RFR: 8283726: x86_64 intrinsics for compareUnsigned method in Integer and Long [v2]

Wed Jun 8 09:39:23 UTC 2022

> Hi,
> 
> This patch implements intrinsics for `Integer/Long::compareUnsigned` using the same approach as the JVM does for long and floating-point comparisons. This allows efficient and reliable usage of unsigned comparison in Java, which is a basic operation and is important for range checks such as discussed in #8620 .
> 
> Thank you very much.

Quan Anh Mai has updated the pull request incrementally with two additional commits since the last revision:

 - remove comments
 - review comments

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/9068/files
  - new: https://git.openjdk.java.net/jdk/pull/9068/files/01c0a07c..b5627135

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=9068&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=9068&range=00-01

  Stats: 44 lines in 3 files changed: 32 ins; 12 del; 0 mod
  Patch: https://git.openjdk.java.net/jdk/pull/9068.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/9068/head:pull/9068

PR: https://git.openjdk.java.net/jdk/pull/9068