The attachment "0001-JIT-Add-missing-STORE-LOAD-_ACC-to-
CreateCallContext.patch" seems to be a patch.  If it isn't, please
remove the "patch" flag from the attachment, remove the "patch" tag, and
if you are a member of the ~ubuntu-reviewers, unsubscribe the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issues please contact him.]

** Tags added: patch

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src in Ubuntu.
https://bugs.launchpad.net/bugs/2111216

Title:
  Qt V4 JIT engine generates bad JIT code

Status in qtdeclarative-opensource-src package in Ubuntu:
  New

Bug description:
  We're encountering a critical issue in Qt 5.15.13 as shipped in Ubuntu
  24.04 (Noble). The Qt V4 JIT engine occasionally generates invalid
  machine code, resulting in crashes at runtime.

  This issue is tracked upstream as QTBUG-111935 [0], and was fixed in
  Qt 5.15.14.

  Symptoms:
      * Application crashes with segmentation faults or illegal instruction 
errors when executing certain JavaScript in QML (GC).
      * The issue appears to stem from bad register allocation or incorrect 
code paths during JIT compilation.

  Affected Package:
  qtdeclarative-opensource-src version 5.15.13 in Ubuntu Noble

  Upstream Fix:

  Commit that resolves the issue:

  qt/qtdeclarative@3bd18f4 [1] or attached patch
      JIT: Add missing {STORE|LOAD}_ACC() to CreateCallContext

  Would it be possible to Cherry-pick the above fix into the current Qt
  5.15.13 package in Noble?

  I’m only able to apply a downstream patch for now, but would prefer a
  shared fix in the official archive if feasible.

  Thanks for considering this!

  [0] https://bugreports.qt.io/browse/QTBUG-111935
  [1] 
https://github.com/qt/qtdeclarative/commit/3bd18f41cfb0f3da65eecf216e49a9bb6bda71a6

  — Marius

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