[clang] [Headers][X86] Allow AVX2/AVX512 broadcast intrinsics to be used in Constexpr (PR #153363)

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TianYe717 wrote:

Hi, I noticed the failure in the AArch64 sanitizer build (RuntimeLibcalls.td: GNUEABIHalfConvertCalls redefinition).
Full details are available at:
    https://lab.llvm.org/buildbot/#/builders/164/builds/12518
This seems unrelated to my change, as I only modified X86 intrinsic headers and their tests. Other builds look fine. Please let me know if there’s anything I should do from my side. Thanks!

https://github.com/llvm/llvm-project/pull/153363