static void cmp(int op, Symbol p, long n, int lab) {
Type ty = signedint(p->type);
listnodes(eqtree(op,
cast(idtree(p), ty),
cnsttree(ty, n)),
lab, 0);
}
Tree eqtree(int op, Tree l, Tree r) {
Type xty = unqual(l->type), yty = unqual(r->type);
if (isptr(xty) && isnullptr(r)
|| isptr(xty) && !isfunc(xty->type) && isvoidptr(yty)
|| (isptr(xty) && isptr(yty)
&& eqtype(unqual(xty->type), unqual(yty->type), 1))) {
Type ty = unsignedptr;
l = cast(l, ty);
r = cast(r, ty);
return simplify(mkop(op,ty), inttype, l, r);
}
if (isptr(yty) && isnullptr(l)
|| isptr(yty) && !isfunc(yty->type) && isvoidptr(xty))
return eqtree(op, r, l);
return cmptree(op, l, r);
}
