[clang] [CIR] cir.call with scalar return type (PR #135552)

[Andy Kaylor via cfe-commits]

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@@ -205,13 +205,15 @@ class CIRBaseBuilderTy : public mlir::OpBuilder {
   // Call operators
   //===--------------------------------------------------------------------===//
 
-  cir::CallOp createCallOp(mlir::Location loc, mlir::SymbolRefAttr callee) {
-    auto op = create<cir::CallOp>(loc, callee);
+  cir::CallOp createCallOp(mlir::Location loc, mlir::SymbolRefAttr callee,
+                           mlir::Type returnType = cir::VoidType()) {
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andykaylor wrote:

Can we make this non-optional?

https://github.com/llvm/llvm-project/pull/135552