On Wednesday, 11 December 2013 at 16:40:48 UTC, Joseph Rushton
Wakeling wrote:
[* If I recall right, it's achievable by special-casing iota
when the increment is 1, but don't quote me on that.]
That shouldn't be necessary if the iota operations are inlined
(which, if their not, is a much greater concern!). The increment
is then known to be a particular compile-time constant and code
generated appropriately.
Also, on x86 the gcc and llvm backends both prefer to use add 1
instead of inc, so you wouldn't even expect to see any difference
at that level.
