_if:
    IF nesting
    {
        symtab_push();
    }
;

_else:
    ELSE statement
    {
        $$ = SVmove(&$2);
    }
|
    zeroSemVal
;

ifStmnt:      //  $3                   $5                         $8
    _if openParen condition closeParen statement popDead pushDead _else popDead
    {
        $$ = pmv_if(&$3, &$5, &$8);
        symtab_pop();
    }
;
