[PATCH] D38307: [X86] Support v64i8 mulhu/mulhs

[Craig Topper via Phabricator via llvm-commits]

craig.topper created this revision.

This adds support for v64i8 mulhu/mulhs legalization based on the avx2 version of v32i8.

I'm not 100% sure I got the required shuffled mask correct here.


https://reviews.llvm.org/D38307

Files:
  lib/Target/X86/X86ISelLowering.cpp
  test/CodeGen/X86/vector-idiv-sdiv-512.ll
  test/CodeGen/X86/vector-idiv-udiv-512.ll

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