[PATCH] D157700: [GlobalIsSel] Allow using PatFrags with multiple defs as the root of a combine rule

[Pierre van Houtryve via Phabricator via llvm-commits]

Pierre-vh updated this revision to Diff 549322.
Pierre-vh added a comment.

Document the new limitation


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D157700/new/

https://reviews.llvm.org/D157700

Files:
  llvm/docs/GlobalISel/MIRPatterns.rst
  llvm/include/llvm/Target/GlobalISel/Combine.td
  llvm/test/TableGen/GlobalISelCombinerMatchTableEmitter/patfrag-errors.td
  llvm/test/TableGen/GlobalISelCombinerMatchTableEmitter/pattern-errors.td
  llvm/utils/TableGen/GlobalISelCombinerMatchTableEmitter.cpp

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