optimization/6162: gcc 3.0.4: certain i386 asm reloader ice

[Kevin Ryde]

Michael Matz <matz@suse.de> writes:
>
> To fix this indeed would be quite involved, as we would need to handle
> then all permutations of swappings (of which there are 4 with two pairs).

As a suggestion in the interim, perhaps internally all but the last
commutative could be quietly dropped.  If only the last is acted on
now anyway then it'd be no loss, and it'd let applications give full
information, if that might be useful in the future.