Flatten control flow

This option will enable the Control Flow Flattener (CFF). This feature is conservative in it’s estimates of what can be flattened, if a block can’t be flattened without side effects, it will be discarded from the flattening queue. CFF is applied recursively to failed blocks, meaning if a block is discarded from the flattening queue, its children may be flattened individually.

The control flow flattener supports the following branching syntaxes:

• if statements
• while and repeat loops
• numeric for loops
• break and continue statements
• for-in loops and even support for Luau’s generalized iteration

The following child options are available:

• Wrap CFF blocks: This will move some CFF blocks into their own closure in a lookup table.
• Hoist locals: Will move local storage into a lookup table for CFF blocks. Useful to cut down on the number of used locals.