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MatMulNBits: stop the borrowed int4 path pre-empting MLAS SQNBit CompFp32 (up to 33x, 78x->2x vs ORT) - #1027

Merged

justinchuby merged 4 commits into

mainfrom

squad/roy-int4-acc0-mlas-dispatch

Aug 16, 2026

Commits on Aug 15, 2026
- MatMulNBits: stop the borrowed int4 path pre-empting MLAS SQNBit CompFp32
  
  justinchuby
  and
  Copilot
  committed
  a2e27d3
- MatMulNBits: add an independent oracle for the int4 acc0 -> MLAS route
  
  justinchuby
  and
  Copilot
  committed
  4c599ea
- Merge origin/main into squad/roy-int4-acc0-mlas-dispatch
  justinchuby
  committed
  651ebc7
Commits on Aug 16, 2026
- Merge remote-tracking branch 'origin/main' into squad/roy-int4-acc0-mlas-dispatch
  justinchuby
  committed
  5df5517