PR2076

[Geoff Keating]

> cc: Geoff Keating <geoffk@redhat.com>, gcc@gcc.gnu.org,
>         Stan Shebs <shebs@apple.com>
> Date: Thu, 26 Apr 2001 20:19:13 -0400
> From: David Edelsohn <dje@watson.ibm.com>
> 
> 	The only options is to conform to the ABI.  Period.  GCC must
> interact with other compilers.  If the ABI says that the values will be in
> FPRs, another compiler may expect to find them there.
> 
> 	I will check into this further next week, but I do not believe
> that the compiler has any leeway in the implementation.  Improving code
> quality is an optimization.  One should not hard-code optimizations like
> this; the compiler must deduce the optimization when the information
> allows it to do so.

This seems OK---in any case, if we added such an optimisation, it
should be a separate patch, not as part of a bug fix.  So could you
look at Dale's second patch?  It should generate equivalent code in
all situations but for fixing the aliasing bug.

-- 
- Geoffrey Keating <geoffk@geoffk.org>