[jdk17u-dev] RFR: 8290711: assert(false) failed: infinite loop in PhaseIterGVN::optimize [v2]

[Goetz Lindenmaier]

> I had to resolve the first chunk in phaseX.cpp because 8289051: C2: Cleanup PhaseCCP::analyze()  is not in 17.

Goetz Lindenmaier has updated the pull request incrementally with one additional commit since the last revision:

  Add missing test

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

Changes:
  - all: https://git.openjdk.org/jdk17u-dev/pull/761/files
  - new: https://git.openjdk.org/jdk17u-dev/pull/761/files/64f55447..22d51895

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=761&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=761&range=00-01

  Stats: 90 lines in 1 file changed: 90 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/761.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev pull/761/head:pull/761

PR: https://git.openjdk.org/jdk17u-dev/pull/761