The author of these patches is giving a talk at the LLVM dev meeting on Thursday:<p><a href="https://groups.google.com/a/groups.riscv.org/d/msg/sw-dev/Yp7lbvgg2Cg/9iioB3U2IgAJ" rel="nofollow">https://groups.google.com/a/groups.riscv.org/d/msg/sw-dev/Yp...</a>
So they have an LLVM target for RISC-V. They could submit that but they choose to divide it up into pieces and submit them piecemeal. This is the first piece of that meal. If you want to skip to the dessert:<p><a href="https://github.com/riscv/riscv-llvm" rel="nofollow">https://github.com/riscv/riscv-llvm</a>