3 ms·
Ah yeah, honestly both should probably be passed by pointer anyway. But that makes me wonder about the actual differences here and why... maybe something fun to
by steveklabnik 3mo ago
Ah yeah, honestly both should probably be passed by pointer anyway. But that makes me wonder about the actual differences here and why... maybe something fun to dig into.
- 14113 3mo agoPassing by pointer (in C) reduced the difference a lot, but swapping the order of Add and Int in the Rust enum was enough to reduce the different to: cmp ecx, 1 je .LBB0_3 vs cmp ecx, 2 jne .LBB0_2 LBB0_3 and LBBO_2 were the same in both outputs (up to alpha renaming). Oddly, both sources seemed to be quite sensitive to match switch and enum reordering, resulting in very different generated code. Possibly something to look into further.