11.11. Loop unrolling

The UNROLL module implements compile-time loop unrolling. The unroll macro replaces a for loop with a constant range bound by stamping out each iteration as separate inlined code, eliminating loop overhead.

All functions and symbols are in “unroll” module, use require to get access to it.

require daslib/unroll

Example:

require daslib/unroll

    [export]
    def main() {
        unroll() {
            for (i in range(4)) {
                print("step {i}\n")
            }
        }
    }
    // output:
    // step 0
    // step 1
    // step 2
    // step 3

11.11.1. Function annotations

UnrollMacro

This macro implements loop unrolling in the form of unroll function.

11.11.2. Unrolling

• unroll (blk: block<():void>)

unroll(blk: block<():void> )

Unrolls the for loop (with fixed range)

Arguments:

• blk : block<void>