[all-commits] [llvm/llvm-project] 8e317e: [InstCombine] Remove dead code from foldICmpShlOne...

Craig Topper via All-commits all-commits at lists.llvm.org
Sun Jan 15 19:11:15 PST 2023


  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 8e317e693a6c131391ee8ebc4321e907329b20ba
      https://github.com/llvm/llvm-project/commit/8e317e693a6c131391ee8ebc4321e907329b20ba
  Author: Craig Topper <craig.topper at sifive.com>
  Date:   2023-01-15 (Sun, 15 Jan 2023)

  Changed paths:
    M llvm/lib/Transforms/InstCombine/InstCombineCompares.cpp

  Log Message:
  -----------
  [InstCombine] Remove dead code from foldICmpShlOne. NFC

This code handles (icmp eq/ne (1 << Y), C) if C is a power of 2.

This case is also handled by the more general foldICmpShlConstConst
which is called before we reach foldICmpShlOne.




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