RFR: 8253923: C2 doesn't always run loop opts for compilations that include loops

Mon Oct 5 06:54:45 UTC 2020

8253923: C2 doesn't always run loop opts for compilations that include loops

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Commit messages:
 - fix detection of compilations with loops

Changes: https://git.openjdk.java.net/jdk/pull/478/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=478&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8253923
  Stats: 81 lines in 9 files changed: 75 ins; 2 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/478.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/478/head:pull/478

PR: https://git.openjdk.java.net/jdk/pull/478