RFR: 8358556: Assert when running with -XX:-UseLibmIntrinsic [v6]

[Mohamed Issa]

> This change fixes unwanted calls to the cbrt and tanh intrinsics on x86 when they are explicitly disabled by flags such as _-XX:-UseLibmIntrinsic_ or _-XX:-InlineIntrinsics_.

Mohamed Issa has updated the pull request incrementally with one additional commit since the last revision:

  Add guard preprocessors to ensure HotSpot Zero JVM builds don't fail

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Changes:
  - all: https://git.openjdk.org/jdk/pull/25680/files
  - new: https://git.openjdk.org/jdk/pull/25680/files/aff9ca09..fa21605f

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=25680&range=05
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=25680&range=04-05

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/25680.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/25680/head:pull/25680

PR: https://git.openjdk.org/jdk/pull/25680