[PATCH] D43083: [tablegen] Fixed few !foreach evaluation issues.

[Artem Belevich via Phabricator via llvm-commits]

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

- !foreach on lists didn't evaluate operands of the RHS operator. This made nested operators silently fail.
- A typo in the code could result in a wrong value substituted for an operation which produced a false '!foreach requires an operator' error.
- Keep recursion over the DAG within ForeachHelper. This simplifies things a bit as we no longer need to pass the Type around in order to prevent recursion.


https://reviews.llvm.org/D43083

Files:
  llvm/lib/TableGen/Record.cpp
  llvm/test/TableGen/foreach-eval.td

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