)]}'
{
  "commit": "6245db1c0423340d09e5f356ddb1c9463ff08a1d",
  "tree": "92230cfcbe04861815d2ef748d6aab9edfe712a9",
  "parents": [
    "c793f90267c946930761fd257c3685721074abc2"
  ],
  "author": {
    "name": "Han-Chung Wang",
    "email": "hanhan0912@gmail.com",
    "time": "Thu Jan 09 21:29:16 2025 -0800"
  },
  "committer": {
    "name": "GitHub",
    "email": "noreply@github.com",
    "time": "Fri Jan 10 05:29:16 2025 +0000"
  },
  "message": "[Stream] Attach layouts to tensor ops in encoding specialization pass. (#19649)\n\nThe revision attaches the layouts to Stream tensor ops, e.g.,\r\nstream.tensor.sizeof, etc. Each layout is wrapped with an attribute\r\nwhere the attribute should implement the `calculateStorageSizeInBytes`\r\ninterface method. Because only the device/target knows the details. It\r\nprovides a way to materialize the serialized layouts into actual storage\r\nsize.\r\n\r\nTo teach the pass about layouts, there are few core changes happening in\r\nthe revision.\r\n\r\n1. The revision introduces `cloneWithSimplifiedConfig` interface method\r\nto EncodingLayoutAttrInterface. Each backend encoding attribute can\r\nfilter needed configurations when making layout resolvers in\r\nHALAffinityAnalysisDialectInterface. This is needed because attributes\r\nare not mutable. We always need to create a new attribute if we want to\r\nupdate the parameters. The main benifit is that it makes the IR dump\r\nmuch less verbose.\r\n2. The revision also introduces `getLayout` interface method, which\r\nreturns the encoded layouts into encoding attributes. The CPU and VMVX\r\nencoding attributes implement it in the revision, and it returns the\r\nserialized MaterializeEncodingInfo struct as a dictionary attribute. See\r\nbelow example for more details.\r\n\r\n```\r\n... layouts \u003d [#iree_cpu.vmvx_encoding_layout\u003cconfiguration \u003d\r\n  {encoding_info \u003d\r\n    {innerDimsPos \u003d [0, 1],\r\n     innerTileSizes \u003d [8, 4],\r\n     outerDimsPerm \u003d [0, 1]}}\u003e\r\n]\r\n```\r\n\r\n---------\r\n\r\nSigned-off-by: hanhanW \u003chanhan0912@gmail.com\u003e",
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