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base repository: postgresql-cfbot/postgresql
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  • 2 commits
  • 5 files changed
  • 2 contributors

Commits on Dec 11, 2025

  1. Enable the Microsoft Windows ARM64/MSVC platform 

    Add support for the ARM64 architecture on Windows 11 using MSVC compiler
addressing build issues and implementing proper memory synchronization
semantics for this platform.

* Implement spin_delay() with __isb(_ARM64_BARRIER_SY) intrinsic to emit
  the "ISB SY" instruction which matches the GCC/Clang approach to
  spinloop delay and emperical evidence that it out-scales the YIELD
  instruction in practice.

* Unconditionally choose to use the MSVC supplied intrinsic
  for CRC32 on ARM64.

* Implement the S_UNLOCK() macro using the InterlockedExchange()
  intrinsic.

Author: Greg Burd <greg@burd.me>
Author: Dave Cramer <davecramer@gmail.com>
Discussion: https://postgr.es/m/3c576ad7-d2da-4137-b791-5821da7cc370%40app.fastmail.com
    @davecramer
    davecramer authored and Commitfest Bot committed Dec 11, 2025
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  2. [CF 6243] v8 - Fix ARM64/MSVC atomic memory ordering issues on Win11 … 

    …by adding explicit DMB ​barriers

This branch was automatically generated by a robot using patches from an
email thread registered at:

https://commitfest.postgresql.org/patch/6243

The branch will be overwritten each time a new patch version is posted to
the thread, and also periodically to check for bitrot caused by changes
on the master branch.

Patch(es): https://www.postgresql.org/message-id/f9bbd950-b70d-4881-9ae2-263e4d01e644@app.fastmail.com
Author(s): Dave Cramer, Greg Burd
    Commitfest Bot committed Dec 11, 2025
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