simd/archsimd: add SVE NotEqual

Lower to ZCMPNE for both integer signednesses and ZFCMNE for floats,
predicated-only like ZCMPGT. NEON has no native not-equal compare; SVE
does, so the API is provided directly.

For #79781.

Change-Id: Id58641731b0ea682b699015c3a2eda0d8563b568
Reviewed-on: https://go-review.googlesource.com/c/go/+/822935
Reviewed-by: Junyang Shao <shaojunyang@google.com>
Auto-Submit: Junyang Shao <shaojunyang@google.com>
LUCI-TryBot-Result: golang-scoped@luci-project-accounts.iam.gserviceaccount.com <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: David Chase <drchase@google.com>
10 files changed
tree: 1235f40009a8a4387f18383d34fc4b913669943b
  1. .github/
  2. api/
  3. doc/
  4. lib/
  5. misc/
  6. src/
  7. test/
  8. .gitattributes
  9. .gitignore
  10. codereview.cfg
  11. CONTRIBUTING.md
  12. go.env
  13. LICENSE
  14. PATENTS
  15. README.md
  16. SECURITY.md
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