[jdk17u-dev] RFR: 8299158: Improve MD5 intrinsic on AArch64

[Yi-Fan Tsai]

This change is nearly clean. 17u uses macro and tip uses functions.

TestMD5Intrinsics and TestMD5MultiBlockIntrinsics are tested with [the patch](https://github.com/openjdk/jdk/pull/10954).

Similar performance improvement is observed.

baseline

Benchmark                    (digesterName)  (length)  (provider)   Mode  Cnt     Score   Error   Units
MessageDigests.digest                   md5        64     DEFAULT  thrpt   50  2987.994 ? 3.246  ops/ms
MessageDigests.digest                   md5      1024     DEFAULT  thrpt   50   370.344 ? 0.683  ops/ms
MessageDigests.digest                   md5     16384     DEFAULT  thrpt   50    24.773 ? 0.038  ops/ms
MessageDigests.getAndDigest             md5        64     DEFAULT  thrpt   50  2543.829 ? 3.060  ops/ms
MessageDigests.getAndDigest             md5      1024     DEFAULT  thrpt   50   364.196 ? 0.319  ops/ms
MessageDigests.getAndDigest             md5     16384     DEFAULT  thrpt   50    24.741 ? 0.021  ops/ms


optimized

Benchmark                    (digesterName)  (length)  (provider)   Mode  Cnt     Score   Error   Units
MessageDigests.digest                   md5        64     DEFAULT  thrpt   50  3671.576 ? 2.780  ops/ms
MessageDigests.digest                   md5      1024     DEFAULT  thrpt   50   462.163 ? 0.724  ops/ms
MessageDigests.digest                   md5     16384     DEFAULT  thrpt   50    31.137 ? 0.058  ops/ms
MessageDigests.getAndDigest             md5        64     DEFAULT  thrpt   50  3015.830 ? 4.608  ops/ms
MessageDigests.getAndDigest             md5      1024     DEFAULT  thrpt   50   453.550 ? 0.263  ops/ms
MessageDigests.getAndDigest             md5     16384     DEFAULT  thrpt   50    31.039 ? 0.006  ops/ms

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

Commit messages:
 - 8299158: Improve MD5 intrinsic on AArch64

Changes: https://git.openjdk.org/jdk17u-dev/pull/1037/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1037&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8299158
  Stats: 8 lines in 1 file changed: 1 ins; 1 del; 6 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1037.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/1037/head:pull/1037

PR: https://git.openjdk.org/jdk17u-dev/pull/1037