8339366: [jittester] Make it possible to generate tests without execution

[lepestock]

This PR:

1. Extracts IR tree generation from execution (left in the Automatic) into a dedicated class IRTreeGenerator;
2. Introduces a generation result record (named IRTreeGenerator.Test). The record contains main and private classes along with the random seed used for their generation;
3. Creates CLI-wrapper classes for Java and ByteCode generators to allow generation-only execution;
4. Add a repeating option to the configuration - to make it possible to specify several main class names.

Sample usage:

java -cp build/classes --add-opens java.base/java.util=ALL-UNNAMED \
      jdk.test.lib.jittester.JavaCodeGenerator \
      -k Test_0 -k Test_1 -k Test_10

---

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-8339366: [jittester] Make it possible to generate tests without execution (Enhancement - P4)

Reviewers

• Leonid Mesnik (@lmesnik - Reviewer)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk.git pull/20806/head:pull/20806
$ git checkout pull/20806

Update a local copy of the PR:
$ git checkout pull/20806
$ git pull https://git.openjdk.org/jdk.git pull/20806/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 20806

View PR using the GUI difftool:
$ git pr show -t 20806

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk/pull/20806.diff

Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back enikitin! 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]

@lepestock 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:

8339366: [jittester] Make it possible to generate tests without execution

Reviewed-by: lmesnik

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 174 new commits pushed to the master branch:

• 6b5958d: 8339696: Clarify modeling scope of javax.lang.model.element
• 77468c2: 8339575: DumpingWithJavaAgent.java failed with missing expected output
• 86a2f9c: 8339644: Improve parsing of Day/Month in tzdata rules
• a9bb043: 8339683: Simplify class data generation in InvokerBytecodeGenerator
• 7c0f013: 8339488: Extended NPE message doesn't handle CONSTANT_Dynamic
• d53e405: 8339742: Refactor ClassFileImpl to allow loading Option classes lazily
• c54fc08: 8338587: Internal XOF Methods for SHAKE128 and SHAKE256
• 88cccc1: 8339631: Fix block @jls and @JVMS tags
• 615a24f: 8338902: CDS flags are reported with wrong flag category
• 347d572: 8339387: ZGC: Synchronize medium page allocation
• ... and 164 more: https://git.openjdk.org/jdk/compare/23dc3b02468836f4c9b4303f2c7c0a7305461ce1...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 (@lmesnik) 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).

[openjdk]

@lepestock The following label will be automatically applied to this pull request:

• hotspot-compiler

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 pull request command.

[mlbridge]

Webrevs

• 00: Full (4d66bfdd)

[lepestock]

/integrate

[openjdk]

@lepestock
Your change (at version 4d66bfd) is now ready to be sponsored by a Committer.

[lmesnik]

/sponsor

[openjdk]

Going to push as commit 559fc71.
Since your change was applied there have been 174 commits pushed to the master branch:

• 6b5958d: 8339696: Clarify modeling scope of javax.lang.model.element
• 77468c2: 8339575: DumpingWithJavaAgent.java failed with missing expected output
• 86a2f9c: 8339644: Improve parsing of Day/Month in tzdata rules
• a9bb043: 8339683: Simplify class data generation in InvokerBytecodeGenerator
• 7c0f013: 8339488: Extended NPE message doesn't handle CONSTANT_Dynamic
• d53e405: 8339742: Refactor ClassFileImpl to allow loading Option classes lazily
• c54fc08: 8338587: Internal XOF Methods for SHAKE128 and SHAKE256
• 88cccc1: 8339631: Fix block @jls and @JVMS tags
• 615a24f: 8338902: CDS flags are reported with wrong flag category
• 347d572: 8339387: ZGC: Synchronize medium page allocation
• ... and 164 more: https://git.openjdk.org/jdk/compare/23dc3b02468836f4c9b4303f2c7c0a7305461ce1...master

Your commit was automatically rebased without conflicts.

[openjdk]

@lmesnik @lepestock Pushed as commit 559fc71.

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