[clang] [llvm] [PowerPC] Add BCDCOPYSIGN and BCDSETSIGN Instruction Support (PR #144874)

[Aditi Medhane via llvm-commits]

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@@ -106,6 +106,7 @@ bool SemaPPC::CheckPPCBuiltinFunctionCall(const TargetInfo &TI,
   switch (BuiltinID) {
   default:
     return false;
+  case PPC::BI__builtin_ppc_bcdsetsign:
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AditiRM wrote:

Updated the descriptions and clarified notes for both builtins.

https://github.com/llvm/llvm-project/pull/144874