[all-commits] [llvm/llvm-project] 2ab2ff: [X86] createVPDPBUSD - only use 512-bit X86ISD::VP...

[Simon Pilgrim via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 2ab2ffefc726095aaf1b2875d14267e35fbfbec5
      https://github.com/llvm/llvm-project/commit/2ab2ffefc726095aaf1b2875d14267e35fbfbec5
  Author: Simon Pilgrim <llvm-dev at redking.me.uk>
  Date:   2025-09-29 (Mon, 29 Sep 2025)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/test/CodeGen/X86/dpbusd.ll
    M llvm/test/CodeGen/X86/dpbusd_const.ll

  Log Message:
  -----------
  [X86] createVPDPBUSD - only use 512-bit X86ISD::VPDPBUSD on AVX512VNNI targets (#161152)

Inspired by #160928 - if we have a AVX512 target capable of AVXVNNI but not AVX512VNNI then we must split 512-bit (or larger) types to 256-bits



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