RFR: 8334083: C2 SuperWord: TestCompatibleUseDefTypeSize.java fails with -XX:+AlignVector after JDK-8325155

Thu Jun 20 10:54:44 UTC 2024

This is a small test-bug fix.

In https://bugs.openjdk.org/browse/JDK-8325155 / https://github.com/openjdk/jdk/pull/18822, I added a test, but never ran it with `-XX:+AlignVector` - since that is not a flag we use at Oracle, and therefore do not regularly test.

I had to adjust the IR rule accordingly.

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Commit messages:
 - JDK-8334083

Changes: https://git.openjdk.org/jdk/pull/19801/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=19801&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8334083
  Stats: 2 lines in 1 file changed: 2 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/19801.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/19801/head:pull/19801

PR: https://git.openjdk.org/jdk/pull/19801