== Progress == * Zero/sign extension elimination with widening types (TCWG-546 - 10/10) - Fixed regression failures - Fixed bootstrapping issues for ARM and AArch64 - Re-factored and added some comments - x86-64 Bootstrapped and regression tested for all languages with forced promotion. There is 6 differences in scanning for certain instructions. All the execution tests are passing. Needs further investigation. == Plan == * Continue with Zero/sign extension pass. - Benchmarking - Get patch ready for upstream discussion

* Improve block memory operations by GCC (TCWG-142) - Start work on this