RFR: 8365053: Refresh hotspot precompiled.hpp with headers based on current frequency [v16]

[Francesco Andreuzzi]

On Tue, 26 Aug 2025 16:16:25 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

> The important thing is to record how this was created. But if you can spare the time to actually write it as a script, that would be the best. A runnable script is always better than a step-by-step instruction. That would allow us to rerun this with very little cost at a higher frequency (perhaps once a year, or once per release or so) to automatically keep Hotspot build time optimized.

Added in e5029bfa1c311eee88a16ed02dcdf2c816854cc7, it contains all the steps I listed above

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PR Comment: https://git.openjdk.org/jdk/pull/26681#issuecomment-3225803676