)]}'
{
  "commit": "f7549a9b636570e10df5301a920da5db3334f6ae",
  "tree": "03e6db9bdcb4bc9eb177bc67ba56988403955d86",
  "parents": [
    "751ed7b16433d2279286d0765f51cd36edc6d771"
  ],
  "author": {
    "name": "Fangrui Song",
    "email": "i@maskray.me",
    "time": "Tue Sep 01 19:17:08 2026 -0700"
  },
  "committer": {
    "name": "GitHub",
    "email": "noreply@github.com",
    "time": "Tue Sep 01 19:17:08 2026 -0700"
  },
  "message": "[ADT][SelectionDAG] Unique SDNodes in a UniquingSet (#220195)\n\nCSEMap keys SDNodes by a serialized FoldingSetNodeID. Every lookup\nprofiles the opcode, the VT list and the operands into a buffer, and\nevery probe rebuilds the candidate\u0027s whole profile to compare against\nit.\n\nUniquingSet compared a key against Info::getKey(*N), building a key from\nthe candidate on every probe. Add isEqual to the Info contract,\ndefaulting to that comparison, and expose a FoldingSetNodeID\u0027s\naccumulated words as a FoldingSetNodeIDRef so an Info that carries one\ncan hash it.\n\nKey nodes by SDNodeKey, which holds those fields directly and leaves\nonly what AddNodeIDCustom contributes serialized in a tail, which is\nempty for most opcodes. A lookup site keeps its ID.AddXxx lines: the key\nforwards them to the tail. isEqual matches the key against a candidate\u0027s\nfields and builds only the tail; an assertions build cross-checks the\nresult against the profile both would have had.\n\nAided by Opus 5",
  "tree_diff": [
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}