8333713: C2 SuperWord: cleanup in vectornode.cpp/hpp

[eme64]

Removed dead code and renamed superword -> auto_vectorization, just like I had done in JDK-8324750.

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Issue

• JDK-8333713: C2 SuperWord: cleanup in vectornode.cpp/hpp (Sub-task - P4)

Reviewers

• Christian Hagedorn (@chhagedorn - Reviewer)
• Vladimir Kozlov (@vnkozlov - Reviewer)

Reviewing

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[openjdk]

@eme64 This change now passes all automated pre-integration checks.

ℹ️ This project also has non-automated pre-integration requirements. Please see the file CONTRIBUTING.md for details.

After integration, the commit message for the final commit will be:

8333713: C2 SuperWord: cleanup in vectornode.cpp/hpp

Reviewed-by: chagedorn, kvn

You can use pull request commands such as /summary, /contributor and /issue to adjust it as needed.

At the time when this comment was updated there had been 41 new commits pushed to the master branch:

• 2a37764: 8333743: Change .jcheck/conf branches property to match valid branches
• 75dc2f8: 8330182: Start of release updates for JDK 24
• 054362a: 8332550: [macos] Voice Over: java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location
• 9b436d0: 8333674: Disable CollectorPolicy.young_min_ergo_vm for PPC64
• 487c477: 8333647: C2 SuperWord: some additional PopulateIndex tests
• d02cb74: 8333270: HandlersOnComplexResetUpdate and HandlersOnComplexUpdate tests fail with "Unexpected reference" if timeoutFactor is less than 1/3
• 02f2404: 8333560: -Xlint:restricted does not work with --release
• 606df44: 8332670: C1 clone intrinsic needs memory barriers
• 33fd6ae: 8333622: ubsan: relocInfo_x86.cpp:101:56: runtime error: pointer index expression with base (-1) overflowed
• 8de5d20: 8332865: ubsan: os::attempt_reserve_memory_between reports overflow
• ... and 31 more: https://git.openjdk.org/jdk/compare/3cbdf8d4d4604c92d3760ba4e069216564306bcf...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid this automatic rebasing, please check the documentation for the /integrate command for further details.

➡️ To integrate this PR with the above commit message to the master branch, type /integrate in a new comment.

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[chhagedorn]

Looks good and trivial.

[mlbridge]

Webrevs

• 00: Full (0f592d7f)

[vnkozlov]

Good.

[eme64]

Thanks @vnkozlov @chhagedorn for the reviews!
/integrate

[openjdk]

Going to push as commit e5383d7.
Since your change was applied there have been 44 commits pushed to the master branch:

• 944aeb8: 8325155: C2 SuperWord: remove alignment boundaries
• d8af589: 8026127: Deflater/Inflater documentation incomplete/misleading
• 6238bc8: 8333456: CompactNumberFormat integer parsing fails when string has no suffix
• 2a37764: 8333743: Change .jcheck/conf branches property to match valid branches
• 75dc2f8: 8330182: Start of release updates for JDK 24
• 054362a: 8332550: [macos] Voice Over: java.awt.IllegalComponentStateException: component must be showing on the screen to determine its location
• 9b436d0: 8333674: Disable CollectorPolicy.young_min_ergo_vm for PPC64
• 487c477: 8333647: C2 SuperWord: some additional PopulateIndex tests
• d02cb74: 8333270: HandlersOnComplexResetUpdate and HandlersOnComplexUpdate tests fail with "Unexpected reference" if timeoutFactor is less than 1/3
• 02f2404: 8333560: -Xlint:restricted does not work with --release
• ... and 34 more: https://git.openjdk.org/jdk/compare/3cbdf8d4d4604c92d3760ba4e069216564306bcf...master

Your commit was automatically rebased without conflicts.

[openjdk]

@eme64 Pushed as commit e5383d7.

💡 You may see a message that your pull request was closed with unmerged commits. This can be safely ignored.