[PATCH] D67874: Prefer AVX512 memcpy when applicable

[David Zarzycki via Phabricator via llvm-commits]

davezarzycki created this revision.
davezarzycki added a reviewer: craig.topper.
davezarzycki added a project: LLVM.
Herald added a subscriber: hiraditya.

When AVX512 is available and the preferred vector width is 512-bits or more, we should prefer AVX512 for memcpy().

https://bugs.llvm.org/show_bug.cgi?id=43240


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D67874

Files:
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/X86/memcpy.ll

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