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go / go / a424f6e45e29960c933a7ccc1cd8fc9bb2766f15
commita424f6e45e29960c933a7ccc1cd8fc9bb2766f15[log] [tgz]
authorLynn Boger <laboger@linux.vnet.ibm.com>Wed Sep 23 11:06:39 2020 -0400
committerLynn Boger <laboger@linux.vnet.ibm.com>Mon Sep 28 18:13:48 2020 +0000
treeae2e0f78c969a9c6b4fc62b33a7a27974d590943
parent874b3132a84cf76da6a48978826c04c380a37a50 [diff]
cmd/asm,cmd/compile,cmd/internal/obj/ppc64: add extswsli support on power9

This adds support for the extswsli instruction which combines
extsw followed by a shift.

New benchmark demonstrates the improvement:
name      old time/op  new time/op  delta
ExtShift  1.34µs ± 0%  1.30µs ± 0%  -3.15%  (p=0.057 n=4+3)

Change-Id: I21b410676fdf15d20e0cbbaa75d7c6dcd3bbb7b0
Reviewed-on: https://go-review.googlesource.com/c/go/+/257017
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Carlos Eduardo Seo <carlos.seo@gmail.com>
Trust: Lynn Boger <laboger@linux.vnet.ibm.com>
11 files changed
tree: ae2e0f78c969a9c6b4fc62b33a7a27974d590943
  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
  18. SECURITY.md
README.md

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