RFR: 8322805: Eliminate -Wparentheses warnings in x86 code [v2]

[Kim Barrett]

> Please review this change to eliminate some -Wparentheses warnings. This
> involved simply adding a few parentheses to make some implicit operator
> precedence explicit.
> 
> Testing: mach5 tier1
> 
> Also ran mach5 tier1 with these changes in conjunction enabling -Wparentheses
> and other changes needed to make that work.

Kim Barrett has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains two additional commits since the last revision:

 - Merge branch 'master' into x86-wparentheses
 - fix -Wparentheses warnings in x86 code

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/17211/files
  - new: https://git.openjdk.org/jdk/pull/17211/files/a6aaba0d..78e5afde

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=17211&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=17211&range=00-01

  Stats: 801 lines in 62 files changed: 530 ins; 40 del; 231 mod
  Patch: https://git.openjdk.org/jdk/pull/17211.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/17211/head:pull/17211

PR: https://git.openjdk.org/jdk/pull/17211