compiler: Fix buffering in presence of written HALO regions

[FabioLuporini]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 89.28571% with 27 lines in your changes missing coverage. Please review.
✅ Project coverage is 83.90%. Comparing base (caf6fc9) to head (327c61f).

Files with missing lines	Patch %	Lines
tests/test_mpi.py	59.01%	25 Missing ⚠️
devito/passes/clusters/buffering.py	95.12%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3030      +/-   ##
==========================================
+ Coverage   83.87%   83.90%   +0.03%     
==========================================
  Files         258      258              
  Lines       55356    55605     +249     
  Branches     4730     4765      +35     
==========================================
+ Hits        46430    46658     +228     
- Misses       8111     8131      +20     
- Partials      815      816       +1     

Flag	Coverage Δ
pytest-gpu-aomp-amdgpuX	68.65% <53.26%> (-0.02%)	⬇️
pytest-gpu-gcc-	78.56% <88.49%> (+0.04%)	⬆️
pytest-gpu-icx-	78.49% <88.49%> (+0.03%)	⬆️
pytest-gpu-nvc-nvidiaX	69.17% <53.26%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[mloubout]

why not just call memcpy in that case since it just copies the whole buffer (the langbb['memcpy'])

[FabioLuporini]

padding