8334717: Add JVMCI support for APX EGPRs

[mur47x111]

This PR marks extra general purpose registers introduced by Intel APX as Graal allocatables. It also drops AMD64/AArch64/RISCV64.flags and RegisterArray

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Progress

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Issue

• JDK-8334717: Add JVMCI support for APX EGPRs (Sub-task - P4)

Reviewers

• Doug Simon (@dougxc - Reviewer)

Reviewing

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[bridgekeeper]

👋 Welcome back yzheng! 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]

@mur47x111 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:

8334717: Add JVMCI support for APX EGPRs

Reviewed-by: dnsimon

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 39 new commits pushed to the master branch:

• a0cdf36: 8357224: Avoid redundant WeakHashMap.get in Toolkit.removeAWTEventListener
• 9119451: 8355756: G1HeapSizingPolicy::full_collection_resize_amount should consider allocation size
• 50a7755: 8347530: Improve error message with invalid permits clauses
• ... and 36 more: https://git.openjdk.org/jdk/compare/effe40a24c29dc507eea5efef7b0736a33bc34a7...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.

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

[openjdk]

@mur47x111 The following labels will be automatically applied to this pull request:

• graal
• hotspot-compiler

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[mur47x111]

keep alive

[dougxc]

We should remove raw arrays as much as possible in JVMCI and replace them with immutable Lists:

     * @return an immutable list whose length is the max register number in {@code registers} plus 1. An
     *         element at index i holds the attributes of the register whose number is i.
     */
    public static List<RegisterAttributes[] createMap(RegisterConfig registerConfig, List<Register> registers) {

[mur47x111]

I have audited all the .clone() on array objects and changed as much as possible. Let me know if there is still some opportunity

[dougxc]

Looks good - thanks!

[mlbridge]

Webrevs

• 01: Full - Incremental (37e4d2a4)
• 00: Full (aabb8996)

[dougxc]

LGTM

[mur47x111]

thanks for the review!
/integrate

[openjdk]

Going to push as commit 735c789.
Since your change was applied there have been 39 commits pushed to the master branch:

• a0cdf36: 8357224: Avoid redundant WeakHashMap.get in Toolkit.removeAWTEventListener
• 9119451: 8355756: G1HeapSizingPolicy::full_collection_resize_amount should consider allocation size
• 50a7755: 8347530: Improve error message with invalid permits clauses
• ... and 36 more: https://git.openjdk.org/jdk/compare/effe40a24c29dc507eea5efef7b0736a33bc34a7...master

Your commit was automatically rebased without conflicts.

[openjdk]

@mur47x111 Pushed as commit 735c789.

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