RFR: 8374195: TestReplaceNarrowPhiWithBottomPhi fails on ppc64 platforms in (fast)debug

Tue Dec 23 16:59:34 UTC 2025

This test makes assumptions about the C2 ideal graph which are not true for PPC64. We need to get tests green also in jdk26 where the new test has landed in the meantime, so simply disabling it for the platform.
Test improvements can be done later if needed.

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Commit messages:
 - 8374195: TestReplaceNarrowPhiWithBottomPhi fails on ppc64 platforms in (fast)debug

Changes: https://git.openjdk.org/jdk/pull/28964/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=28964&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8374195
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/28964.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/28964/head:pull/28964

PR: https://git.openjdk.org/jdk/pull/28964