[jdk11u-dev] RFR: 8272720: Fix the implementation of loop unrolling heuristic with LoopPercentProfileLimit

[Jie Fu]

8272720: Fix the implementation of loop unrolling heuristic with LoopPercentProfileLimit

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Commit messages:
 - Backport 1ea437a4b87381b558cf8157ac52fc03e37ac507

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/588/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=588&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8272720
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/588.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/588/head:pull/588

PR: https://git.openjdk.java.net/jdk11u-dev/pull/588