[all-commits] [llvm/llvm-project] cdd1cd: [X86] Don't form masked instructions if the operat...

[topperc via All-commits]

  Branch: refs/heads/master
  Home:   https://github.com/llvm/llvm-project
  Commit: cdd1cd712087377b69aee1c9f13be7cd73fb340d
      https://github.com/llvm/llvm-project/commit/cdd1cd712087377b69aee1c9f13be7cd73fb340d
  Author: Craig Topper <craig.topper at intel.com>
  Date:   2020-03-27 (Fri, 27 Mar 2020)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
    M llvm/lib/Target/X86/X86InstrAVX512.td
    M llvm/test/CodeGen/X86/avx512-vec-cmp.ll
    M llvm/test/CodeGen/X86/x86-interleaved-access.ll

  Log Message:
  -----------
  [X86] Don't form masked instructions if the operation has an additional user.

This will cause the operation to be repeated in both a mask and another masked
or unmasked form. This can a wasted of execution resources.

Differential Revision: https://reviews.llvm.org/D60940