Integrate LLVM at llvm/llvm-project@8c05c7c8d87c
Integrate LLVM at llvm/llvm-project@8c05c7c8d87c

Updates LLVM usage to match
[8c05c7c8d87c](https://github.com/llvm/llvm-project/commit/8c05c7c8d87c)

PiperOrigin-RevId: 334598568

google/iree,google/iree,google/iree,google/iree,iree-org/iree,iree-org/iree,iree-org/iree,iree-org/iree,iree-org/iree,google/iree,google/iree,iree-org/iree,iree-org/iree,google/iree