igc-1.0.2652

Fixed Issues / Improvements

• Switched to LLVM 9
• Changed versioning of IGC
• Adding Elkhartlake platform
• Open Sourcing Gen 12 content for IGC
• Fix emitting 64-bit atomic inc/dec
• Optimization pass to convert indirect calls to direct calls, which we can inline and avoid stack calls.
• Enable software scoreboard for TGLLP
• Fix for buildbreak when using clang-9 compiler
• Enable part of debugs flags on Release for Linux
• Minor fixes and improvements.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.