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Add reverse AD for llvm.intr.memcpy#2841

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xys-syx wants to merge 4 commits into
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memcpy
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Add reverse AD for llvm.intr.memcpy#2841
xys-syx wants to merge 4 commits into
mainfrom
memcpy

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@xys-syx xys-syx commented May 28, 2026

llvm.intr.memcpy has no registry in reverse AD, which cause "could not compute the adjoint for this operation "llvm.intr.memcpy"".

Reverse rule used here:

  d_src[i] += d_dst[i]
  d_dst[i] = 0

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