[jdk17u-dev] RFR: 8309119: [17u/11u] Redo JDK-8297951: C2: Create skeleton predicates for all If nodes in loop predication [v3]

[Goetz Lindenmaier]

> …or all If nodes in loop predication
> 
> Redo of above change. 
> The patch of 8308884 applied clean with -R.
> Test passes.
> 
> I'll backport JDK-8307683, too.

Goetz Lindenmaier 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 'openjdk:master' into goetz_8309119
 - 8309119: [17u/11u] Redo JDK-8297951: C2: Create skeleton predicates for all If nodes in loop predication

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/1497/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/1497/files/f70ae5f1..2fc0e13e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1497&range=02
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1497&range=01-02

  Stats: 6167 lines in 148 files changed: 645 ins; 158 del; 5364 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1497.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1497/head:pull/1497

PR: https://git.openjdk.org/jdk17u-dev/pull/1497