[all-commits] [llvm/llvm-project] 70e4fb: [X86] Add DAG combine to turn (vzext_movl (vbroadc...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: 70e4fb8a53984ff57b503cf13706c7e6683d650e
      https://github.com/llvm/llvm-project/commit/70e4fb8a53984ff57b503cf13706c7e6683d650e
  Author: Craig Topper <craig.topper at gmail.com>
  Date:   2020-03-08 (Sun, 08 Mar 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/vector-extend-inreg.ll

  Log Message:
  -----------
  [X86] Add DAG combine to turn (vzext_movl (vbroadcast_load)) -> vzext_load.

If we're zeroing the other elements then we don't need the broadcast.