[PATCH] D105462: [X86] Add CRC32 feature.

[Wang Tianqing via Phabricator via cfe-commits]

tianqing created this revision.
Herald added subscribers: dexonsmith, dang, pengfei, hiraditya, mgorny.
tianqing requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

d8faf03807ac <https://reviews.llvm.org/rGd8faf03807ac059f669ddea8742dd540e58e45be> implemented general-regs-only for X86 by disabling all features
with vector instructions. But the CRC32 instruction in SSE4.2 ISA, which uses
only GPRs, also becomes unavailable. This patch adds a CRC32 feature for this
instruction and allows it to be used with general-regs-only.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D105462

Files:
  clang/docs/ClangCommandLineReference.rst
  clang/include/clang/Basic/BuiltinsX86.def
  clang/include/clang/Basic/BuiltinsX86_64.def
  clang/include/clang/Driver/Options.td
  clang/lib/Basic/Targets/X86.cpp
  clang/lib/Basic/Targets/X86.h
  clang/lib/Headers/CMakeLists.txt
  clang/lib/Headers/crc32intrin.h
  clang/lib/Headers/ia32intrin.h
  clang/lib/Headers/immintrin.h
  clang/lib/Headers/smmintrin.h
  clang/test/CodeGen/X86/x86-crc-builtins.c
  clang/test/CodeGen/attr-cpuspecific.c
  clang/test/CodeGen/attr-target-crc32-x86.c
  clang/test/CodeGen/attr-target-x86.c
  clang/test/Driver/x86-mgeneral-regs-only-crc32.c
  clang/test/Driver/x86-target-features.c
  clang/test/Preprocessor/x86_target_features.c
  llvm/include/llvm/Support/X86TargetParser.def
  llvm/lib/Support/Host.cpp
  llvm/lib/Support/X86TargetParser.cpp
  llvm/lib/Target/X86/X86.td
  llvm/lib/Target/X86/X86InstrFormats.td
  llvm/lib/Target/X86/X86InstrInfo.td
  llvm/lib/Target/X86/X86InstrSSE.td
  llvm/lib/Target/X86/X86Subtarget.h
  llvm/test/CodeGen/X86/crc32-intrinsics-fast-isel-x86_64.ll
  llvm/test/CodeGen/X86/crc32-intrinsics-x86.ll
  llvm/test/CodeGen/X86/crc32-intrinsics-x86_64.ll
  llvm/test/CodeGen/X86/crc32-target-feature.ll
  llvm/test/CodeGen/X86/sse42-intrinsics-fast-isel-x86_64.ll
  llvm/test/CodeGen/X86/sse42-intrinsics-x86_64.ll

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