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{
  "commit": "c8f4f268bb61537e78a73600ebc7d9837ec29411",
  "tree": "617b666c46701de57f3e86fe6cebf6a021cea778",
  "parents": [
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  "author": {
    "name": "Protobuf Team Bot",
    "email": "protobuf-github-bot@google.com",
    "time": "Sat Aug 22 11:21:29 2026 -0700"
  },
  "committer": {
    "name": "Copybara-Service",
    "email": "copybara-worker@google.com",
    "time": "Sun Aug 23 16:41:38 2026 -0700"
  },
  "message": "Extend Message Layout Engine \u0026 Padding Optimizer to support 2-byte alignment\n\nThis change extends the Protobuf C++ message layout engine and padding optimizer:\n- Added aligned_to_2 partition array to FieldAlignmentGroups in message_layout_helper.h/cc.\n- Extended the alignment consolidation pipeline to follow a 1 -\u003e 2 -\u003e 4 -\u003e 8 byte hierarchy, packing pairs of 1-byte fields into 2-byte blocks and pairs of 2-byte fields into 4-byte blocks.\n- Added EstimateEnumSize in helpers.h/cc to compute alignment and size for closed enums.\n- Added comprehensive unit tests in message_layout_helper_unittest.cc and helpers_unittest.cc.\n\nPiperOrigin-RevId: 969068445\n",
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