8264972: Unused TypeFunc declared in OptoRuntime

[y1yang0]

When investigating some C2 related stuff, I noticed that some TypeFunc are declared in OptoRuntime since JDK6:

// leaf on stack replacement interpreter accessor types
static const TypeFunc* fetch_int_Type();
static const TypeFunc* fetch_long_Type();
static const TypeFunc* fetch_float_Type();
static const TypeFunc* fetch_double_Type();
static const TypeFunc* fetch_oop_Type();
static const TypeFunc* fetch_monitor_Type();

They are neither used nor implemented. It looks like we can remove them(I'm curious about their stories/history.)

---

Progress

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Issue

• JDK-8264972: Unused TypeFunc declared in OptoRuntime

Reviewers

• Tobias Hartmann (@TobiHartmann - Reviewer)
• Aleksey Shipilev (@shipilev - Reviewer)

Reviewing

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Update a local copy of the PR:
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$ git pull https://git.openjdk.java.net/jdk pull/3429/head

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https://git.openjdk.java.net/jdk/pull/3429.diff

[bridgekeeper]

👋 Welcome back yyang! 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]

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[mlbridge]

Webrevs

• 00: Full (8f3e8a42)

[TobiHartmann]

Good catch. Looks good and trivial to me.

[y1yang0]

Thank you Tobias. It's trivial indeed.

[openjdk]

@kelthuzadx 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:

8264972: Unused TypeFunc declared in OptoRuntime

Reviewed-by: thartmann, shade

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 20 new commits pushed to the master branch:

• 440c34a: 8264644: Add PrintClassLoaderDataGraphAtExit to print the detailed CLD graph
• b1ebf82: 8264358: Don't create invalid oop in method handle tracing
• 627ad9f: 8262328: Templatize JVMFlag boilerplate access methods
• c15680e: 8264868: Reduce inclusion of registerMap.hpp and register.hpp
• 5784f6b: 8264948: Check for TLS extensions total length
• 42f4d70: 8264649: runtime/InternalApi/ThreadCpuTimesDeadlock.java crash in fastdebug C2 with -XX:-UseTLAB
• 76bd313: 8264872: Dependencies: Migrate to PerfData counters
• 07c8ff4: 8264871: Dependencies: Miscellaneous cleanups in dependencies.cpp
• 863feab: 8005295: Use mandated information for printing of repeating annotations
• f26cd2a: 8264997: Remove SystemDictionary::cache_get
• ... and 10 more: https://git.openjdk.java.net/jdk/compare/a45733f8400509f9e8438ff3e7873f1939f7abb2...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.

As you do not have Committer status in this project an existing Committer must agree to sponsor your change. Possible candidates are the reviewers of this PR (@TobiHartmann, @shipilev) but any other Committer may sponsor as well.

➡️ To flag this PR as ready for integration with the above commit message, type /integrate in a new comment. (Afterwards, your sponsor types /sponsor in a new comment to perform the integration).

[y1yang0]

/integrate

[openjdk]

@kelthuzadx
Your change (at version 8f3e8a4) is now ready to be sponsored by a Committer.

[shipilev]

This apparently predates OpenJDK history. Looks fine.

[shipilev]

/sponsor

[openjdk]

@shipilev @kelthuzadx Since your change was applied there have been 20 commits pushed to the master branch:

• 440c34a: 8264644: Add PrintClassLoaderDataGraphAtExit to print the detailed CLD graph
• b1ebf82: 8264358: Don't create invalid oop in method handle tracing
• 627ad9f: 8262328: Templatize JVMFlag boilerplate access methods
• c15680e: 8264868: Reduce inclusion of registerMap.hpp and register.hpp
• 5784f6b: 8264948: Check for TLS extensions total length
• 42f4d70: 8264649: runtime/InternalApi/ThreadCpuTimesDeadlock.java crash in fastdebug C2 with -XX:-UseTLAB
• 76bd313: 8264872: Dependencies: Migrate to PerfData counters
• 07c8ff4: 8264871: Dependencies: Miscellaneous cleanups in dependencies.cpp
• 863feab: 8005295: Use mandated information for printing of repeating annotations
• f26cd2a: 8264997: Remove SystemDictionary::cache_get
• ... and 10 more: https://git.openjdk.java.net/jdk/compare/a45733f8400509f9e8438ff3e7873f1939f7abb2...master

Your commit was automatically rebased without conflicts.

Pushed as commit ecef1fc.

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

[y1yang0]

This apparently predates OpenJDK history. Looks fine.

Yes, it seems an ancient code. I googled it but got nothing except source codes in OpenJDK.