[all-commits] [llvm/llvm-project] ae7ab0: Add __hlt intrinsic for Windows ARM. (#96578)

[Amy Huang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: ae7ab043f2d8077ed00bb2d3239da4b96ad4b387
      https://github.com/llvm/llvm-project/commit/ae7ab043f2d8077ed00bb2d3239da4b96ad4b387
  Author: Amy Huang <akhuang at google.com>
  Date:   2024-07-08 (Mon, 08 Jul 2024)

  Changed paths:
    M clang/include/clang/Basic/BuiltinsAArch64.def
    M clang/lib/CodeGen/CGBuiltin.cpp
    M clang/lib/Headers/intrin.h
    M clang/lib/Sema/SemaARM.cpp
    M clang/test/CodeGen/arm64-microsoft-intrinsics.c
    M clang/test/Sema/builtins-microsoft-arm64.c
    M llvm/include/llvm/IR/IntrinsicsAArch64.td
    M llvm/lib/Target/AArch64/AArch64InstrInfo.td
    A llvm/test/CodeGen/AArch64/arm64-hlt.ll

  Log Message:
  -----------
  Add __hlt intrinsic for Windows ARM. (#96578)

Add __hlt, which is a MSVC ARM64 intrinsic. 

This intrinsic is just the HLT instruction. MSVC's version seems to
return something undefined; in this patch
it will just return zero. 

MSVC intrinsics are defined here
https://learn.microsoft.com/en-us/cpp/intrinsics/arm64-intrinsics.
I used unsigned int as the return type, because that is what the MSVC
intrin.h header uses, even though
it conflicts with the documentation.



To unsubscribe from these emails, change your notification settings at https://github.com/llvm/llvm-project/settings/notifications