RFA: Adding a location_t (or pointer) to tree_exp for 3.4 only.

[Carlo Wood]

On Mon, Oct 06, 2003 at 10:40:54AM -0700, Richard Henderson wrote:
> What leads you to believe that this is true?  Why would not the
> WFL expr just go through expand_expr, and thence to expand_call?

Most code is simply assuming that if an expression is not
a CALL_EXP it is not a call - while a CALL_EXP wrapped in
a WFL *would* be a call.  There is no automatic unwrapping
done due to how expressions are handled at all places;
I ran into a few cases where actually was tested for CALL_EXP
while at that moment it was my WFL containing the CALL_EXP
and then, when talking to Daniel Berlin on IRC he told me
that the same approach has been tried on tree-ssa, giving
rise to the need for a macro STRIP_WFL at all those places.
Because of this past experience with tree-ssa on the same
subject, it seemed not necessary to investigate this further.

-- 
Carlo Wood <carlo@alinoe.com>