Changelog

• Add VF immediate support for divm/sqrtm/pow,
• Emit scalar atomic load,
• Fix vISA options printing in the .asm file,
• Set loop unroll threshold for high register pressure shaders via IGC flag,
• Control the register pressure threshold used to limit the loop unroll to smaller loops via IGC flag,
• Support struct type return values for caller/callee,
• Dumping basic-blocks type by name,
• Support for cl_khr_subgroup_extended_types,
• Fixed referencing null iterator when KernelArgs size is 0,
• Added an ocl internal option -cl-intel-vector-coalesing=<0-5> to control vector coalescing,
• Fix alignment for MemCpy instructions,
• Added SPIRV-Tools configuration.

Ubuntu 18.04 binary packages for LLVM9/Clang9 are included.