8359412: Template-Framework Library: Operations and Expressions

[rm-gh-8]

Backporting JDK-8359412: Template-Framework Library: Operations and Expressions.

This PR extends the compiler test template framework library with Expression and Operations classes that model composable Java expressions over primitive types, enabling fuzzing of IGVN optimizations (and future vectorization) by generating random nested expressions with constrained inputs and verified outputs including TypeInt/TypeLong range and KnownBits checking.

For parity with Oracle JDK.

It is part of a series of dependent PRs for JDK 25, related to the following list of ordered issues:

8358772: Template-Framework Library: Primitive Types
8358600: Template-Framework Library: Template for TestFramework test class
8359412: Template-Framework Library: Operations and Expressions
8367531: Template Framework: use scopes and tokens instead of misbehaving immediate-return-queries
8370489: Some compiler tests miss the @key randomness

Ran related tests on linux-x64, linux-aarch64, macos-aarch64 and windows-x64:

make test TEST=test/hotspot/jtreg/testlibrary_tests/template_framework
make test TEST=test/hotspot/jtreg/compiler

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Progress

• Change must not contain extraneous whitespace
• Commit message must refer to an issue
• JDK-8359412 needs maintainer approval

Integration blocker

 ⚠️ Dependency #384 must be integrated first

Issue

• JDK-8359412: Template-Framework Library: Operations and Expressions (Sub-task - P4)

Reviewing

Using git

Checkout this PR locally:
$ git fetch https://git.openjdk.org/jdk25u-dev.git pull/386/head:pull/386
$ git checkout pull/386

Update a local copy of the PR:
$ git checkout pull/386
$ git pull https://git.openjdk.org/jdk25u-dev.git pull/386/head

Using Skara CLI tools

Checkout this PR locally:
$ git pr checkout 386

View PR using the GUI difftool:
$ git pr show -t 386

Using diff file

Download this PR as a diff file:
https://git.openjdk.org/jdk25u-dev/pull/386.diff

Using Webrev

Link to Webrev Comment

[bridgekeeper]

👋 Welcome back rm-gh-8! A progress list of the required criteria for merging this PR into pr/384 will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

[openjdk]

❗ This change is not yet ready to be integrated.
See the Progress checklist in the description for automated requirements.

[openjdk]

This backport pull request has now been updated with issue from the original commit.

[mlbridge]

Webrevs

• 00: Full (b5008a48)