[PATCH] D63814: [TableGen] Allow DAG isel patterns to override default operands.

[Simon Tatham via Phabricator via llvm-commits]

simon_tatham updated this revision to Diff 206846.
simon_tatham added a comment.

Changed my mind about the opt-in system: instead of using a subclass of `OperandWithDefaultOps`, I've switched to using a flag field inside the existing class.

That should make it easier for a back end to define some flags one way and some another. And if people ever want to switch the default over to permitting overrides, and have a small number of back ends //unset// the same flag, it will be easier this way.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D63814/new/

https://reviews.llvm.org/D63814

Files:
  llvm/include/llvm/Target/Target.td
  llvm/test/TableGen/DAGDefaultOps.td
  llvm/utils/TableGen/CodeGenDAGPatterns.cpp
  llvm/utils/TableGen/CodeGenDAGPatterns.h
  llvm/utils/TableGen/DAGISelMatcherGen.cpp

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