llvm-ve-rv-1.4.0

This is an alpha release of the LLVM-VE + Region Vectorizer (rv) compiler. Features:

• OpenMP outer-loop vectorization with tail predication. To vectorize loops, annotate them with #pragma omp simd safelen(256) and compile with rvclang++ -fopenmp-simd. This release does not support reductions.
• Based on llvm-ve 1.8.0.
• Compiles C/C++ code with vector intrinsics.

github_release_20191210

Merge branch 'feature/use-ts1am-for-1byte-atomic_swap' of ve-llvm/llv…

github_release_20191114

Merge branch 'feature/cleanup-ve-vector' of ve-llvm/llvm-project into…

github_release_20191010

Merge branch 'feature/add-unaligned-atomic-test' of ve-llvm/llvm-proj…

github_release_20190917

Merge branch 'feature/README' of ve-llvm/llvm-project into develop

github_release_20190822_mono

Merge branches 'clang/local/monorepo/develop', 'compiler-rt/local/mon…