RFR: 8357223: AArch64: Optimize interpreter profile updates [v2]

[Chad Rakoczy]

> [JDK-8357223](https://bugs.openjdk.org/browse/JDK-8357223)
> 
> The aarch64 version of [JDK-8356946](https://bugs.openjdk.org/browse/JDK-8356946)
> 
> The reasoning for this change is the same as the x86 version's PR:
> 
>> First, we carry the implementation for counter decrements without using them. This is dead code, and can be purged.
>> 
>> Second, we care about overflows for 64-bit for some reason. I think this is a reminiscent of 32-bit x86 support, where we can plausibly have 32-bit counter overflow in a reasonable timeframe. But for 64-bit counter, we need tens of years of constantly bashing the counter to get it to overflow. No other profile counter update code, e.g. in C1, cares about this.
> 
> Additional testing:
> 
> - [x] Linux aarch64 fastdebug tier 1/2/3/4

Chad Rakoczy has updated the pull request incrementally with one additional commit since the last revision:

  Address comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/25512/files
  - new: https://git.openjdk.org/jdk/pull/25512/files/5368815e..0a336523

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25512&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25512&range=00-01

  Stats: 6 lines in 1 file changed: 0 ins; 5 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25512.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25512/head:pull/25512

PR: https://git.openjdk.org/jdk/pull/25512