RFR: 8341052: SHA-512 implementation using SHA-NI [v4]

[Smita Kamath]

> Hi, I want to submit an optimization for SHA-512 algorithm using SHA instructions (sha512msg1, sha512msg2 and sha512rnds2) . Kindly review the code and provide feedback. Thank you.

Smita Kamath has updated the pull request incrementally with one additional commit since the last revision:

  Updated code as per review comments

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/20633/files
  - new: https://git.openjdk.org/jdk/pull/20633/files/85c1aea9..3cb9175a

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=20633&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=20633&range=02-03

  Stats: 13 lines in 2 files changed: 1 ins; 0 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/20633.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/20633/head:pull/20633

PR: https://git.openjdk.org/jdk/pull/20633