Fixed Issues / Improvements
- Re-enabled a fast path for i64 div/rem ops.
- Fixed assertion in GenUpdateCB.
- Fix for function pointers used in constant expressions.
- Adjust atomic builtins to work with Khronos SPIR-V Translator.
- Added error output messages for opencl-clang library.
- Minor fixes and improvements.
Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.