Beispiel #1
0
/*
 * Allocate off bits on the stack.  p is a tree that when evaluated
 * is the multiply count for off, t is a storeable node where to write
 * the allocated address.
 */
void
spalloc(NODE *t, NODE *p, OFFSZ off)
{
	NODE *sp;

	p = buildtree(MUL, p, bcon(off/SZCHAR));
	p = buildtree(PLUS, p, bcon(30));
	p = buildtree(AND, p, xbcon(-16, NULL, UNSIGNED));
	p = cast(p, UNSIGNED, 0);

	/* sub the size from sp */
	sp = block(REG, NIL, NIL, UNSIGNED+PTR, 0, 0);
	slval(sp, 0);
	sp->n_rval = STKREG;
	p = (buildtree(MINUSEQ, sp, p));
	ecomp(p);

	/* save the address of sp */
	sp = block(REG, NIL, NIL, PTR+UNSIGNED, t->n_df, t->n_ap);
	slval(sp, 0);
	sp->n_rval = STKREG;
	t->n_type = sp->n_type;
	p = (buildtree(ASSIGN, t, sp)); /* Emit! */
	ecomp(p);

}
Beispiel #2
0
void
myp2tree(NODE *p)
{
	struct symtab *sp;
	NODE *l;

	if (cdope(p->n_op) & CALLFLG) {
		if (p->n_left->n_op == ADDROF &&
		    p->n_left->n_left->n_op == NAME) {
			p->n_left = nfree(p->n_left);
			l = p->n_left;
			l->n_op = ICON;
			if (l->n_sp->sclass != STATIC &&
			    l->n_sp->sclass != USTATIC)
				l->n_sp =
				    picsymtab(l->n_sp->sname, "@PLTPC", "");
		}
	}

	if (p->n_op != FCON)
		return;

	sp = IALLOC(sizeof(struct symtab));
	sp->sclass = STATIC;
	sp->sap = 0;
	sp->slevel = 1; /* fake numeric label */
	sp->soffset = getlab();
	sp->sflags = 0;
	sp->stype = p->n_type;
	sp->squal = (CON >> TSHIFT);
	sp->sname = NULL;

	locctr(DATA, sp);
	defloc(sp);
	ninval(0, tsize(sp->stype, sp->sdf, sp->sap), p);

	p->n_op = NAME;
	slval(p, 0);
	p->n_sp = sp;

}
Beispiel #3
0
/* clocal() is called to do local transformations on
 * an expression tree preparitory to its being
 * written out in intermediate code.
 *
 * the major essential job is rewriting the
 * automatic variables and arguments in terms of
 * REG and OREG nodes
 * conversion ops which are not necessary are also clobbered here
 * in addition, any special features (such as rewriting
 * exclusive or) are easily handled here as well
 */
NODE *
clocal(NODE *p)
{

	register struct symtab *q;
	register NODE *r, *l;
	register int o;
	register int m;
	TWORD t;

#ifdef PCC_DEBUG
	if (xdebug) {
		printf("clocal: %p\n", p);
		fwalk(p, eprint, 0);
	}
#endif
	switch( o = p->n_op ){

	case NAME:
		if ((q = p->n_sp) == NULL)
			return p; /* Nothing to care about */

		switch (q->sclass) {

		case PARAM:
		case AUTO:
			/* fake up a structure reference */
			r = block(REG, NIL, NIL, PTR+STRTY, 0, 0);
			slval(r, 0);
			r->n_rval = FPREG;
			p = stref(block(STREF, r, p, 0, 0, 0));
			break;

		case USTATIC:
			if (kflag == 0)
				break;
			/* FALLTHROUGH */
		case STATIC:
#ifdef TLS
			if (q->sflags & STLS) {
				p = tlsref(p);
				break;
			}
#endif
			break;

		case REGISTER:
			p->n_op = REG;
			slval(p, 0);
			p->n_rval = q->soffset;
			break;

		case EXTERN:
		case EXTDEF:
			if (q->sflags & STLS) {
				p = tlsref(p);
				break;
			}
			if (kflag == 0 || statinit)
				break;
			if (blevel > 0)
				p = picext(p);
			break;
		}
		break;

	case UCALL:
	case USTCALL:
		/* For now, always clear eax */
		l = block(REG, NIL, NIL, INT, 0, 0);
		regno(l) = RAX;
		p->n_right = clocal(buildtree(ASSIGN, l, bcon(0)));
		p->n_op -= (UCALL-CALL);
		break;

	case SCONV:
		/* Special-case shifts */
		if (p->n_type == LONG && (l = p->n_left)->n_op == LS && 
		    l->n_type == INT && l->n_right->n_op == ICON) {
			p->n_left = l->n_left;
			p = buildtree(LS, p, l->n_right);
			nfree(l);
			break;
		}

		l = p->n_left;

		/* Float conversions may need extra casts */
		if (p->n_type == FLOAT || p->n_type == DOUBLE ||
		    p->n_type == LDOUBLE) {
			if (l->n_type < INT || l->n_type == BOOL) {
				p->n_left = block(SCONV, l, NIL,
				    ISUNSIGNED(l->n_type) ? UNSIGNED : INT,
				    l->n_df, l->n_ap);
				break;
			}
		}

		if (p->n_type == l->n_type) {
			nfree(p);
			return l;
		}

		if ((p->n_type & TMASK) == 0 && (l->n_type & TMASK) == 0 &&
		    tsize(p->n_type, p->n_df, p->n_ap) ==
		    tsize(l->n_type, l->n_df, l->n_ap)) {
			if (p->n_type != FLOAT && p->n_type != DOUBLE &&
			    l->n_type != FLOAT && l->n_type != DOUBLE &&
			    l->n_type != LDOUBLE && p->n_type != LDOUBLE) {
				if (l->n_op == NAME || l->n_op == UMUL ||
				    l->n_op == TEMP) {
					l->n_type = p->n_type;
					nfree(p);
					return l;
				}
			}
		}

		if (DEUNSIGN(p->n_type) == INT && DEUNSIGN(l->n_type) == INT &&
		    coptype(l->n_op) == BITYPE && l->n_op != COMOP &&
		    l->n_op != QUEST && l->n_op != ASSIGN) {
			l->n_type = p->n_type;
			nfree(p);
			return l;
		}

		o = l->n_op;
		m = p->n_type;

		if (o == ICON) {
			CONSZ val = glval(l);

			/* if named constant and pointer, allow cast 
			   to long/ulong */
			if (!nncon(l) && (l->n_type & TMASK) &&
			    (m == LONG || m == ULONG)) {
				l->n_type = m;
				l->n_ap = 0;
				return nfree(p);
			}

			if (ISPTR(l->n_type) && !nncon(l))
				break; /* cannot convert named pointers */

			if (!ISPTR(m)) /* Pointers don't need to be conv'd */
			    switch (m) {
			case BOOL:
				val = nncon(l) ? (val != 0) : 1;
				slval(l, val);
				l->n_sp = NULL;
				break;
			case CHAR:
				slval(l, (char)val);
				break;
			case UCHAR:
				slval(l, val & 0377);
				break;
			case SHORT:
				slval(l, (short)val);
				break;
			case USHORT:
				slval(l, val & 0177777);
				break;
			case UNSIGNED:
				slval(l, val & 0xffffffff);
				break;
			case INT:
				slval(l, (int)val);
				break;
			case LONG:
			case LONGLONG:
				slval(l, (long long)val);
				break;
			case ULONG:
			case ULONGLONG:
				slval(l, val);
				break;
			case VOID:
				break;
			case LDOUBLE:
			case DOUBLE:
			case FLOAT:
				l->n_op = FCON;
				l->n_dcon = fltallo();
				FCAST(l->n_dcon)->fp = val;
				break;
			default:
				cerror("unknown type %d", m);
			}
			l->n_type = m;
			l->n_ap = NULL;
			nfree(p);
			return l;
		} else if (l->n_op == FCON) {
			CONSZ lv;
			if (p->n_type == BOOL)
				lv = !FLOAT_ISZERO(FCAST(l->n_dcon));
			else {
				FLOAT_FP2INT(lv, FCAST(l->n_dcon), m);
			}
			slval(l, lv);
			l->n_sp = NULL;
			l->n_op = ICON;
			l->n_type = m;
			l->n_ap = NULL;
			nfree(p);
			return clocal(l);
		}
		if ((p->n_type == CHAR || p->n_type == UCHAR ||
		    p->n_type == SHORT || p->n_type == USHORT) &&
		    (l->n_type == FLOAT || l->n_type == DOUBLE ||
		    l->n_type == LDOUBLE)) {
			p = block(SCONV, p, NIL, p->n_type, p->n_df, p->n_ap);
			p->n_left->n_type = INT;
			return p;
		}
		break;

	case MOD:
	case DIV:
		if (o == DIV && p->n_type != CHAR && p->n_type != SHORT)
			break;
		if (o == MOD && p->n_type != CHAR && p->n_type != SHORT)
			break;
		/* make it an int division by inserting conversions */
		p->n_left = makety(p->n_left, INT, 0, 0, 0);
		p->n_right = makety(p->n_right, INT, 0, 0, 0);
		p = makety(p, p->n_type, 0, 0, 0);
		p->n_left->n_type = INT;
		break;

	case FORCE:
		/* put return value in return reg */
		p->n_op = ASSIGN;
		p->n_right = p->n_left;
		p->n_left = block(REG, NIL, NIL, p->n_type, 0, 0);
		t = p->n_type;
		if (ISITY(t))
			t = t - (FIMAG-FLOAT);
		p->n_left->n_rval = p->n_left->n_type == BOOL ? 
		    RETREG(CHAR) : RETREG(t);
		break;

	case LS:
	case RS:
		/* shift count must be in a char */
		if (p->n_right->n_type == CHAR || p->n_right->n_type == UCHAR)
			break;
		p->n_right = makety(p->n_right, CHAR, 0, 0, 0);
		break;
	}
#ifdef PCC_DEBUG
	if (xdebug) {
		printf("clocal end: %p\n", p);
		fwalk(p, eprint, 0);
	}
#endif
	return(p);
}
Beispiel #4
0
/* clocal() is called to do local transformations on
 * an expression tree preparitory to its being
 * written out in intermediate code.
 *
 * the major essential job is rewriting the
 * automatic variables and arguments in terms of
 * REG and OREG nodes
 * conversion ops which are not necessary are also clobbered here
 * in addition, any special features (such as rewriting
 * exclusive or) are easily handled here as well
 */
P1ND *
clocal(P1ND *p)
{

	struct attr *ap;
	register struct symtab *q;
	register P1ND *r, *l, *n, *s;
	register int o;
	register int m;

#ifdef PCC_DEBUG
	if (xdebug) {
		printf("clocal: %p\n", p);
		p1fwalk(p, eprint, 0);
	}
#endif
	switch( o = p->n_op ){

	case NAME:
		if ((q = p->n_sp) == NULL)
			return p; /* Nothing to care about */

		switch (q->sclass) {

		case PARAM:
		case AUTO:
			/* fake up a structure reference */
			r = block(REG, NIL, NIL, PTR+STRTY, 0, 0);
			slval(r, 0);
			r->n_rval = FPREG;
			p = stref(block(STREF, r, p, 0, 0, 0));
			break;

		case USTATIC:
			if (kflag == 0)
				break;
			/* FALLTHROUGH */
		case STATIC:
#ifdef TLS
			if (q->sflags & STLS) {
				p = tlsref(p);
				break;
			}
#endif
			if (kflag == 0) {
				if (q->slevel == 0)
					break;
			} else if (kflag && !statinit && blevel > 0 &&
#ifdef GCC_COMPAT
			    attr_find(q->sap, GCC_ATYP_WEAKREF)) {
#else
			    0) {
#endif
				/* extern call */
				p = picext(p);
			} else if (blevel > 0 && !statinit)
				p = picstatic(p);
			break;

		case REGISTER:
			p->n_op = REG;
			slval(p, 0);
			p->n_rval = q->soffset;
			break;

		case EXTERN:
		case EXTDEF:
#ifdef TLS
			if (q->sflags & STLS) {
				p = tlsref(p);
				break;
			}
#endif

#ifdef PECOFFABI
			if (q->sflags & SDLLINDIRECT)
				p = import(p);
#endif
#ifdef GCC_COMPAT
			if ((ap = attr_find(q->sap,
			    GCC_ATYP_VISIBILITY)) != NULL &&
			    strcmp(ap->sarg(0), "hidden") == 0)
				printf(PRTPREF "\t.hidden %s\n", getsoname(q));
#endif
			if (kflag == 0)
				break;
			if (blevel > 0 && !statinit)
				p = picext(p);
			break;
		}
		break;

	case ADDROF:
		if (kflag == 0 || blevel == 0 || statinit)
			break;
		/* char arrays may end up here */
		l = p->n_left;
		if (l->n_op != NAME ||
		    (l->n_type != ARY+CHAR && l->n_type != ARY+WCHAR_TYPE))
			break;
		l = p;
		p = picstatic(p->n_left);
		p1nfree(l);
		if (p->n_op != UMUL)
			cerror("ADDROF error");
		l = p;
		p = p->n_left;
		p1nfree(l);
		break;

	case UCALL:
		if (kflag == 0)
			break;
		l = block(REG, NIL, NIL, INT, 0, 0);
		l->n_rval = EBX;
		p->n_right = buildtree(ASSIGN, l, tempnode(gotnr, INT, 0, 0));
		p->n_op -= (UCALL-CALL);
		break;

	case USTCALL:
#if defined(os_openbsd)
		ap = strattr(p->n_left->n_ap);
		if (ap->amsize == SZCHAR || ap->amsize == SZSHORT ||
		    ap->amsize == SZINT || ap->amsize == SZLONGLONG)
#else
		if (attr_find(p->n_left->n_ap, ATTR_COMPLEX) &&
		    (ap = strattr(p->n_left->n_ap)) &&
		    ap->amsize == SZLONGLONG)
#endif
		{
			/* float complex */
			/* fake one arg to make pass2 happy */
			p->n_right = block(FUNARG, bcon(0), NIL, INT, 0, 0);
			p->n_op -= (UCALL-CALL);
			break;
		}

		/* Add hidden arg0 */
		r = block(REG, NIL, NIL, INCREF(VOID), 0, 0);
		regno(r) = EBP;
#ifdef GCC_COMPAT
		if ((ap = attr_find(p->n_ap, GCC_ATYP_REGPARM)) != NULL &&
		    ap->iarg(0) > 0) {
			l = block(REG, NIL, NIL, INCREF(VOID), 0, 0);
			regno(l) = EAX;
			p->n_right = buildtree(ASSIGN, l, r);
		} else
#endif
			p->n_right = block(FUNARG, r, NIL, INCREF(VOID), 0, 0);
		p->n_op -= (UCALL-CALL);

		if (kflag == 0)
			break;
		l = block(REG, NIL, NIL, INT, 0, 0);
		regno(l) = EBX;
		r = buildtree(ASSIGN, l, tempnode(gotnr, INT, 0, 0));
		p->n_right = block(CM, r, p->n_right, INT, 0, 0);
		break;
	
	/* FALLTHROUGH */
#if defined(MACHOABI)
	case CALL:
	case STCALL:
		if (p->n_type == VOID)
			break;

		r = tempnode(0, p->n_type, p->n_df, p->n_ap);
		l = tcopy(r);
		p = buildtree(COMOP, buildtree(ASSIGN, r, p), l);
#endif
			
		break;

#ifdef notyet
	/* XXX breaks sometimes */
	case CBRANCH:
		l = p->n_left;

		/*
		 * Remove unnecessary conversion ops.
		 */
		if (!clogop(l->n_op) || l->n_left->n_op != SCONV)
			break;
		if (coptype(l->n_op) != BITYPE)
			break;
		if (l->n_right->n_op != ICON)
			break;
		r = l->n_left->n_left;
		if (r->n_type >= FLOAT)
			break;
		if (toolarge(r->n_type, l->n_right->n_lval))
			break;
		l->n_right->n_type = r->n_type;
		if (l->n_op >= ULE && l->n_op <= UGT)
			l->n_op -= (UGT-ULE);
		p->n_left = buildtree(l->n_op, r, l->n_right);
		p1nfree(l->n_left);
		p1nfree(l);
		break;
#endif

	case PCONV:
		l = p->n_left;

		/* Make int type before pointer */
		if (l->n_type < INT || l->n_type == LONGLONG || 
		    l->n_type == ULONGLONG || l->n_type == BOOL) {
			/* float etc? */
			p->n_left = block(SCONV, l, NIL, UNSIGNED, 0, 0);
		}
		break;

	case SCONV:
		if (p->n_left->n_op == COMOP)
			break;  /* may propagate wrong type later */
		l = p->n_left;

		if (p->n_type == l->n_type) {
			p1nfree(p);
			return l;
		}

		if ((p->n_type & TMASK) == 0 && (l->n_type & TMASK) == 0 &&
		    tsize(p->n_type, p->n_df, p->n_ap) ==
		    tsize(l->n_type, l->n_df, l->n_ap)) {
			if (p->n_type != FLOAT && p->n_type != DOUBLE &&
			    l->n_type != FLOAT && l->n_type != DOUBLE &&
			    l->n_type != LDOUBLE && p->n_type != LDOUBLE) {
				if (l->n_op == NAME || l->n_op == UMUL ||
				    l->n_op == TEMP) {
					l->n_type = p->n_type;
					p1nfree(p);
					return l;
				}
			}
		}

		if (DEUNSIGN(p->n_type) == INT && DEUNSIGN(l->n_type) == INT &&
		    coptype(l->n_op) == BITYPE && l->n_op != COMOP &&
		    l->n_op != QUEST && l->n_op != ASSIGN) {
			l->n_type = p->n_type;
			p1nfree(p);
			return l;
		}

		o = l->n_op;
		m = p->n_type;

		if (o == ICON) {
			/*
			 * Can only end up here if o is an address,
			 * and in that case the only compile-time conversion
			 * possible is to int.
			 */
			if ((TMASK & l->n_type) == 0 && l->n_sp == NULL)
				cerror("SCONV ICON");
			if (l->n_sp == 0) {
				p->n_type = UNSIGNED;
				concast(l, m);
			} else if (m != INT && m != UNSIGNED)
				break;
			l->n_type = m;
			l->n_ap = 0;
			p1nfree(p);
			return l;
		} else if (l->n_op == FCON)
			cerror("SCONV FCON");
		if ((p->n_type == CHAR || p->n_type == UCHAR ||
		    p->n_type == SHORT || p->n_type == USHORT) &&
		    (l->n_type == FLOAT || l->n_type == DOUBLE ||
		    l->n_type == LDOUBLE)) {
			p = block(SCONV, p, NIL, p->n_type, p->n_df, p->n_ap);
			p->n_left->n_type = INT;
			return p;
		}
		break;

	case MOD:
	case DIV:
		if (o == DIV && p->n_type != CHAR && p->n_type != SHORT)
			break;
		if (o == MOD && p->n_type != CHAR && p->n_type != SHORT)
			break;
		/* make it an int division by inserting conversions */
		p->n_left = makety(p->n_left, INT, 0, 0, 0);
		p->n_right = makety(p->n_right, INT, 0, 0, 0);
		o = p->n_type;
		p->n_type = INT;
		p = makety(p, o, 0, 0, 0);
		break;

	case FORCE:
		/* put return value in return reg */
		p->n_op = ASSIGN;
		p->n_right = p->n_left;
		p->n_left = block(REG, NIL, NIL, p->n_type, 0, 0);
		p->n_left->n_rval = p->n_left->n_type == BOOL ? 
		    RETREG(CHAR) : RETREG(p->n_type);
		break;

	case LS:
	case RS:
		/* shift count must be in a char */
		if (p->n_right->n_type == CHAR || p->n_right->n_type == UCHAR)
			break;
		p->n_right = block(SCONV, p->n_right, NIL, CHAR, 0, 0);
		break;

		/* If not using pcc struct return */
	case STASG:
		r = p->n_right;
		if (r->n_op != STCALL && r->n_op != USTCALL)
			break;
		m = tsize(BTYPE(r->n_type), r->n_df, r->n_ap);
		if (m == SZCHAR)
			m = CHAR;
		else if (m == SZSHORT)
			m = SHORT;
		else if (m == SZINT)
			m = INT;
		else if (m == SZLONGLONG)
			m = LONGLONG;
		else
			break;
#if !defined(os_openbsd)
		if (attr_find(r->n_ap, ATTR_COMPLEX) == 0)
			break;	/* float _Complex always in regs */
#endif
		l = buildtree(ADDROF, p->n_left, NIL);
		p1nfree(p);

		r->n_op -= (STCALL-CALL);
		r->n_type = m;

		/* r = long, l = &struct */

		n = tempnode(0, m, r->n_df, r->n_ap);
		r = buildtree(ASSIGN, p1tcopy(n), r);

		s = tempnode(0, l->n_type, l->n_df, l->n_ap);
		l = buildtree(ASSIGN, p1tcopy(s), l);

		p = buildtree(COMOP, r, l);

		l = buildtree(CAST,
		    block(NAME, NIL, NIL, m|PTR, 0, 0), p1tcopy(s));
		r = l->n_right;
		p1nfree(l->n_left);
		p1nfree(l);

		r = buildtree(ASSIGN, buildtree(UMUL, r, NIL), n);
		p = buildtree(COMOP, p, r);
		p = buildtree(COMOP, p, s);
		break;
	}
Beispiel #5
0
/* clocal() is called to do local transformations on
 * an expression tree preparitory to its being
 * written out in intermediate code.
 *
 * the major essential job is rewriting the
 * automatic variables and arguments in terms of
 * REG and OREG nodes
 * conversion ops which are not necessary are also clobbered here
 * in addition, any special features (such as rewriting
 * exclusive or) are easily handled here as well
 */
NODE *
clocal(NODE *p)
{

	register struct symtab *q;
	register NODE *r, *l;
	register int o;
	TWORD t;

#ifdef PCC_DEBUG
	if (xdebug) {
		printf("clocal: %p\n", p);
		fwalk(p, eprint, 0);
	}
#endif
	switch( o = p->n_op ){

	case NAME:
		if ((q = p->n_sp) == NULL)
			return p; /* Nothing to care about */

		switch (q->sclass) {

		case PARAM:
		case AUTO:
			/* fake up a structure reference */
			r = block(REG, NIL, NIL, PTR+STRTY, 0, 0);
			slval(r, 0);
			r->n_rval = FPREG;
			p = stref(block(STREF, r, p, 0, 0, 0));
			break;

		case REGISTER:
			p->n_op = REG;
			slval(p, 0);
			p->n_rval = q->soffset;
			break;

		case USTATIC:
		case STATIC:
			if (kflag == 0)
				break;
			if (blevel > 0 && !statinit)
				p = picstatic(p);
			break;

		case EXTERN:
		case EXTDEF:
			if (kflag == 0)
				break;
			if (blevel > 0 && !statinit)
				p = picext(p);
			break;
		}
		break;

	case ADDROF:
		if (kflag == 0 || blevel == 0 || statinit)
			break;
		/* char arrays may end up here */
		l = p->n_left;
		if (l->n_op != NAME ||
		    (l->n_type != ARY+CHAR && l->n_type != ARY+WCHAR_TYPE))
			break;
		l = p;
		p = picstatic(p->n_left);
		nfree(l);
		if (p->n_op != UMUL)
			cerror("ADDROF error");
		l = p;
		p = p->n_left;
		nfree(l);
		break;

	case STASG: /* convert struct assignment to call memcpy */
		l = p->n_left;
		if (l->n_op == NAME && ISFTN(l->n_sp->stype))
			break; /* struct return, do nothing */
		/* first construct arg list */
		p->n_left = buildtree(ADDROF, p->n_left, 0);
		r = bcon(tsize(STRTY, p->n_df, p->n_ap)/SZCHAR);
		p->n_left = buildtree(CM, p->n_left, p->n_right);
		p->n_right = r;
		p->n_op = CM;
		p->n_type = INT;

		r = block(NAME, NIL, NIL, INT, 0, 0);
		r->n_sp = lookup(addname("memcpy"), SNORMAL);
		if (r->n_sp->sclass == SNULL) {
			r->n_sp->sclass = EXTERN;
			r->n_sp->stype = INCREF(VOID+PTR)+(FTN-PTR);
		}
		r->n_type = r->n_sp->stype;
		p = buildtree(CALL, r, p);
		break;

	case SCONV:
		l = p->n_left;
		if (l->n_op == ICON && ISPTR(l->n_type)) {
			/* Do immediate cast here */
			/* Should be common code */
			q = l->n_sp;
			l->n_sp = NULL;
			l->n_type = UNSIGNED;
			if (concast(l, p->n_type) == 0)
				cerror("clocal");
			p = nfree(p);
			p->n_sp = q;
		}
		break;

	case FORCE:
		/* put return value in return reg */
		p->n_op = ASSIGN;
		p->n_right = p->n_left;
		p->n_left = block(REG, NIL, NIL, p->n_type, 0, 0);
		t = p->n_type;
		if (ISITY(t))
			t = t - (FIMAG-FLOAT);
		p->n_left->n_rval = RETREG(t);
		break;
	}
#ifdef PCC_DEBUG
	if (xdebug) {
		printf("clocal end: %p\n", p);
		fwalk(p, eprint, 0);
	}
#endif
	return(p);
}
Beispiel #6
0
std::unique_ptr<Value>
ArithmeticValueNode::traceValue(std::unique_ptr<Value> lval,
                                std::unique_ptr<Value> rval,
                                std::ostream& out) const
{
    switch (_operator) {
        case ADD:
        {
            if (lval->getType() == Value::String &&
                rval->getType() == Value::String)
            {
                StringValue& slval(static_cast<StringValue&>(*lval));
                StringValue& srval(static_cast<StringValue&>(*rval));
                std::unique_ptr<Value> result(new StringValue(
                            slval.getValue() + srval.getValue()));
                out << "Appended strings '" << slval << "' + '" << srval
                    << "' -> '" << *result << "'.\n";
                return result;
            }
        }
        [[fallthrough]];
        case SUB:
        case MUL:
        case DIV:
        {
            if (lval->getType() == Value::Integer &&
                rval->getType() == Value::Integer)
            {
                IntegerValue& ilval(static_cast<IntegerValue&>(*lval));
                IntegerValue& irval(static_cast<IntegerValue&>(*rval));
                IntegerValue::ValueType res = 0;
                switch (_operator) {
                    case ADD: res = ilval.getValue() + irval.getValue(); break;
                    case SUB: res = ilval.getValue() - irval.getValue(); break;
                    case MUL: res = ilval.getValue() * irval.getValue(); break;
                    case DIV: res = ilval.getValue() / irval.getValue(); break;
                    case MOD: assert(0);
                }
                std::unique_ptr<Value> result(new IntegerValue(res, false));
                out << "Performed integer operation " << ilval << " "
                    << getOperatorName() << " " << irval << " = " << *result
                    << "\n";
                return result;
            }
            NumberValue* nlval(dynamic_cast<NumberValue*>(lval.get()));
            NumberValue* nrval(dynamic_cast<NumberValue*>(lval.get()));
            if (nlval != 0 && nrval != 0) {
                NumberValue::CommonValueType res = 0;
                switch (_operator) {
                    case ADD: res = nlval->getCommonValue()
                                  + nrval->getCommonValue(); break;
                    case SUB: res = nlval->getCommonValue()
                                  - nrval->getCommonValue(); break;
                    case MUL: res = nlval->getCommonValue()
                                  * nrval->getCommonValue(); break;
                    case DIV: res = nlval->getCommonValue()
                                  / nrval->getCommonValue(); break;
                    case MOD: assert(0);
                }
                std::unique_ptr<Value> result(new FloatValue(res));
                out << "Performed float operation " << nlval << " "
                    << getOperatorName() << " " << nrval << " = " << *result
                    << "\n";
                return result;
            }
        }
        break;
        case MOD:
        {
            if (lval->getType() == Value::Integer &&
                rval->getType() == Value::Integer)
            {
                IntegerValue& ilval(static_cast<IntegerValue&>(*lval));
                IntegerValue& irval(static_cast<IntegerValue&>(*rval));
                std::unique_ptr<Value> result(new IntegerValue(
                            ilval.getValue() % irval.getValue(), false));
                out << "Performed integer operation " << ilval << " "
                    << getOperatorName() << " " << irval << " = " << *result
                    << "\n";
                return result;
            }
        }
        break;
    }
    out << "Failed to do operation " << getOperatorName()
        << " on values of type " << lval->getType() << " and "
        << rval->getType() << ". Resolving invalid.\n";
    return std::unique_ptr<Value>(new InvalidValue);
}
Beispiel #7
0
std::unique_ptr<Value>
ArithmeticValueNode::getValue(std::unique_ptr<Value> lval,
                              std::unique_ptr<Value> rval) const
{
    switch (_operator) {
        case ADD:
        {
            if (lval->getType() == Value::String &&
                rval->getType() == Value::String)
            {
                StringValue& slval(static_cast<StringValue&>(*lval));
                StringValue& srval(static_cast<StringValue&>(*rval));
                return std::unique_ptr<Value>(new StringValue(
                            slval.getValue() + srval.getValue()));
            }
        }
        [[fallthrough]];
        case SUB:
        case MUL:
        case DIV:
        {
            if (lval->getType() == Value::Integer &&
                rval->getType() == Value::Integer)
            {
                IntegerValue& ilval(static_cast<IntegerValue&>(*lval));
                IntegerValue& irval(static_cast<IntegerValue&>(*rval));
                IntegerValue::ValueType res = 0;
                switch (_operator) {
                    case ADD: res = ilval.getValue() + irval.getValue(); break;
                    case SUB: res = ilval.getValue() - irval.getValue(); break;
                    case MUL: res = ilval.getValue() * irval.getValue(); break;
                    case DIV:
                        if (irval.getValue() != 0) {
                            res = ilval.getValue() / irval.getValue();
                        } else {
                            throw vespalib::IllegalArgumentException("Division by zero");
                        }
                        break;
                    case MOD: assert(0);
                }
                return std::unique_ptr<Value>(new IntegerValue(res, false));
            }
            NumberValue* nlval(dynamic_cast<NumberValue*>(lval.get()));
            NumberValue* nrval(dynamic_cast<NumberValue*>(rval.get()));
            if (nlval != 0 && nrval != 0) {
                NumberValue::CommonValueType res = 0;
                switch (_operator) {
                    case ADD: res = nlval->getCommonValue()
                                  + nrval->getCommonValue(); break;
                    case SUB: res = nlval->getCommonValue()
                                  - nrval->getCommonValue(); break;
                    case MUL: res = nlval->getCommonValue()
                                  * nrval->getCommonValue(); break;
                    case DIV:
                        if (nrval->getCommonValue() != 0) {
                            res = nlval->getCommonValue()
                                  / nrval->getCommonValue();
                        } else {
                            throw vespalib::IllegalArgumentException("Division by zero");
                        }
                        break;
                    case MOD: assert(0);
                }
                return std::unique_ptr<Value>(new FloatValue(res));
            }
        }
        break;
        case MOD:
        {
            if (lval->getType() == Value::Integer &&
                rval->getType() == Value::Integer)
            {
                IntegerValue& ilval(static_cast<IntegerValue&>(*lval));
                IntegerValue& irval(static_cast<IntegerValue&>(*rval));
                if (irval.getValue() != 0) {
                    return std::unique_ptr<Value>(new IntegerValue(ilval.getValue() % irval.getValue(), false));
                } else {
                    throw vespalib::IllegalArgumentException("Division by zero");
                }
            }
        }
        break;
    }
    return std::unique_ptr<Value>(new InvalidValue);
}