[LLVMdev] LLVM/Clang on Sparc64

[Venkatraman Govindaraju]

On Sun, Feb 2, 2014 at 11:50 AM, Anton Korobeynikov
<anton at korobeynikov.info> wrote:
> That's really cool! Should we add note to Release Notes?

Definitely. I will add a note mentioning about this in ReleaseNotes.rst.

>
> On Sun, Feb 2, 2014 at 8:05 PM, Venkatraman Govindaraju
> <venkatra at cs.wisc.edu> wrote:
>> Thanks to Jakob's work on Sparcv9 ABI in Clang and recent changes to
>> Sparc code generator, I am happy to announce that Clang can self host
>> itself on Linux/Sparc64 and on FreeBSD/Sparc64.
>>
>> However, it still fails on a few unit tests and nightly tests,
>> primarily due to misaligned memory accesses in the code (See bugs
>> 18482, 18500, 18502, 18536, 18693). Unlike other architectures,
>> misaligned loads/stores cause bus errors in Sparc.
>>
>> To catch bugs specific to Sparc such as the misalignment bugs, it
>> would be great to get some buildbots running on Sparc machines. I see
>> that there are buildbot slaves already running on Sparc machines in
>> GCC compile farm (for example, gcc63, gcc64, listed at
>> http://lab.llvm.org:8011/buildslaves). Is it possible to start running
>> builders on them? If so, what are the procedures to do that?
>>
>>  Note that clang still does not work when it is build as a 32-bit
>> binary, mainly due to the alignment issues in Clang. Also, Clang does
>> not work out of box on Solaris/Sparc yet, due to the lack of support
>> for its toolchain.
>>
>> Thanks,
>> Venkatraman
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>
>
>
> --
> With best regards, Anton Korobeynikov
> Faculty of Mathematics and Mechanics, Saint Petersburg State University