8252898: remove bulk registration of JFR CompilerPhaseType names

[dougxc]

The changes made in JDK-8193210 support only bulk registration of compiler phase names with JFR. However, Graal only registers compiler phase names upon first execution of the phase since the set of phases is not known during VM initialization. This means registration of a Graal phase name needs to do unnecessary work, wrapping a single name into an array to conform to the bulk registration API. This pull request updates the registration API to be in terms of a registering a single phase name.

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Progress

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

Issue

• JDK-8252898: remove bulk registration of JFR CompilerPhaseType names

Reviewers

• Vladimir Kozlov (@vnkozlov - Reviewer)
• Jamsheed Mohammed C M (@jamsheedcm - Committer)

Download

$ git fetch https://git.openjdk.java.net/jdk pull/77/head:pull/77
$ git checkout pull/77

[bridgekeeper]

👋 Welcome back dnsimon! 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]

@dougxc The following label will be automatically applied to this pull request: hotspot.

When this pull request is ready to be reviewed, an RFR email will be sent to the corresponding mailing list. If you would like to change these labels, use the /label (add|remove) "label" command.

[mlbridge]

Webrevs

• 01: Full - Incremental (740c589)
• 00: Full (662f9854d7c2978e750bfe6608889401b2cabbfe)

[dougxc]

/cc hotspot-compiler

[openjdk]

@dougxc
The hotspot-compiler label was successfully added.

[dougxc]

@jamsheedcm could you please have a look at this change.

[vnkozlov]

Looks good.
I ran jfr/event/compiler tests with changes and they passed except TestCompilerInlining.java which failed before changes.

[openjdk]

@dougxc This change now passes all automated pre-integration checks. In addition to the automated checks, the change must also fulfill all project specific requirements

After integration, the commit message will be:

8252898: remove bulk registration of JFR CompilerPhaseType names

Reviewed-by: kvn, jcm

• If you would like to add a summary, use the /summary command.
• To credit additional contributors, use the /contributor command.
• To add additional solved issues, use the /issue command.

Since the source branch of this PR was last updated there have been 45 commits pushed to the master branch:

• 779d2c3: 8253084: Zero VM is broken after JDK-8252689
• 07da3a1: 8253030: ZGC: Change ZMarkCompleteTimeout unit to microseconds
• f978f6f: 8252689: Classes are loaded from jrt:/java.base even when CDS is used
• c5e63b6: 8248186: Move CDS C++ vtable code to cppVtables.cpp
• 03a4df0: 8244778: Archive full module graph in CDS
• 998ce78: 8252543: [JVMCI] Libgraal can deadlock in blocking compilation mode
• b1b0f0b: 8253066: typo in Stream.mapMulti
• 306b166: 8253033: CheckUnhandledOops check fails in ThreadSnapshot::initialize…
• 5c0d985: 8253060: remove test/hotspot/jtreg/test_env.sh
• 9525186: 8253031: git jcheck complains about invalid tags in jdk repo after fix for JDK-8252844
• ... and 35 more: https://git.openjdk.java.net/jdk/compare/704f784c88ee282837c980948167e741e7227f27...master

As there are no conflicts, your changes will automatically be rebased on top of these commits when integrating. If you prefer to avoid automatic rebasing, please merge master into your branch, and then specify the current head hash when integrating, like this: /integrate 779d2c34ae8ac26a3ddb637c2c6d830bded0cd5d.

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

[vnkozlov]

I still want @jamsheedcm to review it too.

[dougxc]

/integrate

[openjdk]

@dougxc Since your change was applied there have been 45 commits pushed to the master branch:

• 779d2c3: 8253084: Zero VM is broken after JDK-8252689
• 07da3a1: 8253030: ZGC: Change ZMarkCompleteTimeout unit to microseconds
• f978f6f: 8252689: Classes are loaded from jrt:/java.base even when CDS is used
• c5e63b6: 8248186: Move CDS C++ vtable code to cppVtables.cpp
• 03a4df0: 8244778: Archive full module graph in CDS
• 998ce78: 8252543: [JVMCI] Libgraal can deadlock in blocking compilation mode
• b1b0f0b: 8253066: typo in Stream.mapMulti
• 306b166: 8253033: CheckUnhandledOops check fails in ThreadSnapshot::initialize…
• 5c0d985: 8253060: remove test/hotspot/jtreg/test_env.sh
• 9525186: 8253031: git jcheck complains about invalid tags in jdk repo after fix for JDK-8252844
• ... and 35 more: https://git.openjdk.java.net/jdk/compare/704f784c88ee282837c980948167e741e7227f27...master

Your commit was automatically rebased without conflicts.

Pushed as commit b05290a.

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