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Re: will multi-register returns get fixed?
>>>>> On Fri, 6 Jun 2003 22:45:00 +0200 (CEST), Michael Matz <matz@suse.de> said:
Michael> Hi, On Fri, 6 Jun 2003, David Mosberger wrote:
>> However, I don't think the problem is fixed in general. If I try
>> to return a pair of 32-bit "long" values, I get:
Michael> I suppose you mean a struct by value? Well, the x86 ABI
Michael> defines to return struct by value in caller-provided
Michael> memory, to which a pointer is passed as first hidden
Michael> parameter. _Even_ if such struct is small enough to fit
Michael> into one or two registers (e.g. even if it contains only
Michael> one int).
Argh, that's bad. I assume most RISC platforms would be affected,
too, though, right? (I'm pretty sure Alpha would be affected.)
So, on the platforms that _can_ return (small) structures in
registers, is this something that can be fixed? Or do the GCC
developers just not care enough about this case?
--david