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Re: GCC 3.0 Release Criteria
According to Richard Henderson:
> On Fri, Apr 28, 2000 at 11:53:12AM -0700, Chip Salzenberg wrote:
> > For example, stack unwinding for exceptions may not work any longer if
> > the compiler's definition of the number of hard regs changes. The x86
> > target got bit by this a few months ago. The "fix" was to separate
> > the number of regs saved from the number of hard regs in the processor
> > definition. That happens to work for the x86, but what if it didn't?
>
> Then you have ABI changes elsewhere and the code won't interoperate
> anyway. And at a much more fundamental level than exception handling.
Are you so sure that all such possible incompatibilities can be so
easily handwaved away? IMO, an inability to come up with a possible
_real_ breakage of libgcc merely bespeaks a failure of imagination.
--
Chip Salzenberg - a.k.a. - <chip@valinux.com>
"I wanted to play hopscotch with the impenetrable mystery of existence,
but he stepped in a wormhole and had to go in early." // MST3K