[jdk17u-dev] RFR: 8303154: Investigate and improve instruction cache flushing during compilation

[Goetz Lindenmaier]

I backport this for parity with 17.0.9-oracle.

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Commit messages:
 - Backport b7945bc9e5db5761f17a9e56246424fbcab21627

Changes: https://git.openjdk.org/jdk17u-dev/pull/1559/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk17u-dev&pr=1559&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8303154
  Stats: 11 lines in 7 files changed: 0 ins; 11 del; 0 mod
  Patch: https://git.openjdk.org/jdk17u-dev/pull/1559.diff
  Fetch: git fetch https://git.openjdk.org/jdk17u-dev.git pull/1559/head:pull/1559

PR: https://git.openjdk.org/jdk17u-dev/pull/1559