Problem in locate_and_pad_parm

[David Edelsohn]

>>>>> Richard Kenner writes:

Richard> There are no comments near the code in question so I can't even begin
Richard> to understand the issues involved.  For example, as I said, why is
Richard> the "in register" test only relevant for one direction of argument growth
Richard> and not the other?  That seems very suspicious to me.

	Is this related to the expr.h:MUST_PASS_IN_STACK() early
limitation of GCC which we still are carrying around about which way
values are aligned in argument registers?  We had a long discussion about
this a few years ago, but some confusion remained and no changes were
implemented. 

David