[VE] Support VE architecture

[kaz7]

Summary

Modify LNT to let it know VE architecture in order to run
llvm-test-suite well on NEC SX-Aurora VE architecture.

[kaz7]

Hi,

This is a patch to support NEC SX-Aurora TSUBASA Vector Engine (VE) architecture to compile llvm-test-suite.

Previously, I asked how to apply this patch at https://lists.llvm.org/pipermail/llvm-dev/2019-December/137537.html
and received suggestions to post it through phabricator.

So, I send this and add people actively work on lnt. Please let me know if you need more information.

Thanks in advance.

[kristof.beyls]

This seems OK to me.
I'd just remark that these days, I think most people using LNT to compile/run/benchmark test-suite use "lnt runtest test-suite" rather than "lnt runtest nt".
Therefore, maybe it'd be better if you'd look into how to make that working on the VE architecture (i.e. look at file lnt/tests/test_suite.py).

[kaz7]

Thank you about "lnt runtest test-suite" information. I tried it before, but had several errors not handled at that time. I definitely try it again later. At the moment, I appreciate landing this patch to nt.py. Thanks.

[kaz7]

Hi, this patch is accepted and landed like (https://github.com/llvm/llvm-lnt/commit/9c9f6f8aaca07b783b4a2db2b68f7878a61bd97a). Thank you.

However, this patch is not closed automatically. Should I close this one by myself? Other patches are automatically closed, so I am wondering. Thanks in advance.

[kaz7]

Closing this one since it is landed already. Thank you for reviewing and landing this.

lnt/tests/nt.py

def compute_run_make_variables(self):
             elif arch in ('aarch64', 'arm64'):
                 llvm_arch = 'AArch64'
             elif arch.startswith('alpha'):
                 llvm_arch = 'Alpha'
             elif arch.startswith('sparc'):
                 llvm_arch = 'Sparc'
             elif arch in ('mips', 'mipsel', 'mips64', 'mips64el'):
                 llvm_arch = 'Mips'
+            elif arch in ('ve'):
+                llvm_arch = 'VE'
 
         if llvm_arch is not None:
             make_variables['ARCH'] = llvm_arch
         else:
             logger.warning("unable to infer ARCH, " +
                            "some tests may not run correctly!")
 
         # Add in any additional make flags passed in via --make-param.