differentiating between tree node and phi node

[Diego Novillo]

On 9/16/07, ranjith kumar <ranjit_kumar_b4u@yahoo.co.uk> wrote:

> I want to know whether the returned pointer to the
> statement is a pointer to an 'PHI node' or pointer to
> a 'tree node'.

It's always a 'tree'.  If you want to know if it's a PHI node or a
MODIFY_EXPR or a CALL_EXPR or an ASM_EXPR, you need to use TREE_CODE:
if (TREE_CODE (SSA_NAME_DEF_STMT (name)) == PHI_NODE).