[all-commits] [llvm/llvm-project] ddc49d: [clang] [MSVC] Implement __mulh and __umulh builti...

[Martin Storsjö via All-commits]

  Branch: refs/heads/release/13.x
  Home:   https://github.com/llvm/llvm-project
  Commit: ddc49d0f1f2bd80e9b23a8d93fa60129c0b90121
      https://github.com/llvm/llvm-project/commit/ddc49d0f1f2bd80e9b23a8d93fa60129c0b90121
  Author: Martin Storsjö <martin at martin.st>
  Date:   2021-08-19 (Thu, 19 Aug 2021)

  Changed paths:
    M clang/include/clang/Basic/BuiltinsAArch64.def
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/Headers/intrin.h
    M clang/test/CodeGen/arm64-microsoft-intrinsics.c

  Log Message:
  -----------
  [clang] [MSVC] Implement __mulh and __umulh builtins for aarch64

The code is based on the same __mulh and __umulh intrinsics for
x86.

This should fix PR51128.

Differential Revision: https://reviews.llvm.org/D106721

(cherry picked from commit cc3affd8b02091bf475f9dd083802e1b6a232be1)