[lworld] RFR: 8295152: [lworld] Various C2 compiler issues revealed by stress testing

Wed Oct 12 12:51:08 UTC 2022

C2 stress testing via aggressive combinations of flags revealed several issues that are fixed by this patch. Expect for one extremely intermittent issue that I'm going to investigate next, the entire (internal) stress job definition now finally passes!

Thanks,
Tobias

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Commit messages:
 - 8295152: [lworld] Various C2 compiler issues revealed by stress testing

Changes: https://git.openjdk.org/valhalla/pull/789/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=789&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8295152
  Stats: 110 lines in 14 files changed: 54 ins; 16 del; 40 mod
  Patch: https://git.openjdk.org/valhalla/pull/789.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/789/head:pull/789

PR: https://git.openjdk.org/valhalla/pull/789