ACCUMULATE_OUTGOING_ARGS and the i386

[Michael Meissner]

On Tue, Oct 20, 1998 at 01:35:43PM -0400, John Wehle wrote:
> > I can't think of any reason off the top of my head why this would be all that
> > difficult.  ACCUMULATE_OUTGOING_ARGS does not change the calling conventions
> > in any incompatible manner that I'm aware of.
> 
> The one thing which caught my attention is the following tm.texi paragraph:
> 
>   Defining both @code{PUSH_ROUNDING} and @code{ACCUMULATE_OUTGOING_ARGS}
>   is not proper.
> 
> The i386 port defines PUSH_ROUNDING and actually pushes a halfword
> when it pushes a byte.  What does ACCUMULATE_OUTGOING_ARGS do in
> this situation?  Is there a compatibility problem?

Since ACCUMULATE_OUTGOING_ARGS never does a push, it doesn't matter (ie, the
whole point of A_O_A is that it builds the stack frame once, and then does
stores to copy the arguments instead of pushes).

-- 
Michael Meissner, Cygnus Solutions (Massachusetts office)
4th floor, 955 Massachusetts Avenue, Cambridge, MA 02139, USA
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