[clang] [CIR] Upstream ComplexType builtin_complex (PR #144225)

[Amr Hesham via cfe-commits]

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@@ -49,6 +49,14 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
     }
   }
 
+  switch (builtinID) {
+  case Builtin::BI__builtin_complex: {
+    mlir::Value real = emitScalarExpr(e->getArg(0));
+    mlir::Value imag = emitScalarExpr(e->getArg(1));
+    return RValue::getComplex(real, imag);
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AmrDeveloper wrote:

Yes, once #144519 is merged, I will update it

https://github.com/llvm/llvm-project/pull/144225