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go / go / df5997b99b9a89e1198596366230fa6c4dd50b70
commitdf5997b99b9a89e1198596366230fa6c4dd50b70[log] [tgz]
authorJosh Bleecher Snyder <josharian@gmail.com>Mon Dec 18 10:53:55 2017 -0800
committerBrad Fitzpatrick <bradfitz@golang.org>Tue Feb 13 18:44:40 2018 +0000
treee52ebadceac886d89e1debc251f3eeca21a2816c
parent4b8a7eafef039af1834ef9bfa879257c4a72b7b5 [diff]
regexp: don't allocate when All methods find no matches

name                old time/op    new time/op    delta
FindAllNoMatches-8     216ns ± 3%     122ns ± 2%   -43.52%  (p=0.000 n=10+10)

name                old alloc/op   new alloc/op   delta
FindAllNoMatches-8      240B ± 0%        0B       -100.00%  (p=0.000 n=10+10)

name                old allocs/op  new allocs/op  delta
FindAllNoMatches-8      1.00 ± 0%      0.00       -100.00%  (p=0.000 n=10+10)

This work was supported by Sourcegraph.

Change-Id: I30aac201370ccfb40a6ff637402020ac20f61f70
Reviewed-on: https://go-review.googlesource.com/87418
Run-TryBot: Josh Bleecher Snyder <josharian@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Reviewed-by: Daniel Martí <mvdan@mvdan.cc>
TryBot-Result: Gobot Gobot <gobot@golang.org>
2 files changed
tree: e52ebadceac886d89e1debc251f3eeca21a2816c
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. AUTHORS
  11. CONTRIBUTING.md
  12. CONTRIBUTORS
  13. favicon.ico
  14. LICENSE
  15. PATENTS
  16. README.md
  17. robots.txt
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