[all-commits] [llvm/llvm-project] 527ef8: Reland "[X86] Support `_Float16` on SSE2 and up"

[Phoebe Wang via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 527ef8ca981e88a35758c0e4143be6853ea26dfc
      https://github.com/llvm/llvm-project/commit/527ef8ca981e88a35758c0e4143be6853ea26dfc
  Author: Phoebe Wang <phoebe.wang at intel.com>
  Date:   2022-06-28 (Tue, 28 Jun 2022)

  Changed paths:
    M clang/docs/LanguageExtensions.rst
    M clang/docs/ReleaseNotes.rst
    M clang/lib/Basic/Targets/X86.cpp
    A clang/test/CodeGen/X86/Float16-arithmetic.c
    A clang/test/CodeGen/X86/Float16-complex.c
    R clang/test/CodeGen/X86/avx512fp16-complex.c
    M clang/test/Sema/Float16.c
    M clang/test/Sema/conversion-target-dep.c
    M clang/test/SemaCXX/Float16.cpp
    M compiler-rt/test/builtins/CMakeLists.txt

  Log Message:
  -----------
  Reland "[X86] Support `_Float16` on SSE2 and up"

Enable `COMPILER_RT_HAS_FLOAT16` to solve the lit fail.

This is split from D113107 to address #56204 and https://discourse.llvm.org/t/how-to-build-compiler-rt-for-new-x86-half-float-abi/63366

Reviewed By: zahiraam, rjmccall, bkramer

Differential Revision: https://reviews.llvm.org/D128571