Use opaque ciphertext/plaintext type for openfhe #2471
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The main motivation here is to implement an alloc-to-inplace pass for OpenFHE. There are some ops in OpenFHE like relinearize which can be done in place but (hidden by OpenFHE's opaque ciphertext type) modify the underlying LWE type in a way that would invalidate our IR. By making openfhe types opaque, we can write a much simpler transform for alloc-to-inplace. However, this also requires passing along relevant configuration information to OpenFHE from something besides the LWE types. PiperOrigin-RevId: 844158883
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Use opaque ciphertext/plaintext type for openfhe
The main motivation here is to implement an alloc-to-inplace
pass for OpenFHE. There are some ops in OpenFHE like relinearize
which can be done in place but (hidden by OpenFHE's opaque ciphertext type)
modify the underlying LWE type in a way that would invalidate our IR.
By making openfhe types opaque, we can write a much simpler transform
for alloc-to-inplace. However, this also requires passing along relevant
configuration information to OpenFHE from something besides the LWE types.