[all-commits] [llvm/llvm-project] 445143: [TableGen][GISel] Delete unused `Src` arguments (N...

[Sergey Barannikov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 44514316bd5ef656076b6baaf6bccb298d98f0ea
      https://github.com/llvm/llvm-project/commit/44514316bd5ef656076b6baaf6bccb298d98f0ea
  Author: Sergey Barannikov <barannikov88 at gmail.com>
  Date:   2024-12-21 (Sat, 21 Dec 2024)

  Changed paths:
    M llvm/utils/TableGen/GlobalISelEmitter.cpp

  Log Message:
  -----------
  [TableGen][GISel] Delete unused `Src` arguments (NFC) (#120445)

The last uses were removed in #120332 and #120426.

When emitting renderers, we shouldn't look at the source DAG at all. The
required information is provided by the destination DAG and by the
instructions referenced in that DAG. Sometimes, we do want to know if a
result was referenced in the source DAG; this can be checked by calling
`RuleMatcher::hasOperand`. Any other use of the source DAG when emitting
renderers is likely an error.

Pull Request: https://github.com/llvm/llvm-project/pull/120445



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