genai testing

Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>

genaisrc/myopt.genai.mts

@@ -0,0 +1,34 @@
+script({
+    title: "Invoke LLM code optimization",
+    files: "code_slices/muz/spacer/orig_spacer_antiunify.cpp_anti_unifier.cpp"
+})
+
+
+async function invokeLLMUpdate(code) {
+    const answer = await runPrompt(
+        (_) => {
+            _.def("CODE", code);
+            _.$`
+            You are a highly experienced compiler engineer with over 20 years of expertise, 
+        specializing in C and C++ programming. Your deep knowledge of best coding practices 
+        and software engineering principles enables you to produce robust, efficient, and 
+        maintainable code in any scenario.
+
+        Please modify the original code in <CODE> to ensure that it uses best practices for optimal code execution.'    `
+        }, {
+            system: [],
+            systemSafety: false
+        }
+    )
+    console.log(answer.text);
+    return answer.text;
+}
+
+
+const inputFile = env.files[0];
+const file = await workspace.readText(inputFile);
+const answer = await invokeLLMUpdate(file.content);
+// Extract the code from the answer by removing ```cpp and ```:
+let code = answer.replace(/```cpp/g, "").replace(/```/g, "");
+const outputFile = inputFile.filename + ".patch";
+await workspace.writeText(outputFile, code);