)]}'
{
  "commit": "a8ba9c4fa2ae1ae80738e7848c28c19a9aa564da",
  "tree": "aa488d58663dc908865a6c672ab26aef74dfe58f",
  "parents": [
    "3874c4541a2e7fe044f02cda962657be35314deb"
  ],
  "author": {
    "name": "Peter Klausler",
    "email": "pklausler@nvidia.com",
    "time": "Mon Jan 12 15:40:44 2026 -0800"
  },
  "committer": {
    "name": "GitHub",
    "email": "noreply@github.com",
    "time": "Mon Jan 12 15:40:44 2026 -0800"
  },
  "message": "[flang] Fix spurious NaN  result from infinite Kahan summation (#175373)\n\nThere are six instances of Kahan\u0027s extended precision summation\nalgorithm in flang/flang-rt, and they share a bug: the calculation of\nthe correction value produces a Nan due to the subtraction Inf-Inf after\nthe accumulation saturates to Inf. This leads to the surprising Nan\nresult from SUM([Inf, 0.]).\n\nThis bug doesn\u0027t affect run-time calculation of SUM when optimization is\nenabled -- lowering emits an open-coded SUM that lacks Kahan summation\n-- but it does affect compilation-time folding and -O0 runtime results.\n\nFix the one instance of Kahan summation in the runtime, and consolidate\nthe other five instances in Evaluate into one new member function, also\ncorrected.\n\nFixes https://github.com/llvm/llvm-project/issues/89528.",
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