forn->init));
flat_recur(forn->test,&(forn->test));
flat_recur(forn->incr,&(forn->incr));
flat_recur(forn->stemnt,&(forn->stemnt));
}
return 0;
default:
printf(" UNKNOWN \n");
break;
}
break;
case NODE_T:
switch (root->hdr.type) {
// start of Parc extension
case TN_PARBLOCK:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_PARBLOCK_EMPTY:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
// end of Parc extension
case TN_TRANS_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_FUNC_DECL:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_FUNC_CALL:
/* Only true functions are printed without parens. */
if(ststack != NULL) *parrent = (treenode*)add_if(root->hdr.c_contxt, root,ststack->state);
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_BLOCK:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
return(0);
case TN_ARRAY_DECL:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_EXPR_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_NAME_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_ENUM_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_FIELD_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_PARAM_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_IDENT_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_TYPE_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_DECL:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_DECL_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_DECLS:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_STEMNT_LIST:
flat_recur(root->lnode,&(root->lnode));
if (root->rnode != NULL) {
flat_recur(root->rnode,&(root->rnode));
}
break;
case TN_STEMNT:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_COMP_DECL:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_BIT_FIELD:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_PNTR:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_TYPE_NME:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_INIT_LIST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_INIT_BLK:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_OBJ_DEF:
leaf = (leafnode *) root;
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_OBJ_REF:
leaf = (leafnode *) root;
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_CAST:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_JUMP:
if (root->hdr.tok == FOPT)
{
if(fopt_mode == 0){ printf("FOPT SET\n"); fopt_mode = 1; fdepth=0; fcount=0;}
*parrent = add_initstate(root->hdr.c_contxt);
}
if ((root->hdr.tok == RETURN) || (root->hdr.tok == GOTO))
{
flat_recur(root->lnode,&(root->lnode));
}
break;
case TN_SWITCH:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_INDEX:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_DEREF:
flat_recur(root->lnode,&(root->lnode));
if (root->rnode && (root->rnode->hdr.type == TN_IDENT))
flat_recur(root->rnode,&(root->rnode));
else {
flat_recur(root->rnode,&(root->rnode));
}
break;
case TN_SELECT:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_ASSIGN:
{ leafnode *llp;
llp = (leafnode *) root->lnode;
if(ststack != NULL) *parrent = (treenode*)add_if(root->hdr.c_contxt, root,ststack->state);
//printf(" ==> %s %d %d \n",toksym(root->hdr.tok,1),root->hdr.type,root->hdr.tok);
//flat_recur(root->lnode,&(root->lnode));
//flat_recur(root->rnode,&(root->rnode));
}
break;
case TN_EXPR:
switch (root->hdr.tok) {
case CASE:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case SIZEOF:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case INCR:
case DECR:
if(ststack != NULL) *parrent = (treenode*)add_if(root->hdr.c_contxt, root,ststack->state);
//flat_recur(root->lnode,&(root->lnode));
//flat_recur(root->rnode,&(root->rnode));
break;
case B_AND:
if(root->lnode == NULL)
flat_recur(root->rnode,&(root->rnode));
break;
default:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
}
break;
case TN_WHILE:
if(fopt_mode == 1)
{
//push new state
state_stack *stp;
stp = (state_stack *) malloc(sizeof(state_stack));
if(stp == NULL) printf("stp allocation error\n");
stp->state = fcount;
stp->next = ststack;
ststack = stp;
thisstate = fcount;
fcount++;
fdepth++;
flat_recur(root->rnode,&(root->rnode));
printf("DOING FLAT WHILE\n");
if(ststack->next == NULL) printf("WHATTT ststate->next == NULL\n");
*parrent = add_while(root->hdr.c_contxt, root->lnode, root->rnode,
ststack->state,ststack->next->state,ststack->next->state);
fdepth--;
//pop state
if(ststack == NULL) printf("ERR STSTAE=NULL\n");
stp = ststack;
ststack= ststack->next;
free(stp);
if(ststack != NULL) thisstate = ststack->state; else { thisstate =0; fcount=0; }
} else {
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
}
return(0);
case TN_DOWHILE:
flat_recur(root->rnode,&(root->rnode));
flat_recur(root->lnode,&(root->lnode));
break;
case TN_LABEL:
flat_recur(root->lnode,&(root->lnode));
flat_recur(root->rnode,&(root->rnode));
break;
case TN_EMPTY:
default:
printf("ERR 0\n");
return 0;