Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
By using the fact that one input is scalar
we can speed up computation of scalar_add by packing the blocks.
As the main loop as a log2 complexity, it means we just do one less
iteration, but its enough to bring a 15% to 20% improvements.
In other words a 64bits scalar add is as fast as a 32bit add
Same idea is applicable to scalar_sub and overflowing variants