LLVM-VE rpm package

As we mentioned in the past post, the rpm package for llvm-ve is now available on VEOS yum Repository on the Web.

You can install llvm-ve:

% yum install https://sx-aurora.com/repos/veos/ef_extra/x86_64/llvm-ve-1.1.0-1.1.0-1.x86_64.rpm \
              https://sx-aurora.com/repos/veos/ef_extra/x86_64/llvm-ve-link-1.1.0-1.x86_64.rpm

The llvm-ve package is all in one package that includes llvm, clang and runtimes. Files are installed into /opt/nec/nosupport/llvm-ve-1.1.0. The llvm-ve-link makes a symlink from /opt/nec/nosupport/llvm-ve to there.

You can compile your program like this.

% /opt/nec/nosupport/llvm-ve/bin/clang -target ve-linux hello.c

Sometimes auto vectorization does not work well with llvm-ve because we have not yet ported llvm’s autovec to VE. In that case, please use additional options.

% /opt/nec/nosupport/llvm-ve/bin/clang -target ve-linux -fno-vectorize -fno-slp-vectorize hello.c

See also

• Release LLVM for VE