[ACTIVITY] Week 14

Summary: * Investigate conditional compare.

Details: 1. Expand conditional compare as TRUTH_AND_EXPR/TRUTH_IOR_EXPR for tests. 2. Test tree-level changes for conditional compare. * Fix/workaround most ICE issues in regression tests. * Still some fails which expected VRP can optimize the cases. 3. Try to build Coremark and find that conditional compare does block optimizations, which leads to worse performance.

Plan: * Investigate VRP and other optimizations to handle conditional compare. * Raise the propose for upstream discussion.

Planned leaves: * April 4-8: Chinese Ching Ming Festival and annual leaves. * April 12: Internal team event. * April 16-17: Internal training.

Best Regards! -Zhenqiang