[PATCH] D38668: [X86] Fix for 20871

[Craig Topper via Phabricator via llvm-commits]

craig.topper added a comment.

Can you add a test case? This should be sufficient

  define i128 @foo(i128 %x, i128 %y) {
    %c = mul i128 %x, %y
    ret i128 %c
  }


https://reviews.llvm.org/D38668