8355276: Sort C2 includes

[mhaessig]

This PR sorts the includes in hotspot/share/opto using test/hotspot/jtreg/sources/SortIncludes.java and enforces sorted includes for C2 sources in sources/TestIncludesAreSorted.java.

Testing:

• Github Actions
• tier1,tier2 plus Oracle internal testing on Oracle supported platforms

---

Progress

• Change must be properly reviewed (1 review required, with at least 1 Reviewer)
• Change must not contain extraneous whitespace
• Commit message must refer to an issue

Issue

• JDK-8355276: Sort C2 includes (Enhancement - P5)

Reviewers

• Vladimir Kozlov (@vnkozlov - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/25910/head:pull/25910
$ git checkout pull/25910

Update a local copy of the PR:
$ git checkout pull/25910
$ git pull https://git.openjdk.org/jdk.git pull/25910/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 25910

View PR using the GUI difftool:
$ git pr show -t 25910

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/25910.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back mhaessig! A progress list of the required criteria for merging this PR into master will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

@mhaessig 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:

8355276: Sort C2 includes

Reviewed-by: 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 4 new commits pushed to the master branch:

• c6ab63d: 8359735: [Ubuntu 25.10] java/lang/ProcessBuilder/Basic.java, java/lang/ProcessHandle/InfoTest.java fail due to rust-coreutils
• ff54a64: 8360049: CodeInvalidationReasonTest.java fails with ZGC on AArch64
• c11f36e: 8356708: C2: loop strip mining expansion doesn't take sunk stores into account
• ... and 1 more: https://git.openjdk.org/jdk/compare/33970629ac63eea6009fca7a34c8f333f1a60a37...master

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[openjdk]

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• graal
• hotspot-compiler

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[mlbridge]

Webrevs

• 00: Full (83e2a186)

[shipilev]

Oh, great, Windows GHA is apparently failing out with MSVC 14.43 and new runner image. I guess there is no choice but to switch to 14.44 now :) #25912. Wait until GHA is stable again, so to check that MSVC accepts the include order correctly?

[mhaessig]

On our internal testing, Windows built and tested fine. I just kicked GHA to rerun the failed Windows builds, which fixed the problem for other runs yesterday.

[mhaessig]

Everything passed now.

[vnkozlov]

Looks good.