On 2014/03/12 17:06:05, m.m.capewell wrote:
On 2014/03/12 12:17:26, ulan wrote:
> Any reason why you didn't choose the algorithm that is used in other
places?
>
> In pseudocode:
>
> counter = field_count - 2;
> while (counter >= 0) {
> store pair of fillers;
> counter -= 2;
> }
> if (counter & 1) {
> store one remaining filler;
> }
As we don't have conditional stores on A64, I was trying to avoid the
50/50
predicted taken branch over the final 'odd' store. I decided a (half)
repeated
store was cheaper than a branch misprediction.
I see, lgtm
https://codereview.chromium.org/190763012/
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