8269672: C1: Remove unaligned move on all architectures

[y1yang0]

This is a follow up PR for #3917, it's rather a cleanup, no functional change.

As @TheRealMDoerr said

The "unaligned" parameter is unused on all platforms, now. Note that PPC64 and s390 support unaligned accesses, too. I believe it was used by SPARC which has been removed.

Thanks！

---

Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• Change must be properly reviewed

Issue

• JDK-8269672: C1: Remove unaligned move on all architectures

Reviewers

• Tobias Hartmann (@TobiHartmann - Reviewer)

Contributors

• Martin Doerr <mdoerr@openjdk.org>

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.java.net/jdk pull/4662/head:pull/4662
$ git checkout pull/4662

Update a local copy of the PR:
$ git checkout pull/4662
$ git pull https://git.openjdk.java.net/jdk pull/4662/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 4662

View PR using the GUI difftool:
$ git pr show -t 4662

Using diff file

Download this PR as a diff file:
https://git.openjdk.java.net/jdk/pull/4662.diff

[bridgekeeper]

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[openjdk]

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[y1yang0]

/label remove Shenandoah

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/label add hotspot-compiler

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[y1yang0]

/label remove shenandoah

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Webrevs

• 00: Full (80e18fb9)

[openjdk]

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[y1yang0]

/contributor add mdoerr

[openjdk]

@kelthuzadx
Contributor Martin Doerr <mdoerr@openjdk.org> successfully added.

[TobiHartmann]

Looks good to me.

[openjdk]

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

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

8269672: C1: Remove unaligned move on all architectures

Co-authored-by: Martin Doerr <mdoerr@openjdk.org>
Reviewed-by: thartmann

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At the time when this comment was updated there had been 38 new commits pushed to the master branch:

• 371d996: 8269700: source level for IntelliJ JDK project is set incorrectly
• 8a7b380: 8269124: Update java.time to use switch expressions (part II)
• 675a952: 8269821: Remove is-queue-active check in inner loop of write_ref_array_pre_work
• 4da52ea: 8269004: Implement ResizableResourceHashtable
• 390d102: 8269652: Factor out the common code for creating system j.l.Thread objects
• 17f53f2: Merge
• 1c18f91: 8269768: JFR Terminology Refresh
• 6f0e8e7: 8269775: compiler/codegen/ClearArrayTest.java failed with "assert(false) failed: bad AD file"
• c4ea13e: 8269543: The warning for System::setSecurityManager should only appear once for each caller
• 2db9005: 8262017: C2: assert(n != __null) failed: Bad immediate dominator info.
• ... and 28 more: https://git.openjdk.java.net/jdk/compare/06d26208c5604c0c640eff4da94ef814c2ebebf0...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.

[y1yang0]

Thank you, Tobias! I'd like to treat this non-functional change as "trivial" change.

/integrate

[openjdk]

Going to push as commit df0e11b.
Since your change was applied there have been 48 commits pushed to the master branch:

• 2926769: 8267956: C1 code cleanup
• acc3d99: 8268860: Windows-Aarch64 build is failing in GitHub actions
• a18a112: Merge
• 5b8e1a2: 8266595: jdk/jfr/jcmd/TestJcmdDump.java with slowdebug bits fails with AttachNotSupportedException
• e14801c: 8269668: [aarch64] java.library.path not including /usr/lib64
• 97e0e9e: 8268775: Password is being converted to String in AccessibleJPasswordField
• fd4de1e: 8233020: (fs) UnixFileSystemProvider should use StaticProperty.userDir().
• 76783cd: 8269760: idea.sh should not invoke cygpath directly
• 7319896: 8269758: idea.sh doesn't work when there are multiple configurations available.
• 164eff8: 8263389: IGV: Zooming changes the point that is currently centered
• ... and 38 more: https://git.openjdk.java.net/jdk/compare/06d26208c5604c0c640eff4da94ef814c2ebebf0...master

Your commit was automatically rebased without conflicts.

[openjdk]

@kelthuzadx Pushed as commit df0e11b.

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