[all-commits] [llvm/llvm-project] 7c1241: [GISel] Avoid creating a virtual register we don't...

[Craig Topper via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 7c12418021a97545d7e76c876464291932f151e6
      https://github.com/llvm/llvm-project/commit/7c12418021a97545d7e76c876464291932f151e6
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2024-12-09 (Mon, 09 Dec 2024)

  Changed paths:
    M llvm/lib/CodeGen/GlobalISel/LegalizerHelper.cpp

  Log Message:
  -----------
  [GISel] Avoid creating a virtual register we don't need. (#119305)

narrowScalarAddSub was creating a virtual register and then overwriting
the Register variable without using it. Add an else and only create it
when needed.



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