[all-commits] [llvm/llvm-project] 884e9a: [SimplifyCFG] Replace condition value when threading

[Nikita Popov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 884e9a877b378f5bf03f3c85a25b7a139ef6c8d8
      https://github.com/llvm/llvm-project/commit/884e9a877b378f5bf03f3c85a25b7a139ef6c8d8
  Author: Nikita Popov <npopov at redhat.com>
  Date:   2022-04-29 (Fri, 29 Apr 2022)

  Changed paths:
    M llvm/lib/Transforms/Utils/SimplifyCFG.cpp
    M llvm/test/Transforms/SimplifyCFG/jump-threading.ll

  Log Message:
  -----------
  [SimplifyCFG] Replace condition value when threading

Replace the condition value with the known constant value on the
threaded edge. This happens implicitly with phi threading because
we replace with the incoming value, but not for non-phi threading.