[lworld] RFR: 8373346: [lworld] Link error on x64 with minimal build

[Frederic Parain]

On Tue, 9 Dec 2025 12:22:11 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

> Minimal builds on x86 fail because some new functions have been defined inside a COMPILER2_OR_JVMCI block. I've moved the code so that the three `clear_mem` functions are kept together and alone in their COMPILER2_OR_JVMCI block.

Marked as reviewed by fparain (Committer).

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PR Review: https://git.openjdk.org/valhalla/pull/1780#pullrequestreview-3557734360