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@jatin-bhateja jatin-bhateja commented Oct 21, 2025

Merge from lworld in lworld+vector branch.

Apart from the usual merge conflict resolution, the patch also contains bug fixes for some special handling around multifields.
To segregate the code changes and maintain the history[1][2][3][4][5], these bug fixes were initially checked into a temporary private merge branch and are now part of the merge.

Validation: Status

  • Vector API JTREG tests
    • Default options:
    • With -XX:+DeoptimizeALot
    • With -XX:-UseNonAtomicValueFlattening
  • Valhalla JTREG tests

[1] Special copy constructor used for initializing base and synthetic multifields
jatin-bhateja@0fe3153
[2] Fix ciField population for multifields
jatin-bhateja@4a26aff
[3] Multifield handling during type domain buildup
jatin-bhateja@74ca024
[4] prevent store forwarding across CPU memory barrier
jatin-bhateja@cfc71ac
[5] Fix to accommodate additional padding during offset computation of multifields
jatin-bhateja@75ec629


Progress

  • Change must not contain extraneous whitespace

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Checkout this PR locally:
$ git fetch https://git.openjdk.org/valhalla.git pull/1688/head:pull/1688
$ git checkout pull/1688

Update a local copy of the PR:
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$ git pull https://git.openjdk.org/valhalla.git pull/1688/head

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Checkout this PR locally:
$ git pr checkout 1688

View PR using the GUI difftool:
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Download this PR as a diff file:
https://git.openjdk.org/valhalla/pull/1688.diff

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👋 Welcome back jbhateja! A progress list of the required criteria for merging this PR into lworld+vector will be added to the body of your pull request. There are additional pull request commands available for use with this pull request.

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

@jatin-bhateja jatin-bhateja changed the title Merge lworld2 Merge lworld Oct 21, 2025
mrserb and others added 27 commits October 26, 2025 06:04
Reviewed-by: ayang, iwalulya, fandreuzzi
Merge jdk-26+20
Merge jdk-26+21
… since jdk-22+8

Reviewed-by: phubner, fparain
… and idom lazy updating/forwarding of ctrl and idom via dead ctrl nodes

Reviewed-by: chagedorn, thartmann
Vicente Romero and others added 30 commits November 16, 2025 21:02
…ts when comparing directory structure

Reviewed-by: rriggs, liach
Reviewed-by: rriggs, liach, fparain
…y available if it is exact

Reviewed-by: thartmann
Merge jdk-26+23
Reviewed-by: phubner, rriggs
…xpected IllegalArgumentException

Reviewed-by: liach
Co-authored-by: Frederic Parain <[email protected]>
Reviewed-by: coleenp, thartmann
…': conversion from 'size_t' to 'int'

Reviewed-by: thartmann
…e the extension space

Reviewed-by: mhaessig, thartmann
…va fails with segfault in C1 compiled code on aarch64

Reviewed-by: thartmann
…mentWithGCBarrierTests.java fails with --enable-preview

Reviewed-by: thartmann, chagedorn
…ment the offset when iterating over segments

Reviewed-by: liach, rriggs
…th -XX:+UseAtomicValueFlattening

Reviewed-by: liach
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