[PATCH] D43519: [tblgen] Allow !cast to records that don't yet exist during multiclass parsing.

[Artem Belevich via Phabricator via llvm-commits]

tra created this revision.
tra added reviewers: arsenm, craig.topper, nhaehnle.
Herald added subscribers: hiraditya, jlebar, wdng, sanjoy.

This makes tablegen's behavior more consistent with the way it lazily folds other operators.
E.g. it's perfectly fine to have a binary/ternary ops that can't be folded at the time of multiclass parsing.


https://reviews.llvm.org/D43519

Files:
  llvm/include/llvm/TableGen/Record.h
  llvm/lib/TableGen/Record.cpp
  llvm/lib/TableGen/TGParser.cpp
  llvm/test/TableGen/MultiClass-defm-fail.td
  llvm/test/TableGen/MultiClass-defm.td

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