[LLVMdev] Removal of IA-64 target
clattner at apple.com
Thu Jul 16 17:51:30 PDT 2009
On Jul 16, 2009, at 2:30 PM, Marcel Moolenaar wrote:
> BTW: I don't run Linux at all, so no Linux/ia64 support.
> I can see how that could be a problem for people.
> Anyway: my case is a weak one and I would understand if the
> target get axed without considering my email/request...
There are two levels of problems with the IA64 backend. On the first
level, it has not been maintained for a long time, and isn't able to
compile hello world to a working app. This is a pretty bad state. On
the second level, it will take a significant amount of work to make it
produce code that is actually *fast* for itanium, because of the
advanced architectural features of the chip.
For us to keep IA64 around (and for it to be minimally useful for your
work!), I think that the backend should pass most of the simple
programs in MultiSource/Benchmarks for example. It does *not* need to
produce amazingly fast code, but the code needs to work. I don't know
how much performance on IA64 is important to you guys, if GCC is
currently acceptable, then probably don't have that high of a
Another question is: who is really interested in FreeBSD/ia64? Is HP
(for example) contributing to this work? If so, perhaps you could
find help in one of the itanium-friendly companies.
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