[jdk17u-dev] RFR: 8296389: C2: PhaseCFG::convert_NeverBranch_to_Goto must handle both orders of successors [v4]

[Goetz Lindenmaier]

> I backport this for parity with 17.0.7-oracle.
> 
> I added nique_ctrl_out_or_null() to workaround 8281732
> missing in 17 in node.hpp
> I include 8298568 to not break the build.

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 six additional commits since the last revision:

 - Merge branch 'master' into goetz_backport_8296389
 - Add forgotten test
 - Backport 173778e2fee58e47d35197b78eb23f46154b5b2b
 - 8281732 missing in 17
 - Backport fabda246960cfdfff13c5a87de53d97169248172
 - Backport d562d3fcbe22a0443037c5b447e1a41401275814

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/1059/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/1059/files/17975842..07e6018e

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1059&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1059&range=02-03

  Stats: 2463 lines in 39 files changed: 1994 ins; 169 del; 300 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1059.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/1059/head:pull/1059

PR: https://git.openjdk.org/jdk17u-dev/pull/1059