[clang] [CIR] Upstream cir.call with scalar arguments (PR #136810)

[Sirui Mu via cfe-commits]

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@@ -21,9 +21,24 @@ let cppNamespace = "::cir" in {
   // The CIRCallOpInterface must be used instead of CallOpInterface when looking
   // at arguments and other bits of CallOp. This creates a level of abstraction
   // that's useful for handling indirect calls and other details.
-  def CIRCallOpInterface : OpInterface<"CIRCallOpInterface", []> {
+  def CIRCallOpInterface : OpInterface<"CIRCallOpInterface", [CallOpInterface]> {
     // Currently we don't have any methods defined in CIRCallOpInterface. We'll
     // add more methods as the upstreaming proceeds.
+    let methods = [
+      InterfaceMethod<"", "mlir::Operation::operand_iterator",
+                      "arg_operand_begin", (ins)>,
+      InterfaceMethod<"", "mlir::Operation::operand_iterator",
+                      "arg_operand_end", (ins)>,
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Lancern wrote:

I have confirmed that these two functions are not used in this PR and I removed them for now. We could add them back if they're proven necessary in future upstreaming works.

https://github.com/llvm/llvm-project/pull/136810