[all-commits] [llvm/llvm-project] 3a7313: [DAG] canCreateUndefOrPoison - add freeze(sign_ext...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3a731332178513bb11b50f7a3212845a77023d26
      https://github.com/llvm/llvm-project/commit/3a731332178513bb11b50f7a3212845a77023d26
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2022-08-15 (Mon, 15 Aug 2022)

  Changed paths:
    M llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
    M llvm/test/CodeGen/RISCV/iabs.ll

  Log Message:
  -----------
  [DAG] canCreateUndefOrPoison - add freeze(sign_extend_inreg(x,vt)) -> sign_extend_inreg(freeze(x),vt) support

Guaranteed not to create undef/poison