[PATCH] D106721: [AArch64] Implemnt MSVC __mulh and __umulh builtins and corresponding IR level intrinsics

[Eli Friedman via Phabricator via cfe-commits]

efriedma added a comment.

Do we need LLVM intrinsics for these?  For the x86 equivalents, we just generate `mul i128`.


Repository:
  rG LLVM Github Monorepo

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  https://reviews.llvm.org/D106721/new/

https://reviews.llvm.org/D106721