[jdk17u-dev] RFR: 8309119: [17u/11u] Redo JDK-8297951: C2: Create skeleton predicates for all If nodes in loop predication [v2]

[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 refreshed the contents of this pull request, and previous commits have been removed. The incremental views will show differences compared to the previous content of the PR. The pull request contains one new commit since the last revision:

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

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Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/1497/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/1497/files/238f50e3..f70ae5f1

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1497&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1497&range=00-01

  Stats: 78 lines in 1 file changed: 78 ins; 0 del; 0 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