8353735: [JVMCI] Allow specifying storage kind of the callee save register

[mur47x111]

Windows x64 ABI considers the upper portions of YMM0-YMM15 and ZMM0-ZMM15 volatile, that is, destroyed on function calls. This PR allows RegisterConfig implementations to refine the storage kind of callee save register, such that JVMCI compiler can exploit this information to avoid saving full width of these registers.

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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-8353735: [JVMCI] Allow specifying storage kind of the callee save register (New Feature - P4)

Reviewers

• Doug Simon (@dougxc - Reviewer)
• Cesar Soares Lucas (@JohnTortugo - Committer) Review applies to 339b72ef

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:

8353735: [JVMCI] Allow specifying storage kind of the callee save register

Reviewed-by: dnsimon, cslucas

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At the time when this comment was updated there had been 1 new commit pushed to the master branch:

• 2ea629f: 8353440: Disable FTP fallback for non-local file URLs by default

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[openjdk]

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

• graal
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[mlbridge]

Webrevs

• 02: Full - Incremental (bc900518)
• 01: Full - Incremental (fcdfd10d)
• 00: Full (339b72ef)

[JohnTortugo]

LGTM

[bridgekeeper]

@mur47x111 This pull request has been inactive for more than 4 weeks and will be automatically closed if another 4 weeks passes without any activity. To avoid this, simply add a new comment to the pull request. Feel free to ask for assistance if you need help with progressing this pull request towards integration!

[dougxc]

Still good.

[mur47x111]

Tier1-3 passed. Thanks for the review!
/integrate

[openjdk]

Going to push as commit 74e981e.
Since your change was applied there have been 17 commits pushed to the master branch:

• c88f94c: 8356394: Remove USE_LIBRARY_BASED_TLS_ONLY macro
• 591e71e: 8354890: AOT-initialize j.l.i.MethodHandleImpl and inner classes
• 53ad4b2: 8355364: [REDO] Missing REX2 prefix accounting in ZGC barriers leads to incorrect encoding
• ... and 14 more: https://git.openjdk.org/jdk/compare/57297e60de92b9878fb3926109da3e0058a506ae...master

Your commit was automatically rebased without conflicts.

[openjdk]

@mur47x111 Pushed as commit 74e981e.

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