[jdk17u-dev] RFR: 8303511: C2: assert(get_ctrl(n) == cle_out) during unrolling

Fri Apr 28 11:00:26 UTC 2023

I backport this for parity with 17.0.8-oracle.

I had to resolve loopopts.cpp because formatting has
been fixed in head.

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Commit messages:
 - Backport 3f2d929dc3336b301e7e5dceb899d59451645828

Changes: https://git.openjdk.org/jdk17u-dev/pull/1306/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1306&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303511
  Stats: 84 lines in 2 files changed: 82 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1306.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1306/head:pull/1306

PR: https://git.openjdk.org/jdk17u-dev/pull/1306