Is your "complete system data from multiple platforms" from JS apps? Let's also not confuse "a sufficiently smart compiler..." with real-world observed perform

Is your "complete system data from multiple platforms" from JS apps? Let's also not confuse "a sufficiently smart compiler..." with real-world observed performance :) BTW data layout transformations like compressed fields would also be useful on 32-bit. The vast majority of object graphs would be happy with 16 or even 8-bit identifiers, not to mention JS numbers which are all 64-bit floats even on 32-bit platforms.