[llvm] [mlir] [mlir][EmitC] Add func, call and return operations and conversions (PR #79612)

[Simon Camphausen via llvm-commits]

================
@@ -0,0 +1,119 @@
+//===- FuncToEmitC.cpp - Func to EmitC Patterns -----------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements patterns to convert the Func dialect to the EmitC
----------------
simon-camp wrote:

I don't have strong feelings about this, so I'm fine with keeping it as is.

https://github.com/llvm/llvm-project/pull/79612