[clang] [llvm] [PowerPC] Add Support for BCDSHIFT, BCDSHIFTR, BCDTRUNC, BCDUTRUNC, and BCDUSHIFT instruction support (PR #154715)

[Aditi Medhane via cfe-commits]

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@@ -104,6 +104,33 @@ bool SemaPPC::CheckPPCBuiltinFunctionCall(const TargetInfo &TI,
     return Diag(TheCall->getBeginLoc(), diag::err_64_bit_builtin_32_bit_tgt)
            << TheCall->getSourceRange();
 
+  // Common BCD type-validation helpers
+  // Emit error diagnostics and return true on success
+  //  - IsVectorType: enforces vector unsigned char
+  //  - IsIntType: enforces any integer type
+  // Lambdas centralize type checks for BCD builtin handlers
+  QualType VecType = Context.getVectorType(Context.UnsignedCharTy, 16,
+                                           VectorKind::AltiVecVector);
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AditiRM wrote:

makes sense. i’ve moved the vector type construction inside `IsVectorType` so it’s only created when needed and scoped to that check.

https://github.com/llvm/llvm-project/pull/154715