[all-commits] [llvm/llvm-project] 08e4fe: [X86] Add RDPRU instruction

[Paul T Robinson via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 08e4fe6c61967d5c6c16ef7a4cc63d51c4992b55
      https://github.com/llvm/llvm-project/commit/08e4fe6c61967d5c6c16ef7a4cc63d51c4992b55
  Author: Paul Robinson <paul.robinson at sony.com>
  Date:   2022-07-06 (Wed, 06 Jul 2022)

  Changed paths:
    M clang/docs/ReleaseNotes.rst
    M clang/include/clang/Basic/BuiltinsX86.def
    M clang/include/clang/Driver/Options.td
    M clang/lib/Basic/Targets/X86.cpp
    M clang/lib/Basic/Targets/X86.h
    M clang/lib/Headers/CMakeLists.txt
    A clang/lib/Headers/rdpruintrin.h
    M clang/lib/Headers/x86intrin.h
    A clang/test/CodeGen/rdpru-builtins.c
    M clang/test/Driver/x86-target-features.c
    M clang/test/Preprocessor/x86_target_features.c
    M llvm/docs/ReleaseNotes.rst
    M llvm/include/llvm/IR/IntrinsicsX86.td
    M llvm/include/llvm/Support/X86TargetParser.def
    M llvm/lib/Support/X86TargetParser.cpp
    M llvm/lib/Target/X86/X86.td
    M llvm/lib/Target/X86/X86ISelLowering.cpp
    M llvm/lib/Target/X86/X86InstrInfo.td
    M llvm/lib/Target/X86/X86InstrSystem.td
    M llvm/lib/Target/X86/X86IntrinsicsInfo.h
    A llvm/test/CodeGen/X86/rdpru.ll
    M llvm/test/MC/Disassembler/X86/x86-32.txt
    M llvm/test/MC/Disassembler/X86/x86-64.txt
    A llvm/test/MC/X86/RDPRU.s

  Log Message:
  -----------
  [X86] Add RDPRU instruction

Add support for the RDPRU instruction on Zen2 processors.

User-facing features:

- Clang option -m[no-]rdpru to enable/disable the feature
- Support is implicit for znver2/znver3 processors
- Preprocessor symbol __RDPRU__ to indicate support
- Header rdpruintrin.h to define intrinsics
- "rdpru" mnemonic supported for assembler code

Internal features:

- Clang builtin __builtin_ia32_rdpru
- IR intrinsic @llvm.x86.rdpru

Differential Revision: https://reviews.llvm.org/D128934