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Re: [Bug] subword handling for DI modes
On Tue, Oct 10, 2000 at 03:31:55PM +1100, Ben Elliston wrote:
> [...]
> FYI, I was able to work around this by using:
> (subword SI (reg h-reg) 0)
> So it seems something is amiss in the determination of the operand's mode.
While I don't have a fix for this problem, let me make the observation
that the interpretation of the subword number (the last argument) is
pretty iffy. Some cgen code interprets it an endian-dependent manner
(as in "0th subword as laid out in memory"), and some other code in
endian-independent (as in "0th among least->most significant subwords").
I think the endinan-independent interpretation is more useful, but to
switch over to it would require a fair bit of testing. Still, it's
important to fix this one way or the other.
- FChE
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