Return true if just‐in‐time compiling optimization is supported by current hardware platform and false otherwise. Note that JIT support is limited to the following hardware platforms: ` ARM 32‐bit (v5, v7, and Thumb2) ARM 64‐bit Intel x86 32‐bit and 64‐bit MIPS 32‐bit and 64‐bit Power PC 32‐bit and 64‐bit SPARC 32‐bit `