> Joe Perches wrote: > > On Tue, 2017-05-16 at 23:42 +0300, Alexey Dobriyan wrote: > > num_to_str() optimizes printing small integers [0..9], so the same > > check higher in callchain is unnecessary. > > Doesn't the optimization exists for the frequent use of 0 > in seq output? > > These seq_put_decimal calls are now slightly more expensive.
That additional CALL instruction is hardly measurable so you're adding branch to skip branch in the next function.
