CPU Recognition and JIT

• Implement CPU auto-recognition for the CurrentCPU target
• Re-introduce field size equality checks to the CPU JIT compiler
• Replace the legacy CPU just-in-time compiler with an object-oriented, modular structure

CPU Optimizations

The sequence of optimizations applied to a CPU code shall be controlled and carried out by the CPU optimization driver pystencils.backend.kernelcreation.cpu_optimization.optimize_cpu. Each individual optimization pass shall be implemented in a dedicated class within the pystencils.backend.kernelcreation.transformations module.

Loop Optimizations

• OpenMP (!383 (merged))
• Loop-Invariant Code Motion (!373 (merged))
• Loop Cutting and condition elimination (!376 (merged), !390 (merged))
• Loop Tiling / Blocking
• Loop Splitting

Vectorization

See #104.